15 November

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 10:24
  Best multiplatform C++ Library for screen, audio and microphonecapture [on hold] - Baschdel Newest 'ffmpeg' Questions - Stack Overflow
  Im searching for some librarys C++. I'm trying to record an microphone and capture the computerscreen. At the moment I am recording audio with portaudioand use the screencapture part of ffmpeg. Muxing the streams together should be accomplished by ffmpeg. The whole project should run on macOS, Windows and Linux. I'm relativly new to this subject so I really don't know if this are the right tools to use, or if there are much easyer and better tools. For my understanding ffmpeg is the biggest and best library for sclaing muxing, etc. But ffmpeg is not great in recordig screen or audio. (...)
• 15:33
  Convert file with any extension to MP4 with ffmpeg - not legit Newest 'ffmpeg' Questions - Stack Overflow
  I am using youtube-dl and ffmpeg to create a youtube downloader and converter (for personal use). I am trying to download a video and convert it to MP4. The problem I have, is that youtube-dl downloads the video in a variety of formats. Is there a way that I can download the video and then tell FFMPEG to convert it, not knowing the current file type? I tried using a * wild card but that results in an error. ⓐecho off title youtube downloader set /p name= URL: echo Select a type. (vid/mp3/mp4) set /p type= IF /i "%type%"=="vid" goto vid IF /i "%type%"=="mp3" goto mp3 IF /i (...)
• 14:52
  How To Call JAVA Methods from inside of a Thread in JNI - Falcuun Newest 'ffmpeg' Questions - Stack Overflow
  TL;DR; I'm having a problem with passing my FFMPEG raw data from C++ code to JAVA code, for displaying, through a thread. There is a server set up that sends out encoded frames to its clients. Those encoded frames are encoded with some FFMPEG magic. When received on client side, the fore-mentioned frames are getting decoded into raw RGB data (as a unsigned char *). The problem now is that frames are being received in a "listener" of sorts. Just a thread running in the background polling the server and running specific onFrame function once a new frame is available. The current solution (...)
• 13:16
  add localtime to each frame as metadata or subtitle while streaming use ffmpeg - Mohammad M Newest 'ffmpeg' Questions - Stack Overflow
  I want to encode some raw frames as nvenc_h264 and then stream it over UDP. What I need, now, is to add some data like capturing time to each frame as its metadata or subtitle(just for that frame or specifying in the metadata that it is just related to which frame.). now I use this command in C# to start FFmpeg for receiving raw frame using pipe and stream it over UDP. "-f rawvideo -vcodec rawvideo -pixel_format rgba" + " -colorspace bt709" + " -s " + width + "x" + height + " -framerate " + frameRate + " -vsync 0 " + " -loglevel warning -i - "// +// preset.GetOptions() + " -c:v (...) -- https://github.com/keijiro/FFmpegOut
• 13:34
  Youtube-dl cannot read various set on batch script - Al UrbaseR Blongtous Newest 'ffmpeg' Questions - Stack Overflow
  I created an batch-script that positioned with youtube-dl and ffmpeg. I set several set to put URL and Video/Audio ID. Here my script that I simplified ⓐecho off cd /d %root%\\YT color 0a title Youtube Downloader setlocal enableDelayedExpansion set q=^" color 0a :submenu echo Please enter URL. set /p f1="URL: " echo Checking ID... youtube-dl -F %f1% ping localhost -n 2 >nul goto menu :menu echo. echo Script created by UrbaseR echo ___________________________________________________________ echo. echo MENU echo ___________________________________________________________ echo OS Windows - (...)
• 11:55
  ffmpeg: Text rendered in a box with alignment - Hemanth Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to render text onto a video, using the drawtext option. I would like it to appear in a box of a certain dimension (smaller than the video dimensions). For example, if the video is of size 480x360, I would like to render text in a box of 100x100. I need this text to be justify aligned (both the left and right margins should be aligned). Is there some option in ffmpeg to do this? If not, is there some open source library that can achieve the (...)
• 11:09
  How do you convert an entire directory with ffmpeg? - Eugene Newest 'ffmpeg' Questions - Stack Overflow
  How do you convert an entire directory/folder with ffmpeg via command line or with a batch script?
• 10:36
  FFmpeg/DASH: duration or timestamp out of range for mov/mp4 format - mike Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert a aac stream to dash. The issue is that I get a lot of errors as below(though it seems to segment it into multiple files but I get errors on the player too). The question is why do I get these errors and how can I fix it? If I simply convert "copy" it into to a single mp4 file it works without error. ffmpeg -i "a.mkv" -y -map 0:1 -c:0 copy -min_seg_duration 1000000 -use_timeline 1 -use_template 1 -init_seg_name init.mp4s -media_seg_name "\\$Number\\$.mp4s" -adaptation_sets "id=1,streams=0" -remove_at_exit 0 -f dash -dash 1 "out/stream.mpd" -loglevel error Output [mp4 (...)
• 10:20
  Is there a way to convert a .PAR file extension to a .AVI or .MP4 using FFMPEG? - PuppyD13 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to convert .PAR files to .AVI or .MP4 using FFMPEG. However, when I try to convert to .AVI it's giving me the following error: [mpeg4 ⓐ 0000000000702200] header damaged. Error while decoding stream #0:0: Invalid data found when processing input. When I try to convert the .PAR to .MP4, it completes the conversion but the outputted footage will be all scrambled and oddly enough it will include frames from other channels(cameras). Is there a way how I can successfully convert .PAR file to .AVI or .MP4, (...)
• 10:04
  Can't use libopenh264-2.0.0-android.so for my android app because of 32-bit support - Kiem Duong Newest 'ffmpeg' Questions - Stack Overflow
  In my video editing android app, because of licensing reason, I had to download libopenh264-2.0.0-android.so.bz2 dynamically from this site https://github.com/cisco/openh264/releases to use with ffmpeg. However, if I disable 64-bit for the app, I can't publish the app on Google Play. The store requires 64-bit support. If I enable 64-bit, I can't use the openh264-android.so library, the ffmpeg commands don't work Here is the way I disabled 64-bit in build.gradle ndk abiFilters "armeabi","armeabi-v7a","x86" Anyone can help on this issue please? (...) -- https://github.com/cisco/openh264/releases
• 09:31
  'undefined symbol: __stack_chk_guard' in libopenh264.so when building FFmpeg with emcc - Christophe Fuzier Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to build codecbox.js on Ubuntu 18.04, which involves building FFmpeg with emcc. At some stage of the build process, FFmpeg's configure script tries to process the following code: #include #include long check_WelsGetCodecVersion(void) return (long) WelsGetCodecVersion; int main(void) int ret = 0; ret |= ((intptr_t)check_WelsGetCodecVersion) & 0xFFFF; return ret; and I get a linker error: wasm-ld: error: /.../codecbox.js/build/dist/lib/libopenh264.so: undefined symbol: __stack_chk_guard It seems to be related to Stack Smashing Protector compiler feature. I tried to (...) -- codecbox.js, Stack Smashing Protector
• 09:31
  How to add custom external video filter to ffmpeg at runtime? - alex Newest 'ffmpeg' Questions - Stack Overflow
  Trying to build ffplay app that uses ffmpeg LGPL build with custom filter that I want to plug in during runtime. Differently from adding custom filter during compilation described scenario is not documented, thus tried to experiment. Tried executing avfilter_register and avfilter_graph_alloc_filter functions before avfilter_graph_parse_ptr with avfilter_graph_parse_ptr resulting in -22 return value (Invalid argument). Filter graph string: [in] split [T1], fifo, [T2] overlay=0:H/2 [out]; [T1] fifo, crop=iw:ih/2:0:ih/2, my_edgedetect=low=0.1:high=0.4 [T2] Lines added to (...) -- ffplay, LGPL build, adding custom filter during compilation, avfilter_register, avfilter_graph_alloc_filter, avfilter_graph_parse_ptr, configure_filtergraph, Custom edge detect filter
• 09:07
  ffmpeg - Convert mkv to mp4 on ubuntu 18.10 error? - ScipioAfricanus Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to convert some mkvs to mp4s on Ubuntu 18.10 with ffmpeg, and I keep getting the error below. Aby thoughts? I am following https://linuxconfig.org/install-ffmpeg-on-ubuntu-18-04-bionic-beaver-linux#h2-operating-system-and-software-versions I have installed ffmpeg and installed: sudo apt install -y libopus-dev libmp3lame-dev libfdk-aac-dev libvpx-dev libx264-dev yasm libass-dev libtheora-dev libvorbis-dev mercurial cmake Command I ran with output: ffmpeg -i 'video.mkv' -codec copy 'video.mp4' -strict -2 -y ffmpeg version 4.0.2-2 Copyright (c) 2000-2018 the FFmpeg developers (...) -- https://linuxconfig.org/install-ffmpeg-on-ubuntu-18-04-bionic-beaver-linux#h2-operating-system-and-software-versions
• 08:13
  video concat in flutter with ffmpeg plugin, unable to get correct output - Deepak Gehlot Newest 'ffmpeg' Questions - Stack Overflow
  i have an issue with video concat in flutter with ffmpeg plugin, I am getting return code 0 which means success, but when I checked output video its not merge two video its only first video My video format is MP4. here is my command _flutterFFmpeg.execute('-i "concat:$v2.path|$v1.path|$v2.path" -c copy -y $fileJoin.path')
• 07:19
  Ffmpeg rtmp to hls conversion but how to solve network issue? - Baka-Maru Lama Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert hls stream from rtmp source and its' working fine but the problem is when rtmp server is down or network issue the ffmpeg hls conversion process gets stuck and never comes to work again even if rtmp server is back online. I've tried -reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 5 command - it says option is not recognized options by the way I'm using ffmpeg [v4.2.1]. I'm using following ffmpeg commands ffmpeg -i rtmp://localhost/living/test ^ -max_muxing_queue_size 9999 ^ -async 1 -vf yadif -g 29.97 -r 23 ^ -b:v:0 3150k -c:v libx264 -filter:v:0 (...)
• 08:23
  ffmpeg convert from H.264 (High 4:4:4 Profile) to H.264 (Main Profile) - Milad Newest 'ffmpeg' Questions - Stack Overflow
  How can I convert a video from H.264 (High 4:4:4 Profile) to H.264 (Main Profile) using ffmpeg? I can't do that with this command: ffmpeg -i 1/25359.mp4 -profile:v main out.mp4. That'd return an error: ... That'd return an error: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1/25359.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf56.40.101 Duration: 00:00:06.08, start: 0.000000, bitrate: 1059 kb/s Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv444p, 351x297, 1057 kb/s, 12.50 fps, 12.50 tbr, 12800 tbn, 25 (...)
• 05:48
  Mix 2 audio files with android ffmpeg android - user3673182 Newest 'ffmpeg' Questions - Stack Overflow
  I am developing an android application for mixing 2 audio files.And i use android ffmpeg for that.I use following lib. from GitHub https://github.com/guardianproject/android-ffmpeg-java I use following code to mix 2 audio files from activity . try File fileAppRoot = new File(getApplicationInfo().dataDir); SoxController sxCon = new SoxController(fileAppRoot, new ShellUtils.ShellCallback() ⓐOverride public void shellOut(String shellLine) System.out.println(shellLine); ⓐOverride public void processComplete(int exitValue) System.out.println("hello"); ); List files=new ArrayList(); (...) -- https://github.com/guardianproject/android-ffmpeg-java
• 02:49
  Open raw audio with avformat_open_input - IMelker Newest 'ffmpeg' Questions - Stack Overflow
  I want to fill ffmpeg.formatCtx for raw(LINEAR16,48000khz) audio file using avformat_open_input(). I've tried to pass own AVInputFormat, but not suceeded in it. This is how i used to open file. std::string fn = "file:" + this->file.path; int r = avformat_open_input(&ffmpeg.formatCtx, fn.c_str(), nullptr, nullptr); Tried to find needed format with av_find_input_format(), but not succeeded to0. Without input format ffmpeg determines file as mp3. Is there convenient way to do such (...)
• 02:28
  On ffmpeg, how to bypass low-pass filter for LFE channel when encoding .wav to .ac3? - CC2023 Newest 'ffmpeg' Questions - Stack Overflow
  Looks like ffmpeg encoding added a low-pass filter for the LFE channel by default. Crossover is around 150Hz~ish. Does anyone know how to bypass (disable) the low-pass filter? This is command I used: ffmpeg -i 6_channels.wav -c:a ac3 5_1.ac3 Thanks.

14 November

Revisions : multilang http://zone.spip.org/trac/spip-zone/log/_plugins_/multilang

• 15:41
  Revision 118634: Icône renommée, suite - Charles Razack Revisions : multilang
  Icône renommée, suite -- Log
• 15:37
  Revision 118632: Gros oups : l'identifiant de la langue était extrait directement du ... - Charles Razack Revisions : multilang
  Gros oups : l'identifiant de la langue était extrait directement du texte même des boutons, en supprimant les crochets :/ Mais du coup maintenant on met le nom complet de la langue, patatra... Il faut utiliser un attribut pour ce genre de choses, « lang » est tout indiqué. -- Log
• 15:37
  Revision 118631: icone renommée - Charles Razack Revisions : multilang
  icone renommée -- Log
• 15:37
  Revision 118630: Pas de majuscule forcée pour le nom des langues - Charles Razack Revisions : multilang
  Pas de majuscule forcée pour le nom des langues -- Log
• 05:41
  Revision 118618: [Salvatore] [source:_plugins_/multilang/trunk/lang/ multilang] Export ... - salvatoreⓐ… Revisions : multilang
  [Salvatore] multilang Export depuis ​http://trad.spip.net -- Log

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:01
  FFMPEG HLS stream for Android and IOS - Poda Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to stream to mobile devices with ffmpeg and apache2.2 but I haven't been successful. I used this command to create the segments and the playlist: ffmpeg -i http://x.x.x.x:8080 -codec:v libx264 -r 25 -pix_fmt yuv420p -profile:v baseline -level 3 -b:v 500k -s 640x480 -codec:a aac -strict experimental -ac 2 -b:a 128k -movflags faststart -flags -global_header -map 0 -f hls -hls_time 10 -hls_list_size 5 -hls_allow_cache 0 -sc_threshold 0 -hls_flags delete_segments -hls_segment_filename out%05d.ts list.m3u8 The source is a http stream which is streamed by VLC media player. Example (...)
• 20:46
  Generating a waveform of raw audio using ffmpeg not working right (not showing clippings) - Sergey Romanyuk Newest 'ffmpeg' Questions - Stack Overflow
  I generated a waveform of the raw audio with ffmpeg and it looks as perfectly normal audio on the picture. But when I imported it in Audacity, I can see and hear that the audio is clipping. I tried simple command: ffmpeg -f s16le -ar 16000 -ac 1 -i audio.raw -lavfi showwavespic audio.png With this result: waveform image 1 And also tried this solution https://stackoverflow.com/a/32276471/12253501 Looks much prettier, but still can't see that audio actually clipped: waveform image 2. For the second one I made sure to delete "compand=gain=-6" to get the actual audio level. And here's (...) -- waveform image 1, waveform image 2, screenshot from Audacity, raw and wav
• 22:13
  Rails 6 ActiveStorage re-encode videos - gorgon Newest 'ffmpeg' Questions - Stack Overflow
  Tried to use ActiveStorage::Previewer:VideoPreviewer to reencode original videos into smaller resolution and length, but it seems that it can only produce/extract image from video. Also tried to create a custom VideoPreviewer by using ffmpeg command to reencode videos, and rails seems to always favor the default ActiveStorage::Previewer::VideoPreviewer. Even if i kick out default video preview from rails previewer and put the custom one, rails still tried to use imagemagick and generates images class VideoPreviewer Is there a way to achieve this with ActiveStorage or i need to go back (...)
• 17:24
  How to map frame extracted with ffmpeg and subtitle of a video? (frame accuracy problem) - Abitbol Newest 'ffmpeg' Questions - Stack Overflow
  would like to generate text files for frames extracted with ffmpeg, containing subtitle of the frame if any, on a video for which I have burn the subtitles using ffmpeg also. I use a python script with pysrt to open the subrip file and generate the text files. What I am doing is that each frames is named with the frame number by ffmpeg, then and since they are extracted at a constant rate, I can easily retrieve the time position of the frame using the formula t1 = fnum/fps, where fnum is the number of the frame retrieved with the filename, and fps is the frequency passed to ffmpeg for (...)
• 16:50
  Using FFmpeg or Similar to Normalize audio in a video to EBU R128 standard - MrNeedHelpPlease Newest 'ffmpeg' Questions - Stack Overflow
  This is my first time here on stack overflow asking question. I am stuck and really struggling with this. I am trying to make some of my MXF video files to be EBU r128 standard for its audio. This means that it has to be -23 and not higher than 0.5. My current process Watch_folder > Encoding to MXF > Output_folder I need to makesure when its comes to output folder, those MXF files are EBU R128 Loudness compliant. What I have done so Far: FFMPEG: ffmpeg -i input.mxf -af loudnorm=I=-23:LRA=7:tp=-2:print_format=json -f null - got the result: Input Integrated: -15.1 LUFS Input True (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 15:44
  avcodec/avcodec: Adapt the doc of av_bsf_send_packet to match its actual implementation. - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/avcodec: Adapt the doc of av_bsf_send_packet to match its actual implementation. Explicitly allowing empty packets to signal flushing helps getting rid of special cases. It does not hinder the ability to send i.e. timing-only packets, because one can send packets with zero size and pkt->data set. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/avcodec.h
• 15:06
  avformat/av1dec: Redo flushing of bsf - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/av1dec: Redo flushing of bsf The current approach has two different calls to av_bsf_send_packet(): A normal one, sending a packet; and an extraordinary one just for flushing. These can be unified into one by making use of the newly documented fact that av_bsf_send_packet() allows to signal flushing via empty packets (i.e. packets without data and side-data). This also fixes CID 1455685 which resulted from the fact that the call for flushing was not checked given that it couldn't fail. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Signed-off-by: James (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 16:02
  Create movie programatically - Martin Delille Newest 'ffmpeg' Questions - Stack Overflow
  I would like to create a movie programatically. My first iteration is to create a picture sequence with QPainter rendering (see https://github.com/MartinDelille/videogenerator) and then assemble them with ffmpeg but I would be more happy to generate the video file directly. I choose QPainter, but I'm open to QML rendering mechanism which is more modern in my opinion. What would be the best approach for this? -- https://github.com/MartinDelille/videogenerator
• 15:59
  How to add subtitles to the encoded video using ffmpeg? - geo-freak Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to add my srt file to the video using the options which were answered here before. My input file has captions in it by default. I tried in different ways to get the captions enabled in my encoded video. Below are the commands I used. ffmpeg -i input.ts -i captions.srt -b:a 32000 -ar 48000 -force_key_frames 'expr:gte(t,n_forced*3)' -acodec libfaac -hls_flags single_file -hls_list_size 0 -hls_time 3 -vcodec libx264 -s 320x240 -b:v 512000 -maxrate 512000 -c:s mov_text outfile.ts But I couldn't see the captions after I see the mediainfo of the encoded file. You can see the log (...)
• 13:59
  I have installed FFMPEG and can't find it inside a PHP script - Antop Newest 'ffmpeg' Questions - Stack Overflow
  I have installed FFMPeg in CentOS. It works perfectly. It's inside /usr/bin directory. Also, I have PHP 7.2.24 that comes with Plesk 18.0.20. I want to use FFMPeg inside a PHP script, but that script can't find the executable of FFMpeg. I have tried giving the exact route (/usr/bin/ffmpeg) but doesn't work. It's a production server. The same script, in my development server (macOS) works perfectly. I tried using: var_dump(getenv('PATH')); var_dump(exec('which ffmpeg')); var_dump(ini_get('open_basedir')); var_dump(is_file(exec('which ffmpeg'))); var_dump(is_executable(exec('which (...)
• 13:52
  How to convert image to video using fluent-ffmpeg in NodeJS - MjM Newest 'ffmpeg' Questions - Stack Overflow
  I would like to create a video using fluent-ffmpeg in NodeJS. My objective is to create a video using one image. And what I have done so far is the following: var express = require('express') var router = express.Router() const ffmpeg = require('fluent-ffmpeg'); router.get('/test', function (req, res) // make sure you set the correct path to your video file var proc = ffmpeg('http://localhost:3000/images/image.jpg') // loop for 5 seconds .loop(5) // using 25 fps .fps(25) // setup event handlers .on('end', function () console.log('file has been converted succesfully'); ) .on('error', (...)
• 13:37
  FFMPG Concat two video quality issue - Salah Hammouda Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to concat two mp4 video files using ffmpg (with the below command), a main video and a secondary one, the main video always have 1080x1920 resolution and the resulting video should have the some resolution. val concat = "-i $mainVideoPath -i $secondVideoPath -filter_complex [0:v]scale=1080:1920:force_original_aspect_ratio=decrease,setsar=1:1,pad=1080:1920:(ow-iw)/2:(oh-ih)/2[s0];[1:v]scale=1080:1920:force_original_aspect_ratio=decrease,setsar=1:1,pad=1080:1920:(ow-iw)/2:(oh-ih)/2[s1];[s0][s1]concat=n=2:v=1[v] -map [v] $resultVideoPath" The concat work fine but the main part (...)
• 13:15
  Technology Make Video [closed] - Soul Newest 'ffmpeg' Questions - Stack Overflow
  I want to make a video maker like promo.com (Merge multiple video forms, insert text and effects into the video). But don't know which technology or language supports this. I am currently learning ffmpeg, but I find it quite complicated and difficult to use. May people have experience sharing the appropriate technology or language. Thanks.
• 13:14
  Is there a way if a video file has pixelation in FFmpeg? - A Person Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to identify if a video file has pixelation or not, Currently, I have a watch folder where videos are dropped, I have a trigger every 120 seconds that check the folder to see if there are any video files. If there is a file, it uses MediaInfo command-line to extract the encoding of the video and audio. I also use ffprobe on a video to see if it throws out an error like moov atom not found to know if the video is corrupted. However, I want to be able to tell if a video file has a pixelation. I know that I can use str, std, to print out the debug logs. However, I am finding it (...)
• 12:53
  Is there a way to analyse a video to find out its loudness and then correct it to ebu r128 - A Person Newest 'ffmpeg' Questions - Stack Overflow
  I wanted to see if anyone know the best way I can analyse a audio of a video and find out it's loudness. I want to use this information to then correct the audio either through FFmpeg or other means. The audio has to met https://tech.ebu.ch/docs/r/r128.pdf the ebu standard of loudness -23 and not higher than 0.5. is there a way to do this? I am having difficulties finding a solution. -- https://tech.ebu.ch/docs/r/r128.pdf
• 11:44
  how to catch process’s output? [closed] - WQF Newest 'ffmpeg' Questions - Stack Overflow
  I want run this command in Java with ProcessBuilder. ffmpeg -y -i pipe:0 -ac 1 -ar 16k -f s16le -acodec pcm_s16le pipe:1 how should I do? One thread input bytes, and another thread catch output?
• 06:14
  (C++) I need a program source to parse almost all parameters it receives into a new process call [closed] - fss1704 Newest 'ffmpeg' Questions - Stack Overflow
  I have a program that receive some arguments from another program i can't modify, i need to intercept the arguments and remove one argument (-i randomfilename.gif) from the arguments and then call the original renamed executable with the filtered argument, the original argument looks like this "ffmpeg.exe -y -i file1.tmp -i file2.tmp -i randomfilename.gif -c:v copy -g 9999 -c:a copy -threads 4 outputfile.mp4" The gif is a w4t3rmark, that's why i want it gone, a simple argument change can remove this stuff and make the conversion proccess much quicker if it doesn't have to reprocess the (...)
• 14:21
  Error while opening encoder for output stream #1:2 - maybe incorrect parameters such as bit_rate, rate, width or height - geo-freak Newest 'ffmpeg' Questions - Stack Overflow
  I am encoding a video which has dvb_teletext inside. I got an error saying Error while opening encoder for output stream #1:2. I used the following command to encode my video. ffmpeg -threads 8 -i input.ts -s 400x222 -qscale:v 4 -vcodec libx264 -s 320x240 -b:v 512000 -maxrate 512000 -acodec libfaac -b:a 32000 -ar 48000 -force_key_frames expr:gte(t,n_forced*3) -hls_flags single_file -hls_list_size 0 -hls_time 3 -y output.m3u8 You can see the log output of my command. Input #0, mpegts, from 'pipe:': Duration: N/A, start: 91105.257722, bitrate: N/A Program 1 Stream #0:0[0x4b1]: Video: h264 (...)
• 14:17
  How to speed up ffmpeg streaming on android using libvlc? - ALirezaSO Newest 'ffmpeg' Questions - Stack Overflow
  I'm streaming live from my GoPro inside my android app. I use ffmpeg to receive the streaming data from the GoPro and vlc to play it in a surfaceview. I used the code which is provided by KonradIT here. The main command used for the ffmpeg is: -fflags nobuffer -f mpegts -i udp://:8554 -f mpegts udp://127.0.0.1:8555/gopro?pkt_size=64 and the options for vlclib are: options.add("--aout=opensles"); options.add("--audio-time-stretch"); options.add("-vvv"); The output is something worse. It's laggy and its speed is about 17 FPS. And one annoying thing is the streamed picture is very small (...) -- here
• 14:14
  Why my nodejs giving this problem while starting to run rtsp? - Rajaram Newest 'ffmpeg' Questions - Stack Overflow
  While starting the server for the first time just after the code checkout , my react js project is throwing error "events.js:187 throw er; // Unhandled 'error' event" . I have node 13.1.0 and npm 6.12.1. [ '-rtsp_transport', 'tcp', '-i', 'rtsp://user:user123ⓐ192.168.1.100:88/videoSub', '-f', 'mpeg1video', '-b:v', '1000k', '-an', '-r', '24', '-' ] events.js:187 throw er; // Unhandled 'error' event ^ Error: spawn ffmpeg ENOENT at Process.ChildProcess._handle.onexit (internal/child_process.js:264:19) at onErrorNT (internal/child_process.js:456:16) at processTicksAndRejections (...)
• 14:06
  Video play in slow motion while converting webm file to mp4 using ffmpeg - Hardik Kothari Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg-static-electron in electron app for converting webm file to mp4 and that file will be play in mobile app as android and ios. Here I am using ffmpeg command for converting webm file to mp4. await execa(ffmpegPath, [ '-i', inputPath, '-f', 'mp4', '-vcodec','libx264', // video codec '-acodec','aac', // audio codec '-b:v', '6400k', // video bitrate '-b:a', '4800k', // audio bitrate '-strict', 'experimental', // standard '-r', '30000/1001', '-crf', '26', '-g', '16', '-movflags', 'faststart', '-preset', 'veryfast', outputPath, ]) I used '-g' to 16 for solving a dragging (...) -- ffmpeg-static-electron, https://textuploader.com/1o1ml

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 12:37
  Evolution #3821: [sécurité - cookie] possibilité de gérer l'attribut "secure" du cookie spip sess... - Pierre KUHN Revisions : SPIP
  Bonjour, Est ce que c'est prévu de l'intégré dans les prochaines version de SPIP ou pas encore ? Cordialement.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 09:26
  ffmpeg showing null when i am trying using php file - Vishal Mehra Newest 'ffmpeg' Questions - Stack Overflow
  Here is the output ffmpeg path in server rootⓐserver.rkv.igq.mybluehost.me [~]# whereis ffmpeg ffmpeg: /usr/bin/ffmpeg /usr/local/bin/ffmpeg /usr/include/ffmpeg /usr/share/ffm peg /usr/share/man/man1/ffmpeg.1.gz /usr/src/ffmpegscript/ffmpeg When I am trying to run command (ffmpeg -i sample.mp4 sample.avi) using SSH it is working fine but when I am trying using PHP it is not working. Here is my PHP code: include 'usr/local/bin/ffmpeg/'; var_dump(shell_exec('ffmpeg -i sample.mp4 (...)
• 09:10
  How to concat multiple MP4 files using fluent-ffmpeg? - LYMSTAR Newest 'ffmpeg' Questions - Stack Overflow
  I want to build a function to concat mp4 files using Firebase and fluent-ffmpeg. version ・fluent-ffmpeg 2.1.2 ・Firebase 7.6.0 However, an error will occur after startup. The following is the error content. Error: ffmpeg exited with code 1: Output with label '/tmp/public/thumbnail/source0000.jpg.mp4' does not exist in any defined filter graph, or was already used elsewhere. Below is the actual code. const from = concatFilePath.map(function(value) return path.join(os.tmpdir(), value); ); const chainedInputs = from.reduce((result, inputItem) => result.input(inputItem), ffmpeg()); (...)
• 08:58
  ffprobe or avprobe not found. Please install one - Anass El Fakir Newest 'ffmpeg' Questions - Stack Overflow
  i want to add tags to mp3 converted by youtube-dl & ffmpeg : youtube-dl -o '/Output/qpgTC9MDx1o.mp3' qpgTC9MDx1o -f bestaudio --extract-audio --metadata-from-title "%(artist)s - %(title)s" 2>&1 i have this error in output result : [youtube] qpgTC9MDx1o: Downloading webpage [youtube] qpgTC9MDx1o: Extracting video information [youtube] qpgTC9MDx1o: Downloading js player en_US-vfluGO3jj [youtube] qpgTC9MDx1o: Downloading DASH manifest [download] /var/www/vhosts/mp3-y.com/httpdocs/Mp3_Output/quick-mp3.com-JALAL-EL-HAMDAOUI-2007-ARRASSIATES-VOL2-F1P-9CDoxlQ.mp3 has already been (...)
• 08:07
  ffmpeg burn chinese subtitle(srt) with error - Zedd Newest 'ffmpeg' Questions - Stack Overflow
  I use ffmpeg to add Chinese subtitles to the video. and the libass library has been installed. I execute the following command and error messages will appear ffmpeg -i video.mp4 -vf "ass=subtitle.srt" -y out.mp4 error message: And the Chinese subtitles of the output video are unreadable. So the question I want to ask is： What caused this? how to fix? -- ,
• 07:31
  How to check ffmpeg is working in my server on not - Vishal Mehra Newest 'ffmpeg' Questions - Stack Overflow
  I have installed ffmpeg package in my bluehost server. How to check ffmpeg is working in my server on not Here is the output ffmpeg path in server rootⓐserver.rkv.igq.mybluehost.me [~]# whereis ffmpeg ffmpeg: /usr/bin/ffmpeg /usr/local/bin/ffmpeg /usr/include/ffmpeg /usr/share/ffm peg /usr/share/man/man1/ffmpeg.1.gz /usr/src/ffmpegscript/ffmpeg when i am trying to run command (ffmpeg -i sample.mp4 sample.avi) using putty it is working fine but when i am trying using php it is not working here is my php code include 'usr/local/bin/ffmpeg/'; shell_exec('ffmpeg -i sample.mp4 (...)
• 01:52
  Video was encoded with a new width + height along with the old one. Can I re-encode with just the old dimensions using ffmpeg? - Kabir Newest 'ffmpeg' Questions - Stack Overflow
  I've got a video out of OBS that play's normally on my system if I open it with VLC for example, but when I import it into my editor (Adobe Premiere) it gets weirdly cropped down. When inspecting the data for the video it's because for some reason the video gets encoded with a new width and height over top of the old one! Is there a way using ffmpeg to re-encode/transcode the video to a new file with only the original width and height? Bonus question: would there be a way for me to extract the audio channels from my video as separate .mp3s? There are 4 audio channels on the (...) --
• 01:05
  Storing large videos on the Server - civ15 Newest 'ffmpeg' Questions - Stack Overflow
  In my application the client is uploading relatively large videos, average is 500 MB. I have to encode the video in the backend to reduce the size, and I'm trying to use ffmpeg for that. However, ffmpeg needs around 10 minutes for each video, and I should be able to serve the video to the client instantly, or, at least in a few seconds after the upload is finished. What would be the best practice in this context?

13 November

Xiph.org - flac.git/summary http://git.xiph.org/?p=flac.git;a=summary

• 23:10
  cmake_minimum_required() cleanup: - sezero Xiph.org - flac.git/summary
  cmake_minimum_required() cleanup: - document version requirements in the top-level file. - remove incorrect version requirements from sub-dirs. - set min. required version to 3.5 in top-level file. - set minimun required version to 3.9 under docs/ . - make documents building an option (on by default.) so, the tree can be built using cmake-3.5 using -DBUILD_DOCS=0 on the command line. [DH] CMakeLists.txt [DH] doc/CMakeLists.txt [DH] src/CMakeLists.txt [DH] src/libFLAC/CMakeLists.txt [DH] (...)

Revisions : multilang http://zone.spip.org/trac/spip-zone/log/_plugins_/multilang

• 19:06
  Revision 118606: Version 1.4.0. - Nouveauté la plus visible : petite refacto du menu de ... - Charles Razack Revisions : multilang
  Version 1.4.0. - Nouveauté la plus visible : petite refacto du menu de langues → Noms des langues en entier au lieu des codes (fr, en...), liens affichés sous formes de boutons plus grands et centrés pour être bien visibles, ajout d'un label. Petite amélioration pour éviter qu'il y ait un saut lorsque le menu passe en sticky. - Configuration : les formulaires sur lesquels activer le script sont tous regroupés dans une même clé formulaires. - Configuration : ajout d'une option pour ajouter des sélecteurs dans le paramètre root (exemple complètement au hasard : .formulaire_editer_noisette). - Ajout (...) -- Log
• 20:01
  Revision 118608: Oups : fix config + exemple de selecteur avec un espace pour passer ... - Charles Razack Revisions : multilang
  Oups : fix config + exemple de selecteur avec un espace pour passer sur 2 lignes -- Log

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 23:18
  tests/ref/vsynth: add missing reference files, fix build - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  tests/ref/vsynth: add missing reference files, fix build [DH] tests/ref/vsynth/vsynth_lena-dv-fhd [DH] tests/ref/vsynth/vsynth_lena-dv-hd

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 20:03
  Evolution #4301: Permettre de ne pas installer les plugins_dist qui sont en option - Franck D Revisions : SPIP
  Hello :) Oui et non Rasta, de mémoire, les plugins-dist sont des plug "particulier" car ayant un "suivi" plus "grand" de la team. Ils ne sont pas "obligatoire" sauf encore au moins un (même si je suis d'accord pour dire qu'il ne doit pas y avoir beaucoup d'intérêt de ne pas les mettre ...) Mais peu importe en faite :D J'avais fais ce ticket à la suite de celui-là https://core.spip.net/issues/4300 car cela me semblait la suite logique ! Et cela même si je suis d'accord pour dire que pour un utilisateur "classique" installera tous les plugs et c'est même sans doute le plus gros des utilisateurs (...)
• 19:08
  Evolution #4301: Permettre de ne pas installer les plugins_dist qui sont en option - RastaPopoulos ♥ Revisions : SPIP
  Je ne comprends pas le principe : le dossier "dist" pour les plugins signifie explicitement que ce sont les plugins OBLIGATOIRES de CETTE distribution précise (pour l'instant on n'en a qu'une évidemment mais si on en avait 10 ça serait pareil pour chacune). Donc forcément installés dès qu'on lance la machine. Si des plugins doivent pouvoir être désinstallable alors ils doivent être dans plugins/ tout court et seront alors optionnels. Ça ne peut pas être après-coup donc, pour telle distribution précise, tout ce qui est dans plugins-dist ce sont les plugins obligatoires un point c'est tout, c'est le (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 19:46
  How to get ffmpeg to encode once and mux twice, plus options? - ffxsam Newest 'ffmpeg' Questions - Stack Overflow
  I've read up on -f tee, but I can't wrap my head around how to do what I want. I'd like to read in an audio file, encode once, and dump out a single mp3 file as well as mp3 HLS segments. In other words, the separate commands would be: $ cat file.wav | ffmpeg -y -i pipe:0 -c:a libmp3lame -q:a 0 -map 0:0 -f segment -segment_time 10 -segment_list /tmp/segments.m3u8 -segment_format mpegts -vn /tmp/segment_%03d.ts and $ cat file.wav | ffmpeg -y -i pipe:0 -c:a libmp3lame -q:a 1 /tmp/working.mp3 (note the different qscale value in the 2nd command) I can't quite figure out how to apply (...)
• 19:18
  ffmpeg with frei0r libraries fails on os x 10.14.6 - Bernhard Wagner Newest 'ffmpeg' Questions - Stack Overflow
  I'm on Mac OS X 10.14.6 (Mojave), used homebrew to install both ffmpeg and frei0r. If you check the output below, the option --enable-frei0r is there. I verified the path to the frei0r libaries and call ffmpeg like this: FREI0R_PATH=/usr/local/Cellar/frei0r/1.6.1/lib/frei0r-1/ ffmpeg -v debug -i running.mkv -filter:v frei0r=pixeliz0r=0.02:0.02 pixel.mkv however it fails the exact same way as if I hadn't passed the env var FREI0R_PATH: FREI0R_PATH=/usr/local/Cellar/frei0r/1.6.1/lib/frei0r-1/ ffmpeg -y -v debug -i running.mkv -filter:v frei0r=pixeliz0r=0.02:0.02 pixel.mkv ffmpeg version (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 17:50
  Anomalie #4395: Notice - jluc - Revisions : SPIP
  Au fait ya un patch et une PR sur git.spip.net : https://git.spip.net/SPIP/medias/pulls/1

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 17:08
  File created in subprocess.run not found by os.listdir() - Abitbol Newest 'ffmpeg' Questions - Stack Overflow
  I am using subprocess to launch an instance of ffmpeg extracting frames in a folder. Then I do os.listdir on that same folder and it returns an empty list; off course I would except to see the files created by ffmpeg listed. Here is a minimal example import os import subprocess folder = 'generated' subprocess.run(['ffmpeg', '-i', 'input.mp4', '-vf', 'fps=4', f'folder/%05d.png']) print(os.listdir(folder)) # [] I can testify that the files are created while the script is running. In the full example I am using ffmpeg complex filter to generate two output, I don't think that is the source (...)
• 16:44
  Get composition time C++ - Andrea Newest 'ffmpeg' Questions - Stack Overflow
  I made my own rtmp server using libav and ffmpeg. I receive as input either an flv file or an rtmp streaming "containing" an flv file. Since I manipulate the flv file and the relative composition time of each frame, I would like to know if there is a way to get this composition time. I thought that given my AVPacket, I could analyze the raw buffer in order to extract the right information since I know that the flv header is 11 bytes and then in the next 16 bytes I should find the composition time. But it doesn't work. This is a rough example of code: AVPacket pkt; AVFormatContext (...)
• 16:40
  How to modify SPS/PPS aka Codec Private data of a mkv file - Minh Nghĩa Newest 'ffmpeg' Questions - Stack Overflow
  I encode my clip in 5 parts (output is x265 in MKV), using -ss and -t to seek to cut position. Now mkvtoolnix refuses to merge the encoded files, warning that codec private data doesn't match. From this question in mkvtoolnix repo, I learned that the codec private data is encoded in PPS/SPS field of the file. I check the encoding settings from mediainfo, and found that all settings are the same, just one file has a different numa-pool argument. I think my files can still be merged. How can I edit SPS/PPS data to fool mkvmerge into merging my files? (...) -- question

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 16:05
  Révision 118592: Ne pas transmettre le paramètre "objet" aux listes d’objets dont on a trouvé le ... - marcimatⓐrezo.net Revisions : SPIP
  chose, comme dans le plugin albums.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 14:08
  How to speed a ffmpeg streaming on android using libvlc? - ALirezaSO Newest 'ffmpeg' Questions - Stack Overflow
  I'm streaming live from my GoPro inside my android app. I use ffmpeg to receive the streaming data from the GoPro and vlc to play it in a surfaceview. I used the code which is provided by KonradIT here. The main command used for the ffmpeg is: -fflags nobuffer -f mpegts -i udp://:8554 -f mpegts udp://127.0.0.1:8555/gopro?pkt_size=64 and the options for vlclib are: options.add("--aout=opensles"); options.add("--audio-time-stretch"); options.add("-vvv"); The output is something worse. It's laggy and its speed is about 17 FPS. And one annoying thing is the streamed picture is very small (...) -- here
• 15:21
  How can I concatenate two very different mp3 files(diff bitrate, channels, samplerate, bitdeph)? - lukistar Newest 'ffmpeg' Questions - Stack Overflow
  As input I get one mp3 file(input.mp3), then I need to split it into two separate parts(done that) and insert between those parts another mp3(second.mp3). The problem: I tried using every single command for concatenating files, converting them to .ts etc etc. But I always get only the sound of the first mp3 file and the sound of the second is lost. I guess I have to transform my mp3 file into the exact same format as the input.mp3(bitrates, sample rates number of channels) file before I can concatenate it to it. I could concatenate the two parts of the input.mp3, but no matter what I do (...)
• 14:48
  control IP camera using nodejs which has PTZ in it - Nayanika GN Newest 'ffmpeg' Questions - Stack Overflow
  I have created a a project, where I stream the IP camera into my application using nodejs. It works fine. Now I want to implement PTZ in the application. Unsure how to start? Thanks!!
• 14:30
  Python: How to decode a mp3 chunk from webstream to .wav samples? - Bendzko Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to catch chunks of an mp3 webstream and decoding them into wav samples for signal processing. I tried to catch the audio via requests and io.BytesIO to save the data as .wav file. I have to convert the mp3 data to wav data, but I don't know how. (My goal is not to record a .wav file, i am just doing this to test the algorithm.) I found the pymedia lib, but it is very old (last commit in 2006), using python 2.7 and for me not installable. Maybe it is possible with ffmpeg-python, but I have just seen examples using files as input and output. Here's my code: import requests (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 12:59
  avfilter/vf_colorbalance: add support for commands - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_colorbalance: add support for commands [DH] doc/filters.texi [DH] libavfilter/vf_colorbalance.c
• 12:56
  avfilter/vf_colorbalance: switch to floats - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_colorbalance: switch to floats [DH] libavfilter/vf_colorbalance.c
• 12:26
  avfilter/vf_colorbalance: add option to preserve lightness - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_colorbalance: add option to preserve lightness [DH] doc/filters.texi [DH] libavfilter/vf_colorbalance.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 12:34
  Live Stream Video using ffmpeg - Mir Injamamul Newest 'ffmpeg' Questions - Stack Overflow
  I am working with ffmpeg . i converted [something1].h264 file to [something1].m3u8 file. with this command ffmpeg -i /var/www/html/video1.h264 -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -c:v copy -shortest -hls_list_size 0 -segment_list_flags +live /var/www/html/vid/out/video5.m3u8 All i know the event type is VOD (video on demand) . I want make my converted file into live streaming format. So if anybody come to my link he will see from the moment he came , not from the beginning. how to make this live stream from chunk of video , suppose i have 2 video file , i want 2nd (...)
• 11:49
  Try to Pause video during streaming using FFmpeg - Nitya Mishra Newest 'ffmpeg' Questions - Stack Overflow
  Is there any ffmpeg command to pause video during streaming. I tried to pause/resume using Playing keys ('P').Please suggest how can i integrate these key or any command in shell script.
• 11:31
  Python: How to convert a mp3 chunk from webstream to .wav samples? - Bendzko Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to catch chunks of an mp3 webstream and coverting them into wav samples for signal processing. I tried to catch the audio via requests and io.BytesIO to save the data as .wav file. But I think, that I have to convert the mp3 data to wav data, but I don't know how. (My goal is not to record a .wav file, i am just doing this to test the algorithm.) I found the pymedia lib, but it is very old (last commit in 2006), using python 2.7 and for me not installable. Maybe it is possible with ffmpeg-python, but I have just seen examples using files as input and output. Here's my code: (...)
• 10:43
  FFMPEG and AVCONV amix audio files lowers a volume - LiborRiha Newest 'ffmpeg' Questions - Stack Overflow
  I am using this command foreach( $records as $record ) if( $inputs == 0 ) $meta_tags .= "1"; else $meta_tags .= ":0"; $inputs++; $files .= ' -i ' . $path . $record; $meta_tags .= "]"; $shell_command = 'ffmpeg '. $files .' -filter_complex "'. $meta_tags .'amix=inputs='. $inputs .':duration=longest" output.wav'; Everything goes well but when the mix is done, it lowers a volume. Can you please help me? I have tried avconv too.
• 10:41
  Record stream using SDP file & ffmpeg - john Newest 'ffmpeg' Questions - Stack Overflow
  I have a stream created using ffmpeg using the following command: ffmpeg -re -thread_queue_size 4 -i video.mp4 -strict -2 -vcodec copy -an -f rtp rtp://127.0.0.1:51372 -sdp_file test.sdp This creates a .sdp file while streaming the local video file over RTP. The SDP file: v=0 o=- 0 0 IN IP4 127.0.0.1 s=Serenity - HD DVD Trailer c=IN IP4 127.0.0.1 t=0 0 a=tool:libavformat 58.29.100 m=video 51372 RTP/AVP 96 b=AS:4674 a=rtpmap:96 H264/90000 a=fmtp:96 packetization-mode=1; sprop-parameter-sets=Z2QAKaw05QFAFuhAAZdOwExLQCPGDEWA,aO68sA==; profile-level-id=640029 Now I want to use another (...)
• 10:27
  Programmatically read fMP4 using ffmpeg - igal k Newest 'ffmpeg' Questions - Stack Overflow
  All of my attempts to parse fmp4 have failed with the following errors: avcodec_send_packet returned with -10949955291 and printed the following errors: [h264 ⓐ 0x105001600] No start code is found. [h264 ⓐ 0x105001600] Error splitting the input into NAL units. What did i do? Downloaded a perfectly playable h.264 file and fragmented it using the following cmd ffmpeg -i long.mp4 -an -sn -vcodec libx264 -force_key_frames "expr:gte(t,n_forced*4)" -sc_threshold 0 -r 25 -f hls -hls_time 4 -hls_list_size 99999 -start_number 1 -hls_segment_type fmp4 -hls_fmp4_init_filename init.mp4 -t 30 (...)
• 10:00
  Playing a video with JavaCV and FFmpeg - Wamasa Newest 'ffmpeg' Questions - Stack Overflow
  So, I'm developing a custom video player for Android but I need to play more than the android supported video files (mp4, 3gp...), like wmv, avi, flv. At this time I do already convert any video type to .mp4 and I'm able to play them after recoding, but I have no idea how can I play those wmv, avi files without recoding them to mp4 video formats. Is there any way I can play any video on Android without recoding them? JavaCV + FFmpeg library already working, just don't know how to do that. By the way, heres the code that I'm using to recode videos: public static void convert(File file) (...)
• 09:42
  How to convert a mkv file stream-wise if the stream encoding is rawvideo? - Kev1n91 Newest 'ffmpeg' Questions - Stack Overflow
  I am having an mkv file with three streams, two of them are rawvideo. I can easly convert the one encoded in mjpeg using: ffmpeg -i test.mkv -c copy -map 0:0 out.mp4 However, when I want to use it on the other streams with this command: ffmpeg -i test.mkv -c copy -map 0:1 out.mp4 I will get the error [mp4 ⓐ 0000021ea068d200] Could not find tag for codec rawvideo in stream #0, codec not currently supported in container Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument When checking the documentation of FFmpeg (...) -- https://www.ffmpeg.org/ffmpeg-formats.html#rawvideo
• 09:25
  Can't compile C library with C++ code using g++ - shayst Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create a C++ program that embeds FFMPEG functionality. To do that I took one FFMPEG example and recompiled it as is using g++ (only adding extern "C" where needed). Compilation is successful, but linking fails for undefined symbols. cc -I/usr/include/x86_64-linux-gnu -Wall -g -fPIC -c -o bin/decode_video.o decode_video.cpp cc -Wl,--export-dynamic,--no-undefined -L /usr/lib/x86_64-linux-gnu/ -shared -lavdevice -lavutil -lavcodec bin/decode_video.o -o decode_video.so bin/decode_video.o: In function `decode(AVCodecContext*, AVFrame*, AVPacket*, char const*)': (...)
• 08:54
  ffmpeg the start time of frame is incorrect with option: -vf fps=1/5 [duplicate] - Egbert Ke Newest 'ffmpeg' Questions - Stack Overflow
  This question already has an answer here: How to Generate accurate thumbnails with FFMPEG 1 answer i have a 31 second video file(0 second to 30 second, 31 seconds total) named 2.mp4, i want to get one frame every 5 seconds. so i do this: ffmpeg -i 2.mp4 -vf fps=1/5 image-%05d.jpg, then i got 6 frames, i check the time of these frames, found that the time sequence is 2, 7, 12, 17, 22, 27. but what i want is 0, 5, 10, 15, 20, 25, 30. I google it and got nothing, but a offset dict from a blog: process_offset = "1" : 0, "2" : 0, "3" : 1, "4" : 1, "5" : 2, "6" : 2, "7" : 3, "8" : 3, "9" : (...)
• 08:19
  colors messed up (distorted) when making a gif from png files using ffmpeg - wxyz Newest 'ffmpeg' Questions - Stack Overflow
  I have a sequence of png images: image_00.png, image_01.png, image_02.png, etc. I want to convert them to a gif, so I tried the command ffmpeg -i image_%02d.png video.gif Unfortunately, the resulting gif has distorted colors. More specifically, it added a weird sort of yellow haze around some objects in the video. I also tried using the command above with all possible pixel format options (which I determined using the command ffmpeg -h encoder=gif): rgb8, bgr8, rgb4_byte, bgr4_byte, gray, pal8. For example ffmpeg -i image_%02d.png -pix_fmt rgb8 video.gif. Unfortunately, all of the (...)
• 07:22
  How can I stream video in swift using FFmpeg in real time? - rIn Newest 'ffmpeg' Questions - Stack Overflow
  I want to make a real time video streaming app but I'm new to Swift and live streaming.. Video input captured by AVCaptureSession is from iPhone and I want to encode the input from MPEG-4 to MPEG-2. I will use FFmpeg library to encode the video input in swift. Here's my questions. I don't know how to deliver video data to FFmpeg functions. Actually I'm not certain that I have to use FFmpeg library to encode video data from MPEG-4 to MPEG-2 transport stream. Is there any API that can encode video data in Swift by Apple? How can I deal with video data from AVCaptureSession? Are there (...)
• 05:37
  Can't open ffmpeg output with quicktime, pix_fmt flag doesn't fix it - kilojoules Newest 'ffmpeg' Questions - Stack Overflow
  Quicktime can't read the output of ffmpeg when I try making an animation. It uploads to imgur and plays no problem. A previous thread recommended that I add the -pix_fmt yuv420p flag. But, on my system, that does not work. ffmpeg runs without error when I exclude the pix_fmt flag, but I cannot open the output animation in quicktime. Why won't quicktime open the animation? How can I make the animation open with quicktime? $ ffmpeg -y -i animation/tigers_$ii_%05d.png -pix_fmt yuv420p tiger$ii.mp4 ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers built with Apple LLVM (...)
• 02:58
  Extract individual frames from video and pipe them to StandardOutput in FFmpeg - Nicke Manarin Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to extract frames from a video using FFmpeg. But instead of letting FFmpeg write the files to disk, I'm trying to get the frames directly from StandardOutput. I'm not sure if it's feasible. I'm expecting to get each frame individually as they get decoded by reading and waiting until all frames are extracted. With the current code, I think that I'm getting all frames at once. Command ffmpeg -i "C:\\video.mp4" -r 30 -ss 00:00:10.000 -to 00:01:20.000 -hide_banner -c:v png -f image2pipe - Code var start = TimeSpan.FromMilliseconds(SelectionSlider.LowerValue); var end = (...)
• 02:23
  How to save decoded raw rgba frames using ffmpeg? - peetonn Newest 'ffmpeg' Questions - Stack Overflow
  I need to transcode mp4 video to a raw video frames stored in a file. I'm trying this command but it fails with Unable to find a suitable output format for 'test.rgba': ffmpeg -i test.mp4 -vcodec rawvideo -pix_fmt rgba -an test.rgba

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 00:22
  avfilter/vF_colorbalance: rewrite, fixes filtering - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vF_colorbalance: rewrite, fixes filtering [DH] libavfilter/vf_colorbalance.c

12 November

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:56
  Conditionally rotate portrait video if landscape with FFmeg - Jules Newest 'ffmpeg' Questions - Stack Overflow
  I need to convert only portrait videos to landscape, some video maybe landscape already. I need to achieve this with a shell script on a mac. I've previously managed to rotate a video with .. ffmpeg -i "/Users/jm/Library/Mobile Documents/com~apple~QuickTimePlayerX/Documents/output.mp4" -strict 1 -metadata:s:v rotate="90" -codec copy "$3" $3 is the input file in my shell script I've found this ... ffmpeg -i input.m4v 2>&1 | grep rotate From this answer https://stackoverflow.com/a/31683689/450456 I'm not sure how to combine the two, or have to get and use the height and width in (...)
• 20:09
  How can I tell if a video file is corrupted? FFmpeg? - A Person Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to find out if a video file is corrupted or not. I am using FFmpeg to transcode a video file. However, when it gets to a file that not playable and is damaged, it stops running. I want to know if there is a way to output the FFmpeg command into a text file and then be able to tell which file is corrupted from the text file. When I run FFmpeg on one of the corrupted vide, I find this information. built with gcc 9.1.1 (GCC) 20190807 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d (...)
• 20:08
  How would I make my clips cut by PySceneDetect .03 second longer? (PySceneDetect) - barry b. bensen Newest 'ffmpeg' Questions - Stack Overflow
  I am cutting clips from a video apart using FFmpeg and PySceneDetect's detect-content and split-video. It spits out the clips from the video in a folder. Everything is working, but the clips are ending .03 seconds too early (under a second, not exactly .03). I would either like to make them cut .03 seconds later or add .03 seconds onto the clip's length to try to include what would have been cut. (whatever way to get that last bit of the clip where it belongs and not on the front of the next clip). The ending of the clip that is cut off is being added to the next clip in the folder (the (...) -- .py\'s, https://imgur.com/142DsWB
• 20:37
  Is it possible to determine if a subtitle track is imaged based or text based with ffprobe - Shex Newest 'ffmpeg' Questions - Stack Overflow
  I'm writing a script that burns subtitles into video files to prepare them for a personal stream I'm hosting. I'm having a hard time finding which type of subtitle is used in the file. I use ffprobe to get the file infos and I can get stuff like the codec type but I was wondering if there is a way to determine if a subtitle track is image based or text based. I can only think of getting a list of all possible codecs and match the codec type with this list but it would be very usefull to have an info somewhere that can tell me "ok this is an image based subtitle track" as when I burn, I (...)
• 16:48
  Merge Audio Files with different Codecs - Vivek Thummar Newest 'ffmpeg' Questions - Stack Overflow
  i'm working on merging multiple audio merge and i'm using this command (in below command tempTxtFile is file for all audiopath) cmd = "-f concat -safe 0 -i " + tempTxtFile + " -c copy -preset ultrafast " + filepath; well, because i'm using -c copy it only works if selected audios are of codec mp3,but if i will use mp3 and m4a(aac) or both m4a audios,it is preventing me from merge. So, i now i'm using another command which is as follows(for 2 audios): cmd = "-f concat -safe 0 -i " + tempTxtFile + " -filter_complex [0:a][1:a]" + "concat=n=2:v=0:a=1[outa] -map [outa] -c:a mp3 -preset (...)
• 14:52
  FFMPEG Determine average color of an area of a video - Naved Khan Newest 'ffmpeg' Questions - Stack Overflow
  I have a use case where I'd want to insert one of two watermarks - one designed for a dark-ish background, the other for a light background into a video. Let's say that I'd want to do this on the top right corner of the video. How do I determine the average color of the top right section of the video? Post this, how do I determine which watermark to use by looking at the average color? I have a solution right now where I am taking equally spaced screenshots and then measuring the average color, but it's excruciatingly slow, especially for longer videos. # Calculate average color (...)
• 14:20
  FFmpeg: concat multiple videos, some with audio, some without - Tommy Adeniyi Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to concatenate 5 videos where the first and last have no audio track. I have tried the following command: ffmpeg -i 1-copyright/copyright2018640x480.mp4 -i 2-openingtitle/EOTIntroFINAL640x480.mp4 -i 3-videos/yelling.mp4 -i 4-endtitle/EOTOutroFINAL640x480.mp4 -i 5-learnabout/Niambi640.mp4 -filter_complex "[0:v:0] [0:a:0] [1:v:0] [1:a:0] [2:v:0] [2:a:0] [3:v:0] [3:a:0] [4:v:0] [4:a:0] concat=n=5:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" output_video.mp4 and I get the output error: Stream specifier ':a:0' in filtergraph description [0:v:0] [0:a:0] [1:v:0] [1:a:0] [2:v:0] [2:a:0] (...)
• 08:41
  h264_cuvid codec not found - Ruben Cabrera Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to encode, apply a filter and decode a video through GPU. Im using H264_nvenc for encoding it, and trying to use h246_cuvid for the decoding, but FFMPEG can't find the decoder. Here is where the problem is decodingCodec = avcodec_find_encoder_by_name("h264_cuvid"); if (!decodingCodec) av_log(NULL, AV_LOG_ERROR, "Codec not found DEC.\\n"); return; OS win 10 x64 EDIT: I'm actually using Zeranoe FFmpeg with the following config --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray (...)
• 06:27
  Mac El Capitan can't open ffmpeg output with quicktime - kilojoules Newest 'ffmpeg' Questions - Stack Overflow
  Quicktime can't read the output of ffmpeg when I try making an animation. It uploads to imgur and plays no problem. A previous thread recommended that I add the -pix_fmt yuv420p flag. But, on my system, that does not work. ffmpeg runs without error when I exclude the pix_fmt flag, but I cannot open the output animation in quicktime. Why won't quicktime open the animation? How can I make the animation open with quicktime? $ ffmpeg -y -i animation/tigers_$ii_%05d.png -pix_fmt yuv420p tiger$ii.mp4 ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers built with Apple LLVM (...)

11 November

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 15:15
  librav1e: Don't make users explicitly set -qp -1 to use bit rate mode - Derek Buitenhuis git.videolan.org Git - ffmpeg.git/rss log
  librav1e: Don't make users explicitly set -qp -1 to use bit rate mode Signed-off-by: Derek Buitenhuis <derek.buitenhuisⓐgmail.com> [DH] libavcodec/librav1e.c
• 01:20
  avformat: add an AV1 Annex B demuxer - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat: add an AV1 Annex B demuxer Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] Changelog [DH] configure [DH] libavformat/Makefile [DH] libavformat/allformats.c [DH] libavformat/av1dec.c [DH] libavformat/version.h
• 01:10
  avcodec/libdav1d: export bitstream timing info when available - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libdav1d: export bitstream timing info when available Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/libdav1d.c
• 01:09
  avcodec/av1_parser: export bitstream timing info when available - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/av1_parser: export bitstream timing info when available Based on h264_parser code. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/av1_parser.c
• 01:09
  avcodec: add an AV1 frame merge bitstream filter - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec: add an AV1 frame merge bitstream filter This BSF takes Temporal Units split across different AVPackets and merges them by looking for Temporal Delimiter OBUs. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] Changelog [DH] configure [DH] libavcodec/Makefile [DH] libavcodec/av1_frame_merge_bsf.c [DH] libavcodec/bitstream_filters.c [DH] libavcodec/version.h
• 01:08
  avcodec/cbs_av1: support one byte long OBUs when the size is not set in the bitstream - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/cbs_av1: support one byte long OBUs when the size is not set in the bitstream This will be needed by the next commit, where packets with a single Temporal Delimiter OBU with no size will need to be parsed Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/cbs_av1.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:23
  Whatsapp FFMPEG thumbnail is not showing - Youssof H. Newest 'ffmpeg' Questions - Stack Overflow
  I want to run a command that will add an image as a thumbnail to a video. The video will be shared by WhatsApp with a thumbnail showing up. The problem is that after running the following command thumbnails don't show up in Whatsapp though it shows on Windows 10. ffmpeg -i path/to/Video.mp4 -i path/to/Video.png -map 0 -map 1 -c copy -c:v:1 png -disposition:v:1 attached_pic -strict -2 path/to/out.mp4 And another problem is that the video with a thumbnail doesn't play on Android, iPhone, Windows, nor on Linux. Log: ffmpeg version 4.1.4-1+rpt1~deb10u1 2000-2019 the FFmpeg developers built (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 02:05
  avformat/mp3dec: replace SAME_HEADER_MASK with MP3_MASK - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avformat/mp3dec: replace SAME_HEADER_MASK with MP3_MASK mp3 header bitstream syntax: header() syncword 12bits bslsf id 1bit bslsf layer 2bit bslsf protection_bit 1bit bslsf bitrate_index 4bits bslsf sampling_frequency 2bits bslsf padding_bit 1bit bslsf private_bit 1bit bslsf mode 2bits bslsf mode_extension 2bits bslsf copyright 1bit bslsf original/home 1bit bslsf emphasis 2bits bslsf if the header is masking with MP3_MASK(0xFFFE0CCF), below fields will be cleared: protection_bit, bitrate_index, sampling_freqency, mode with SAME_HEADER_MASK(0xFFFE0C00), extra below fields will be cleared (...)
• 02:05
  avformat/mp3dec: cosmetics - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avformat/mp3dec: cosmetics Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/mp3dec.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:46
  Concatenating audio files in ffmpeg two background one foreground - jcvamp Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create a single audio file with Sound1.mp3 and Sound2.mp3 concatenated to make a single background track, and Sound3.wav played over the top in a separate track. I tried this code, but got the error 'Cannot find a matching stream for unlabeled input pad 3 on filter Parsed_concat_0'. ffmpeg.exe -t 1 -i Sound1.mp3 -t 1 -i Sound2.mp3 -t 0.5 -i Sound3.wav -filter_complex "[0:0][1:0][2:0]concat=n=3:v=0:a=2[out]" -map "[out]" output.mp3 -report
• 19:49
  FFmpeg encode packet duration always zero - Rich Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to learn to use the libav libraries from FFmpeg. I'm using the beamcoder wrapper for Node. I have a program that decodes an MP4 file and then tries to encode it to h264. The resulting packets from the encode step always have their duration set to zero. Any ideas why that would be? const beamcoder = require('beamcoder'); async function run() const dm = await beamcoder.demuxer('file:Video_001.mp4'); let videoStream = null; for (const stream of dm.streams) const codecpar = stream.codecpar; if (codecpar.codec_type === 'video') videoStream = stream; const videoDecoder = (...)
• 21:38
  How to convert audios without installing ffmpeg - Mohammad Hoodaji Newest 'ffmpeg' Questions - Stack Overflow
  I'm using a shared hosting. I need convert mp3 files to ogg files on my host, I asked its admins to install FFMpeg but they didn't do that! Is it possible convert mp3 to ogg/ogg to mp3 on my host by php? If yes please get me code examples or something!
• 20:55
  FFMPEG image to video with kenburns effect - Buu Newest 'ffmpeg' Questions - Stack Overflow
  I am new to FFMPEG and I kinda confused with their commands and options. So I googled some existing commands and found this: ffmpeg -y -loop 1 -i bgimage.png -ss 0 -t 5 -r 1 -loop 1 -i front.png -ss 0 -t 5 -filter_complex " [1:v] scale=w=1920:h=1080 [fg]; [0:v] scale=w=-2:h=3*1080 , crop=w=3*1920/1.2:h=3*1080/1.2:y=t*(in_h-out_h)/5, scale=w=1920:h=1080, setsar =1 [bg] ; [bg][fg]overlay=shortest=1[v] " -map "[v]" -c:v h264 -crf 18 -preset v eryfast pan_up.mp4 The only problem is effects becomes sluggish. I am trying to convert image to video with kenburns effects. Can you guys help me (...) -- https://trello-attachments.s3.amazonaws.com/545a93cff0b222f456c5ad82/5d8cfc0d75e80e63dae2fe6a/5a523ed328f24b0454c5c56cd0ee68e6/23442279.mp4
• 20:48
  How To Resize a Video Clip in Python - Seyed Ali Akhavani Newest 'ffmpeg' Questions - Stack Overflow
  I want to resize a video clip in python 2.7. For example we give "movie.mp4" with 1080p quality The result should be "movie.mp4" with 360p quality I Think that there should be solutions with Moviepy. If you know a solution with it. I would be grateful if you answer me.
• 19:36
  How can I extract audio from video with ffmpeg? - user1269669 Newest 'ffmpeg' Questions - Stack Overflow
  I tried the following command to extract audio from video: ffmpeg -i Sample.avi -vn -ar 44100 -ac 2 -ab 192k -f mp3 Sample.mp3 but I get the following output libavutil 50.15. 1 / 50.15. 1 libavcodec 52.72. 2 / 52.72. 2 libavformat 52.64. 2 / 52.64. 2 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter 1.19. 0 / 1.19. 0 libswscale 0.11. 0 / 0.11. 0 libpostproc 51. 2. 0 / 51. 2. 0 SamplE.avi: Invalid data found when processing input Can anyone help, please?
• 19:27
  ffmpeg - generating thumbs results in different aspect ratio - w-- Newest 'ffmpeg' Questions - Stack Overflow
  My ffmpeg command looks like ffmpeg -i "/tmp/assets/input.mov" -y -ss 00:00:05 -vf fps=1/5,scale=300:-1 /tmp/output/thumbs/thumb%03d.jpg input.mov has a display resolution of 16:9 even though the source resolution looks to be 1440x1080. i.e. the video plays in a player at 16:9 (not really sure how this happens) the generated thumbs in this case are 300x225 (4:3) and look distorted. How can i have it generate the thumb according to the display aspect ratio? I was hoping for 300x169 (...)

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

• 13:43
  Revision 118512: fonction saisies_lister_finales() qui permet de lister, par ordre de ... - maieulⓐ… Revisions : saisies
  fonction saisies_lister_finales() qui permet de lister, par ordre de définition, toutes les saisies n'ayant pas de sous saisies, et cela récursivement -- Log

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 14:01
  Nodejs ffmpeg not outputting to stdout - curiousMind Newest 'ffmpeg' Questions - Stack Overflow
  The Goal: convert a webm/audio stream to a wav stream. The Browser continuously sends the webm/audio stream to backend via websocket where it should be converted to a wav encoded stream for further processing) I am spawning the child-process like this: const ffmpeg = spawn('ffmpeg', [ '-i', '-', '-ac', 1, '-f', 'wav', 'pipe:1' ]); The input is from a stream, thats why I use -i, - for letting ffmpeg know it recieves a stream via stdin someStream.pipe(ffmpeg.stdin) But if I listen on the output from ffmpeg I dont receive anything: ffmpeg.stdout.on('data', (chunk) => (...)
• 12:18
  ffmpeg: drawtext fade in/out with zmq - jb_alvarado Newest 'ffmpeg' Questions - Stack Overflow
  There are several ways to fade in and out text in ffmpeg. But I only found solutions where the actual time is known. But what can I do, when I don't know the current running time and I would like to fade in and out a text? Let's say I have an endless stream and I want to fade in a text with zmqsend. And the fade should start immediately. For that my understanding is, that I need to store some time information in a variable and calculate with that. But storing variables is not possible in ffmpeg expressions - right? For testing purposes here are a playing instance: ffplay -dumpgraph 1 (...)
• 09:38
  Do ffmpeg create thumbnail download all of file via URL nodejs? - Nam Nguyễn Newest 'ffmpeg' Questions - Stack Overflow
  I am creating a thumbnail from video URL by ffmpeg. This is my code: function createThumbnail(videoURL, keyFileThumb) return new Promise((resolve, reject) => let tmpFile = createWriteStream(`./$keyFileThumb`) const ffmpeg = spawn(ffmpegPath, [ '-ss', '00:00:01.000', '-i', videoURL, '-frames:v', '1', '-f', 'image2', '-c:v', 'mjpeg', 'pipe:1' ]) ffmpeg.stdout.pipe(tmpFile) ffmpeg.on('close', function (code) tmpFile.end() resolve(code) ) ffmpeg.on('error', function (err) console.log(err) reject(err) ) ) I just want to create thumbnail from stream video URL then disconnect. I do not (...)
• 09:36
  Shifting overlay position every x seconds - David Tran Newest 'ffmpeg' Questions - Stack Overflow
  Currently, I add a watermark to the bottom right of my video to prevent others from republishing it. However, they blur the watermark so I'm thinking of adding a moving watermark that changes its position every x seconds. Below is my current ffmpeg command: ffmpeg -i input.mp4 -i logo.png -filter_complex "[1][0]scale2ref=iw/4:ow*90/272[wm][vid];[vid][wm]overlay=W-w-W*10/100:H-h-H*5/100" -preset veryfast output.mp4 How can I make the watermark position from the bottom right to top right, to top left, and bottom left every 30 seconds? Thank (...)
• 07:04
  Building for macOS, but linking in object file built for free standing - Robert Salesas Newest 'ffmpeg' Questions - Stack Overflow
  I am building ffmpeg and I get the following error for several files. I am not specifically building with the free standing flag, so cannot see why this is happening. What does it actually mean? Is there a problem with it, or is it an ignorable warning? If there's a problem, does anyone have any idea how to fix it? Building for macOS, but linking in object file (~/Git/FFmpeg/FFmpegXcode/lib/libavutil.a(imgutils.o)) built for free standing

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 02:15
  avcodec/librav1e: free the RaPacket after using it - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/librav1e: free the RaPacket after using it Fixes leaks. Reviewed-by: Derek Buitenhuis <derek.buitenhuisⓐgmail.com> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/librav1e.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 02:58
  Run python ffmpeg audio convertion code file from subprocess.call() within a flask server - Kasun Newest 'ffmpeg' Questions - Stack Overflow
  I have build a small flask server to handle the request. I have 3 parameters in the api function that i want to get. those are type, user_id, audio_file, One is a file. Since it's used for the audio file conversion. I have to get a file.. I have tested with this in Postman audio file get saved but the subprocess.call(command) in the api function doesn't work.. this is the flask server code ⓐapp.route('/voice', methods=['GET','POST']) def process_audio(): try: if request.method == 'POST': input_type = request.form['type'] user_id = request.form['user_id'] static_file = (...)

10 November

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 00:08
  avcodec/encode: add missing assert to avcodec_receive_packet() - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/encode: add missing assert to avcodec_receive_packet() Encoders must return reference counted packets. This was checked only for encoders using the AVCodec->encode2() API, while blindly accepting whatever encoders using the AVCodec->receive_packet() API were returning. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/encode.c
• 19:04
  avformat/id3v2: Avoid av_strdup for key and value of dict - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/id3v2: Avoid av_strdup for key and value of dict Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/id3v2.c
• 00:54
  avcodec/dvenc: support encoding dvcprohd - Baptiste Coudurier git.videolan.org Git - ffmpeg.git/rss log
  avcodec/dvenc: support encoding dvcprohd [DH] libavcodec/dv.h [DH] libavcodec/dvenc.c [DH] tests/fate/vcodec.mak [DH] tests/ref/vsynth/vsynth1-dv-fhd [DH] tests/ref/vsynth/vsynth1-dv-hd [DH] tests/ref/vsynth/vsynth2-dv-fhd [DH] tests/ref/vsynth/vsynth2-dv-hd [DH] tests/ref/vsynth/vsynth3-dv-fhd [DH] tests/ref/vsynth/vsynth3-dv-hd
• 02:47
  avcodec/dvdec: Don't use restrict directly to fix build on MSVC - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/dvdec: Don't use restrict directly to fix build on MSVC 004ebd4b added a function with a parameter that was declared as restrict and not av_restrict. This is not supported by MSVC as several FATE-boxes that now fail to build show. So use av_restrict. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Tested-by: Matthias Troffaes <matthias.troffaesⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] (...)

Xiph.org - flac.git/summary http://git.xiph.org/?p=flac.git;a=summary

• 23:12
  flac/main.c: replace an snprintf() call with flac_snprintf() - sezero Xiph.org - flac.git/summary
  flac/main.c: replace an snprintf() call with flac_snprintf() flac_snprintf() is used everywhere else in there. that single instance of plain snprintf() was added in commit 04974d27. fixes flac.exe build with older msvc versions. [DH] src/flac/main.c
• 20:42
  libFLAC/bitreader.c: Fix shift invoking undefined behaviour - Erik de Castro Lopo Xiph.org - flac.git/summary
  libFLAC/bitreader.c: Fix shift invoking undefined behaviour Credit: Oss-Fuzz Issue: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18589 Testcase: fuzzer_decoder-5668806471188480 [DH] src/libFLAC/bitreader.c
• 20:40
  test_streams: Fix UBSAN error in random generator - Erik de Castro Lopo Xiph.org - flac.git/summary
  test_streams: Fix UBSAN error in random generator [DH] src/test_streams/main.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:47
  Build FFMPEG Library for Android - Gunaseelan Newest 'ffmpeg' Questions - Stack Overflow
  I have downloaded FFMPEG 4.2.1, but I don't know how to use it on Android project, Some threads said, you have to build .so files, but don't use Windows/CYGWIN, Some threads said directly extracts ffmpeg source into android project, and build with NDK, I can't get any threads as much as clear, It would be helpful if somebody redirects me on right path, I want to build my own, because existing libraries seems using old FFMPEG version, and also leads me huge app (...) -- FFMPEG 4.2.1
• 20:49
  record Linux Wayland/DRM screen using ffmpeg's kmsgrab device with superimposed webcam - nrdxp Newest 'ffmpeg' Questions - Stack Overflow
  Setup is Linux, ffmpeg using kabylake iGPU. I am capturing a running sway instance using the kmsgrab device, which requires the use of a hardware backend to coherently process the image on my hardware. Only VA API fits this bill. I want to overlay the webcam in the bottom right corner during encoding. However, attempts at manipulating the filter graph to accomplish this have been unsuccessful. This is ultimately for Twitch/Tube stream. Right now, I am actually capturing the webcam to an sdl window, and simply recording the screen using separate instances of ffmpeg. This doesn't actually (...) -- sway, kmsgrab
• 18:54
  How can I use both vaapi acceleration and video overlays with ffmpeg - nrdxp Newest 'ffmpeg' Questions - Stack Overflow
  I am fairly new to ffmpeg and I am trying to capture both my webcam and my screen, all using vaapi acceleration (without it, its too slow). I want to overlay the webcam in the bottom right corner using ffmpeg. I need to use kmsgrab, so I can record a Wayland session on Linux. What I am doing to work around this is simply open the webcam in a window using the sdl backend, and then call another instance off ffmpeg to record the screen. This isn't ideal however, since the window with the webcam gets covered up by other windows on fullscreen or when workspace switching. I would much rather (...)
• 13:29
  Merge various Video and audio files with similar names - alou S Newest 'ffmpeg' Questions - Stack Overflow
  So I have downloaded various audio and video files separately from Youtube. Now I want a .bat script to merge them all using ffmpeg. All of the are in the same folder. https://i.stack.imgur.com/2g4Li.png And the output may be in another other created subfolder. If possible also provide a brief explanation of the script. (I don't know much batch scripting but very familiar with C++ and Python) -- https://i.stack.imgur.com/2g4Li.png
• 11:48
  Animated watermark moving on the edges of the movie - ffmpeg - saeid ezzati Newest 'ffmpeg' Questions - Stack Overflow
  I wanna overlay a picture on a video, as a watermark. How do I insert an animated watermark that randomly moves from side to side. For example, A watermark, placed on top/ upper-left corner, moves randomly to the top/upper-right corner and freezes there for five seconds before moving down to the lower- right corner. I don't want the watermark to have a cross movement and move from the upper-right corner to the lower-left corner. Here is an example of my code, using which the watermark randomly jumps to a corner each 200 frames without animate: ffmpeg -i "source.mp4" -i "watermark.png" (...)
• 10:57
  decrypt AES-128 encrypted .m3u8 playlist and .TS files with ffmpeg - Mohammad Olfatmiri Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to decrypt a .m3u8 playlist, I followed these steps : create a directory copy the key to a key file, ie my.key, and place it in the dir. Note that keys can be rotated, if the playlist has multiple keys copy all of them to different files. copy all .ts segments to the same dir copy and edit the playlist.m3u8 and use just the filename(s) for the key(s) URI(s) and segments. and using this command to decrypt the playlist ffmpeg -i playlist.m3u8 -c copy output.ts but I got this error : Invalid data found when processing input here is my m3u8 : #EXTM3U #EXT-X-TARGETDURATION:12 (...)
• 10:03
  Looking to play back non-encoded video upload then export gif from selection point via FFMPEG - Christopher Neil Newest 'ffmpeg' Questions - Stack Overflow
  We've been trying to crack this code all week, reaching out to everyone to see if you have any solutions? We want the user to upload a video and in the next step he will select a small 5 second loop of the video which will be made as a gif. Old developer was able to do this by splicing the video at 10 seconds instead of 5 but not re-encoding it meant that it would sometimes be beyond 12 seconds and in some cases less than 7. We changed the code to force keyframes with re encoding so that it splices the video at exactly 5 seconds to show the loop. These slices are shown to the user using (...)
• 07:23
  ffmpeg video length is 0 when concatenating pictures - iftach freund Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to concatenate individual frames, but the video length is 0 and all frames seemingly play at once. Iv'e tried increasing the video length in ffmpeg and changing the frame rate. os.system('ffmpeg -f concat -i List_tb.txt -c copy output.mp4') os.system("ffmpeg -i output.mp4 -filter:v fps=fps=120 output_temp.mp4") os.system("ffmpeg -i output_temp.mp4 -filter:v setpts=8.0*PTS final.mp4") also the frame rate is the amount of frames
• 04:06
  FFMPEG - Not finding codec parameters - Tanner Smith Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert a sequence of images into a mpeg movie via FFMPEG, although I keep getting an error saying that it could not find the code parameters (Video: mjpeg). A Google search did not bring much up that was useful. ffmpeg -f image2 -i /tmp/img%03d.jpg video.mpgFFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --extra-version=4:0.5.1-1ubuntu1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis (...)
• 03:48
  Convert ts m3u8 to png FFMPEG - Kerbin Lozada Newest 'ffmpeg' Questions - Stack Overflow
  I recently saw a movie website that used m3u8 but the video files instead of being .ts are .png and when I download a file it is an image instead of a video with ffmpeg I extracted the information from the file and this it was what came out video url : VIDEO EN PNG "streams": [ "index": 0, "codec_name": "png", "codec_long_name": "PNG (Portable Network Graphics) image", "codec_type": "video", "codec_time_base": "0/1", "codec_tag_string": " [0][0][0]", "codec_tag": "0x0000", "width": 1, "height": 1, "coded_width": 1, "coded_height": 1, "has_b_frames": 0, "sample_aspect_ratio": "1:1", (...) -- VIDEO EN PNG
• 03:33
  ffmpeg -to flag not always correctly recognized when processing the same file and different time ranges - Sebastian Newest 'ffmpeg' Questions - Stack Overflow
  I have a file that I wanted to cut into few pieces. The problem is my command not always works: ffmpeg -ss 00:00:05 -i 4.DeepPurpleJag_robocze.mp4 -to 01:00:21 -c:v copy -c:a copy testing.mp4 produces properly cut video with the output: ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers built with Apple clang version 11.0.0 (clang-1100.0.33.8) configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.1_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.jdk/Contents/Home/include (...)

9 November

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:11
  Speeding up/slowing down video ffmpeg - BahaaIddin Al Sharqawi Newest 'ffmpeg' Questions - Stack Overflow
  I want to change video speed using ffmpeg framework. I used this command for that: ffmpeg -y -i /storage/extSdCard/Video/1.avi -filter_complex [0:v]fps=50.0, setpts=0.5*PTS[v];[0:a]atempo=2.0[a] -map [v] -map [a] -preset ultrafast /storage/emulated/0/VID-20170716-VidRotate1.mp4 How can I guess the duration of the resulting video after slowing down or speeding up video? This is my whole log in console: ffmpeg -y -i /storage/extSdCard/Video/1.avi -filter_complex [0:v]fps=50.0, setpts=0.5*PTS[v];[0:a]atempo=2.0[a] -map [v] -map [a] -preset ultrafast (...)

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

• 19:01
  Revision 118486: Certains plugins comme Titres-typographiques et Ortho-typographie ... - gildas.cotomaleⓐ… Revisions : saisies
  Certains plugins comme Titres-typographiques et Ortho-typographie agissent sur les titres pour notre bonheur. Il faut donc les filtrer pour avoir une liste utilisable. -- Log

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 17:03
  Command works on terminal but not with Kotlin - Antony Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to use an FFMPEG command for concatenating different videos. The command is ffmpeg -i video.mp4 -i video-2.mp4 -filter_complex "[0:v:0] [0:a:0] [1:v:0] [1:a:0] concat=n=2:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" output.mp4 This command works good when I run on Windows PowerShell. But when I try to run with Kotlin code it doesn't work. val firstVideo = "D:\\\\Videos\\\\ffmpeg\\\\video.mp4" val secondVideo = "D:\\\\Videos\\\\ffmpeg\\\\video-2.mp4" val resultPath = "D:\\\\Videos\\\\ffmpeg\\\\result-2.mp4" val cmd = "ffmpeg -i $firstVideo -i $secondVideo -filter_complex \\"[0:v:0] [0:a:0] [1:v:0] (...)
• 14:30
  Why the output of the ffmpeg-python doesn't match the image shape? - Swi Jason Newest 'ffmpeg' Questions - Stack Overflow
  I used the ffmpeg-python module to convert video to images. Specifically, I used the code provided by the official git repo of ffmpeg-python, as below out, _ = ( ffmpeg .input(in_filename) .filter('select', 'gte(n,)'.format(frame_num)) .output('pipe:', vframes=1, format='image2', vcodec='mjpeg') .run(capture_stdout=True) ) im = np.frombuffer(out, 'uint8') print(im.shape[0]/3/1080) # 924.907098765432 The original video is of size (1920, 1080) and pix_fmt 'yuv420p', but the outputs of the above code is not 1920. I have figured out by myself that the output of ffmpeg.run() is not a decoded (...)
• 09:42
  ffmpeg concat video length is not the sum of durations - Mason Newest 'ffmpeg' Questions - Stack Overflow
  I'm simply trying to put some images together into a video with specific durations. I'm using the command ffmpeg -f concat -i concat.txt -r 30 video.mp4 # concat.txt file capture12.png duration 1 file capture57.png duration 3 file capture156.png duration 7 file capture234.png duration 5 file capture272.png duration 3 The output of my console is ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.1.1 (GCC) 20190807 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d (...)
• 07:45
  Convert videos from .264 to .265 (HEVC) with ffmpeg - John Terragnoli Newest 'ffmpeg' Questions - Stack Overflow
  I see that there are a few questions on this subject but I am still getting errors. All I want to do is convert videos in my library to HEVC so they take up less space. I've tried this: ffmpeg -i input.mp4 -c:v libx265 output.mp4 ffmpeg seems to take a long time and the output seems to be about the right size. The video will play with VLC but the icon is weird and when I try to open it with QuickTime, I get the error: 'The document “output.mov” could not be opened. The file isn’t compatible with QuickTime Player.' I don't want to change any of the fancy settings. I just want the files to (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 05:40
  Révision 118480: [Salvatore] [source:_core_/plugins/statistiques/lang/ statistiques] Export depui... - hanjo.spipⓐgmail.com Revisions : SPIP

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 03:27
  avformat/mlvdec:drop unnecessary check before ff_format_io_close - Steven Liu git.videolan.org Git - ffmpeg.git/rss log
  avformat/mlvdec:drop unnecessary check before ff_format_io_close Reviewed-by: Linjie Fu <linjie.fuⓐintel.com> Reviewed-by: Jun Zhao <barryjzhaoⓐtencent.com> Signed-off-by: Steven Liu <lqⓐchinaffmpeg.org> [DH] libavformat/mlvdec.c
• 02:48
  avcodec/libvpxenc,cosmetics: fix a typo - James Zern git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libvpxenc,cosmetics: fix a typo predicition -> prediction [DH] libavcodec/libvpxenc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 00:28
  Restreaming another nginx rtmp stream - Amar Kalabić Newest 'ffmpeg' Questions - Stack Overflow
  First of all, I'll explain what I want to achieve, because there might be even better way to achieve this. I am looking at making 2 streams work, one is pushing to twitch.tv and youtube with delay and other one is live (without delay) that can be watched using VLC or whatever. I am able to achieve this partially, but "live" stream just breaks sometimes randomly with this error: Failed to update header with correct duration. Failed to update header with correct filesize. Before, I had "Could not find codec parameters" error, but I solved it by adding this to my ffmpeg command: (...) -- https://github.com/sistason/rtmp_stream_delayer

8 November

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:41
  I need to search some directory looking for DAV files and if there is trigger a task - audicom Newest 'ffmpeg' Questions - Stack Overflow
  I need to run a script recursively in the directory and trigger some functions if DAV files exist. However, the code does not work correctly. I need the process of executing task 01 if it does not exist in the DAV file, and perform the task 02 execution case in the DAV file. code: link for download file test: https://www.dropbox.com/sh/78w681qb4r29t6q/AABd7H73uFsl1JDGtIPEnVQHa?dl=0 cd E:\\TESTE\\1002 :LOOP01 For /R %%G in (*.Dav) do IF NOT EXIST "%%G" GOTO SKIP01 :LOOP02 For /R %%G in (*.Dav) do IF EXIST "%%G" GOTO SKIP02 : :SKIP01 PING 1.1.1.1 -n 10 -w 600 >NUL GOTO LOOP01 : (...) -- https://www.dropbox.com/sh/78w681qb4r29t6q/AABd7H73uFsl1JDGtIPEnVQHa?dl=0
• 22:01
  Call system package with Go on App Engine Standard - reidreid46 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to use FFmpeg in a Go application thats running on Google App Engine Standard. I can get this to run locally, when I point to a local instance of the FFmpeg binary using exec.Command() cmd := exec.Command( "/Users/justin/Desktop/conversion/ffmpeg", // this won't work on a remote server "-i", "pipe:0", "-ac", "1", "-codec:a", "libmp3lame", "-b:a", "48k", "-ar", "24000", "-f", "mp3", "pipe:1", ) cmd.Stdin = bytes.NewReader(synthResp.AudioContent) var output bytes.Buffer cmd.Stdout = &output err = cmd.Run() Obviously, this won't work when I deploy the application, so I need a (...) -- FFmpeg, Go, Google App Engine Standard, system package
• 20:57
  How to add outro background music to another audio file with FFMpeg? - Sebastian Newest 'ffmpeg' Questions - Stack Overflow
  I have two files: story.wav (180 seconds) and background-music.wav (90 seconds). I need a FFMpeg command that merges the two files and fades in background-music.wav (with esin) 30 seconds before the end of story.wav. I have this in separate commands: ffmpeg -i background-music.wav -filter_complex afade=t=in:curve=esin:ss=0:d=30 fadein.wav ffmpeg -i fadein.wav -af "adelay=150000|150000" delayed.wav ffmpeg -i delayed.wav -i story.wav -filter_complex amix=inputs=2:duration=longest final.wav This is ugly - and it has the problem, that the volume of the first part is only 50% (the volume (...)
• 19:31
  Implement Adobe Photoshop's "Levels" feature using ffmpeg - user6434902 Newest 'ffmpeg' Questions - Stack Overflow
  In Adobe photoshop, I used the "Levels" feature to adjust Shadows, Midtones and Highlights of an image. I need an elegant solution using ffmpeg to implement the same effect. A ffmpeg implementation will help me perform the operation programmatically. I've tried using the colorbalance filter available on ffmpeg. ffplay -i input -vf colorbalance=rs=-0.75:gs=-0.75:bs=-0.75:rm=-0.875:gm=-0.875:bm=-0.875:rh=-1:gh=-1:bh=-1 In photoshop I'm able to achieve the expected results with the following settings, Shadows - 199 Midtones - midpoint Highlights - (...)
• 19:06
  Why do I catch the "AccessViolationException" exception in av_hwframe_transfer_data () when I run it as a windows service? - vakym Newest 'ffmpeg' Questions - Stack Overflow
  I write Windows service witch decodig video stream from camera. I write it on c# with FFMPEG.Autogen wrapper. My problem is "AccessViolationException" when i run it as service. If i run application as Console Application i have no exceptions. In Stacktrace i see this: в FFmpeg.AutoGen.ffmpeg+c.b__5_572(FFmpeg.AutoGen.AVFrame*, FFmpeg.AutoGen.AVFrame*, Int32) в FFmpeg.AutoGen.ffmpeg.av_hwframe_transfer_data(FFmpeg.AutoGen.AVFrame*, FFmpeg.AutoGen.AVFrame*,Int32) в VideoProviderService.VideoSources.RTSPVideoSource.TryDecodeNextFrame(Boolean ByRef) Code of TryDecodeNextFrame method: public (...)
• 18:26
  FFmpeg - avcodec_receive_frame returns AVERROR(EAGAIN) - Jinx Newest 'ffmpeg' Questions - Stack Overflow
  I'm using an QOpenGL widget to draw frames. However, I'm struggling to get frames by using avcodec_receive_frame. It ended within the block else if (ret == AVERROR(EAGAIN)) and returned -11. I have no idea what made this happen. Also I checked that codecs were fine, so I guess the problem wasn't caused by codecs. MyDemux.cpp AVPacket* MyDemux::allocatePacket() AVPacket* packet = av_packet_alloc(); return packet; AVFrame* MyDemux::allocateFrame() AVFrame* frame = av_frame_alloc(); return frame; int MyDemux::readFrame(AVPacket* packet) mux.lock(); if (!formatCtx) std::cout (...)
• 17:39
  FFmpeg libary in WPF - MikeTMG Newest 'ffmpeg' Questions - Stack Overflow
  I am building a softwere that can decode and encode using Wpf and c#, and I want to do that using, FFmpeg libary. I saw the ffmpeg autogen warpper but I couldn't find any documantion for its function. Can someone please find me one? Or better, give me better warrper. I already tried FFMpegCore, its working but very slow. For Exaple it takes 20 seconds to decode a specific frame.(And i have monstruos computer) If will be happy if ou could give me better warpper, or a guide for ffmpeg.autogen. Thanks in (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 08:51
  avfilter/vf_dnn_processing: fix fate-source - Guo, Yejun git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_dnn_processing: fix fate-source Signed-off-by: Guo, Yejun <yejun.guoⓐintel.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavfilter/vf_dnn_processing.c
• 04:55
  avfilter/vf_dnn_processing: correct duplicate statement - leozhang git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_dnn_processing: correct duplicate statement Signed-off-by: leozhang <leozhangⓐqiyi.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavfilter/vf_dnn_processing.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 16:21
  Add a moving watermark that changes position every x seconds with ffmpeg - David Tran Newest 'ffmpeg' Questions - Stack Overflow
  Currently, I add a watermark to the bottom right of my video to prevent others from republishing it. However, they blur the watermark so I'm thinking of adding a moving watermark that changes its position every x seconds. Below is my current ffmpeg command: ffmpeg -i input.mp4 -i logo.png -filter_complex "[1][0]scale2ref=iw/4:ow*90/272[wm][vid];[vid][wm]overlay=W-w-W*10/100:H-h-H*5/100" -preset veryfast output.mp4 How can I make the watermark position from the bottom right to top right, to top left, and bottom left every 30 seconds? Thank (...)
• 15:59
  Is there an elegant way to split a file by chapter using ffmpeg? - Kattern Newest 'ffmpeg' Questions - Stack Overflow
  In this page, Albert Armea share a code to split videos by chapter using ffmpeg. The code is straight forward, but not quite good-looking. ffmpeg -i "$SOURCE.$EXT" 2>&1 | grep Chapter | sed -E "s/ *Chapter #([0-9]+.[0-9]+): start ([0-9]+.[0-9]+), end ([0-9]+.[0-9]+)/-i \\"$SOURCE.$EXT\\" -vcodec copy -acodec copy -ss \\2 -to \\3 \\"$SOURCE-\\1.$EXT\\"/" | xargs -n 11 ffmpeg Is there an elegant way to do this job?
• 15:54
  Joining a video stream in ffmpeg by passing an SDP file as inline data - user1447903 Newest 'ffmpeg' Questions - Stack Overflow
  Afternoon. Using ffmpeg I can open an SDP file using the syntax: ffmpeg -protocol_whitelist file -i file.sdp Does anyone know if it is possible to join the stream described in the sdp file without first writing the contents to a file? So, for example, if the SDP file contents is: v=0 m=video 1234 RTP/AVP 96 c=IN IP4 232.1.2.3 a=rtpmap:96 MP4V-ES/90000 a=source-filter: incl IN IP4 232.1.2.3 1.2.3.4 Can I use the data input type described here: https://ffmpeg.org/ffmpeg-protocols.html#data To join the same stream doing something like: ffmpeg -protocol_whitelist data -i (...) -- https://ffmpeg.org/ffmpeg-protocols.html#data
• 14:38
  rtmp can be played by ffplay, but video.js not - Cat Tom Newest 'ffmpeg' Questions - Stack Overflow
  I just run ffprobe -show_frames -i rtmp://127.0.0.1:1935/live/0 and I got: ffprobe version 4.1 Copyright (c) 2007-2018 the FFmpeg developers built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609 configuration: --enable-shared --enable-libx264 --enable-sdl --enable-gpl libavutil 56. 22.100 / 56. 22.100 libavcodec 58. 35.100 / 58. 35.100 libavformat 58. 20.100 / 58. 20.100 libavdevice 58. 5.100 / 58. 5.100 libavfilter 7. 40.101 / 7. 40.101 libswscale 5. 3.100 / 5. 3.100 libswresample 3. 3.100 / 3. 3.100 libpostproc 55. 3.100 / 55. 3.100 [h264 ⓐ 0xf5e400] Invalid NAL unit 0, (...)
• 13:49
  Web camera Logitech and Linux - Nick Saw Newest 'ffmpeg' Questions - Stack Overflow
  I have Logitech C310 camera with the declared characteristics of 720p 30fps. If you connect the camera to windows, the recording is fully consistent with the stated 720p 30fps - the picture is clear. The challenge is to connect the same camera to OrangePI (server Armbian) and to save video files on it. The camera appears as /dev/video0. sudo ffmpeg -f v4l2 -s 1280x720 -i /dev/video0 output.wmv As a result, I get a crumbly picture with a frequency of 5 fps. Maybe I'm using ffmpeg incorrectly? Please help me who has experience with Web cameras on Linux ... Thanks in advance. (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 10:22
  Anomalie #4397: dans n'est pas échappé - b b Revisions : SPIP
  Rectificatif, c'est traiter_modele dans textwheel qui s'occupe de ça.
• 10:19
  Anomalie #4397: dans n'est pas échappé - b b Revisions : SPIP
  Ça vient donc de inc_marquer_doublons_doc_dist qui est dans le plugin medias + version cible.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 08:48
  Google Speech Recognition API output errors, unsure why they're occuring - Requiem_7 Newest 'ffmpeg' Questions - Stack Overflow
  This is the output for when I feed flac files into Google's Speech Recognition API. It says that if starts and finishes most of the files but then it gives me these errors when it nears the end. I have checked and all these files are native flac files. I took out a good chunk of the output above "source/out70.flac started" becuase it's all the same besides the file number. source/out70.flac started source/out25.flac started source/out17.flac done source/out18.flac started source/out25.flac done source/out20.flac done source/out21.flac started source/out10.flac done source/out100.flac (...)
• 08:12
  How can we reduce the size of audio file after uploading? - Arjun Pujari Newest 'ffmpeg' Questions - Stack Overflow
  I have used this command in the terminal to install the package: composer require pbmedia/laravel-ffmpeg. The package is successfully downloaded, but I don't know how to use it. I don't even know if this package can also reduce the audio file size or not. Anyone know any other library or package? Select Audio to upload: Here is my controller. Write basic code for save file: namespace App\\Http\\Controllers; use Illuminate\\Http\\Request; use Pbmedia\\LaravelFFMpeg\\FFMpeg; class FileCompress extends Controller public function compressFile(Request $request) $uploadFileName = (...)

Newest 'x264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/x264

• 06:17
  decode a mp4 video with gstreamer - KKc Newest 'x264' Questions - Stack Overflow
  I want to play a mp4 video in Gstreamer, but i got an error with the x264dec which is not found. I wrote this pipeline gst-launch filesrc \\ location=/media/thesis/Gstreamer/pub_Irma.mp4 \\ ! qtdemux name=demux demux. ! queue ! faad \\ ! audioconvert ! audioresample ! autoaudiosink demuxer. \\ ! queue ! x264dec ! ffmpegcolorspace ! autovideosink After this step, my aim is to generate execution traces of a mp4 video decoding. I don't know where is the problem with (...)

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

• 05:48
  Revision 118462: [Salvatore] [source:_plugins_/saisies/trunk/lang/ saisies] Export ... - salvatoreⓐ… Revisions : saisies
  [Salvatore] saisies Export depuis ​http://trad.spip.net -- Log

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 05:20
  How to convert m4v and wmv videos to mp4 format using ffmpeg? - Balaji Kandasamy Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg to convert videos to mp4 in my PHPMotion project. I am not able to convert wmv and m4v video to mp4 format. I've pasted the command that I used to convert wmv and m4v: ffmpeg -i 1.wmv -ab 128 -b 1200 test.mp4 ffmpeg -i 1.m4v -ab 128 -b 1200 test.mp4 When I use this codes, i got an error message: Output #0, mp4, to 'test.mp4': Stream #0.0: Video: mpeg4, yuv420p, 640x360, q=2-31, 1 kb/s, 90k tbn, 24 tbc Stream #0.1: Audio: 0x0000, 44100 Hz, stereo, s16, 0 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 Unsupported codec for output stream #0.1 How can I solve (...)
• 04:47
  How to use ffmpeg to cut audio into overlapping segments? - Maryam Rahmani Moghaddam Newest 'ffmpeg' Questions - Stack Overflow
  I have used the following code in python to cut an audio file to equal parts with a length of 5 seconds: import subprocess command = "ffmpeg -i audio.wav -f segment -segment_time 5-c copy every_5_sec/out%03d.wav" subprocess.call(command, shell=True) But I need overlapping parts. In other words, I need an audio segment to contain one second of the previous and one second of the next audio segments.
• 04:45
  More problems with FFmpeg not recognizing the directory I'm sending it to - Requiem_7 Newest 'ffmpeg' Questions - Stack Overflow
  I am creating a program that takes an audio file, breaks it up into 30-second audio files, and sends those files to Google's Speech Recognition API to transcribe the audio. I'm using FFmpeg to break up the original audio file and make the 30-second files. It was working for about 20 minutes and I didn't change anything but now it's giving me an error saying that no such file or directory exists. Here is the error it gives me: C:\\Users\\hmkur\\Desktop\\Python\\Transcribing_Audio_GoogleAPI_Python>ffmpeg -i source/valve.flac -f segment -segment_time 30 -c copy parts/out%01d.flac ffmpeg version (...)
• 01:04
  Upload a picture to generate a video with special effects - Zedd Newest 'ffmpeg' Questions - Stack Overflow
  I am stucked by a video processing feature, Specifically, upload an image and then generate a video based on various video templates. Here are the video templates: http://video-static.biku8.com/data/video/template/3286012076458048/7437ab55-2e83-4a36-9046-5708fcddf4c1.mp4 http://video-static.biku8.com/data/video/template/3274256089907264/ae8fa3f7-6c9c-45ca-810f-48db92cc14cb.mp4 http://video-static.biku8.com/data/video/template/3213894231425088/bf107d439b9043a58c1ea0ba26f811db_template.mp4 ... As shown in the video templates above, I just need to upload a photo to generate a great video. (...) -- http://video-static.biku8.com/data/video/template/3286012076458048/7437ab55-2e83-4a36-9046-5708fcddf4c1.mp4, http://video-static.biku8.com/data/video/template/3274256089907264/ae8fa3f7-6c9c-45ca-810f-48db92cc14cb.mp4, http://video-static.biku8.com/data/video/template/3213894231425088/bf107d439b9043a58c1ea0ba26f811db_template.mp4

7 November

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

• 16:41
  Revision 118456: un static qui ne retournait pas le bon résultat + ne prenait pas en ... - maieulⓐ… Revisions : saisies
  un static qui ne retournait pas le bon résultat + ne prenait pas en compte une récursivité > un static qui n'en vaut pas la peine -- Log
• 16:31
  Revision 118454: up de y - maieulⓐ… Revisions : saisies
  up de y -- Log
• 16:31
  Revision 118453: un label oublié sur les case dans les constructeur de saisies (Marcimat) - maieulⓐ… Revisions : saisies
  un label oublié sur les case dans les constructeur de saisies (Marcimat) -- Log

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 20:00
  Anomalie #4397 (Nouveau): dans n'est pas échappé - Maïeul Rouquette Revisions : SPIP
  Si j'écris alors le document 1 sera automatiquement joint à l'article (cf https://contrib.spip.net/ecrire/?exec=article&id_article=5205#forum502992) même chose si entre balise Il y a donc un souci dans la détection du modèle, qui est detecté indument alors que c'est du code

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:11
  Getting green screen in ffplay: Streaming desktop (DirectX surface) as H264 video over RTP stream using Live555 - Ram Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to stream the desktop(DirectX surface in NV12 format) as H264 video over RTP stream using Live555 & Windows media foundation's hardware encoder on Windows10, and expecting it to be rendered by ffplay (ffmpeg 4.2). But only getting a green screen like below, I referred MFWebCamToRTP mediafoundation-sample & Encoding DirectX surface using hardware MFT for implementing live555's FramedSource and changing the input source to DirectX surface instead of webCam. Here is an excerpt of my implementation for Live555's doGetNextFrame callback to feed input samples from (...) -- , , , , MFWebCamToRTP mediafoundation-sample, Encoding DirectX surface using hardware MFT
• 20:08
  How to extract sequence of lossless images with FFMPEG and pipe them to mozjpeg's cjpeg? - Finch Newest 'ffmpeg' Questions - Stack Overflow
  I know it can be down with imagemagick but mozjpeg produces much smaller images which is desirable. I want all frames of a video be extracted and converted to JPEG by mozjpeg. What I have tried: $ ind = 1 $ ffmpeg -hide_banner -ss 00:00:10 -i IN.webm -t 00:00:02 -r 24 -c:v bmp -f image2pipe pipe:1 | \\ cjpeg - workDir/$((ind++)).jpeg Error message: av_interleaved_write_frame(): Broken pipe time=00:00:00.00 bitrate=N/A speed= 0x Error writing trailer of pipe:1: Broken pipe frame= 1 fps=0.0 q=-0.0 Lsize= 6075kB time=00:00:00.04 bitrate=1194394.4kbits/s speed=0.0765x video:6075kB audio:0kB (...)
• 16:04
  Video output file duration is cut in half when processed using fluent-ffmpeg - Kamau Newest 'ffmpeg' Questions - Stack Overflow
  I have a node server set up and it takes a file for pre-processing. When using only ffmpeg library, files are processed with no problem, when using fluent-ffmpeg, if a video is 20 seconds, the output will only be the last half of the video (10 seconds). I've tried multiple files of varying length and with same issue. Any idea why this would happen? const ffmpegPath = require('ⓐffmpeg-installer/ffmpeg').path; const ffprobePath = require('ⓐffprobe-installer/ffprobe').path; const ffmpeg = require('fluent-ffmpeg'); ... ffmpeg.setFfmpegPath(ffmpegPath); ffmpeg.setFfprobePath(ffprobePath); (...)
• 15:31
  How to solve Fatal error: Uncaught Alchemy\\BinaryDriver\\Exception\\ExecutionFailureException: ffmpeg failed to execute command - Ahmed Rashid Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to encode video using the PHP-FFMpeg library, but there are some errors that are shown to me. The errors: Fatal error: Uncaught Alchemy\\BinaryDriver\\Exception\\ExecutionFailureException: ffmpeg failed to execute command "C:/FFmpeg/bin/ffmpeg.exe" -y -i video1.mp4 -async 1 -metadata:s:v:0 start_time=0 -threads 12 -vcodec libx264 -acodec libfaac -b:v 1000k -refs 6 -coder 1 -sc_threshold 40 -flags +loop -me_range 16 -subq 7 -i_qfactor 0.71 -qcomp 0.6 -qdiff 4 -trellis 1 -b:a 128k -vf "[in]scale=320:240 [out]" -pass 1 -passlogfile (...) -- PHP-FFMpeg library
• 13:50
  Nginx + rtmp + ffmpeg best practice to publish multiple resolutions streaming from video file - youssef hamdane Newest 'ffmpeg' Questions - Stack Overflow
  I want to make livestream from video file to multiple resolutions (480,720) using nginx and rtmp, what is the best practice that I can do for that : 1 - transcode video and store it with all resolutions that I need when user upload it using ffmpeg, and then publish every file directly example : rtmp server listen 1935; notify_method get; application live live on; ffmpeg -re -i /path/video_720.mp4 -re -i /path/video_480.mp4 -map 0 vcodec libx264 -threads 0 -vprofile baseline -acodec aac -strict -2 -f flv rtmp://localhost:1935/show/$name_720 -map 0 vcodec libx264 -threads 0 -vprofile (...)
• 10:55
  No such file or directory on android ffmpeg in api level 28 - Mohammadreza Janipour Newest 'ffmpeg' Questions - Stack Overflow
  I use FFmpeg and its ok when I run it on android device with API level 25 but when I run it on a device with API level 27 show "No such file or directory" error in my log. My FFmpeg library: bravobit.nl.ffmpegandroid Please help me. My full logcat: E/FFmpeg: Exception while trying to run: [/data/user/0/com.myapplication/files/ffmpeg, -i, /external_files/org_94594219219624692.mp3, -af, adelay=0|0, -preset, ultrafast, /external_files/vc1_94594219219624692.mp3] java.io.IOException: Cannot run program "/data/user/0/com.myapplication/files/ffmpeg": error=2, No such file or directory at (...)
• 08:52
  How to use blend and concat filter with audio stream? - Zenix-K Newest 'ffmpeg' Questions - Stack Overflow
  I tried to combine two video files with concat, blend and amx filter. I've succeed two video when I used only video stream. after then adding audio streams the code(filter script) Ffmpeg didn't work. two video crossfade(Good work) ffmpeg -y -i "A.mp4" -i "B.mp4" -filter_complex "[0:v]split[v000][v010];[1:v]split[v100][v110];[v000]trim=0:17[v001]; [v010]trim=17:27[v011t];[v011t]setpts=PTS-STARTPTS[v011];[v100]trim=0:10[v101]; [v110]trim=10:50[v111t];[v111t]setpts=PTS-STARTPTS[v111];[v101] [v011]blend=all_expr='A*(if(gte(T,10),1,T/10))+B*(1- (...)
• 08:38
  Stream audio to multiple web browsers - Robert Bain Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to play some audio on my linux server and stream it to multiple internet browsers. I have a loopback device I'm specifying as input to ffmpeg. ffmpeg is then streamed via rtp to a WebRTC server (Janus). It works, but the sound that comes out is horrible. Here's the command I'm using to stream from ffmpeg to janus over rtp: nice --20 sudo ffmpeg -re -f alsa -i hw:Loopback,1,0 -c:a libopus -ac 1 -b:a 64K -ar 8000 -vn -rtbufsize 250M -f rtp rtp://127.0.0.1:17666 The WebRTC server (Janus) requires that the audio codec be opus. If I try to do 2 channel audio or increase the (...)
• 07:04
  FFmpeg giving me failed to open segment error. Trying to parse .wav file into 30-second files - Requiem_7 Newest 'ffmpeg' Questions - Stack Overflow
  Here is the command I used and the output when I try and parse the .wav file into 30-second clips: C:\\Users\\hmkur>ffmpeg -i C:\\Users\\hmkur\\Desktop\\Python\\Transcribing_Audio\\source\\valve.wav -f segment -segment_time 30 -c copy parts/out%09d.wav ffmpeg version git-2019-11-05-c54268c Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.2.1 (GCC) 20191010 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb (...)
• 02:53
  FFMPEG freeze last frame until end time - Michael Joseph Aubry Newest 'ffmpeg' Questions - Stack Overflow
  I have an animation that gets turned into a bunch of png's. I am trying to keep the animation under 2 seconds. My users have a timeline where they can specify how long they want it to be visible. I take about 120 screenshots that will mean 120 frames gets passed through at 60 frames per second, which is 2 seconds. The user may want the text to be there for 5 seconds. My goal is to take the last frame and have it stay in the video until the specified end time. How can I take the 120th frame and keep it in the video until then using FFMPEG. Here is my generated command below. ffmpeg -i (...)

6 November

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 20:07
  avcodec/arm/mlpdsp: add missing dependency for truehd - Aman Gupta git.videolan.org Git - ffmpeg.git/rss log
  avcodec/arm/mlpdsp: add missing dependency for truehd Signed-off-by: Aman Gupta <amanⓐtmm1.net> [DH] libavcodec/arm/Makefile
• 23:05
  avcodec/libvpxdec.c,cosmetics: bpp -> bpc - James Zern git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libvpxdec.c,cosmetics: bpp -> bpc Signed-off-by: James Zern <jzernⓐgoogle.com> [DH] libavcodec/libvpxdec.c
• 20:37
  avfilter/Makefile: add missing framesync dependency to bm3d & mix filters - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avfilter/Makefile: add missing framesync dependency to bm3d & mix filters Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] libavfilter/Makefile
• 20:35
  configure: select missing rdft for several filters - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select missing rdft for several filters afir, sinc, superequalizer, surround For afir fft is replaced with rdft as: rdft_select="fft" Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:31
  FFMPEG pipe input filenames from command line on windows - Andrew Harris Newest 'ffmpeg' Questions - Stack Overflow
  I am concatenating a bunch of files on a windows 10 box into a single file using "ffmpeg -f concat -safe 0 -i list.txt -c copy output.mp4". This works fine when I generate list.txt in the required format. What I am wanting is to not have to generate the file first and instead pipe the filenames in as the examples here show for *nix. I have tried as follows "ffmpeg -f concat safe 0 -i Any idea's how to make this work? -- here
• 21:31
  Piping stream to ffmpeg via forked process stdin - Yanick Salzmann Newest 'ffmpeg' Questions - Stack Overflow
  I am piping data from my raspberry pi camera to ffmpeg to convert them into an mp4 stream. I do so not with libavformat/libavformat but I call ffmpeg directly like this: context->ffmpeg_process = utils::launch_subprocess( "ffmpeg", "-f", "rawvideo", "-pix_fmt", "yuv420p", "-s", "1920x1080", "-r", "30", "-i", "-", "-c", "libx264", "-f", "mp4", "-movflags", "frag_keyframe+empty_moov", "-", "-loglevel", "trace" ); This is my wrapper around fork and exec like this: const auto child = fork(); if(child == 0) if (dup2(stdin_pipe[PIPE_READ], STDIN_FILENO) == -1) exit(errno); // same for (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 13:18
  fftools/ffmpeg_opt: Fix mixed declarations and code - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  fftools/ffmpeg_opt: Fix mixed declarations and code Introduced in ed3c317d. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] fftools/ffmpeg_opt.c
• 08:00
  avcodec/extract_extradata_bsf: fix typo in comments - leozhang git.videolan.org Git - ffmpeg.git/rss log
  avcodec/extract_extradata_bsf: fix typo in comments Signed-off-by: leozhang <leozhangⓐqiyi.com> Reviewed-by: Gyan <ffmpegⓐgyani.pro> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/extract_extradata_bsf.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 19:22
  How to make my video in landscape mode using ffmpeg - Aarwil Newest 'ffmpeg' Questions - Stack Overflow
  I have four video chats. Somehow I have managed to cut videos into pieces, stored in array then stacked and finally concat the video which is in the youtube link down below. I have used the size in the portrait view is 640*480. But I need to show them in the landscape. Suggest me any ideas. Landscape view: https://youtu.be/u8tmL2-CdK0 Portrait view: https://youtu.be/lO-Q3I9X8OA These are my inputs Input #0, matroska,webm, from 'PA473fbf06ed1f952f95c88b9cf22ed0ba_pre.mkv': Metadata: encoder : GStreamer matroskamux version 1.8.1.1 creation_time : 2019-11-05T06:08:19.000000Z Duration: (...) -- https://youtu.be/u8tmL2-CdK0, https://youtu.be/lO-Q3I9X8OA
• 17:56
  Batch encode then compare file size vs original and delete larger - PolarBear Newest 'ffmpeg' Questions - Stack Overflow
  Currently running a batch script to mass convert media clips to save some storage space. I'd like to also add automation to the script that after the conversion will delete which ever ends up being the larger file. Not entirely sure how to best set that up at the end of each conversion. pushd "%2" ::Default variables SET paths=paths.txt ::paths lets you put a bunch of folder paths in a text file and run this across those, instead of individually. I use this to run overnight on a LOT of footage folders at once. Thanks to Aayla for a lot of these upgrades ::Fun tip - select your folders (15 (...)
• 17:14
  How to process h264 formatted video, modify each frame & create the another h264 formatted video with the processed images using openCV/ffmpeg - Rahul Talole Newest 'ffmpeg' Questions - Stack Overflow
  I want to process a "h264" formatted video frame by frame. Process the frame to add some kind of noise in the same (for ex. salt & pepper noise) & recreate the "h264" formatted video from the processed images (noisy images) with the same sequence as the original "h264" video. I tried the same using the openCV but I am not getting any workable specific codec (required by cv2.VideoWriter) to create the h264 formatted video. So, I have created the mp4 video of the noisy images & then converted the same from mp4 to h264 format using ffmpeg. But I guess I am loosing too much (...)
• 16:19
  FFMPEG compressed MP4 video not playing on mozila "file currupt error" - user2519007 Newest 'ffmpeg' Questions - Stack Overflow
  I have compressed MP4 video using FFmpeg in PHP environment. Videos are being compressed but these are not playing in firefox showing error: Video can't be played because the file is corrupt while this video is playing fine in VLC media player also in chrome browser. My code of compression is as- exec("ffmpeg -i input.mp4 -acodec mp2 output.mp4");
• 14:24
  cannot find ffmpeg in videoshow in nodejs - Sunil Garg Newest 'ffmpeg' Questions - Stack Overflow
  I want to create video from image files. So I have installed videoshow module. And configured the same as per the documentaion. var videoOptions = fps: 25, loop: 5, // seconds transition: true, transitionDuration: 1, // seconds videoBitrate: 1024, videoCodec: 'libx264', size: '640x?', audioBitrate: '128k', audioChannels: 2, format: 'mp4', pixelFormat: 'yuv420p' var images = [ "D:/PROJECTS/Video/storage/1.jpg", "D:/PROJECTS/Video/storage/2.jpg" ]; app.get("/video", function () videoshow(images, videoOptions) // .audio('song.mp3') .save('video.mp4') .on('start', function (command) (...) -- videoshow module
• 14:14
  FFmpeg concat video and audio out of sync - Xeoncross Newest 'ffmpeg' Questions - Stack Overflow
  Joining multiple files using ffmpeg concat seems to result in a mismatch of the timestamps or offsets for the audio. I've tried with several videos and noticed the same problem for h.264 / MP4. Using concat and encoding the video seems to work fine. The audio stays in sync as ffmpeg does the full conversion calculations and seems to get everything right. However, simply concatenating the videos without any transformation or encoding results in a slowly increasing sync issue. Obviously, encoding the videos rather than simply joining them will result in a loss of information/quality so I (...) -- concat, tried several flags, Here is the full ffprobe output, Here is the original (red) vs the segment (green), http://davidpennington.me/share/audio_sync_test_video.zip
• 12:30
  FFMPEG command is not Working in Android Q - SAVALIYA REENA Newest 'ffmpeg' Questions - Stack Overflow
  I am using the FFMPEG library to get a watermark stamp on video. It is working like charm in all versions excepts Android 10, It gives me below exception. E/FFmpeg: Exception while trying to run: [Ljava.lang.java.io.IOException: Cannot "/data/user/0/com.videowatermark.addtextandtimestampongalleryvideos/files/ffmpeg": error=13, Permission denied Caused by: java.io.IOException: error=13, Permission denied at java.lang.UNIXProcess.forkAndExec(Native Method) at java.lang.UNIXProcess.(UNIXProcess.java:133) at java.lang.ProcessImpl.start(ProcessImpl.java:141) at (...)
• 09:07
  FileNotFoundError on aws Lambda when concatenating videos with ffmpeg - Shibu Menon Newest 'ffmpeg' Questions - Stack Overflow
  Goal : Concat 2 videos (both are in an s3 bucket) via aws Lambda using ffmpeg Upload the resultant output.mp4 to another S3 bucket Python 3+ I've already created a layer containing a static ffmpeg The Error : "errorMessage": "[Errno 2] No such file or directory: '/tmp/output.mp4'", "errorType": "FileNotFoundError", "stackTrace": [ [ "/var/task/lambda_function.py", 19, "lambda_handler", "s3.Object(bucketLowRes, mp4OutputFileName).put(Body=open(new_file_key, 'rb'))" ] ] My Lambda function : import json import os import subprocess import boto3 s3 = boto3.resource('s3') bucketLowRes = (...)
• 03:47
  Pausing video streaming at EOF with FFMPEG ( Streaming and saving simultaneously) - Padfoot Newest 'ffmpeg' Questions - Stack Overflow
  I am writing a video to a local file using videowriter in OpenCV and at the same time, I am streaming it using ffmpeg+RTSP. But my video writing is slower than streaming. So RTSP is reaching the EOF and streaming is stopped. Is there any way or option in FFMPEG to pause the stream if it reached EOF and resumes again from the same time point. EDIT System - Ubuntu 16, 32 GB RAM. For video writing (frame by frame) - int i = 0; VideoWriter video("output.mp4",CV_FOURCC('a','v','c','1'),25, Size(frame_width,frame_height)); while(1) Mat frame; cap >> frame; if (frame.empty()) break; (...)
• 03:03
  Writing a video frame by frame using ffmpeg - Chris Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to write a video frame by frame using ffmpeg as explained here: http://zulko.github.io/blog/2013/09/27/read-and-write-video-frames-in-python-using-ffmpeg/ However, I am always getting an OSError: [Errno 22] Invalid argument. I am on Windows 7 and using Python 3.4. Here is the code: import subprocess as sp import numpy as np import time ffmpeg_bin = r'C:\\path\\to\\ffmpeg\\ffmpeg.exe' command = [ffmpeg_bin, '-y', # (optional) overwrite output file if it exists '-f', 'rawvideo', '-vcodec','rawvideo', '-s', '420x360', # size of one frame '-pix_fmt', 'rgb24', '-r', '24', # frames per (...) -- http://zulko.github.io/blog/2013/09/27/read-and-write-video-frames-in-python-using-ffmpeg/
• 00:46
  Aws lambda audio features extraction ( Not enough storage -Layers ) - Amit Neuhaus Newest 'ffmpeg' Questions - Stack Overflow
  We have IOT sensors that uploads wav files into S3 Bucket. We want to be able to extract sound features from each file that is getting uploaded (create obj event) with aws lambda For that we need: python librosa or pyAudio analysis package + numpy and scipy. (~ 240mb unzziped) ffmpeg (~ 70mb unzziped) As you can see there is no way to put them all together in same lambda package (250mb uncompressed max). And im getting an error when not including the ffmpeg in the layers when gathering the wav file: [ERROR] FileNotFoundError: [Errno 2] No such file or directory: 'ffprobe': 'ffprobe' (...)

5 November

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 20:28
  avcodec/Makefile: add missing msmpeg4* dependencies to wmv1 encoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avcodec/Makefile: add missing msmpeg4* dependencies to wmv1 encoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] libavcodec/Makefile
• 20:21
  avcodec/Makefile: add missing h263data dependency to snow encoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avcodec/Makefile: add missing h263data dependency to snow encoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] libavcodec/Makefile
• 20:17
  avcodec/Makefile: add missing vorbis_data dependency to opus encoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avcodec/Makefile: add missing vorbis_data dependency to opus encoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] libavcodec/Makefile
• 20:01
  configure: select mdct for dca encoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select mdct for dca encoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 04:32
  avdevice/v4l2: Remove av_assert0 when format not supported - Andriy Gelman git.videolan.org Git - ffmpeg.git/rss log
  avdevice/v4l2: Remove av_assert0 when format not supported Before this commit an av_assert0 would fail if a v4l2 device did not support a target format. For example, ./ffmpeg -f v4l2 -codec:v h264 -i /dev/video0 -f mpegts - would signal an abort if /dev/video0 did not support h264. The new behaviour is to return an AVERROR(EINVAL) error code. An av_assert0 has been added to verify this return. Fixes #6629 Signed-off-by: Andriy Gelman <andriy.gelmanⓐgmail.com> Reviewed-by: Nicolas George <georgeⓐnsup.org> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:11
  FFMPEG merge audio tracks into one and encode using NVENC - L0Lock Newest 'ffmpeg' Questions - Stack Overflow
  I often shoot films with several audio inputs, resulting in video files with multiple audio tracks supposed to be played all together at the same time. I usually go through editing those files and there I do whatever I want with those files, but sometimes I would also like to just send the files right away online without editing, in which case I would enjoy FFMPEG's fast & simple & quality encoding. But here's the catch: most online video streaming services don't support multiple audio tracks, so I have to merge them into one so we can hear everything. I also want to upscale the (...)
• 21:45
  ffmpeg Save incoming RTP audio only stream to file - hemu Newest 'ffmpeg' Questions - Stack Overflow
  I have setup kurento media server, which streams RTP audio (only audio). Now I am trying to test the received RTP stream. For that, I am saving the incoming RTP stream to file converting them to mp3. I am using the following command. sudo ffmpeg -loglevel debug -protocol_whitelist file,crypto,udp,rtp -reorder_queue_size 100 -acodec opus -i mySdpOffer.sdp -acodec mp3 -y -f segment -segment_atclocktime 1 -segment_time 900 -reset_timestamps 1 -strftime 1 out-%Y%m%dT%H%M.mp3 SDP offer: v=0 t=0 0 m=audio 8978 RTP/AVP 98 c=IN IP4 127.0.0.1 a=recvonly a=rtpmap:98 opus/48000/2 a=fmtp:98 (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 00:25
  configure: select bswapdsp for ylc decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select bswapdsp for ylc decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 00:23
  configure: select fft for qdmc decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select fft for qdmc decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 00:20
  configure: select bswapdsp for mdec decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select bswapdsp for mdec decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 00:14
  configure: select bswapdsp for imm4 decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select bswapdsp for imm4 decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 00:12
  avcodec/Makefile: add missing ass dependency to ccaption decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avcodec/Makefile: add missing ass dependency to ccaption decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] libavcodec/Makefile
• 00:10
  configure: select audiodsp for acelp_kelvin decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select audiodsp for acelp_kelvin decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 00:06
  configure: select mdct for atrac3al decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select mdct for atrac3al decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure
• 00:01
  configure: select mdct & sinewin for atrac3pal decoder - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select mdct & sinewin for atrac3pal decoder Signed-off-by: Lou Logan <louⓐlrcd.com> [DH] configure

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 19:16
  FFMPEG add image at the end of a video - Pimager Newest 'ffmpeg' Questions - Stack Overflow
  I need to add an image for one second at the end of a .mp4 video file using FFMPEG. My video size is WxH and my image size is MxM, so video and image sizes are different. I have tried different options in order to add the image at the end of the video as: ffmpeg -i "concat: videoIn.mp4|image.jpg" -c copy videoOut.mp4 or ffmpeg -i videoIn.mp4 -loop 1 -t 1 -i image.jpg -f lavfi -t 2 -i anullsrc -filter_complex "[0:v][0:a][1:v][2:a] concat = n=2:v=1:a=1[v][a] -c:v libx264 -c:a aac -strict -2 -map" [v] "-map" [a]" videoOut.mp4 but none gave me the result I need. Can someone help me? Kind (...)
• 18:43
  Can not add thumbnail image to MP4 using FFMPEG CLI - Youssof H. Newest 'ffmpeg' Questions - Stack Overflow
  After searching for hours, about the easiest solution for adding a thumbnail to an MP4 using a CLI, I came back to the start "FFMPEG". Though I skipped it at first wishing I will get a working tool but no, I will stick to "FFMPEG". Even after updating the repository ==> Same issue. I followed the exact code present at the official documentation that says: ffmpeg -i path/to/in.mp4 -i path/to/IMAGE.png -map 0 -map 1 -c copy -c:v:1 png -disposition:v:1 attached_pic path/to/out.mp4 The following error log shows: Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Stream (...) -- official documentation
• 18:23
  Any solution for ffplay in Android? - ALirezaSO Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to add GoPro (Hero) inside my app and I wanted to have live streaming to make my solution complete. Thanks to KonradIT who was committed to this task, I found most of what i need there. Anyway, my main concern is about live streaming. He has a solution for this which is based on ffmpeg, but it has two main problems aside from some minor bug fixings. First, the output is not scalable and just shows a tiny picture which is not resizable. The other is its very low FPS (less than 17 FPS). We have a delay about six seconds too. On the PC side, we have a very simple solution using (...) -- KonradIT, solution
• 15:28
  os.path.join () on firstargv and list [closed] - user243 Newest 'ffmpeg' Questions - Stack Overflow
  I am iterating through a directory and sorting the filenames based on time. These sorted filenames are then stored as a list. The directory is specified as firstargv I need to take each filename from the list and join it with the directory specified as firstargv creating an entire path so that I can pass it as file to ffprobe later for further process. Below is the code I am using but I am not getting desired result, import subprocess, sys, os firstarg=sys.argv[1] a = str(firstarg) time = sorted(os.listdir( a ), key=lambda s: s[9:]) filename = time for y in filename: new_path = (...)
• 14:19
  HTTP error 403 Forbidden error with streamlink and ffmpeg python - james Newest 'ffmpeg' Questions - Stack Overflow
  I am currently trying to save the video of a live stream on the disk using the link to the m3u8 file, passing it to streamlink and then converting everything to ffmpeg, but when the streamer disconnects or the connection drops I get this error HTTP error 403 Forbidden Failed to reload playlist 0 and the program never ends, never reach the command line to convert the mkv video in mp4. How can I catch the exception and ignore it? This is my code url = 'url.m3u8' stream_url = streamlink.streams(url)['worst'].url ffmpeg_process = Popen(["path-to-ffmpeg.exe", "-i", stream_url, "-c", "copy", (...)
• 14:01
  PHP FFMPEG - Convert .mov to .mp4 (H264) - Alex Newest 'ffmpeg' Questions - Stack Overflow
  I've recently installed the PHP-FFMpeg lib on a server and used the following tutorial: https://github.com/PHP-FFMpeg/PHP-FFMpeg I managed to convert a .mov video (uploaded through a mobile device) to webm and ogg but when encoding to mp4 I always get an "Encoding Failed" message from the error object (in a try catch). This is the code I'm using after instantiating FFMPEG $video->filters()->resize(new FFMpeg\\Coordinate\\Dimension(756, 461), $mode = RESIZEMODE_SCALE_WIDTH)->synchronize(); (...) -- https://github.com/PHP-FFMpeg/PHP-FFMpeg
• 12:51
  FFmpeg: How to convert vertical video with black sides, to video 16:9, with blurred background sides - Andrey Newest 'ffmpeg' Questions - Stack Overflow
  How to make this by using FFmpeg? Example without FFmpeg: Adobe After Effects Sony Vegas Pro -- Adobe After Effects, Sony Vegas Pro
• 10:54
  How to decode MP4 file use GPU use ffmpeg.autogen? - wang ning Newest 'ffmpeg' Questions - Stack Overflow
  How to decode MP4 file use GPU? I use the demo of FFmpeg.AutoGen. It is good for code: private static unsafe void DecodeAllFramesToImages() But this is use CPU to decode. I want get a demo use GPU to decode. How can i do this ? This is FFmpeg.AutoGen demo: private static unsafe void DecodeAllFramesToImages() // decode all frames from url, please not it might local resorce, e.g. string url = "../../sample_mpeg4.mp4"; var url = "https://rtmp-luzhi.oss-cn-beijing.aliyuncs.com/eryuan2019/%E5%84%BF%E7%AB%A5%E6%89%8B%E8%B6%B3%E5%8F%A3%E7%97%85%E7%9A%84%E9%98%B2%E6%AD%A2%E4%B8%8E%E6%B2%BB%E7%96%97
• 09:57
  RTP Stream shows gray background then crashes - Carlo Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to play some RTP stream in python using opencv and an SDP file. I'm getting a gray window with some distorted images at the top(see attached image) and after a few seconds the program would crash and the gray window would close. I also tried to capture the packets of the stream via wireshark and extract the video information using media info. Note:The extracted video was playing smoothly. Media information using GSpot The SDP file contains: v=0 m=video 5000 RTP/AVP 103 c=IN IP4 239.194.115.71 a=rtpmap:103 H264/90000 These are the error codes shown in the terminal: (...) -- https://drive.google.com/open?id=1zppjXVgEcL8Ws-xP3e1J7NJF1UGdPzMA

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

• 05:40
  Revision 118431: [Salvatore] [source:_plugins_/saisies/trunk/lang/ saisies] Export ... - salvatoreⓐ… Revisions : saisies
  [Salvatore] saisies Export depuis ​http://trad.spip.net -- Log
• 05:40
  Revision 118430: [Salvatore] [source:_plugins_/saisies/trunk/lang/ saisies] Export ... - hanjo.spipⓐ… Revisions : saisies
  [Salvatore] saisies Export depuis ​http://trad.spip.net de la langue nl -- Log

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 04:56
  Getting FFProbe Information With Python - Robin Hood Newest 'ffmpeg' Questions - Stack Overflow
  I've been attempting to figure this out for forever now (I'm new to programming) and I can't figure it out. I'm attempting to build a script that will test the file, and give me output from which I can get information like "Audio Format" that I can then put into the filename. However, I can't even get the script to return any file info. I've hit a wall at inserting an input file... So at this point I just need help getting it to spit out info based on the argvs I've thrown in. Hopefully I'll be able to figure out how to parse the audio info from that. My attempt that seems to be close: (...)
• 04:29
  HTML5 video after FFmpeg compress set currentTime behavior defferent in browsers - Qyellow Newest 'ffmpeg' Questions - Stack Overflow
  i have a mp4 video(oceans.mp4), and i use ffmpeg compress itffmpeg -i oceans.mp4 output.mp4(output.mp4). then i open the origin in the chrome and safari, in the console, i write: var video = document.querySelector('video') video.currentTime = 4.68 the video locate the same frame(at least looks the same) but i open the output, it looks different! so i do many test: it might be the broswers difference? may be not. the origin video looks totally the same it might be the some props of video? i use ffprobe -show_streams -select_streams v:0 output.mp4to show and compare two videos, only (...) -- oceans.mp4
• 02:12
  Playing audio with FFMPEG - Codevalley Newest 'ffmpeg' Questions - Stack Overflow
  I have been trying to port FFMPEG (for playing audio) into Android using NDK. I have had some success I could build FFMPEG and link it via NDK. I could call avcodec_decode_audio3() and decode a given audio file. So here I have a audio buffer output from the function. How do I play this now? Any ffmpeg guys can tell me the exact steps to decode and play audio. I am really clueless of what to do with the audio buffers created I got from avcodec_decode_audio3(). thanks a (...)

4 November

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 12:09
  doc/bitstream_filters: Fix copy an paste typo - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  doc/bitstream_filters: Fix copy an paste typo Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] doc/bitstream_filters.texi

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

• 14:49
  Revision 118415: up de z - maieulⓐ… Revisions : saisies
  up de z -- Log
• 14:49
  Revision 118414: soyons précis - maieulⓐ… Revisions : saisies
  soyons précis -- Log
• 14:49
  Revision 118413: constructeur de saisie: regrouper toutes les informations sur les ... - maieulⓐ… Revisions : saisies
  constructeur de saisie: regrouper toutes les informations sur les messages d'obligation au même endroit. Cela évite que l'on remplisse le message d'erreur si un champ obligatoire n'es pas rempli en pensant remplir en réalité le message d'obligation -- Log
• 14:49
  Revision 118412: explication plus complète sur le message info_obligatoire - maieulⓐ… Revisions : saisies
  explication plus complète sur le message info_obligatoire -- Log
• 14:49
  Revision 118411: revert r115892. Si une personne met ' ', c'est soit volontaire (pour ... - maieulⓐ… Revisions : saisies
  revert r115892. Si une personne met ' ', c'est soit volontaire (pour ne pas avoir de texte, cf discussion avec marcimat), soit une erreur (lors du remplissage du formulaire de construction de formulaire). Pour le second cas, il vaut mieux travailler sur des messages d'explication dans l'interface. Cf commits à venir -- Log

Revisions : socialtags http://zone.spip.org/trac/spip-zone/log/_plugins_/socialtags

• 21:37
  Revision 118424: paquet.xml et plugin.xml doivent avoir le même numéro de version - spip.franckⓐ… Revisions : socialtags
  paquet.xml et plugin.xml doivent avoir le même numéro de version -- Log

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:04
  ffmpeg - overlay a video with rounded corners - asi Newest 'ffmpeg' Questions - Stack Overflow
  I am successfully using overlaying a scaled (smaller) video on top of a larger one but am struggling to understand how could I give the small video a rounded corners mask. Edit thanks to ⓐloogan comment I've managed to get a working command that created applies a circular mask : ffmpeg -i main.mp4 -i vignette.mp4 -filter_complex [1:v]scale=300:-1[scaled]; [scaled]split [scaled0][scaled11]; [scaled0]trim=end_frame=1,geq='st(3,pow(X-(W/2),2)+pow(Y-(H/2),2));if(lte(ld(3),780*780),255,0)':3:3,loop=-1:1,setpts=N/FRAME_RATE/TB[mask]; [scaled1][mask]alphamerge[cutout]; (...)
• 17:14
  How to exclude night images to be passed for ffmpeg? - LA_ Newest 'ffmpeg' Questions - Stack Overflow
  My files have the following filenames - YYYYMMDDHHmmSS.jpg I pass them to ffmpeg (on MacOS) for timelapse creation: ffmpeg -framerate 500 -pattern_type glob -i '*.jpg' -c:v libx264 -pix_fmt yuv420p out.mp4 Now I would like to exclude night photos, for ex., if filename is between YYYYMMDD200000.jpg and YYYYMMDD080000.jpg, then files shouldn't be passed to ffmpeg. How could I achieve that (ideally - without moving files)? Upd. Using the following command now, but it captures the following hours only: 10-19. ffmpeg -framerate 500 -pattern_type glob -i (...)
• 16:19
  FFMPEG image to video with kenburns effects with dynamic number of images - Buu Newest 'ffmpeg' Questions - Stack Overflow
  Is it possible to create a video from images with kenburns effects? Anyone can help me to create a command with smooth transition is really appreciated. Thank you everyone. Here's the sample video I wan to achieved, https://trello-attachments.s3.amazonaws.com/545a93cff0b222f456c5ad82/5d8cfc0d75e80e63dae2fe6a/5a523ed328f24b0454c5c56cd0ee68e6/23442279.mp4 -- https://trello-attachments.s3.amazonaws.com/545a93cff0b222f456c5ad82/5d8cfc0d75e80e63dae2fe6a/5a523ed328f24b0454c5c56cd0ee68e6/23442279.mp4

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 08:11
  lavc/qsvenc: add the missing vp9 file - zhongli_devⓐ126.com git.videolan.org Git - ffmpeg.git/rss log
  lavc/qsvenc: add the missing vp9 file It is missed in commit 3358380 Signed-off-by: Zhong Li <zhongli_devⓐ126.com> [DH] libavcodec/qsvenc_vp9.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 13:23
  Encode video with H.264 using FFmpeg in Windows - cbuchart Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to encode a video with H.264 using FFmpeg (AV_CODEC_ID_H264), but I'm unable to init the codec correctly. No issues at all when using other codec like AV_CODEC_ID_MPEG1VIDEO. avcodec_register_all(); auto codec = avcodec_find_encoder(AV_CODEC_ID_H264); if (!codec) return false; auto codec_context = avcodec_alloc_context3(codec); if (!codec_context) return false; codec_context->codec_id = codec->id; codec_context->codec_type = AVMEDIA_TYPE_VIDEO; codec_context->width = w; // w = 1280 on tests codec_context->height = h; // h = 1024 on tests codec_context->bit_rate = w * h * 4; (...) -- https://ffmpeg.zeranoe.com/builds/
• 12:27
  How to make timelapse with ffmpeg from files with date-time names? - LA_ Newest 'ffmpeg' Questions - Stack Overflow
  I understand how to make timelapse video from the sequence of files. But what if my files have names like YYYYMMDDHHmmSS.jpg? How can I pass them in the correct order? I would prefer not to rename them (there are 55'000 files, almost 10 Gb). -- understand
• 12:04
  ffmpeg won't livestream to youtube - HeyItsDan Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to write a simple "script" that allows me to stream a music radio to YouTube or any other platform but whenever I'm trying to test it, it won't let me livestream at all, if anyone got a solution to this it would be very appreciated! StreamURL="xxxxxxxxxxxxxxxxxxxx" Key="xxxxxxxxxxxxxxxxxxxxxxxx" BackgroundPath="bg.jpg" NPPath="np.txt" ffmpeg \\ -re \\ -loop 1 \\ -framerate $FPS \\ -i $BackgroundPath \\ -s 1920x1080 \\ -ab 128k \\ -maxrate 2048k \\ -bufsize 2048k \\ -vf "drawbox=0:0:1920:100:black:fill, drawtext='fontfile=Arial\\:style=Bold Italic:text=Now (...)
• 12:00
  How to encode jpeg images to H264 very fast (transform images to video) - Paul Newest 'ffmpeg' Questions - Stack Overflow
  I have 30 JPEG images (.jpg) at a resolution of 480 x 640. Each image takes aboout 20KB (all of them takes about 600KB). I am using FFmpeg command to encode these images into a video in H264 format. I need this to be done very fast - about 1 second. Using the classic command: ffmpeg -y -f image2 -r 1/5 -i image_%d.jpg -c:v libx264 -r 30 video.mp4 takes about 90 seconds. After adding -preset ultrafast: ffmpeg -y -f image2 -r 1/5 -i image_%d.jpg -c:v libx264 -preset ultrafast -r 30 video.mp4 the encoding takes about 15 seconds which is much better, but still not enough I've tried (...)
• 11:46
  FFmpeg : do not terminate script using loop - Punit Gajjar Newest 'ffmpeg' Questions - Stack Overflow
  I have a collection of a few video URLs, and what I am trying to do is add a watermark to all the videos using a for loop, in a laravel inside the loop, this is my FFmpeg code. shell_exec('ffmpeg -y -i MY_VIDEO_PATH_HERE -i WATER_MARK_IMAGE_URL -filter_complex "overlay=18:H-h-30" -strict -2 -codec:a copy "MY_PATH_TO_STORE_VIDEO"'); All this code is done using a queue/job from the laravel. My Problem is, If the above command is getting failed and not able to add the watermark it does not move the next video to start adding the watermark, instead of it terminate the process and try to (...)
• 10:44
  ffmpeg ERROR: libnpp not found in windows - Gio Newest 'ffmpeg' Questions - Stack Overflow
  I`m trying to compile ffmpeg in windows with nvidia libraries for hardware acceleration using MinGW/msys. tried to follow the instruction on nvidias website (section: Getting Started with FFmpeg/libav using NVIDIA GPUs). configured with --enable-nonfree --disable-shared --enable-nvenc --enable-cuda --enable-cuvid --enable-libnpp --extra-cflags=-Ilocal/include --extra-cflags=-I../common/inc --extra-ldflags=-L../common/lib/x64 --prefix=ffmpeg but stopped at "ERROR: libnpp not found." where common folder is downloaded from NVIDIA Video Codec SDK but there is no npp libs or header files. is (...) -- nvidias website, NVIDIA Video Codec SDK
• 10:15
  How can I apply zoom in/out filter on specific frame in video using ffmpeg? - Axita Kathiriya Newest 'ffmpeg' Questions - Stack Overflow
  I want to apply zoom filter on specific frame on video using ffmpeg. for example, I want to make a slideshow of 5 images and each image will take 4-5 seconds for slide. I want zoom in/out effect on each image. So, i want to apply this effect at that time when particular image stay for 4-5 seconds. Please see this video link. I want same result like this using ffmpeg: https://youtu.be/nNTiyRDhlRY please refer first two slides of this link. -- https://youtu.be/nNTiyRDhlRY
• 09:14
  how to convert a video to wmv3 format on linux - Dan Erez Newest 'ffmpeg' Questions - Stack Overflow
  I am looking for a way to convert a video from any format ( specifically mp4 if it matters ) to wmv3. I'll save you some time - ffmpeg can only read wmv3 and can't write it. There's a patch but it's from 2007 and I don't feel comfortable to rely on it. Unless someone has experience of it working and can vouch for it. common names for the same format = Windows Media Video v9, wmv9, wmv3, msmpeg4 v3, asf
• 09:06
  Does ffmpeg support 7.x channels encoding in Dolby Digital format (.ac3)? - CC2023 Newest 'ffmpeg' Questions - Stack Overflow
  Using ffmpeg, I was able to encode 5.x channels from .wav to .ac3. But 7.x channels did not work. The encoded .ac3 missed channel 6th and 7th. Does ffmpeg support 7.x channel encoding for .ac3? My ffmpeg version git-2019-10-28-68f623d. Thanks.
• 06:49
  ffmpeg encoding for 3.0 and 3.1 channels in Dolby Digital format (.ac3) - CC2023 Newest 'ffmpeg' Questions - Stack Overflow
  I was able to encode .wav to .ac3 (Dolby Digital) via.zz ffmpeg for channel 2.0, 2.1, 4.0, 4.1, 5.0, 5.1, but not channel 3.0 and 3.1. When I played back .ac3 files on Onkyo 7.2 receiver, error on channel 3.0 and 3.1 was: 3.0 channels: right channel ok left channel ok center channel played back at subwoofer 3.1 channels: right channel ok left channel ok lfe channel ok center channel played back at surround left speaker (sL) This is command I used: ffmpeg -i 3_channel.wav -c:a ac3 3_channel.ac3 ffmpeg -i 3_1_channel.wav -c:a ac3 3_1_channel.ac3 My ffmpeg version (...)
• 04:27
  Why does ffmpeg show a corrupted video when receiving stream in MPEG TS format? - Carlo Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to stream a CCTV footage using RTP/MPEGTS. I can properly view it in vlc using the following command(I'm using windows 10): vlc --demux ts rtp://239.194.115.71:5000 The problem arises when I tried to receive and play it in ffmpeg using the following command: ffplay -f mpegts rtp://239.194.115.71:5000 I'm getting a semi decent video for the first 5 seconds: After 5 seconds the video gets droopy and corrupted (note that the top part of the video seems to be unaffected) Compete logs can be found here: https://pastebin.com/7CvbFsQK This is some of the logs from ffmpeg: (...) -- https://pastebin.com/7CvbFsQK, https://drive.google.com/open?id=1zppjXVgEcL8Ws-xP3e1J7NJF1UGdPzMA
• 03:56
  How to extract a sequence of frames with ffmpeg and get it with subprocess.Popen - Core taxxe Newest 'ffmpeg' Questions - Stack Overflow
  Since reading single frames is kinda slow , i tried to extract multiple frames at once. Now i got the Problem that ffmpeg does not return a list but a bunch of bytes. os : win10 python version 3.7.4 ffmpeg extracting frames from mp4 command = [self.FFMPEG_BINARY, '-loglevel', 'fatal', '-ss', str(datetime.timedelta(seconds=frame_index / self._fps)), '-i', os.path.join(self._path, self._filename), '-threads', str(self.THREAD_NUM), '-vf', 'scale=%d:%d' % (self._resolution[0], self._resolution[1]), '-vframes', str(num_frames), '-f', 'image2pipe', '-pix_fmt', 'rgb24', '-vcodec', 'rawvideo', (...)
• 00:52
  ffmpeg convert variable framerate .webm to constant framerate video - Dashadower Newest 'ffmpeg' Questions - Stack Overflow
  I have a .webm file of a recording of a game at 16fps. However, upon trying to process the video with OpenCV, it seems the video is recorded with a variable framerate, so when I try to use OpenCV to get a frame every second by getting the every 16th frame, it won't work since the video stream will end prematurely. Therefore, I'm trying to convert a variable-frame .webm video, which claims it has a framerate of 16 fps, to a video with a constant frame, so I can extract one frame for every second. I've tried the following ffmpeg command from (...) -- https://ffmpeg.zeranoe.com/forum/viewtopic.php?t=5518

3 November

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:32
  FFmpeg commands using JavaCV - Martin Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use the JavaCv library to invoke ffmpeg commands on image an audio files to create create videos within an Android app. Is there any way to send the commands as a String using this library? The JavaCV library is absolutely required for other operations were doing, so I need to be able to leverage it.
• 21:18
  How to get the information of bit-rate from YouTube videos? - Ashutosh Singla Newest 'ffmpeg' Questions - Stack Overflow
  I was using YouTube videos for my test and I was wondering how can I get the information of bit-rate of the played video? I used 2 methods to know the information about the bit-rate but didn't get any information. 1. Right-click on a video and choose "Stats for nerds". 2. ffmpeg -i input_video -f ffmetadata metadata.txt I don't know if by doing the right click on the video and then properties, then details would give me the correct way of showing the bit-rate. Any (...)
• 21:08
  FFMPEG with NVENC and DVB Subtitles and Overlay option - Sambir Newest 'ffmpeg' Questions - Stack Overflow
  Hi I have some questions regarding NVENC, DVB subs and overlay feature. I managed to burn dvb subtitles to the input video but I noticed that this cannot be performed fully on the GPU because I am using the Overlay feature of FFMPEG which is only possible with software. Current code Scales the subtitles to 1920x1080 before applying the overlay. I noticed that this uses more CPU than just overlaying the subtitles directly over the video. The problem is that I want to overlay the subtitles in the center bottom. Current code centers the subtitles in the center of the screen (kinda (...)
• 19:18
  FFmpeg raw video size parameter - Yanick Salzmann Newest 'ffmpeg' Questions - Stack Overflow
  I am using libavformat in my library to read a stream of raw i420 images and transform them into an mp4 video. I've found CLI commands that perform this but since I am using the library in my program I need to reconstruct the same thing. Currently the code that is having a problem is looking like this: const auto raw_format = av_find_input_format("rawvideo"); if (raw_format == nullptr) log->error("Could not find RAW input parser in FFmpeg"); throw std::runtime_error("RAW not found"); _format_context->pb = _io_context.get(); AVDictionary *input_options = nullptr; (...)
• 18:14
  Howto extract blackframes and volumes info from video at the same time with ffmpeg/ffprobe - Alexander Kislitsky Newest 'ffmpeg' Questions - Stack Overflow
  I'm extracting astats info with: ffprobe -f lavfi -i "amovie=video.flv,astats=metadata=1:reset=1" -show_entries frame=pkt_pts_time:frame_tags -print_format json Blackframes info with: ffprobe -f lavfi -i "movie=video.flv,blackframe=1" -show_entries frame=pkt_pts_time:frame_tags -print_format json But when I'm trying to combine filters like this: ffprobe -f lavfi -i "amovie=video.flv,astats=metadata=1:reset=1;movie=video.flv,blackframe=1" -show_entries frame=pkt_pts_time:frame_tags -print_format json I've the following error: Invalid filterchain containing an unlabelled output pad: (...)

Revisions : recommander (plugin SPIP) http://zone.spip.org/trac/spip-zone/log/_plugins_/recommander

• 16:34
  Revision 118399: paquet.xml et plugin.xml doivent avoir le même numéro de version car ... - spip.franckⓐ… Revisions : recommander (plugin SPIP)
  paquet.xml et plugin.xml doivent avoir le même numéro de version car il s'agit du même plug, j'en profite pour monter la version de nospam car il n'y a pas eu de changement de "x" https://zone.spip.org/trac/spip-zone/changeset/118075/spip-zone -- Log

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 15:26
  Input one image to video with ffmpeg - Hòa Hưng Ngô Newest 'ffmpeg' Questions - Stack Overflow
  Please help me. I want to create a video with ffmpeg from one image in a folder but the image name will be changed if the script run completed. Please help me get an image after run the script. Thank all.
• 15:18
  Process substitution error : Impossible to open /dev/fd/11: No such file or directory - theonlygusti Newest 'ffmpeg' Questions - Stack Overflow
  My shell is zsh 5.7.1 (x86_64-apple-darwin18.2.0). I am on macOS Catalina 10.15. I just tried to run ffmpeg -f concat -i But got this error (from ffmpeg) Impossible to open '/dev/fd/_-cyshqII4UOw.webm' /dev/fd/11: No such file or directory Creating a file myself works for i in 1..6; do printf "file '%s'\\n" '_-cyshqII4UOw.webm' >> files.txt; done ffmpeg -f concat -i files.txt everyne.mp4 Why doesn't the process substitution method work? And how can I ensure it works next (...)
• 15:08
  ffmpeg scaling nvenc maintaining aspect ratio - Sambir Newest 'ffmpeg' Questions - Stack Overflow
  I want to fully hw transcode mkv files to mp4 and up- /downscale the content maintaning the aspect ratio. With CPU based transcoding you just add: scale=1920:1080:force_original_aspect_ratio=decrease With HW (CUDA) transcoding either -resize on Decoding side or -scale_npp on encoding side is possible but both dont seem to be capable to force original acpect ratio. I want to for instance upscale 1920x800 file to 1920x1080 while filling the rest with black bars so I can overlay subtitles over the bars for instance... With this i can fully transcoding using GPU power reather than (...)
• 13:52
  What are those bars in audio visualizer exactly? Need to make visualizer with help of ffmpeg - Soroosh Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to understand what are those bars in audio visualizers exactly. I tried to decode a mp3 file using ffmpeg like this: ffmpeg -i music.mp3 -t 1 -f s8 -acodec pcm_s8 -ar 1 out_1sec_sr1.raw The output of this command is raw data of first second of the music.mp3 in 1hz samplerate. But the output file contains just 2 bytes!!! one for the left channel and one for the right channel. I'm pretty sure that it is not possible to visualize a second of a music using only two bytes. I guess each bar in below picture is at least one byte. Am I missing something in ffmpeg command? Is pcm_s8 (...) -- , https://github.com/brarcher/ffmpeg-android-java
• 12:18
  Encode videos using Nodejs + ffmpeg or handbrake - sebastiannm Newest 'ffmpeg' Questions - Stack Overflow
  I have been looking for a way to encode multiple videos simultaneously from NodeJS but I haven't find a good solution for it yet. Using FFMPEG I never get a 100% fail free response. There is always a broken video. OS: Ubuntu 12.04 size = "#options.maxWidthx#options.maxHeight" proc = new ffmpeg( source: options.input ).withVideoCodec(options.encoder).withSize(size).keepPixelAspect(true).withStrictExperimental() proc.onProgress (progress) -> console.log "progress: " + progress.percent proc.saveToFile options.output, (stdout, stderr) -> console.log "file has been converted (...)
• 10:23
  transcoding file in cloud function saves only one chunk and fires end event - Rehan Newest 'ffmpeg' Questions - Stack Overflow
  I've written this cloud function which transcodes a MOV file to MP4 but after function runs I only see saved video 1.3kb or something but everything runs smoothly not sure what's happening. I don't see any errors generated in console but I'm sure I'm doing something wrong in code, below is the function: const storage = require('ⓐgoogle-cloud/storage')(); const ffmpegPath = require('ⓐffmpeg-installer/ffmpeg').path; const ffmpeg = require('fluent-ffmpeg'); ffmpeg.setFfmpegPath(ffmpegPath); exports.vsTranscodeVideo = (req, res) => const fileName = req.body.filename; const userBucket = (...)
• 09:48
  Get Timecode from MP4 generated in Adobe Premiere / Encoder in Python and FFMPEG - russellaugust Newest 'ffmpeg' Questions - Stack Overflow
  I'm writing a script that needs to either convert or re-container an MP4 as an MOV with timecode. I have an MP4 generated from Adobe Premiere. If I bring that file back into Premiere, I have timecode. I can see it so I know it is there. I can't seem to extract the timecode track from the MP4. I've looked everywhere online and found some discussions around it, but no actual success in extracting the timecode. I've been using ffprobe to see if there's any mention of the timecode in the MP4, but having no luck. I've tried PyMediaInfo with no success. Here's what ffprobe shows: ffprobe (...) -- https://www.dropbox.com/s/a1euiumiapkpzhn/timecode_demo.mp4?dl=0, https://www.dropbox.com/s/pafqicnnsqu93rl/timecode_window_in_premiere.png
• 08:07
  Read Per-Frame Timecode with FFMPEG? - DiB Newest 'ffmpeg' Questions - Stack Overflow
  I want to read a per-frame timecode out of a video file using libav (FFMPEG). I've started by digging into FFProbe. Using this as a starting point for my code, I can get to the AVStream that has the timecode in it. From there, I can use the dictionary to look at the stream's metadata. int show_stream(WriterContext *w, AVFormatContext *fmt_ctx, int stream_idx, InputStream *ist, int in_program) AVStream *stream = ist->st; ... auto tcr = av_dict_get(stream->metadata, "timecode", NULL, 0); std::cerr value nb_frames The time code is the correct one that was embedded into the video. The (...)

Revisions : blueimp/jQuery-File-Upload - GitHub https://github.com/blueimp/jQuery-File-Upload

• 05:19
  10.3.0 - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub
  10.3.0
• 05:13
  Only unbind the original event handler. - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub
  Only unbind the original event handler.
• 05:12
  Wait until all downloads have been toggled. - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub
  Wait until all downloads have been toggled.

Newest 'x264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/x264

• 03:53
  Where is the initialization of motion vector in source code? - Alex Newest 'x264' Questions - Stack Overflow
  In IMPROVED RATE CONTROL AND MOTION ESTIMATION FOR H.264 ENCODER this paper introduce initialize with extra motion vector. I would like to try some other initialization methods, but I can not find where the initialization code realized. In encoder/me.c I can only find the function which uses mvc. But for where mv is initialized, I am get confused with the code.

Revisions : blueimp/jQuery-File-Upload - GitHub https://github.com/blueimp/jQuery-File-Upload

• 02:24
  Add GitHub Sponsors config. - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub
  Add GitHub Sponsors config.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 00:43
  ffmpeg hwmap SW decoded frame to OpenCL and hwmap back to h264 for SW encode - Oleksandr Kyrpa Newest 'ffmpeg' Questions - Stack Overflow
  I trying speed up process and avoid copy frames between GPU and CPU. But got error: "Segmentation fault: 11", so may be I'm doing something wrong? My full ffmpeg command and log here: ./ffmpeg -i ../720.mp4 -init_hw_device opencl=ocl:0.1 -filter_hw_device ocl -filter_complex "hwmap,avgblur_opencl=30,hwmap" -c:v h264 -an -t 10 -y ../out_blur.mp4 -loglevel debug Output: ./ffmpeg -i ../720.mp4 -init_hw_device opencl=ocl:0.1 -filter_hw_device ocl -filter_complex "hwmap,avgblur_opencl=30,hwmap" -c:v h264 -an -t 10 -y ../out_blur.mp4 -loglevel debug ffmpeg version N-95621-g53c21c2d6b (...)

2 November

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 18:41
  avutil/frame: fix remove_side_data - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  avutil/frame: fix remove_side_data remove_side_data is supposed to remove a single instance by design. Since new_side_data() doesn't forbid add multiple instances of the same type, remove_side_data should deal with that. Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] libavutil/frame.c [DH] libavutil/frame.h
• 15:46
  lavf/dashenc: enable probesize/max_analyze_duration setting in sub-demuxer - Jun Zhao git.videolan.org Git - ffmpeg.git/rss log
  lavf/dashenc: enable probesize/max_analyze_duration setting in sub-demuxer Enable probesize/max_analyze_duration setting when open the sub-demuxer, it's will be used to minimizing the initial delay. Signed-off-by: Jun Zhao <barryjzhaoⓐtencent.com> [DH] libavformat/dashdec.c
• 12:59
  lavf/flvenc: Cosmetics: fix indentation - Jun Zhao git.videolan.org Git - ffmpeg.git/rss log
  lavf/flvenc: Cosmetics: fix indentation fix indentation Signed-off-by: Jun Zhao <barryjzhaoⓐtencent.com> [DH] libavformat/flvenc.c
• 12:48
  lavf/hls: support probesize/max_analyze_duration when open sub-demuxer - Jun Zhao git.videolan.org Git - ffmpeg.git/rss log
  lavf/hls: support probesize/max_analyze_duration when open sub-demuxer Add probesize/max_analyze_duration support when open the sub-demuxer, it's will be used to minimizing the initial delay. Signed-off-by: Jun Zhao <barryjzhaoⓐtencent.com> [DH] libavformat/hls.c
• 17:20
  avcodec/libvpxenc: only allocate alpha U/V planes on size changes - Marton Balint git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libvpxenc: only allocate alpha U/V planes on size changes Signed-off-by: Marton Balint <cusⓐpasswd.hu> Signed-off-by: James Zern <jzernⓐgoogle.com> [DH] libavcodec/libvpxenc.c
• 16:47
  tools/enum_options: replace the deprecated API - Zhong Li git.videolan.org Git - ffmpeg.git/rss log
  tools/enum_options: replace the deprecated API Signed-off-by: Zhong Li <zhongli_devⓐ126.com> [DH] tools/enum_options.c
• 16:47
  tools/probetest: replace the deprecated API - Zhong Li git.videolan.org Git - ffmpeg.git/rss log
  tools/probetest: replace the deprecated API Signed-off-by: Zhong Li <zhongli_devⓐ126.com> [DH] tools/probetest.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:02
  How can I get ffmpeg to stream my webcam? - nonlinearmind Newest 'ffmpeg' Questions - Stack Overflow
  I want to stream my webcam and managed to stream it successfully to bambuser.com using the following, but need to be able to view it locally. This successfully posts it to babuser: ffmpeg -v debug -f alsa -ac 1 -i hw:1,0 -acodec libmp3lame -itsoffset 00:00:00 -f video4linux2 -s 360x240 -i /dev/video0 -r 15 -f flv -ar 44100 rtmp://522f4133d0.fme.bambuser.com/b-fme/0bacf5bb634dbbbd52bdd99d71406dc6f362c I've tried the following, but get "RTMP_Connect0, failed to connect socket. 111 (Connection refused) rtmp://localhost:8090/: Operation not permitted" ffmpeg -v debug -f alsa -ac 1 -i hw:1,0 (...)
• 19:52
  How can I understand or read ffmpeg's source code? Where can I get the knowledge for it? [closed] - Harsh Sinha Newest 'ffmpeg' Questions - Stack Overflow
  I was thinking to edit ffmpeg's source code but can't understand how is it written or how is it runned. How can understand it and use it for my program. https://github.com/FFmpeg/FFmpeg -- https://github.com/FFmpeg/FFmpeg

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

• 09:40
  Revision 118374: pipeline formulaire_verifier : ne pas presupposer qu'il y a des ... - maieulⓐ… Revisions : saisies
  pipeline formulaire_verifier : ne pas presupposer qu'il y a des erreurs (warning php) -- Log
• 09:40
  Revision 118373: retour ligne - maieulⓐ… Revisions : saisies
  retour ligne -- Log

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 19:00
  I am trying understand ffmpeg's source code - Harsh Sinha Newest 'ffmpeg' Questions - Stack Overflow
  I was thinking to edit ffmpeg's source code but can't understand where is rhe made or where is the end and start. Is there any way I can understand the folder structure?
• 16:53
  How can I extract a good quality JPEG image from an H264 video file with ffmpeg? - Daniel Gartmann Newest 'ffmpeg' Questions - Stack Overflow
  Currently I am using this command to extract the images: ffmpeg.exe -i 10fps.h264 -r 10 -f image2 10fps.h264_%03d.jpeg But how can I improve the JPEG image quality?
• 16:46
  send live video using javascript - andres1415 Newest 'ffmpeg' Questions - Stack Overflow
  i need to send a live streaming from pc to pc , both of them using just the web browser (IE, firefox o chrome), exist a library (javascript) that could help me to push the stream from the sender to the media server (ffmpeg-ffserver, wowza, etc).
• 15:38
  FFmpeg error: Unable to find a suitable output format for '' - Benjamin Basmaci Newest 'ffmpeg' Questions - Stack Overflow
  im new to ffmpeg as well as android programming. Im trying to load a video from a URL and crop it with ffmpeg. I want to save that video to a file. This is the command I found online: "-i " + videoUrl + "-filter:v crop=240:120:100:100 -c:a copy test.mp4" I have tried it and got the error Unable to find a suitable output format for '' So I tried to narrow the possible cause down and tried these commands as well: "-i " + videoUrl + " -c:v copy -c:a copy test.mp4" "-i " + videoUrl + " -c:v copy test.mp4" "-i " + videoUrl + " -c:a copy test.mp4" "-i " + videoUrl + " test.mp4" So with that (...)
• 13:24
  Repairing missing parts of ffmpeg - porkwarrior Newest 'ffmpeg' Questions - Stack Overflow
  How would i go about repairing my ffmpeg - I tried to delete it. But I do not think I deleted everything, tried to make a new install. But whenever I try to write ffmpeg in terminal, nothing shows up.. Tried to install new versions bash: ffmpeg: command not found
• 11:25
  ffmpeg background worker runs in debug but not in application - Purgitoria Newest 'ffmpeg' Questions - Stack Overflow
  My application has a function of taking captured images and using an FFmpeg background worker to stitch these into a time-lapse video. The GUI has some simple options for video quality and for the source folder and output file. I had an older version of my application written in VB.NET and that worked without issue but I am rewriting in C# as it supports additional capture and filter capability in the image processing but am having real trouble figuring out what is wrong with this function. I have tried relocating FFmpeg to different locations just in case it was a permissions issue but (...)
• 11:02
  How to check if a .mp4 file is not corrupt and not missing movie frames or audio segments programmatically - forgodsakehold Newest 'ffmpeg' Questions - Stack Overflow
  With youtube-dl I was able to download quite a couple of .mp4 files. However, I have just discovered, after manually playing some of them, that they are missing movie frames in some parts while still playing audio (so a blank screen is shown), or missing audio while still playing movie frames. Hence, (1) Why doesn't youtube-dl detect or warn against such a scenario? It looks like the movie segments and audio track were merged and .mp4 produced without any warning. Is there a way to configure youtube-dl to detect such cases and redownload the movie? (2) Otherwise, are there other ways to (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 09:58
  Documentation #4338: job / effacer les caches périmés - jluc - Revisions : SPIP
  Tiens, les fichiers local/cache-css aussi semblent stockés ad aeternam et pourraient être nettoyés de temps en temps. Par exemple ça pourrait se faire lors d'un upgrade de spip.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 09:20
  How to darken overlay background with ffmpeg? - Kartik Garasia Newest 'ffmpeg' Questions - Stack Overflow
  How can I darken the background video in a single line? I have 2 input streams frame%d.png (series of images frame1.png, frame2.png...) bg.mp4 Currently, I can overlay and scale with the following command, "-i" ,frame%d.png, "-i", bg.mp4,"-r", "30","-filter_complex","scale2ref[a][b];[b][a]overlay", output.mp4 but before merge these 2 inputs I want to darken the background. This is what I have tried ffmpeg -i chunk%d.png -i bg.mp4 -filter_complex "scale2ref[a][b];[b][a]overlay,[1:v]eq='brightness=-0.05'" -y t3.mp4 But it resulting in the same merged video without darkening (...)
• 07:20
  ffmpeg hls_time option is not working with h264_nvenc - viet1pro Newest 'ffmpeg' Questions - Stack Overflow
  I want splitting video into HLS slice using -hls_time, but only -codec copy can use this. I have tried adding key frame like this but still can't use force_key_frames expr:"gte(t,n_forced*1)" This is code that can use -hls_time ffmpeg -i "/content/test.mp4" -codec copy -hls_list_size 0 -hls_time 6 /content/'480p.m3u8' And this is code that -hls_time not work ffmpeg -vsync 0 -hwaccel cuvid -i "/content/test.mp4" -c:a copy -c:v h264_nvenc -gpu 0 -b:v 1400000 -force_key_frames expr:"gte(t,n_forced*1)" -hls_time 6 -s 848x480 (...)
• 00:40
  FFMPEG NVENC HEVC to H264 - Sambir Newest 'ffmpeg' Questions - Stack Overflow
  I try to transcode a HEVC 4k broadcast down to 1080p H264. HEVC 4K to HEVC 1080p works but when I try hevc to h264 i get "No NVENC capable devices found" Now I am wondering is it not possible to fully hw transcode HEVC to H264? Code used: ffmpeg -timeout 10000000 -reconnect 1 -reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 2 -hwaccel_device 0 -hwaccel cuvid -vcodec hevc_cuvid -resize 1920x1080 -i 'http://inputstream' -max_muxing_queue_size 1024 -map 0:0 -map 0:2 -acodec libfdk_aac -b:a 96k -c:v h264_nvenc -gpu 0 -preset llhq -profile high -rc:v vbr -qmin:v 26 -qmax:v 32 (...)

1 November

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 10:02
  avformat/nutenc: Do not pass NULL to memcmp() in get_needed_flags() - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avformat/nutenc: Do not pass NULL to memcmp() in get_needed_flags() This compared to the other suggestions is cleaner and easier to understand keeping the condition in the if() simple. This affects alot of fate tests. See: [FFmpeg-devel] [PATCH 05/11] avformat/nutenc: Don't pass NULL to memcmp See: [FFmpeg-devel] [PATCH]lavf/nutenc: Do not call memcmp() with NULL argument Fixes: Ticket 7980 Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] (...)
• 23:18
  avformat/Makefile: add missing pcm dependency to sdx demuxer - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avformat/Makefile: add missing pcm dependency to sdx demuxer Signed-off-by: Lou Logan <louⓐlrcd.com> Signed-off-by: Carl Eugen Hoyos <ceffmpegⓐgmail.com> [DH] libavformat/Makefile
• 23:14
  avformat/Makefile: add missing pcm dependency to nsp demuxer - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avformat/Makefile: add missing pcm dependency to nsp demuxer Signed-off-by: Lou Logan <louⓐlrcd.com> Signed-off-by: Carl Eugen Hoyos <ceffmpegⓐgmail.com> [DH] libavformat/Makefile
• 22:57
  avformat/Makefile: add missing pcm dependency to hcom demuxer - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  avformat/Makefile: add missing pcm dependency to hcom demuxer Signed-off-by: Lou Logan <louⓐlrcd.com> Signed-off-by: Carl Eugen Hoyos <ceffmpegⓐgmail.com> [DH] libavformat/Makefile
• 22:50
  configure: select riffdec for act demuxer - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select riffdec for act demuxer Signed-off-by: Lou Logan <louⓐlrcd.com> Signed-off-by: Carl Eugen Hoyos <ceffmpegⓐgmail.com> [DH] configure
• 22:35
  configure: select jpegtables for rtp muxer - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: select jpegtables for rtp muxer Signed-off-by: Lou Logan <louⓐlrcd.com> Signed-off-by: Carl Eugen Hoyos <ceffmpegⓐgmail.com> [DH] configure

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:33
  Is there a command to extract frames from a video to a txt file (binary or string) using ffmpeg? - Core taxxe Newest 'ffmpeg' Questions - Stack Overflow
  How can you extract the frames from a video into a txt (or other) file with ffmpeg? OS: Windows 10 64x Language : Python Tried extracting the frames as images but this is to slow (extracting and writing toi a single txt file)
• 20:21
  Converting to HLS VS MPEGTS - theva Newest 'ffmpeg' Questions - Stack Overflow
  I am creating streamable audio by using ffmpeg like this: ffmpeg -i test.mp3 -vn -ac 2 -acodec aac -f segment -segment_format mpegts -segment_time 10 -segment_list playlist.m3u8 playlist-%05d.ts My goal was to create content in the HLS format and it seems to work (it is playable by hls.js). I just wonder about the segment_format which is mpegts, is that correct? By reading the answer here mpegts seems to be a different format than HLS. Which is it? The ffmpeg script above is generating .ts-files for the chunks and an .m3u8-file for the playlist. Is it possible to play this playlist on (...) -- here
• 21:29
  How to setup FFMPEGInterop to Use DRM playready - marinamovies32 Newest 'ffmpeg' Questions - Stack Overflow
  I am using FFMPEGInterop class to play UWP video. I need to play it with playready setup but am running into issues. I can play playready with just mediaplayerelement and creating the protection manager, but when I create a FFMPEGMSS to stream it, than it fails. Says value is out of range when adding the protection manager to the MediaStreamSource. var StreamSource = FFmpegMSS.GetMediaStreamSource(); var protectionManager = new Windows.Media.Protection.MediaProtectionManager(); Windows.Foundation.Collections.PropertySet cpSystems = new Windows.Foundation.Collections.PropertySet(); (...)
• 21:22
  Implement a simple MPEG-TS muxer using ffmpeg-lib - Pierre P. Newest 'ffmpeg' Questions - Stack Overflow
  I have an application that records raw audio data in LPCM stored in a buffer. I would like to encapsulate the data in a transport stream and send that transport stream through UDP to a stream segmenter (according to HTTP Live Streaming specifications) on another host. FFmpeg provides a command-line utility to do so but with a file as input ffmpeg -re -i output.aac -acodec copy -f mpegts udp://127.0.0.1:5555. My first thought was to use FFmpeg API, especially the libavformat library. Does libavformat provide a muxer that I could use to encapsulate my audio in LPCM into a transport stream (...) -- https://github.com/FFmpeg/FFmpeg/blob/master/libavformat/mpegts.c
• 19:24
  Crop video random with time variables (t) with ffmpeg? - rinofcan Newest 'ffmpeg' Questions - Stack Overflow
  I want to crop video with x and y coordinates that change with time (t) or frame (n). Which mathematical expression should I use I used: crop=in_w/2:in_h/2:(in_w-out_w)/2+((in_w-out_w)/2)*sin(t*10):(in_h-out_h)/2 +((in_h-out_h)/2)*sin(t*13)" but it only changes diagonally
• 17:09
  FFmpeg doesn't work on android 10, goes strait to onFailure(String message) with empty message - nolanic Newest 'ffmpeg' Questions - Stack Overflow
  I'm using FFmpeg in one of my projects for video compression. On Android 10 (Google Pixel 3a), it goes straight to onFailure(String message) with empty message for any command sent for execution. so I have (api 'com.writingminds:FFmpegAndroid:0.3.2') specified in my app gradle file, permission (android.permission.WRITE_EXTERNAL_STORAGE) in the manifest is specified So I do: InitializationCallback initializationCallback = new InitializationCallback(); try FFmpeg.getInstance(context).loadBinary(initializationCallback); catch (FFmpegNotSupportedException e) (...)
• 16:37
  FFMPEG - filter_complex lut file path giving problems on Windows - Taapo Newest 'ffmpeg' Questions - Stack Overflow
  I'm applying a 3D to a Prores file - and when placed in the same directory as where I execute the ffmpeg command - all is working fine (multiline format for readability): ffmpeg.exe -loglevel warning -i "E:\\path\\P1200226.MOV" -i "c:\\path\\watermark.png" -filter_complex "[0:v]scale="1280x720", overlay=W-w-5:H-h-5/2, lut3d=file=VLog_to_V709_forV35_ver100.cube, format=pix_fmts=yuv420p" -codec:a copy -codec:v prores -profile:v 0 But when I try to set a drive and pathname for the Lut file, things go wrong. I tried several formats: lut3d=file=c:\\path\\VLog_to_V709_forV35_ver100.cube, (...)
• 15:43
  OCI runtime exec failed: exec failed: (...) executable file not found in $PATH": unknown - Uğur Kaya Newest 'ffmpeg' Questions - Stack Overflow
  I have dockerized an app which has ffmpeg installed in it via libav-tools. The app launches without problem, yet the problem occured when fluent-ffmpeg npm module tried to execute ffmpeg command, which was not found. When I wanted to check the version of the ffmpeg and the linux distro set up in the image, I used sudo docker exec -it c44f29d30753 "lsb_release -a" command, but it gave the following error: OCI runtime exec failed: exec failed: container_linux.go:296: starting container process caused "exec: \\"lsb_release -a\\": executable file not found in $PATH": unknown Then I realized (...)
• 15:02
  How can i mux H264 stream into MP4 file via libavformat - Brian Newest 'ffmpeg' Questions - Stack Overflow
  I want to realize an application that firstly decode a multi-media file(such as test.mp4 file, video codec id is H264), get a video stream and an audio stream, then make some different in the audio stream, at last encode the video stream(use libx264) and audio stream into a result file(result.mp4). To promote the efficiency, i omitted the decode and encode of video stream, i get the video packet via function "av_read_frame", then output it directly into the result file via function "av_write_frame". But there is no picture in the output file, and the size of output file is fairly small. (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 09:51
  avcodec/libtwolame: fix mono default bitrate - James Cowgill git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libtwolame: fix mono default bitrate As of libtwolame 0.4.0, 384 kbps is not accepted as a valid bitrate for encoding mono audio and the maximum bitrate is now halved to 192 kbps to comply with the MP2 standard. Example error: twolame_init_params(): 384kbps is an invalid bitrate for mono encoding. Adjust the default bitrate calculation to take this into account. Signed-off-by: James Cowgill <jcowgillⓐdebian.org> [DH] libavcodec/libtwolame.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 11:32
  using ffmpeg.js to play H265 video, only play hvc1 format, can't play hev1 format, is there anyway to play hev1? - Alex Newest 'ffmpeg' Questions - Stack Overflow
  I compiled ffmpeg into ffmpeg.js and ffmpeg.wasm by using emscripten, so that it can run in the browser and play H265 video. However, I found that only the hvc1 format can be played. Like that： Stream #0:0(und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bt709, progressive), 1280x720, 854 kb/s, 25 fps, 25 tbr, 12800 tbn, 25 tbc (default) and the hev1 format cannot be played.Like that: Stream #0:0(und): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 829 kb/s, 25 fps, 25 tbr, 12800 tbn, 25 tbc (default) Web browser's Console has (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 09:42
  doc/filters: fix overlay_opencl document typo - Steven Liu git.videolan.org Git - ffmpeg.git/rss log
  doc/filters: fix overlay_opencl document typo Reported-by: Yabo Wei <weiyaboⓐkuaishou.com> Signed-off-by: Steven Liu <lqⓐchinaffmpeg.org> [DH] doc/filters.texi

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 07:24
  How to convert scte 128 closed caption data to a53 closed caption data ffmpeg? - sagar patel Newest 'ffmpeg' Questions - Stack Overflow
  I have decoder which is not supported for scte 128 caption, Only support scte a53 caption data.I want to convert scte 128 caption data to scte a53 caption data. If any idea or logic to convert scte 128 to a53 caption in ffmpeg. Currently ffmpeg only support scte a53 caption data.I want add support to convert scte 128 data to a53 caption data in ffmpeg.
• 06:01
  View MPEG-TS stream in browser - alexenv Newest 'ffmpeg' Questions - Stack Overflow
  I want to create a webpage with a video player that can play a H264 mpeg-ts live stream. I can't find any web player that can do that. I read that JWPlayer is capable of doing that, but only in the paid version. The stream can be played in VLC and any other players. What can I do? I tried using ffmpeg to convert the stream to something more useful, but no succes. ffmpeg -i "http://localhost:9002/tv.ts" -vcodec libx264 -r 20 -s 320x240 -threads 2 -vprofile baseline -vpre zoom -strict experimental -acodec aac -ab 96000 -ar 48000 -ac 1 -f rtsp rtsp://192.168.0.28:1935/live/_definst_/c3 (...)
• 05:53
  Using ffmpeg, I'm trying to mute all 5.1 channels of audio for a period of time within a video - cozmonaut Newest 'ffmpeg' Questions - Stack Overflow
  I'm wanting to mute audio for a portion of a video clip while keeping the video exactly as it is. I came across this online. ffmpeg -i ~/Downloads/in.mov -vcodec copy -af "volume=enable='between(t,0,3)':volume=0" ~/Downloads/out2.mov Although it works, it converts the 5.1 audio to stereo. Isn't it possible to mute the first 3 seconds of all 5.1 channels of audio, while keeping the 5.1 channels intact within the finished output video file? Here are the specs on my video/audio clip: Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x720 [SAR 1:1 (...)
• 02:50
  Library not loaded error and Abort trap: 6 when using ffmpeg - bruno Newest 'ffmpeg' Questions - Stack Overflow
  After updating my mac to high sierra, I can't use ffmpeg $ ffmpeg dyld: Library not loaded: /opt/local/lib/libidn2.0.dylib Referenced from: /opt/local/lib/libgnutls.30.dylib Reason: image not found Abort trap: 6 I appreciate any help!

31 October

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 13:30
  avformat/mxfdec: cleanup on "essence prior to first PartitionPack" - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avformat/mxfdec: cleanup on "essence prior to first PartitionPack" Fixes: memleak Fixes: 18473/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5738557074833408 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/mxfdec.c
• 09:33
  avfilter/vf_dnn_processing: add a generic filter for image proccessing with dnn networks - Guo, Yejun git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_dnn_processing: add a generic filter for image proccessing with dnn networks This filter accepts all the dnn networks which do image processing. Currently, frame with formats rgb24 and bgr24 are supported. Other formats such as gray and YUV will be supported next. The dnn network can accept data in float32 or uint8 format. And the dnn network can change frame size. The following is a python script to halve the value of the first channel of the pixel. It demos how to setup and execute dnn model with python+tensorflow. It also generates .pb file which will be used by ffmpeg. (...)
• 09:31
  avcodec/utils: Check block_align - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/utils: Check block_align Fixes: out of array access Fixes: 18432/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAV2_fuzzer-5675574936207360 Fixes: 18326/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAV2_fuzzer-5071752362721280 Fixes: 18384/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAV1_fuzzer-5769439500304384 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:20
  Library not loaded error , when I trying to use ffmpeg - bruno Newest 'ffmpeg' Questions - Stack Overflow
  after update my mac to high sierra, I can't use ffmpeg $ ffmpeg dyld: Library not loaded: /opt/local/lib/libidn2.0.dylib Referenced from: /opt/local/lib/libgnutls.30.dylib Reason: image not found Abort trap: 6 Any help is much appreciated! Bruno

Piwik http://piwik.org/

• 03:25
  Date and segment comparison feature - Matomo Core Team Piwik
  Get a clearer picture with the date and segment comparison feature What can you do with it? What are the benefits? Make informed decisions faster by easily comparing different segments and dates with each other. Compare report data for multiple segments next to each other Directly compare the behaviour of visitors from different segments e.g. customers with accounts vs. customers without accounts. Segment comparisons are a powerful way to compare different audience; learn which ones perform better; and in what way their actions differ. Compare report data for two time periods next to (...) -- Analytics Tips, Development

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:31
  ffmpeg and grep not working to extract mean_volume value - Json Newest 'ffmpeg' Questions - Stack Overflow
  I have a list of mp3 files and i want to set all mean_volume to the same db value using a script, so I enter the command for detecting the value (https://trac.ffmpeg.org/wiki/AudioVolume) and I try to grep the value but it fails and instead prints all the output from the ffmpeg command. Any thoughts? Also tried tr instead of grep. The command I used is: ffmpeg -i sample.mp3 -filter:a volumedetect -f null /dev/null | grep 'mean_volume' -- https://trac.ffmpeg.org/wiki/AudioVolume
• 21:03
  RTSP Client for H264 Audio/Video Stream - Jean-Philippe Encausse Newest 'ffmpeg' Questions - Stack Overflow
  I'm looking for a simple way to get data of an IP Camera RTSP Stream (using H264 Audio/Video) and get on the other side a frame by frame byte[] a stream of the audio After many research EmguCV Capture seems hanging forever (no answer from forum) There is many (too big) RTSP Server few decode H264 There is "slow" ffmpeg wrapper There is some managed DirectShow wrapper So I don't know where to go ? And how to do this ? It seems iSpyCamera is doing the job but it's a big project not a little library to query ip (...) -- RTSP Server
• 20:37
  FFmpegMediaMetadataRetriever.getFrameAtTime() is slow in progress - Snip Hop Newest 'ffmpeg' Questions - Stack Overflow
  I know this question is duplicate but please give some solution please. Android FFmpegMediaMetadataRetriever.getFrameAtTime() is slow in progress, my fragment take almost 10 second to generate the video frames
• 19:34
  r what filename for saving gganimate file - JerryN Newest 'ffmpeg' Questions - Stack Overflow
  The following two lines of code, taken from this script, do what I think they should; that is, use a previously generated ggplot file - gganim - create an animation in Rstudio's viewer (the first line) and save the last animation to the graphics directory on my mac (the second line). But my mac thinks this is a txt file. I've tried adding .mpeg, mp4, etc. to the file name without any success. Seems like one of this problems I'll do a Homer Simpson on after someone points out the solution. gganimate::animate(gganim, nframes = length(yearsToDisplay), fps = 1, renderer = ffmpeg_renderer()) (...) -- script
• 18:36
  ffmpeg outputs single frame video while I'm trying to create video from set of frames - int_32 Newest 'ffmpeg' Questions - Stack Overflow
  I have set of frames, and want to create video from them. I use the following command: /usr/local/bin/ffmpeg -i /tmp/frames/0.png -i /tmp/frames/1.png -i /tmp/frames/2.png -i /tmp/frames/3.png -i /tmp/frames/4.png -i /tmp/frames/5.png -i /tmp/frames/6.png -i /tmp/frames/7.png -i /tmp/frames/8.png -i /tmp/frames/9.png -i /tmp/frames/10.png -i /tmp/frames/11.png -i /tmp/frames/12.png -i /tmp/frames/13.png -i /tmp/frames/14.png -i /tmp/frames/15.png -i /tmp/frames/16.png -i /tmp/frames/17.png -i /tmp/frames/18.png -i /tmp/frames/19.png -i /tmp/frames/20.png -i /tmp/frames/21.png -i (...)
• 18:20
  Webcam with FFmpeg on Mac: Selected framerate (29.970030) is not supported by the device - Galaxy Newest 'ffmpeg' Questions - Stack Overflow
  There was a very strange problem on Mac when I tried to access the webcam using FFmpeg. For example: ffmpeg -f avfoundation -i "1" -framerate 60 -vcodec libx264 -preset veryfast -f flv rtmp://localhost:1935/hls/test No matter what framerate I set, the error was always the same. [avfoundation ⓐ 0x7ff831800000] Selected framerate (29.970030) is not supported by the device [avfoundation ⓐ 0x7ff831800000] Supported modes: [avfoundation ⓐ 0x7ff831800000] 320x240ⓐ[120.101366 120.101366]fps [avfoundation ⓐ 0x7ff831800000] 640x480ⓐ[120.101366 120.101366]fps [avfoundation ⓐ 0x7ff831800000] (...)
• 18:11
  Android FFmpegMediaMetadataRetriever.getFrameAtTime() is slow in progress - Snip Hop Newest 'ffmpeg' Questions - Stack Overflow
  I know this question is duplicate but please give some solution please. Android FFmpegMediaMetadataRetriever.getFrameAtTime() is slow in progress, my fragment take almost 10 second to generate the video frames
• 17:11
  FFMPEG - overlaying 4 videos not working, 2 videos is working perfectly - Taapo Newest 'ffmpeg' Questions - Stack Overflow
  I've been trying to overlay videos using ffmpeg. Pretty simple, using ProRes 4444 (with alpha channel). When I overlay two videos, there is no problem. When I try to overlay more than two, it only shows the first two entries. Is FFMPEG only capable of overlaying two videos? ffmpeg.exe -y \\ -i test-transparent-03.mov \\ -i test-transparent-04.mov \\ -i test-transparent-02.mov \\ -i test-transparent-01.mov \\ -filter_complex overlay -c:v libx264 output.mp4 This command is working perfectly: ffmpeg.exe -y \\ -i test-transparent-03.mov \\ -i test-transparent-04.mov \\ -filter_complex overlay (...)
• 13:19
  Passing streams from Fluent-ffmpeg to Google Cloud Storage - Emilio Faria Newest 'ffmpeg' Questions - Stack Overflow
  Is there a way to pass a stream from Fluent-mmpeg to Google Cloud Storage? I'm trying to allow the user to upload any kind of media (audio or video), and I want to convert it to flac before uploading it to GCS. I'm using a few middlewares on my route, such as: routes.post( '/upload', multer.single('audio'), ConvertController.convert, UploadController.upload, FileController.save, (req, res, next) => res.send('ok') ); I was able to stream from Multer to Fluent-mmpeg and save to a file using this code on ConvertController: async convert(req, res, next) (...)
• 14:04
  Using puppeteer to screenshot page and using ffmpeg to generate a video from the screenshot images. how to make smoothly video? - Ziyu Zhou Newest 'ffmpeg' Questions - Stack Overflow
  I wanna record a web page, and generate a video on server. Here are my steps. 1. using puppeteer to screenshot the page one by one, and i have images; 2. using ffmpeg to generate a video from the images; Q: I found that puppeteer launch more than one browser, screenshot will slow down. how to make puppeteer screenshot more effective? I use jpeg format, and reduce the quality to 80. If record a web page needs 30s, I make it chunk to reduce time, for example, launching more than one browser to cut down the recording to 2, or (...)
• 13:37
  PHP - Upload video convert mp4 and upload to Amazon S3 - Kadir Geçit Newest 'ffmpeg' Questions - Stack Overflow
  I'm using amazon s3 as video storage for my website. I'm having problems for some videos. black screen or sound problems etc. I want to convert the video to mp4 format after uploading the video to my server and then upload it to amazon. Is it possible with FFMPEG? I'm using this code for uploading files now: $file1 = $_FILES['file']['name']; $videoFileType = strtolower(pathinfo($file1,PATHINFO_EXTENSION)); $file_name = sprintf('%s_%s', uniqid(),uniqid().".".$videoFileType); $temp_file_location = $_FILES["file"]["tmp_name"]; require 'application/libraries/Amazon/aws-autoloader.php'; $s3 (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 10:22
  avfilter/af_afade: start crossfading only when first stream reached end - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/af_afade: start crossfading only when first stream reached end [DH] libavfilter/af_afade.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 10:39
  Getting a dark output when converting .exr sequence to .mp4 - Gambit2007 Newest 'ffmpeg' Questions - Stack Overflow
  I have a 16bit .exr image sequence in an RGB colorspace. When I convert it to .mp4 using: ffmpeg -start_frame 1100 -i input.$04d.exr output.mp4 The resulting .mp4 file is very dark. I tried importing it to a video compositing software (like NUKE) and apply a linear lut, it looks correct. How can I do the same thing using ffmpeg?
• 10:30
  Scaling and stacking 2 videos - Gambit2007 Newest 'ffmpeg' Questions - Stack Overflow
  I have 2 inputs and I want to scale, crop and put them on top of each other at the same time. My command should look something like this: ffmpeg -i input1 -i input2 -filter_complex crop=10000:5000:1000:0,scale=3840:1536 vstack output.mp4 I know I need to use chaining (?) but I tried to look it up online and couldn't really get it to work. So what would be the correct syntax the scale and crop both inputs and then put them vertically on top of each other while using '-filter_complex' only (...)
• 08:35
  FFmpeg: Get better encoding out of my function - A Person Newest 'ffmpeg' Questions - Stack Overflow
  I needed some assistance on my task. I am using FFmpeg to burn time and the channel name onto the video. My goal is to record a stream that is html5 compatible with the following settings: Video wrapper MP4 Video codec H.264 Bitrate 1Mbps Audio codec AAC Audio bitrate 128Kbps And GPU encoding. This is what I am using: ffmpeg -hwaccel cuvid -y -i udp -vf "drawtext=fontfile=calibrib.tff:fontsize=25:text='ChannelName %localtime': x=10: y=10: fontcolor=white: box=1: boxcolor=0x000000" -pix_fmt yuv420p -vsync 1 -c:v h264_nvenc -r 25 -threads 0 -b:v 1M -profile:v main -minrate 1M (...)
• 08:00
  no audio after mp3 + jpg with ffmpeg - YongJiang Zhang Newest 'ffmpeg' Questions - Stack Overflow
  I have a mp3 file. I checked. It has audio. After run command ffmpeg -i 31.mp3 -i cover.jpg -c:a copy -s 1280x720 -pix_fmt yuv420p 31.mp4 I got 31.mp4 but it has no audio. I use macbook pro and ffmpeg version 4.1
• 07:02
  ffmpeg output in log file using C# - Arunava Chowdhury Newest 'ffmpeg' Questions - Stack Overflow
  This is a simple code to create ffmpeg log output in a file instead of console. string fullPath = "d:"; string fileName= "wildlife.wmv"; string pathfile = "D:"; process.StartInfo.Arguments = "-i \\"" + fullPath + "\\" + fileName + +\\" 2> \\"" + pathfile + "\\ffmpeglog.log\\""; process.StartInfo.UseShellExecute = false; process.StartInfo.RedirectStandardError = true; process.StartInfo.CreateNoWindow = false; process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; process.Start(); string output2 = process.StandardError.ReadToEnd(); process.WaitForExit(); process.Close(); But this code (...)

30 October

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 14:20
  avfilter/vf_lut3d: simplify code - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_lut3d: simplify code Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavfilter/vf_lut3d.c
• 14:20
  swscale/swscale_unscaled: fix gbrap10be md5 different on big endian system - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  swscale/swscale_unscaled: fix gbrap10be md5 different on big endian system You can reproduce it by below command: ./ffmpeg -f lavfi -i "testsrc=duration=1:rate=30" -vf format=gbrap10 -vcodec rawvideo \\ -pix_fmt gbrap10le -flags +bitexact -sws_flags +accurate_rnd+bitexact -fflags +bitexact \\ -frames:v 1 -f nut md5: little-endian: f91e2edd8098276579c1929e5e160416 big-endian: ba4d011dbbdc78ccbf6cc7d698630929 Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> (...)
• 14:01
  libavformat/flacenc: reject too big picture blocks - Mattias Wadman git.videolan.org Git - ffmpeg.git/rss log
  libavformat/flacenc: reject too big picture blocks A too big picture will case the muxer to write a truncated block size (uint24) causing the output file to be corrupt. How to reproduce: Write a file with truncated block size: ffmpeg -y -f lavfi -i sine -f lavfi -i color=red:size=2400x2400 -map 0:a:0 -map 1:v:0 -c:v:0 bmp -disposition:1 attached_pic -t 1 test.flac Try to decode: ffmpeg -i test.flac test.wav Signed-off-by: Mattias Wadman <mattias.wadmanⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] (...)
• 10:14
  avfilter/vf_median: add radiusV option - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_median: add radiusV option [DH] doc/filters.texi [DH] libavfilter/median.h [DH] libavfilter/median_template.c [DH] libavfilter/vf_median.c
• 01:11
  configure: fix standalone compilation of mxf muxer - Lou Logan git.videolan.org Git - ffmpeg.git/rss log
  configure: fix standalone compilation of mxf muxer Signed-off-by: Lou Logan <louⓐlrcd.com> Signed-off-by: Paul B Mahol <onemdaⓐgmail.com> [DH] configure

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:58
  Join a lot of frames with some audio files - Laurin Neff Newest 'ffmpeg' Questions - Stack Overflow
  What I'm trying to do I have 3697 frames (frames/[0-3696].png) and 5 audio files, which are the same length in total as the resulting video should be (audio/[0-4].mp3). I'm trying to play the frames at 15 fps, with the audio files playing in sequence and putting this into out.mp4. How can I achieve this? File tree frames |-0.png |-1.png |... |-3695.png \\-3696.png audio |-0.mp3 |-1.mp3 |-2.mp3 |-3.mp3 \\-4.mp3 What I've tried ffmpeg -i frames/%d.png -i audio/%d.mp3 -vf fps=15 out.mp4 What I expect I expect out.mp4 to contain all frames, with the 5 mp3 files playing in sequence What (...)
• 19:02
  ffmpeg convert a series of images to video - with crossfade or any other transition between every two frames - Narendra Singh Newest 'ffmpeg' Questions - Stack Overflow
  I am currently able to convert a series of images to video, but I do also need to add transitions / animation in between them. String[] ffmpegCommand = "/data/data/mypackage/app_bin/ffmpeg", "-y", "-qscale", "1", "-r", "" + framerate, "-i", "/data/data/mypackage/app_ipImg/image%3d.jpg", "-t", "" + (((total_images) * delay_of_each_frame_in_seconds) + 4), //"-s",heightwidth, "-vcodec", "libx264", "-s", "640x480", Environment.getExternalStorageDirectory() + "/photo_directory/myVideo.mp4"; The above command is working for me to create video from image series But Now, I do want to add fade (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 19:07
  avfilter/af_afade: check for eof after crossfade later - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/af_afade: check for eof after crossfade later Fixes memleaks and #8346 [DH] libavfilter/af_afade.c
• 17:55
  doc/filters: move drawgraph to video filters chapter - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  doc/filters: move drawgraph to video filters chapter [DH] doc/filters.texi
• 17:47
  doc/filters: move agraphmonitor to multimedia filters chapter - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  doc/filters: move agraphmonitor to multimedia filters chapter [DH] doc/filters.texi

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 18:52
  I want to make a video with ffmpeg starting from filenames which are not imd%04d - Federica Tonti Newest 'ffmpeg' Questions - Stack Overflow
  I have a list of .png images, with the following format: cut-x%2.2f-A.png so for example cut-x0.10-A.png cut-x0.20-A.png ... cut-x12.10-A.png I try to launch ffmpeg as it follows: ffmpeg -i "cut-x%2.2d-A.png" cuts.wmv and I get the error: cut-x%2.2d-A.png: No such file or directory Advice?
• 18:37
  Create muted video and black screen video with FFmpeg - user2685832 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to use FFmpeg to generate the following from a local mp4 file: A copy of the original video with no audio A copy of the original video with audio but without visuals (a black screen instead). This file also needs to be in mp4 format. After reading through the documentation I am struggling to get the terminal commands right. To remove the audio I have tried this command without any success: ffmpeg -i file.mp4 -map 0:0 -map 0:2 -acodec copy -vcodec copy Could anyone guide me towards how to accomplish (...)
• 17:34
  How to generate video preview thumbnails for use in VideoJS? - steven Newest 'ffmpeg' Questions - Stack Overflow
  I moved over to VideoJs (html5) and need to figure out how to generate thumbnails for the seekbar. I have tried using videojs-thumbnails, however that requires having a preloaded vtt file with a sprite image. I'm trying to figure out a way to automatically load thumbnails for a regular mp4 (h264) file. Flowplayer was able to do this with it's own videos, trying now to figure out how to do it with VideoJs. I was hoping their was some plugin that I missed that was capable of doing this, but have yet to find it. The best I figured out was to extract the thumbnails from the mp4 file, combine (...)
• 14:35
  ffmpeg converting m4s to mp4 - Ibrahim Ozaeri Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on DASH, trying to optimize QoE for the end user. I had a video and encoded it using ffmpeg into different bitrates and everything is fine, and the video is playable using dash. What I want is to combine the received segments from the users into one m4s and convert that m4s to mp4. I tried a lot of ways in ffmpeg, but it always give me this error: [mov,mp4,m4a,3gp,3g2,mj2 ⓐ 0x9a9e500] could not find corresponding track id 1 [mov,mp4,m4a,3gp,3g2,mj2 ⓐ 0x9a9e500] could not find corresponding trex [mov,mp4,m4a,3gp,3g2,mj2 ⓐ 0x9a9e500] error reading header test2.m4s: Invalid (...)
• 14:03
  AWS Lambda for generate thumbnail save empty file - Milousel Newest 'ffmpeg' Questions - Stack Overflow
  I need to create aws lambda for creating thumbnail from video by using ffmpeg, which is saved on S3 and this thumbnail saved into S3 too. I downloaded ffmpeg from https://johnvansickle.com/ffmpeg/ page, set ffmpeg into nodejs file and send it into .zip. From this zip file I created ffmpeg layer. After that I connect my lambda with this ffmpeg layer. When I test it I receive Success response, but I save empty file (0 B size) into S3. const AWS = require("aws-sdk"); const spawn = require("child_process"); const createReadStream, createWriteStream = require("fs"); const s3 = new (...) -- https://johnvansickle.com/ffmpeg/
• 13:25
  FFmpeg: How to add a fading effect to the video slides? - ArmKh Newest 'ffmpeg' Questions - Stack Overflow
  I have a text file with the names of the images (paths) which I'm using in the video. The file looks like this file 'image1.jpg' file 'image2.jpg' file 'image3.jpg' file 'image4.jpg' file 'image5.jpg' And the ffmeg command is ffmpeg -y -r 1/5 -f concat -safe 0 -i imagenames.txt -i some_audio.mp3 -c:v libx264 -vf fps=30 -pix_fmt yuv420p -t 30 output.mp4 And I need to add a fading effect to the video slides ( frames ). And I wonder, is it possible to do it using a text file for the (...)
• 12:49
  Compressing video in flutter using ffmpeg - kunaljosh369 Newest 'ffmpeg' Questions - Stack Overflow
  I want to compress video before uploaing i am already using FFmpeg in my project.Currently i am using below code but not working. var arguments = ["-i", file.path, "-c:v", "mpeg4", "file2.mp4"]; _flutterFFmpeg .executeWithArguments(arguments) .then((rc) => print("FFmpeg process exited with rc $rc"));
• 11:04
  AWS Lambda for generate thumbnail - Milousel Newest 'ffmpeg' Questions - Stack Overflow
  I need to create aws lambda for creating thumbnail from video by using ffmpeg, which is saved on S3 and this thumbnail saved into S3 too. I downloaded ffmpeg from https://johnvansickle.com/ffmpeg/ page, set ffmpeg into nodejs file and send it into .zip. From this zip file I created ffmpeg layer. After that I connect my lambda with this ffmpeg layer. When I test it I receive Success response, but image does not on server. const AWS = require("aws-sdk"); const spawnSync, spawn = require("child_process"); const createReadStream, createWriteStream = require("fs"); const os = (...) -- https://johnvansickle.com/ffmpeg/

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 10:48
  doc: fix typo in muxers documentation - Alfred E. Heggestad git.videolan.org Git - ffmpeg.git/rss log
  doc: fix typo in muxers documentation [DH] doc/muxers.texi

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 09:19
  How to use ffmpeg to check video corruption in python? - Jainal Gosaliya Newest 'ffmpeg' Questions - Stack Overflow
  Hi i am currently having this python code : import subprocess import shlex cmd = "ffmpeg -v error -i 3.mp4 -f null - 2>error.log" new_cmd = shlex.split(cmd) subprocess_cmd = subprocess.list2cmdline(new_cmd) print(subprocess_cmd) subprocess.call(new_cmd) The issue is when i run the code i get the following error: [NULL ⓐ 0x555594682920] Unable to find a suitable output format for '2>error.log' 2>error.log: Invalid argument Can anyone please help with (...)
• 10:15
  Extract part of a video using ffmpeg_extract_subclip - black frames - albert1905 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to use: "ffmpeg_extract_subclip" for extracting part of a video. And I'm facing a few problems: 1.when I'm cutting a small video (1-3seconds) I'm getting black frames, only audio is working. 2.when I'm cutting longer video, the output video stucks 2-3 seconds before the end. This is my simple code: from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip input_video_path='myPath/vid1.mp4' output_video_path='myPath/output/vid1.mp4 t1=6.5 t2=16 #random numbers, my last attempt.. ffmpeg_extract_subclip(input_video_path, t1, t2, targetname=output_video_path) I tried to (...) -- ffmpeg_extract_subclip Function
• 09:57
  How to map ffmpeg formats to MIME types and file extensions? - odigity Newest 'ffmpeg' Questions - Stack Overflow
  Anyone know of a reference for mapping ffmpeg format values to MIME types and recommended file extension? My google attempt failed to turn up anything. I did manually put together a small list with guess-work and clues from Wikipedia, IANA, and the Mozilla Developer Network for the subset of formats that I encountered in my video input test collection: ffmpeg Format Extension MIME Type ─────────────────────── ───────── ────────────────────── asf asf application/vnd.ms-asf avi avi video/x-msvideo flv flv video/x-flv matroska,webm webm video/webm m4v m4v video/x-m4v mov,mp4,m4a,3gp,3g2,mj2 mp4 video/mp4 mpeg mpeg (...) -- IANA, Mozilla Developer Network
• 08:40
  Overlay on full video length when making video from images sequence using ffmpeg - Atta Newest 'ffmpeg' Questions - Stack Overflow
  I am facing a issue when I overlay watermark image on video (I am making video from images sequence).The issue is that the overlay image only append on first image and ignoring all other images in video. I want to overlay this image on whole video. Possibly I am wrongly applying -filter_graph to input stream. I am executing below mentioned script. I searched online but did not find any relevant answer. ffmpeg -r 1/5 -i img%2d.jpeg -i watermark.png -i music.mp3 -filter_complex "[0:v][1:v] overlay=x=10:y=10" (...)
• 08:25
  Converting m3u8 link to frame through FFMpeg - LionKing Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to convert the .m3u8 live streaming link into frames instantly. I can convert the link to the frames by overwriting. But as much as I understood, FFMpeg reads the m3u8 links package by package, so this creates a standstill on the frames, frames doesn't flow unceasingly. I have tried to overcome this issue by setting input and output framerates manually. The code I used is below. URL=https://trtcanlitv-lh.akamaihd.net/i/TRT1HD_1ⓐ181842/index_720p_av-b.m3u8 ffmpeg -y -r 4 -i $URL -r 25 -update 1 image.jpg This allowed me to overcome standstill problem a bit but not really, but (...)

29 October

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 19:01
  Can't find a good solution to play a MPEG2-TS (no HLS) stream on my iOS App - Heidan34 Newest 'ffmpeg' Questions - Stack Overflow
  I'm currently looking for an easy to implement iOS media player library that can cover my needs which are : Being able to play a MPEG2-TS (.ts) without hls. Being able to authenticate the video request with a bearer in the header I tried some without success, most of the other ones were not maintained anymore : AVPlayer (native) SGPlayer VLCKit (video ok but crashes randomly + not able to give a custom http header) ffmpeg-avplayer Could you please help me ? Thanks (...)
• 14:25
  Serving live video streams with Spring Boot? - ank Newest 'ffmpeg' Questions - Stack Overflow
  Not sure if my question is correct/clear but basically I need help getting started building http video stream from different ffmpeg output with Spring Boot. I'm trying to build an NVR application. I plan to use ffmpeg to read ip camera streams (over LAN), produce an output and allow users to view these streams (live) through the web application (possible over the internet) or through http built using Spring Boot. I would also want to give users the ability to add more ip camera streams (within the web application) and have the application automatically run ffmpeg to read and write the (...) -- ffmpeg-cli-wrapper

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 13:05
  avfilter/vf_vfrdet: also report average delta - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_vfrdet: also report average delta [DH] doc/filters.texi [DH] libavfilter/vf_vfrdet.c
• 12:57
  avfilter/vf_vfrdet: fix reporting max delta - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_vfrdet: fix reporting max delta If only first delta was big it was previously discarded. [DH] libavfilter/vf_vfrdet.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 12:08
  Trigger exec_pull on http connection - M. Cole Newest 'ffmpeg' Questions - Stack Overflow
  Is it possible to trigger exec_pull on http connection? For example, I have the following Nginx configuration: server listen 80; location /hls types application/vnd.apple.mpegurl m3u8; video/mp2t ts; root /mnt; add_header Cache-Control no-cache; index index.m3u8 index.ts; add_header Access-Control-Allow-Origin *; rtmp server listen 1935; allow play all; application hls live on; exec_options on; exec_pull /usr/bin/ffmpeg -re -i http://example.com:333/293.m3u8 -c copy -f flv rtmp://localhost:1935/hls/$name; application hls live on; hls on; hls_path /mnt/hls; hls_fragment 3s; (...) -- http://my-serverip.com/hls/293.m3u8
• 11:13
  Cannot Play Video Output of Libavcodec (ffmpeg) Encoding Example - user3707763 Newest 'ffmpeg' Questions - Stack Overflow
  From FFMPEG's GitHub, I use the encode_video.c to generate a 1 second video. Here is the example in question: https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/encode_video.c I compile with: gcc -Wall -o ffencode encode_video.c -lavcodec -lavutil -lz -lm Clean compile, zero warnings. I test the program by running: ./ffencode video.mp4 libx264 Lots of stats printed out (expected based on source code) as well as ffmpeg logs, but ultimately no errors or warnings. However, then the generated output video.mp4, can only be played by ffplay, and VLC Player (as well as Google Chrome) (...) -- https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/encode_video.c
• 10:21
  piping stderr/stdout to textfield from outside a process function - NCrusher Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create a method to pipe stderr and stdout from a process to a text display. The example I borrowed a lot of the code from was written for the code to be INSIDE the method that was running the process. I'm trying to move the code to its own separate method so that I can use it on two different processes (one running ffprobe and one running ffmpeg with arguments built on some of the output from the ffprobe process) without repeating a huge, virtually identical chunk of code in each process. In each of the two processes, I've included this: let ffPipe = Pipe() (...)
• 09:38
  FFmpeg - RTCP BYE packets - DZoki019 Newest 'ffmpeg' Questions - Stack Overflow
  I’m working on some C++ project which depends on Wi-Fi RAK5206 electronic board. I’m using ffmpeg library to obtain video and audio stream and I have issue where I can start and stop stream for four times, but when I want to start for the fifth time I get error. Error description is Invalid data found when processing input and it happens when I call avformat_open_input function and I need to restart the electronic board, reconnect to Wi-Fi etc. I figured out with Wireshark application that VLC is working and it is sending some BYE packets when TEARDOWN is called. I wonder if error depends (...) -- rtpenc.h
• 08:04
  the same audio have different length using different tools (librosa,ffprobe) - Fathy Eltanany Newest 'ffmpeg' Questions - Stack Overflow
  I want to measure an audio file's duration. I'm using two different tools and got different values. ffprobe: I'm using this line to get duration using ffprobe ffprobe -i audio.m4a -show_entries format=duration -v quiet -of csv="p=0" result :780.320000 seconds 2. Librosa (python library) and using this line to get duartion using librosa y1, sr1 = librosa.load(audio_path, sr=44100) librosa.get_duration(y1, sr1) * 1000 result 780329.7959183673 milliseconds Does anyone know what's causing the (...)
• 07:35
  FFmpeg: Can't write metadata to a .ts file - John Bergqvist Newest 'ffmpeg' Questions - Stack Overflow
  I have an input that i'm muxing into a .ts file, however despite what FFmpeg's wiki says (that it supports the title and language metadata keys) for MPEG transport streams), the title isn't propagating to the video & audio: ffmpeg -i "source" \\ -map 0:0 -metadata:s:v:0 title="VIDEO_TITLE" \\ -map 0:1 -metadata:s:a:0 language="eng" -metadata:s:a:0 title="AUDIO_TITLE" \\ -c copy "output.ts" The language is, but not the title. This is what I get when actually muxing: Output #0, mpegts, to 'output.ts': Metadata: encoder : Lavf58.20.100 Stream #0:0: Video: h264 (High) ([27][0][0][0] / (...)
• 06:22
  How can I exclude eia_608 subtitles when copying with ffmpeg? - Robert Salesas Newest 'ffmpeg' Questions - Stack Overflow
  I am transcoding some video files that include eia_608 subtitles (Stream #0:50(eng): Subtitle: eia_608 (c608 / 0x38303663)) which I want to exclude. Is there a way to automatically copy all the other subtitles, but exclude these? I tried using map -XXX but can't figure out how to specify a type. ffmpeg -i Original.mp4 -map 0 -map -0:s:eia_608 -c:a copy -c:v copy -codec copy -t 120 ffmpeg.mp4 This code results in the error Invalid stream specifier: s:eia_608 as it is expecting a stream specifier and not the subtitle (...)
• 03:09
  ffmpeg complex filtering: how to get around - Melvin Roest Newest 'ffmpeg' Questions - Stack Overflow
  Alright, I have my own compiled ffmpeg with --enable-lv2. This allows for 3rd-party plugins to work. The plugin I use is: https://github.com/lucianodato/speech-denoiser it's a plugin that wraps around this RNN noise reduction library: https://github.com/GregorR/rnnoise-models The following commands work: (1) ffmpeg -i input.mov -filter_complex '[0:a]lv2=plugin=https\\\\://github.com/lucianodato/speech-denoiser[audio]' -map "[audio]" output.wav (2) ffmpeg -i input.mov -filter_complex '[0:v]copy[video]' -map "[video]" output.mov But when I do the combination, that doesn't work. ffmpeg -i (...) -- https://github.com/lucianodato/speech-denoiser, https://github.com/GregorR/rnnoise-models
• 01:44
  repeating process twice with different arguments each time - NCrusher Newest 'ffmpeg' Questions - Stack Overflow
  I'm still quite new to coding and Swift. Forgive my doubtlessly clumsy code. I am trying to run a process with ffprobe from the main resource bundle. Actually, I need to run it twice, each time with different arguments, once to get the duration of the audio file I'm inputting, and once to get the full output so that I can parse it for a tidbit of data that I can't isolate in a single argument the way I can the file duration. (I have to do it twice because the full output doesn't actually list the duration in seconds the way that I need.) To avoid a lot of repetitive code, I'd like to do (...)

28 October

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

• 05:41
  Revision 118307: [Salvatore] [source:_plugins_/saisies/trunk/lang/ saisies] Export ... - hanjo.spipⓐ… Revisions : saisies
  [Salvatore] saisies Export depuis ​http://trad.spip.net de la langue nl -- Log

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 14:11
  avfilter/vf_sr: correct flags since the filter changes frame w/h - Guo, Yejun git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_sr: correct flags since the filter changes frame w/h If filter changes frame w/h, AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC cannot be supported. Signed-off-by: Guo, Yejun <yejun.guoⓐintel.com> Signed-off-by: Pedro Arthur <bygrandaoⓐgmail.com> [DH] libavfilter/vf_sr.c
• 00:12
  avcodec/wmalosslessdec: Fix some integer anomalies - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/wmalosslessdec: Fix some integer anomalies Fixes: left shift of negative value -341180 Fixes: 18401/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5686380134400000 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/wmalosslessdec.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 09:59
  Can anyone guide me how to use FFMPEG to decode H264 Video by swift in IOS? [closed] - nguyen_hung _mrroot Newest 'ffmpeg' Questions - Stack Overflow
  Can anyone guide me how to use FFMPEG to decode H264 Video by Swift in IOS ? Thanks in advance.
• 23:11
  dyld: Symbol not found: _objc_alloc_init - dimarik Newest 'ffmpeg' Questions - Stack Overflow
  I built static ffmpeg binaries under one mac and when I trying to run the binary under another one I have the following error: ./ffmpeg -f avfoundation -list_devices true -i '' ffmpeg version N-95218-g7da57875b5 Copyright (c) 2000-2019 the FFmpeg developers built with Apple clang version 11.0.0 (clang-1100.0.33.8) configuration: --pkg-config-flags=--static --disable-ffplay --disable-debug --disable-doc --enable-filter=format --disable-d3d11va --disable-dxva2 --disable-network --disable-iconv --disable-protocol=crypto --enable-libopus --enable-libvorbis --enable-libmp3lame (...)
• 21:02
  Give a video rounded transparent edges so that it can be overlayed on another video using FFMPEG - Kevin Jasti Newest 'ffmpeg' Questions - Stack Overflow
  Im trying to overlay a smaller video (200x200)on top of a bigger video (800x800). I've used the FFMPEG overlay filter to achieve this ffmpeg -i big.mp4 -vf "movie=small.mkv[clip2]; [in][clip2] overlay=1:5 [out]" final.mp4 Challenge is that the smaller video needs its edges to be rounded. I have tried working with alphaextract and alphamerge. The documentation on FFMPEG is sparse and im not sure how to go about it.
• 18:37
  ffmpeg add semi transparent watermark(png) with different size - Archer Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to add a png watermark (with alpha channel) over h264 video with semi transparent. By using overlay filter I managed to add watermark to the video. ffmpeg -y -i input.mp4 -i watermark.png -filter_complex "[0][1] overlay=0:0" -c:v libx264 -an output.mp4 But overlay filter does not provide transparent option. So I tried to use blend filter. However, when I use origin resolution, error message comes out. ffmpeg -y -i input.mp4 -i watermark.png -filter_complex "[0][1]blend=all_mode=overlay:all_opacity=0.3" -c:v libx264 -an output.mp4 Output: libavutil 55. 28.100 / 55. 28.100 (...) -- https://drive.google.com/open?id=0B2X3VLS01TogdHVJZ2I1ZC1GUUU, https://drive.google.com/open?id=0B2X3VLS01TogbjhuZTlBOFFpN1k
• 16:55
  Is there a way to apply a curve bend in ffmpeg? - stevendesu Newest 'ffmpeg' Questions - Stack Overflow
  I have four cameras each feeding me a different portion of a basketball court. Due to the slight offset of the cameras physical locations and lens distortion around the edges of the camera, I cannot simply stitch the videos together without some kind of correction. I've looked into ffmpeg's perspective filter, as well as the lenscorrection filter. In the former case it was only able to create a trapezoid, not the curved image I want. In the latter case using negative values to k1 and k2 seemed to be heading in the right direction, but it either disorted the top and bottom of the image to (...) -- perspective, lenscorrection, , , , , ,
• 16:42
  VP9 encoding limited to 4 threads? - kellerkindt Newest 'ffmpeg' Questions - Stack Overflow
  I am considering to use VP9 to encode my BluRays in the future, since its an open source codec. But I cannot get Handbrake or ffmpeg use more than 50% (4) of my (8) cores. The encoding time is therefore much worse than x264/5 which uses all cores. In Handbrake I just set encoder to VP9 and CQ19. There is no difference if I add "threads 8", "threads 16" or "threads 64" in the parameters field. Testing ffmpeg in the command line ("-c:v libvpx-vp9 -crf 19 -threads 16 -tile-columns 6 -frame-parallel 1 -speed 0") also does not use any more cpu threads. Is the current encoder not capable of (...)
• 14:15
  FFmpeg Compiled for android Does not Have Protocol symbols i.e. nm -D libavformat.so does not have ffurl_close, ffurl_see methods of avio.c class - Nishi Sahlot Newest 'ffmpeg' Questions - Stack Overflow
  FFmpeg Compiled for android does not have protocol symbols. After compiling ffmpeg it produces 7 or so files and when I check libavformat.so with nm -D libavformat.so it simply does not have ffurl_close, ffurl_see methods of avio.c nor it has async protocol methods. When I try to build and then want to use method of url.h class in libavformat package, like ffurl_close it simply says: undeclared reference. Please help me, what am I doing wrong? Thanks in (...)
• 13:49
  Ffmpeg - Codec 'mp2' (86016) is not supported by the bitstream filter 'aac_adtstoasc' - user3925023 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to dump a video streaming on local file using this syntax: ffmpeg -i "http://test.com/videoxxx" -c copy -bsf:v aac_adtstoasc -t 10 c:\\\\temp\\\\out.mp4 -loglevel debug It works pretty fine but recently I've encounter specific error: [mpegts ⓐ 00000232c9568f40] DTS 165134700 #0:0 (copy) Stream #0:1 -> #0:1 (copy) Last message repeated 1 times [AVIOContext ⓐ 00000232c95ecfc0] Statistics: 0 seeks, 0 writeouts [AVIOContext ⓐ 00000232c9574780] Statistics: 822628 bytes read, 0 seeks Is it possible to use specific FFMPEG command avoid bitstream filter issue? I've tryed with: -vcodec (...)
• 13:36
  Mix original clip audio with audio of an overlay clip - Mr. Messy Newest 'ffmpeg' Questions - Stack Overflow
  I have a video clip on which I want to add commentary videos (someone talking in a bubble). I have 3 commentary videos I need to insert in specific times. The video rendering is working well, but I can't seem to add the audio tracks. I tried both amix and amerge, but I got the same issue. When I added "[0:1][2:1]amerge;" I get the follwing: and the process freezes. The full ffmpeg command is as follows: ffmpeg -y -i story.mp4 -loop 1 -i mask.png -itsoffset 10 -i commentary1.mp4 -itsoffset 22 -i commentary2.mp4 -itsoffset 34 -i commentary3.mp4 -filter_complex (...) --
• 07:44
  How to retrieve FFMPEG (called from OpenCV) Python decoding error - user9784065 Newest 'ffmpeg' Questions - Stack Overflow
  While trying to read a video stream form an IP camera using: stream = cv2.VideoCapture(src) (grabbed, frame) = stream.read() The grabbed returns True while sometimes the frames are corrupted (probably due to high CPU load). An internal Opencv error like the following is showing on the terminal: [h264 ⓐ 0x25e99400] error while decoding MB 87 29, bytestream -5 Is there a way to catch this error? Please note that I tried the obvious try:except with cv2.error etc. In such case of corrupted frame it would be preferable to restart the connection to the (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 05:40
  Révision 118304: [Salvatore] [source:_core_/plugins/statistiques/lang/ statistiques] Export depui... - hanjo.spipⓐgmail.com Revisions : SPIP

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 04:02
  ffmpeg libfdk-aac open coder error and show The encoder timebase is not set - RodSteward Newest 'ffmpeg' Questions - Stack Overflow
  I try to encode some pcm data,and I compile ffmpeg for myself with libfdk-aac,but When I use a aac encoder,It shows timebase is not set,but aac data seems not need a timebase,and even I set the timebase,it shows the same error again here is the Initializationcode: AVCodec *pCodec; AVCodecContext *pCodecCtx = NULL; int i, ret, got_output; FILE *fp_in; FILE *fp_out; AVFrame *pFrame; uint8_t* frame_buf; int size = 0; AVPacket pkt; int y_size; int framecnt = 0; char filename_in[] = "tdjm.pcm"; AVCodecID codec_id = AV_CODEC_ID_AAC; char filename_out[] = "tdjm.aac"; int framenum = 1000; (...)
• 00:45
  ffmpeg - extract clip without reading the entire file - Fidel Newest 'ffmpeg' Questions - Stack Overflow
  I'm using the following command to extract a 30 second clip from a remote file: ffmpeg -i "\\\\some_remote_server\\c$\\Recordings\\input.ts" -vcodec copy -acodec copy -ss 300 -to 330 "C:\\Clips\\output.ts" The input file is large (gigabytes). It appears ffmpeg reads the entire file over the network in order to extract just 30 seconds. Is there a way to stop ffmpeg reading the entire file?

27 October

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 03:01
  lavf/mov: add log context dump in log message - Jun Zhao git.videolan.org Git - ffmpeg.git/rss log
  lavf/mov: add log context dump in log message add log context dump in log message. Reviewed-by: Michael Niedermayer <michaelⓐniedermayer.cc> Signed-off-by: Jun Zhao <barryjzhaoⓐtencent.com> [DH] libavformat/mov.c
• 03:00
  lavf/hls: fix the log context setting in log message - Jun Zhao git.videolan.org Git - ffmpeg.git/rss log
  lavf/hls: fix the log context setting in log message Fix the log context setting in log message Signed-off-by: Jun Zhao <barryjzhaoⓐtencent.com> [DH] libavformat/hls.c
• 18:10
  avcodec/libvpxdec: reject video and alpha dimension mismatches - Marton Balint git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libvpxdec: reject video and alpha dimension mismatches Signed-off-by: Marton Balint <cusⓐpasswd.hu> Signed-off-by: James Zern <jzernⓐgoogle.com> [DH] libavcodec/libvpxdec.c
• 18:10
  avcodec/libvpxdec: decode to custom framebuffers for vp9 - Marton Balint git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libvpxdec: decode to custom framebuffers for vp9 This avoids copying the full frame after decoding. Signed-off-by: Marton Balint <cusⓐpasswd.hu> Signed-off-by: James Zern <jzernⓐgoogle.com> [DH] libavcodec/libvpxdec.c
• 18:10
  avcodec/libvpxdec: pass decoder instances to vpx_init directly - Marton Balint git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libvpxdec: pass decoder instances to vpx_init directly If the alpha decoder init failed we presented the error message from the normal decoder. This change should prevent such mistakes. Signed-off-by: Marton Balint <cusⓐpasswd.hu> Signed-off-by: James Zern <jzernⓐgoogle.com> [DH] libavcodec/libvpxdec.c
• 18:10
  avcodec/libvpxdec: make sure BlockAdditional side data size >= 8 - Marton Balint git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libvpxdec: make sure BlockAdditional side data size >= 8 Signed-off-by: Marton Balint <cusⓐpasswd.hu> Signed-off-by: James Zern <jzernⓐgoogle.com> [DH] libavcodec/libvpxdec.c
• 18:10
  avcodec/libvpxenc: fix alpha stride - Marton Balint git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libvpxenc: fix alpha stride Signed-off-by: Marton Balint <cusⓐpasswd.hu> Signed-off-by: James Zern <jzernⓐgoogle.com> [DH] libavcodec/libvpxenc.c
• 00:37
  avformat/ftp: add AVOptions for authentication - Nicolas Frattaroli git.videolan.org Git - ffmpeg.git/rss log
  avformat/ftp: add AVOptions for authentication This introduces two new AVOption options for the FTP protocol, one named ftp-user to supply the username to be used for auth, one named ftp-password to supply the password to be used for auth. These are useful for when an API user does not wish to deal with URL manipulation and percent encoding. Setting them while also having credentials in the URL will use the credentials from the URL. The rationale for this is that credentials embedded in the URL are probably more specific to what the user is trying to do than anything set by some API user. (...)
• 05:19
  avcodec/v4l2_m2m: Fix indentation - Andriy Gelman git.videolan.org Git - ffmpeg.git/rss log
  avcodec/v4l2_m2m: Fix indentation Signed-off-by: Aman Gupta <amanⓐtmm1.net> [DH] libavcodec/v4l2_m2m.c
• 05:19
  avcodec/v4l2_buffers: Fix infinite loop - Andriy Gelman git.videolan.org Git - ffmpeg.git/rss log
  avcodec/v4l2_buffers: Fix infinite loop This part of the code counts the number of planes returned by the v4l2 device for each queried capture/output buffer. When testing the GPU h264 encoder on Nvidia's Jetson Nano, this caused an infinite loop because avbuf->buf.length included some empty buffers (i.e. where avbuf->buf.m.planes[i].length = 0), meaning that the counter was never incremented and break was never reached. This is fixed in the commit by using a well defined iteration range. Signed-off-by: Aman Gupta <amanⓐtmm1.net> [DH] (...)
• 19:39
  avformat/hls: Set AVFMT_TS_DISCONT flag on HLS input format - Philip Langdale git.videolan.org Git - ffmpeg.git/rss log
  avformat/hls: Set AVFMT_TS_DISCONT flag on HLS input format There have been many reports over the years about problems when taking an HLS stream as input to `ffmpeg` where there are timestamp discontinuities present. This is explicitly supported in the HLS spec (EXT-X-DISCONTINUITY) and often used for ad injection. Various fixes and work-arounds have been proposed over the years, but one step that seems obvious, even if it's not a complete fix, is to mark the HLS input format as supporting discontinuities. This will prevent timestamp fixup logic in ffmpeg.c kicking in that ends up (...)
• 23:38
  avcodec/adpcm: Fix invalid shifts in ADPCM DTK - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/adpcm: Fix invalid shifts in ADPCM DTK Fixes: left shift of negative value -1 Fixes: 18397/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ADPCM_DTK_fuzzer-5675653487132672 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/adpcm.c
• 23:26
  avcodec/apedec: Only clear the needed buffer space, instead of all - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/apedec: Only clear the needed buffer space, instead of all Fixes: Timeout (15sec -> 0.4sec) Fixes: 18396/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5730080487112704 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/apedec.c
• 03:30
  avcodec/nvenc: turn feature check failures into warnings - hydra3333 git.videolan.org Git - ffmpeg.git/rss log
  avcodec/nvenc: turn feature check failures into warnings Signed-off-by: Timo Rothenpieler <timoⓐrothenpieler.org> [DH] libavcodec/nvenc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:59
  Combining a few shifted streams with ffmpeg - result's expected duration is incorrect - galra Newest 'ffmpeg' Questions - Stack Overflow
  I need to combine a few streams (videos + an audio), all shifted compare to each other and in different lengths, to a file with synchronized streams. Using a dummy case, I found out the following command will create a file with the video shifted by 10sec compare to the audio, playing in full length: ffmpeg -i in.mp4 -itsoffset 10 -i in.mp4 -c copy -map 0:1 -map 1:0 -t out.mp4 if the -t flag is dismissed, the original length will be kept, and vlc would stop playing and effectively truncate the last 10sec of the video stream. With mkv however it won't be truncated, and the presented video (...)
• 19:15
  Can't avformat_open_input an .mp3 - Anthony Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to build a little C program using the ffmpeg library. However I can't even open an audio file using avformat_open_input() After setting up a function to check the error code I get the following output: Error code: -1094995529 Invalid data found when processing input And not Error code: -2 No such file or directory Which would be when I don't specify a correct file name. After looking up about what this error code means, I made the assumption that my mp3 file must be missing informations in its header that avformat_open_input() needs to recognize its extension. I have tried (...)
• 16:17
  create file with ffmpeg by for? - Hòa Hưng Ngô Newest 'ffmpeg' Questions - Stack Overflow
  I want for %i in("%image%\\*.jpg")for %%i in ("%INPUT%\\*.mp3") DO ffmpeg -i %%i -i %i -filter_complex "scale=1280:720[v]" -map '[v]' -map '[a]' -shortest -c:v libx264 -c:a copy -preset superfast "%OUTPUT%/%%~ni.mp4" but it not run.
• 16:09
  Fetching MacroBlock information in FFmpeg - Vencat Newest 'ffmpeg' Questions - Stack Overflow
  I've a .mp4 file which contain h.264 video and AAC audio. I wants to extract MacroBlock and motion vector information of each frame while decoding. Please find my below Pseudocode. avformat_open_input(file_name) //opening file avcodec_open2(pCodecContext, pCodec, NULL) // opening decoder while (response >= 0) // reading each frame response = avcodec_receive_frame(pCodecContext, pFrame); if (response == AVERROR(EAGAIN) || response == AVERROR_EOF || response I have seen in other post mentioned that we can get MB information through MpegEncContext structure, but i'm confused were and how (...)
• 13:03
  Automatically inject 360° 3D metadata into a video with a Bash script - Eduardo Perez Newest 'ffmpeg' Questions - Stack Overflow
  So, I have a Cygwin script I made which concats several videos into a single video with different variations, and I want to inject stereoscopic 3D metadata into the videos through the script so I don't have to inject each video separately using Google's injector tool. The videos are all 360° videos with top/bottom 3D and standard stereo audio rather than spacial audio, and in an MP4 container. Is there any way that I can either inject the needed 3D metadata using FFmpeg so I can upload it to YouTube as a 360VR video, or use the source code of Google's injector tool or some other tool in (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 12:12
  avcodec/vmdvideo: fix log error message - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vmdvideo: fix log error message Fixes #8339 [DH] libavcodec/vmdvideo.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 11:15
  macOS compile FFMpeg as static standalone binary - ColdSteel Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to compile ffmpeg for macOS (from macOS) as static binary for several days with no luck. Here is a script I am running to compile the FFmpeg binary cd /Users/$USER/ffmpeg/macOSBuild basePath=/macOSdependencies/DependenciesOutput export LD_LIBRARY_PATH="/Users/romanlevin/ffmpeg/macOSdependencies/DependenciesOutputbasePath/SDL2/lib/“ ../configure --disable-autodetect --pkg-config-flags="--static" --extra-cflags="-I$basePath/SDL2/include/" --extra-ldflags="-L/Users/romanlevin/ffmpeg/macOSdependencies/DependenciesOutput/SDL2/lib/" --prefix=/usr/local --enable-gpl --enable-version3 (...) --
• 10:05
  MP4 output from h264 has invalid framerate - Yanick Salzmann Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg as a library (libavcodec, libavformat) in my C++ application to put a raw h264 stream (from a camera) into an mp4 container. Essentially I am trying to mimic the behavior of the following call to the ffmpeg executable: ffmpeg -framerate 30 -i camera.h264 -c copy -f mp4 -movflags frag_keyframe+empty_moov - The code below works more or less and there are no warnings or errors from libavformat/libavcodec printed to stderr. It seems to create an acceptable mp4 file, however all players fail to show it. VLC shows the first frame or so a bit distorted and then stops, other (...)
• 02:48
  How to change metadata with ffmpeg/avconv without creating a new file? - Stephan Kulla Newest 'ffmpeg' Questions - Stack Overflow
  I am writing a python script for producing audio and video podcasts. There are a bunch of recorded media files (audio and video) and text files containing the meta information. Now I want to program a function which shall add the information from the meta data text files to all media files (the original and the converted ones). Because I have to handle many different file formats (wav, flac, mp3, mp4, ogg, ogv...) it would be great to have a tool which add meta data to arbitrary formats. My Question: How can I change the metadata of a file with ffmpeg/avconv without changing the audio (...)
• 02:40
  How to get FFmpeg to run on a video on phones SD card? - Spikekyn Newest 'ffmpeg' Questions - Stack Overflow
  So I'm developing an app that uses FFmpeg to apply LUT's to video. Im having trouble understanding how I would get FFmpeg to run the command that I gave it and exporting the video to a file on the phone. If anyone has any good sources of information that would help me I would appreciate it.

26 October

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 16:18
  lavc/qsvenc: enable vp9 encoder - Zhong Li git.videolan.org Git - ffmpeg.git/rss log
  lavc/qsvenc: enable vp9 encoder 1. must enable low_power mode since just VDENC can be supported by iHD driver right now 2. Coding option1 and extra_data are not supported by MSDK 3. IVF header will be inserted in MSDK by default, but it is not needed for FFmpeg, so disable it. Signed-off-by: Zhong Li <zhongli_devⓐ126.com> [DH] Changelog [DH] configure [DH] libavcodec/Makefile [DH] libavcodec/allcodecs.c [DH] libavcodec/qsvenc.c [DH] libavcodec/qsvenc.h
• 21:39
  avcodec/truemotion2: Fix several integer overflows in tm2_low_res_block() - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/truemotion2: Fix several integer overflows in tm2_low_res_block() Fixes: signed integer overflow: 1077952576 + 1355863565 cannot be represented in type 'int' Fixes: 16196/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION2_fuzzer-5679842317565952 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/truemotion2.c
• 21:34
  avcodec/truemotion2: Fix several integer overflows with *Yo, *Uo, *Vo - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/truemotion2: Fix several integer overflows with *Yo, *Uo, *Vo Fixes: signed integer overflow: 538976288 - -2080374792 cannot be represented in type 'int' Fixes: 16196/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION2_fuzzer-5144044274974720 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/truemotion2.c
• 23:58
  avcodec/libvorbisdec: Fix insufficient input checks leading to out of array reads - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libvorbisdec: Fix insufficient input checks leading to out of array reads Fixes: 16144/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LIBVORBIS_fuzzer-5638618940440576 Fixes: out of array read Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/libvorbisdec.c
• 21:56
  avcodec/g723_1dec: fix invalid shift with negative sid_gain - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/g723_1dec: fix invalid shift with negative sid_gain Fixes: left shift of negative value -1 Fixes: 18395/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G723_1_fuzzer-5710313034350592 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/g723_1dec.c
• 15:23
  avfilter/asrc_anoisesrc: change color variable to int - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avfilter/asrc_anoisesrc: change color variable to int Or it'll cause invalid color and s->filter is NULL. Please reproduce it with below command on big endian system: $ ./ffmpeg -f lavfi -i "anoisesrc=d=60:c=1:r=48000" -f s16le -c:a pcm_s16le -f null - Segmentation fault (core dumped) Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] (...)
• 06:59
  avformat/dss: Remove superfluous headers - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/dss: Remove superfluous headers Both attributes.h and bswap.h have been included from the very beginning of this muxer without there being any reason to do so. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/dss.c
• 17:01
  avcodec/tiff: check the black level denominator - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/tiff: check the black level denominator Fixes ticket #8327. Reviewed-by: Michael Niedermayer <michaelⓐniedermayer.cc> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/tiff.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:38
  How to extract duration time from ffmpeg output? - Louise Newest 'ffmpeg' Questions - Stack Overflow
  To get a lot of information about a media file one can do ffmpeg -i where it will output a lot of lines, one in particular Duration: 00:08:07.98, start: 0.000000, bitrate: 2080 kb/s I would like to output only 00:08:07.98, so I try ffmpeg -i file.mp4 | grep Duration| sed 's/Duration: \\(.*\\), start/\\1/g' But it prints everything, and not just the length. Even ffmpeg -i file.mp4 | grep Duration outputs everything. How do I get just the duration (...)
• 22:23
  FFMEG: run code after complete conversion - Сергей Барахтенко Newest 'ffmpeg' Questions - Stack Overflow
  There is a code that runs FFMPEG shell_exec($this->config->item('ffmpeg') . ' -i ' . $path . ' ' . $cmd . ' 1>' . $folder . '/log.txt 2>&1 '); And there is the following line, which should, taking into account the peculiarities of the PHP language, work out immediately after shell_exec $params = array( 'status' => 'ready' ); $result = $this->model->editVideo($video_key, $params); This line simply updates the status of the video in the database My question is, why doesn’t the further php code work after completion shell_exec? What could be the (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 06:21
  avfilter/avf_showfreqs: free input frame after using it - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avfilter/avf_showfreqs: free input frame after using it Fixes ticket #8336. Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavfilter/avf_showfreqs.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 13:52
  Trim video from end to 10 seconds FFMPEG [duplicate] - Роман Дэффи Newest 'ffmpeg' Questions - Stack Overflow
  This question is an exact duplicate of: Cut end of multiple videos 2 answers I've already read a lot of things. Cannot trim video from the end of ffmpeg. You need to find out the duration and delete the last 10 seconds of the video. The video in the video folder, but I can’t detect the video in a variable. Help who can! bat file: for %%i in (vids\\*) do ( MediaInfo.exe --Inform=Video;%%Duration/String3 %% video.mp4"') do set dur=%%i echo %dur% )
• 13:18
  Get video file from m3u8 playlist with ffmpeg-python - Federico Morrone Newest 'ffmpeg' Questions - Stack Overflow
  I have a m3u8 playlist from which I want to exract the video file. Right now I achieve this by downloading the playlist in a file called index.m3u8 and running this command: ffmpeg -protocol_whitelist "concat,file,subfile,http,https,tls,rtp,tcp,udp,crypto" -allowed_extensions ALL -i index.m3u8 -c copy video.mp4 Instead of downloading the file and running ffmpeg I'd rather use ffmpeg-python with the index.m3u8 content stored in a variable but I couldn't figure out how to execute the above command using this (...) -- ffmpeg-python

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 10:24
  avfilter/vsrc_testsrc: increase max level of haldclutsrc - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vsrc_testsrc: increase max level of haldclutsrc So it matches lut3d and haldclut filter. [DH] libavfilter/vsrc_testsrc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 11:35
  What is the difference between ISO BMFF and other mp4 format? - linus wang Newest 'ffmpeg' Questions - Stack Overflow
  As about. I want to play a MP4 via Media Source Extensions, but not any MP4 file can play. Please check FLV.js, it works by transmuxing FLV file stream into ISO BMFF (Fragmented MP4) segments, followed by feeding mp4 segments into an HTML5 element through Media Source Extensions API. So, What is the diference between ISO BMFF and other mp4 format? -- FLV.js
• 05:26
  FFMpeg-Normalize Doesn't Exist After Install - 123hierarchy Newest 'ffmpeg' Questions - Stack Overflow
  I'm cloning this repo. I installed ffmpeg-normalize and pip install ffmpeg-normalize returns Requirement Already Satisfied... And yet I'm getting an error that ffmpeg-normalize doesn't exist when executing the preprocess.py step: The offending code: def preprocess(audio_filename, output_filename): ext_ind = audio_filename.rfind('.wav') audio_filename_formatted = audio_filename[:ext_ind] + '-formatted.wav' try: os.remove(audio_filename_formatted) except OSError: pass try: os.remove(output_filename) except OSError: pass error = os.system( 'ffmpeg -i -acodec pcm_s16le -ac 1 -ar 16000 (...) -- this repo,
• 03:52
  ffmpeg libav: Any way to set stream info in an input format instead of searching for it? - Tricky Widget Newest 'ffmpeg' Questions - Stack Overflow
  I'm writing a player for an RTMP stream using the ffmpeg API. I know the usual way to get the stream info into an input format is with avformat_find_stream_info. And that works. However, because it's RTMP it takes a long time for it to scan enough of the stream to pick up the info. I've played with max_analyze_duration and probesize and it's a bit better, but it still takes 10-15 seconds to load. That's way too long for my application. But I'm the one making the stream on the other end, so I know exactly what's in it. It seems like it would make more sense for me to tell the input format (...)
• 02:46
  Need help getting started building http video stream from different ffmpeg output with Spring Boot? - ank Newest 'ffmpeg' Questions - Stack Overflow
  Not sure if my question is correct/clear but basically I'm trying to build an NVR application. I plan to use ffmpeg to read ip camera streams (over LAN), produce an output and allow users to view these streams (live) through the web application (possible over the internet) or through http built using Spring Boot. I would also want to give users the ability to add more ip camera streams (within the web application) and have the application automatically run ffmpeg to read and write the output then make the live stream available for viewing within the application or through http. For the (...) -- ffmpeg-cli-wrapper

25 October

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 11:12
  avcodec/adpcm: Fix undefined behavior with negative predictions in IMA OKI - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/adpcm: Fix undefined behavior with negative predictions in IMA OKI Fixes: left shift of negative value -30 Fixes: 18392/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ADPCM_IMA_OKI_fuzzer-5631771831435264 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/adpcm.c
• 01:12
  avcodec/cook: Move up and extend block_align check - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/cook: Move up and extend block_align check Fixes: signed integer overflow: 2046820356 * 8 cannot be represented in type 'int' Fixes: 18391/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_COOK_fuzzer-5631674666188800 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/cook.c
• 12:44
  avcodec/interplayacm: Fix overflow of last unused value - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/interplayacm: Fix overflow of last unused value Fixes: signed integer overflow: -2147450880 - 65535 cannot be represented in type 'int' Fixes: 18393/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INTERPLAY_ACM_fuzzer-5667520110919680 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/interplayacm.c
• 07:30
  Add support for VP9 VDPAU hwaccel decode - ManojGuptaBonda git.videolan.org Git - ffmpeg.git/rss log
  Add support for VP9 VDPAU hwaccel decode Support for VDPAU accelerated VP9 decoding was added with libvdpau-1.3. Support for the same in ffmpeg is added with this patch. Profiles related to VDPAU VP9 can be found in latest vdpau.h present in libvdpau-1.3. DRC clips are not supported yet due to http://trac.ffmpeg.org/ticket/8068 Add VP9 VDPAU to list of hwaccels and supported formats Added file vdpau_vp9.c and Modified configure to add VDPAU VP9 support. Mapped VP9 profiles to VDPAU VP9 profiles. Populated the codec specific params that need to be passed to VDPAU. Signed-off-by: Philip (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 01:12
  Converting vídeo from vp8 to x264 outputs different video with different length - Thomas Anderson Newest 'ffmpeg' Questions - Stack Overflow
  I have a webm file (vp8 codec) with 2m:39s of duration Using ffmpeg -i video.webm it says that the video have 15fps nput #0, matroska,webm, from 'video.webm': Metadata: encoder : Lavf54.17.3 Duration: 00:02:39.63, start: 0.000000, bitrate: 417 kb/s Stream #0:0: Audio: vorbis, 44100 Hz, stereo, fltp (default) Stream #0:1: Video: vp8, yuv420p(progressive), 320x240, SAR 1:1 DAR 4:3, 15 fps, 15 tbr, 1k tbn, 1k tbc (default) I tried to convert setting to the same framerate and add to a mp4 container $ x264 --output intermediate.264 --fps 15 --preset slow --bitrate 400 --vbv-maxrate 800 (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 11:26
  avfilter/vf_lut3d: increase max level to upper limit defined by cube format specification - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_lut3d: increase max level to upper limit defined by cube format specification [DH] libavfilter/vf_lut3d.c
• 22:58
  doc/filters: add one more example for libvmaf - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  doc/filters: add one more example for libvmaf [DH] doc/filters.texi
• 22:35
  doc/filters: add one more example for ssim/psnr - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  doc/filters: add one more example for ssim/psnr [DH] doc/filters.texi
• 20:07
  avformat/avienc: Remove superfluous header - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/avienc: Remove superfluous header 04d2540c added intreadwrite.h to avienc.c, although there was (and is) no need to do so. The inclusion seems to be a mistake as this commit added a AV_WL32 to avidec.c. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/avienc.c
• 20:07
  avformat/avidec: Remove superfluous header - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/avidec: Remove superfluous header bswap.h was included since 7b114c09, yet since 3788a3c0 no explicit use of anything from bswap.h has been made, so remove this header. (Only AV_RL32 is used and while this might imply swapping on big-endian systems, it is contained in libavutil/intreadwrite.h.) Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/avidec.c
• 20:07
  avformat/asfenc: Remove unnecessary header - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/asfenc: Remove unnecessary header libavutil/parseutils.h has been included in 22bbd6e8 for av_parse_time() and the header has not been removed when said function was replaced by ff_parse_creation_time_metadata() in ea1bf08a. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/asfenc.c
• 03:38
  avformat/aiffenc: Add deinit function - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/aiffenc: Add deinit function Prevents memleaks if the trailer is never written. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/aiffenc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:18
  Stream from MP4 file over RTSP with ffserver - sirlion Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to stream a mp4 file over RTSP using ffserver with no luck so far. I just want to stream directly from the file, without feeding from ffmpeg (no transcoding involved). But I've made it work with mpg video. Here is my ffserver config file: Port 8090 BindAddress 0.0.0.0 MaxHTTPConnections 2000 MaxClients 1000 MaxBandwidth 500000 CustomLog - NoDaemon RTSPPort 7654 RTSPBindAddress 0.0.0.0 Format rtp File "/home/g/video_streaming/sample3-mpeg2.mpg" Format rtp File "/home/g/video.mp4" When I launch ffserver, everything seems fine based on the log output: $ ./dev/ffmpeg/ffserver -f (...) -- in the official doc
• 22:37
  How to extract the 1st frame and restore as an image with ffmpeg? - lex Newest 'ffmpeg' Questions - Stack Overflow
  Anyone knows the trick? And how to install ffmpeg ? yum install mpeg only returns this: ======================================================================================== Matched: mpeg ======================================================================================== libiec61883.i386 : Streaming library for IEEE1394 libiec61883.x86_64 : Streaming library for IEEE1394 qffmpeg-devel.i386 : Development package for qffmpeg qffmpeg-devel.x86_64 : Development package for qffmpeg qffmpeg-libs.i386 : Libraries for qffmpeg qffmpeg-libs.x86_64 : Libraries for (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 22:02
  avfilter/vf_psnr,vf_ssim: add warning if different timebases are encountered - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_psnr,vf_ssim: add warning if different timebases are encountered [DH] libavfilter/vf_psnr.c [DH] libavfilter/vf_ssim.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:52
  Does FFmpeg video filter(eq filter) color correction work same as function sws_setColorspaceDetails? - Jahwan Oh Newest 'ffmpeg' Questions - Stack Overflow
  I'm need to use color filter with two different implementation. first one is using the function below. with conversion double m_brightness = -0.18; double m_contrast = 1.45; double m_saturation = 1.2; SwsContext *swsctx = sws_getCachedContext(NULL, vStreams[1]->codec->width, vStreams[1]->codec->height, vStreams[1]->codec->pix_fmt, dst_width, dst_height, dst_pix_fmt, SWS_BICUBIC, NULL, NULL, NULL); int *inv_table, srcrange, *table, dstrange, b, c, s; sws_getColorspaceDetails(swsctx, &inv_table, &srcrange, &table, &dstrange, &b, &c, &s); b = int((1 and the other (...) -- https://github.com/google/sagetv/blob/71d122229105e164cd410fafed2a5e7483869913/third_party/mplayer/libmpcodecs/vf_scale.c#L393, https://drive.google.com/drive/folders/181_LhkvpB4XbEf05_ecuLoy5nSSEcRiX?usp=sharing

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 18:18
  avcodec/interplayvideo: properly decode motion vectors - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avcodec/interplayvideo: properly decode motion vectors Fixes #7945 [DH] libavcodec/interplayvideo.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 19:28
  How to concatenate two or more videos with same width and different height in FFMpeg and to maintain the same aspect ratio? - Aarwil Newest 'ffmpeg' Questions - Stack Overflow
  I have five video parts to concat all. Each five videos are in the same width and height. The second part is the hstack of another 2 videos and the third part is the hstack and vstack of another 3 videos. While concat all the five video parts the aspect ratio is not maintaining in the final video. Since I am new to ffmpeg help me to sort out the problem I have tried with the command in my final with filter complex and to reduce the size I used frame per second. "ffmpeg -i final.mp4 -vf scale=1280:480 -filter:v fps=fps=30 finalNew.mp4" but nothing worked. Also help me to use hstack with (...) -- second part, third part, videochunks
• 18:51
  fmpeg: concat reduces FPS - Diamonde123 Newest 'ffmpeg' Questions - Stack Overflow
  I used ffmpeg to make one video out of 49 (those videos are 25 fps 6-15min long). ffmpeg -f concat -safe 0 -i path\\inputs.txt -c copy video.mp4 Somehow it made a video that is 80 hours long and with 3,68 framerate
• 17:42
  How can I Recording a UDP stream in segments, FFmpeg - A Person Newest 'ffmpeg' Questions - Stack Overflow
  I'm looking for a way to record a UDP stream continuously in 30 minutes segments and encode live on the GPU. I want the recording to have the date and time burned into the clip and do it continuously (24/7). I have tried the following: ffmpeg -i udp://source:port -c copy -flags +global_header -f segment -segment_time 1800 -segment_format_options movflags=+faststart -reset_timestamps 1 show_Date_Time.mp4 Date and Time are variable holding the time of when FFmpeg starts. This records my segments correctly, however, if there is a loss in signal in the stream, it FFmpeg crashes and doesn't (...)
• 16:36
  Creating a .m3u8 file for .ts files that already exist - user12267838 Newest 'ffmpeg' Questions - Stack Overflow
  I need to create an m3u8 file - either from scratch or with a program - for existing .ts files that I have. I have 10 .ts files, all are the same duration, same fps, etc.. I tried generating an m3u8, but the VLC Player shows a corrupted file every time I play it. The duration is incorrect, the video freezes at some parts while other parts play choppy and even lose all quality. I tried using FFmpeg to create a .m3u8 file for another mp4 that does not have the same content as the .ts files, but should be the same fps and the same duration of all .ts files combined. Here is the command (...)
• 16:25
  FFMPEG, the penultimate image from the .txt file doesn't show in the video - ArmKh Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create a video from the images using ffmeg. Actually, the creating of the video works but there is a small problem. I have a text file with the names of the images (paths) which I'm using in the video. The file looks like this file 'image1.jpg' file 'image2.jpg' file 'image3.jpg' file 'image4.jpg' file 'image5.jpg' And the ffmeg command is following ffmpeg -y -r 1/5 -f concat -safe 0 -i imagenames.txt -i some_audio.mp3 -c:v libx264 -vf fps=30 -pix_fmt yuv420p -t 30 output.mp4 This video should keep the frame on every image for 5 seconds. But the problem is the penultimate (...)
• 15:07
  how to capture html5 video programmatically (headless) - ygk Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to capture html5 video with js/css effects on it programmatically. I tried a couple of methods; First I find this great blog post and implemented it. Everything was perfect till I found that phantomjs is not supporting html5 video tag so can not capture the video. Second option was to use headless chrome to take continuous screenshots and feed these screenshots into ffmpeg to create the video. Although it worked to some level headless chromes screenshots was taking some time.. I couldn't create a smooth video.. On my third try I gave a chance to chrome's (...) -- blog post, is not supporting, screenshots, that, that
• 14:02
  FFmpeg Generate Thumbnail Efficiently - user1086010 Newest 'ffmpeg' Questions - Stack Overflow
  I am using FFmpeg for generating timeline thumbnail preview (image preview when your hover over seekbar in video player , like youtube player) I need generating thumbnail for every 20s . Here is code i use : ffmpeg -i vide.mp4 -vf "fps=4/60 ,scale=260:150,tile=10*10" -qscale:v 10 thumbnail_%d.jpg Code Work's Fine , only problem i have it's slow , for a movie with 3 hour long it's take more than 6 minute to generate thumbnail. My System spec : Max os x 10.12 , Core i5 6600 , 16GB Ram. I want's know there's a better way to do this (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 12:16
  avformat/bintext: avoid division by zero - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avformat/bintext: avoid division by zero Fixes #8335 [DH] libavformat/bintext.c

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 11:38
  Evolution #4396: utiliser SPIP avec MySQL 8.0 - b b Revisions : SPIP
  Perso j'utilise mariadb 10.3 et je n'ai pas de problème avec SPIP, voici deux comparatifs mariadb 10.x vs mysql 8.0 : https://mariadb.com/kb/en/library/function-differences-between-mariadb-103-and-mysql-80/ https://mariadb.com/kb/en/library/function-differences-between-mariadb-104-and-mysql-80/ Et aussi : https://mariadb.com/kb/en/library/system-variable-differences-between-mariadb-103-and-mysql-80/
• 11:12
  Evolution #4396: utiliser SPIP avec MySQL 8.0 - cy_altern - Revisions : SPIP
  Nicolas Krebs - a écrit : La branche 8.0 de MySQL est sortie en 2018. À mon avis, il serait bon que SPIP puisse fonctionner avec => certes "...il serait bon..." mais ça veut dire qu'il faut d'abord résoudre tous les problèmes liés aux changements de paramétrages par défaut de MySQL (sql_mode) non compatibles actuellement et cela sans passer par des modifications de la configuration du serveur: cf https://core.spip.net/issues/4364 , https://core.spip.net/issues/4353 et https://core.spip.net/projects/spip/repository/revisions/24387 entre (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 11:14
  Videos which don't play in Firefox: How to detect and how to fix? - Max Williams Newest 'ffmpeg' Questions - Stack Overflow
  I have, as test cases, two mp4 videos: they seem to be encoded the same, but one works in Firefox and one doesn't: bad.mp4 (doesn't work) view download good.mp4 (does work) view download (NOTE - I thought that the "view" links above would open them using the browser's built-in player, but it looks like they use Dropbox's video player, which DOES work in firefox. So, to see it in firefox, download it and then drag it into Firefox or right click and choose Firefox from "open with" - thanks!) They both play in Chrome. There is a long discussion on the Mozilla bug tracking site about a (...) -- view, download, view, download, https://bugzilla.mozilla.org/show_bug.cgi?id=1130450, view, download, view, download

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 10:37
  Evolution #4396 (Nouveau): utiliser SPIP avec MySQL 8.0 - Nicolas Krebs - Revisions : SPIP
  La branche 8.0 de MySQL est sortie en 2018. À mon avis, il serait bon que SPIP puisse fonctionner avec, et que la compatibilité soit indiquée dans https://www.spip.net/fr_article4351.html . Changelog : https://dev.mysql.com/doc/refman/8.0/en/mysql-nutshell.html

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 09:05
  How do I enable FFMPEG logging and where can I find the FFMPEG log file? - undefined Newest 'ffmpeg' Questions - Stack Overflow
  I want to be able to log FFMPEG processes because I am trying to work out how long a minute of video takes to convert to help with capacity planning of my video encoding server. How do I enable logging and where is the log file saved. I have FFMPEG installed on a CentOS LAMP machine.
• 08:04
  Where to put compiled FFmpeg files? - Spikekyn Newest 'ffmpeg' Questions - Stack Overflow
  So I'm attempting to build an android app that uses the LUT3D part of the FFMpeg libraries to edit video. I'm pretty new to this so I'm having difficulty understanding how to get it to function in Android Studio. I currently am using WritingMinds ffmpeg-android-java to try and get it to work. But I'm pretty lost as what to even do with the files. Most of the stuff I've found has been pretty old so I'm not sure if it's still valid. Any help would be (...)
• 07:56
  How to extract audio with youtube-dl on Windows - FlyingNimbus Newest 'ffmpeg' Questions - Stack Overflow
  I want to extract audio from a video downloaded with youtube-dl on Windows. I got youtube-dl working, but am unable to extract the audio. This problem is caused due to not having the correct audio codes installed. When I try to extract audio it tells me the following: WARNING: unable to obtain file audio codes with ffprobe The youtube-dl manual says: -x -extract-audio convert video files to audio-only files (requires ffmpeg or avconv and ffprobe or avprobe) How do I install ffprobe or ffmpeg? Do I install this on Windows, or do I install this as a Python extension? My OS is Windows (...)
• 01:46
  Using Windows named pipes with ffmpeg pipes (Doesnt work) - Estr Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to send audio and video RAW through c# pipes to FFMPEG, I've been reading and trying to follow what's shown here: https://docs.microsoft.com/en-us/dotnet/api/system.io.pipes.namedpipeserverstream?view=netframework-4.8 This a fragment of the code... NamedPipeServerStream p_1; NamedPipeServerStream p_2; p_1 = new NamedPipeServerStream("p_1", PipeDirection.Out, 1, PipeTransmissionMode.Byte); p_2 = new NamedPipeServerStream("p_2", PipeDirection.Out, 1, PipeTransmissionMode.Byte); p_1.WaitForConnection(); p_2.WaitForConnection(); ....... I run this command in FFMPEG: ffmpeg.exe (...) -- https://docs.microsoft.com/en-us/dotnet/api/system.io.pipes.namedpipeserverstream?view=netframework-4.8
• 01:23
  FFMPEG Concatenate X video at time from a list.txt - Lorenzo Castagnone Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to concatenate 3 videos at time from a list.txt, i can concatenate all the videos in the list in a single long video, but i wish to concatenate x videos from the list in a single output, then concatenate the next x videos from the same list in another single output and so on. The script i'm developing it's written in python, it fetches some videos from a server and save them locally in a folder and write my concat.txt, then ffmpeg read the concat.txt and create a single output.mp4 #this merge all video in concat file in a single output os.system("ffmpeg -f concat -i (...)
• 00:59
  Simples loop to iterate over files and send them to ffmpeg - user2752471 Newest 'ffmpeg' Questions - Stack Overflow
  I want to do a shell script that will iterate over several video files in a directory, send everyone of them to ffmpeg, that will then reencode each one, producing a reencoded file that will have the same name as the original, except with .avi extension instead .mkv or .mp4. I found a fairly simple script in another topic here on SO, tried to change it slightly to take into account the file extension and the destination directory. However my script only produces countless "anything: No such file or directory" Here is it: $ for f in $(find -type f -name *.mkv); do ffmpeg -n -i "$f" -c:v (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 00:12
  Evolution #4391: Squelettes de la dist : améliorer le markup et passer à BEM - nicod _ Revisions : SPIP
  Bon, toutes ces discussions sur l'architecture des css c'est super intéressant, mais il ne faudrait pas transformer la dist en un truc incompréhensible. Il faut qu'elle reste simple et accessible, quand même. Je suis pour un peu de nommage BEM, pour rationaliser les noms des classes et donner le bon exemple, sans aller trop loin non plus.

24 October

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 13:37
  avfilter/vf_lut3d: allocate 3d lut dynamically - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_lut3d: allocate 3d lut dynamically [DH] libavfilter/vf_lut3d.c
• 15:36
  fftools/ffmpeg: Free swresample dictionary during cleanup - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  fftools/ffmpeg: Free swresample dictionary during cleanup Freeing this was forgotten in ad899522. Fixes #8315 and #8316. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] fftools/ffmpeg.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:20
  Chain encoding MP4 to FLAC on GAE using FFmpeg - Igniter Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to encode MP4 to FLAC on GAE instance. I have the functions chain where ffmpeg is synchronously invoked several times. All those functions work great except this final snippet which dies without errors on GAE. const ffmpegPath = require('ⓐffmpeg-installer/ffmpeg').path; const ffmpeg = require('fluent-ffmpeg'); ffmpeg.setFfmpegPath(ffmpegPath); ffmpeg(`/tmp/$iid/$file`) // file.mp4 .outputOptions(['-c:a flac','-sample_fmt s16','-ar 16000','-ac 1']) .on('end', () => console.log('All went OK!')) .on('error', console.log) .save(`/tmp/$iid/$file.split('.')[0].flac`); Looks like I (...)
• 22:40
  nodejs ffmpeg works in local but not in production - HUNG Newest 'ffmpeg' Questions - Stack Overflow
  var proc = ffmpeg() .input('./public/img/capture/photoframe.png') .input( scenePath + '%04d.png') .inputFPS(15) .input( msgPath + '%04d.png') .inputFPS(15) .input( path + data + '.' + ext ) .complexFilter([ "[3:v]scale=668:-1[scaledUGC]", "[0]overlay=66:155[output0]", "[output0][scaledUGC]overlay=66:155[output1]", "[output1][1]overlay=66:155[output2]", "[output2][2]overlay=66:155[output3]", "[output3][0]overlay=0:0[output4]" ], 'output4') .outputFPS(15) .on('start', function(command) if (env === 'development') console.log(new Date()); console.log('Start with command:'+command); ) // (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 21:42
  doc/filters: fix another typo - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  doc/filters: fix another typo [DH] doc/filters.texi
• 15:30
  avcodec/interplayvideo: cosmetics - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avcodec/interplayvideo: cosmetics [DH] libavcodec/interplayvideo.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:47
  Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height - Rocky Singh Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to convert an avi video file to flv format via FFMPEG with the following command: -i C:\\files\\input\\test.avi -y -ab 448k -ar 48000 -vcodec mpeg4 -s 640x480 -f flv C:\\files\\output\\test.flv Here is the response I am getting from ffmpeg: Input: Input #0, avi, from 'C:\\files\\input\\test.avi': Metadata: encoder : VirtualDubMod 1.5.10.2 (build 2540/release) Duration: 00:01:00.00, start: 0.000000, bitrate: 1813 kb/s Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 640x272 [SAR 1:1 DAR 40:17], 25 tbr, 25 tbn, 25 tbc Stream #0:1: Audio: ac3 ([0] [0][0] (...)
• 20:14
  Batch Script to Download Video with youtube-dl and Convert with FFmpeg - Matt McManis Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to Using a single batch script to Download an mp4 video using youtube-dl Save the video's original title to a batch variable Convert the video to webm with FFmpeg I want to keep the original title, so it needs to read the title with youtube-dl, save it to a variable, and use that variable for FFmpeg input/output filename. CMD Batch 1. Download Video youtube-dl -f best "https://www.youtube.com/watch?v=TWNhqCHw0qc" -o "C:\\Users\\Matt\\Downloads\\%%(title)s.mp4" --merge-output-format mp4 2. Download Video using Loop This is used to save the title to a variable %%a. for /f (...) -- youtube-dl, FFmpeg
• 20:11
  Is a any way of piping input to deepspeech under Linux? - Unreal Admin Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to continually stream audio from my IP camera to a server running deepspeech to decode the audio stream to text in realtime using FFMPEG. I am using the following command : $ffmpeg -i rtsp://192.168.1.249:8080/h264_pcm.sdp -ar 16000 -ac 1 -acodec pcm_s16le -vn -f wav - | deepspeech --model deepspeech-0.5.1-models/output_graph.pbmm --alphabet deepspeech-0.5.1-models/alphabet.txt --lm deepspeech-0.5.1-models/lm.binary --trie deepspeech-0.5.1-models/trie --audio - Deepspeech: FileNotFoundError: [Errno 2] No such file or directory: '-' deepspeech doesn't like the '--audio -' (...)
• 19:55
  Change youtube-dl download output (Windows) - Inforcer25 Newest 'ffmpeg' Questions - Stack Overflow
  I hope you can help me. I am using youtube-dl on windows (youtube-dl.exe) Downloading the video works great and also just the audio. But what i want is for it to save the audio file in a different place eg. C:\\Users*******\\Desktop I made a batch file with this code: :audio cls echo. echo. echo Your audio vill be downloaded and saved as a .mp3 format echo. echo. set /p audio=Enter Video URL here: cls youtube-dl.exe --extract-audio --audio-format mp3 --output C:\\Users\\*******\\Desktop\\(ext)s.%(ext)s %audio% pause cls echo. echo. echo. echo. echo Your audio has now been downloaded. ping (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 19:09
  Evolution #4391: Squelettes de la dist : améliorer le markup et passer à BEM - RastaPopoulos ♥ Revisions : SPIP
  En ce qui concerne l'architecture, la conception, proprement dite, de ITCSS, le inverted triangle correspond quasiment parfaitement au design atomique décrit par Brad Frost et son ordre de priorité (2013). Qui va même plus loin puisqu'après les "molécules" (composants réutilisables), il sait bien que dans la réalité, même s'il faut les limiter au maximum, il y a aussi des morceaux pas réutilisables et qui sont encore plus spécifiques, et il y a donc les "organismes" (sections d'une page), "templates" (styles communs à toutes les pages d'un même type), "pages" (style propre à une page précise, (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 19:02
  How to add background image for text with text size on a video in FFmpeg? - manwtein Newest 'ffmpeg' Questions - Stack Overflow
  Is there way to add a background image under the text on the video in FFmpeg? I can add black background using 'box', but i need to add some certain image. I tried to use 'drawtext' on a image and then overlayed it on the video, but i don't know text's width and height for scaling the image. "-i", "D:/AndroidProjects/Movies/VideoSamples/VideoShort1.mp4", "-i", "D:/AndroidProjects/Movies/ImageSamples/SampleImage.jpeg", "-filter_complex", "[0:v]drawtext=text='Example':fontcolor=#DB7093:fontsize=120:box=1:boxcolor=blackⓐ0.8:boxborderw=5:x='(w/2) - (tw/2)':y='h - ((h/2) - (th/2))", "-s", (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

• 17:45
  Evolution #4391: Squelettes de la dist : améliorer le markup et passer à BEM - tcharlss (*´_ゝ｀) Revisions : SPIP
  Oui l'ancienne dist en plugin, bonne idée. Il va falloir que je regarde de plus près ITCSS et dans BEMIT. La vidéo sur ITCSS est intéressante, je vois l'idée générale, après pour la mise en application des concepts, va falloir regarder des exemples concrets. Par exemple je vois pas trop la différence entre objet et composant pour l'instant. Enfin bref. Est-ce que quelqu'un avec les droits suffisants pourrait éditer le 1er message et y ajouter le lien vers le pad au début ? https://demo.codimd.org/2K_7KrSoT1G2fKnVaYoUvQ# Merci (...)
• 17:06
  Evolution #4391: Squelettes de la dist : améliorer le markup et passer à BEM Revisions : SPIP
  Comme il y a passage de version 3.4, on peut se permettre de péter des choses, il me semble. Cela évitera d'alourdir le cahier des charges de la dist en maintenant un double code pour conserver la retro-compatibilité Mais en effet pour respecter les vieux sites, un peu à comme pour grenier, il faudrait proposer un plugin dist-vieille.
• 17:00
  Evolution #4391: Squelettes de la dist : améliorer le markup et passer à BEM - nicod _ Revisions : SPIP
  Justement, je suis en train de m'intéresser à BEMIT Un article ici avec pas mal de ressources : https://www.xfive.co/blog/itcss-scalable-maintainable-css-architecture/ Sinon, sur le fond de la refonte de la dist, ça risque de péter pas mal de sites qui utilisent la dist actuelle telle quelle, ou un peu adaptée. Je me disais qu'on pourrait peut être faire un plugin de la dist actuelle, telle quelle, que les gens pourraient installer s'ils veulent la garder.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 16:13
  AJAX upload file with progres + FFMPEG progress - Сергей Барахтенко Newest 'ffmpeg' Questions - Stack Overflow
  The task is to implement the following: 1. On the page there is a form for downloading a file, the file should be loaded asynchronously, without rebooting with the help of AJAX and displaying the upload progress 2. If the file is successfully downloaded, send a command to the server, which should check the queue, and if the queue is empty, inform the client that the processing of the file has begun, then start the processing itself 3. If processing has begun, then show the progress of this processing What did you manage to implement File upload was successfully implemented, after a (...) -- link
• 17:37
  h264 inside AVI, MP4 and "Raw" h264 streams. Different format of NAL units (or ffmpeg bug) - bukkojot Newest 'ffmpeg' Questions - Stack Overflow
  TL;DR: I want to read raw h264 streams from AVI/MP4 files, even broken/incomplete. Almost every document about h264 tells me that it consists of NAL packets. Okay. Almost everywhere told to me that the packet should start with a signature like 00 00 01 or 00 00 00 01. For example, https://stackoverflow.com/a/18638298/8167678, https://stackoverflow.com/a/17625537/8167678 The format of H.264 is that it’s made up of NAL Units, each starting with a start prefix of three bytes with the values 0x00, 0x00, 0x01 and each unit has a different type depending on the value of the 4th byte right (...) -- , , , , , ,
• 17:27
  How can i get constant output bitrate for fluent-Ffmpeg conversion of m3u8 video stream to audio stream - Rushikesh Phalke Newest 'ffmpeg' Questions - Stack Overflow
  I am using fluent-FFmpeg to convert m3u8 video stream to audio stream. the audio stream I am getting as output has a variable bitrate. How can I achieve getting constant bitrate instead of a variable bitrate? I have tried providing .addOption('-b:a 48k') .addOption('-bufsize 48k') to keep constant bitrate of 48kbps. But that didn't work. Here is the code sample : const ffmpeg = require('fluent-ffmpeg'); const Transform = require('stream'); let dest = new Transform( transform: (chunk, enc, next) => //chunk duration next(null, chunk); ).on('data', () => ); let m3u8_url = (...)
• 15:30
  m3u8 video stream to audio stream conversion using fluent-ffmpeg in node - Rushikesh Phalke Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to get transcriptions for the m3u8 live video stream using google cloud speech to text. now for that, I need to convert m3u8 video stream to the audio stream and then I can pass this stream to google speech to text. I am using fluent-FFmpeg for conversion. I have created a transform stream, in which audio chunks are getting written by FFmpeg. Now I want the duration and bitrate of each chunk. How can I find the duration and bitrate of each chunk ?? I have tried using the music-metadata library, but that is not giving the correct results. Here is the code sample for the (...)
• 09:40
  Making Image Slideshows from Linux Graphic Tools [on hold] - Volomike Newest 'ffmpeg' Questions - Stack Overflow
  How do I make image slideshows as a video file via 4 small jpegs (128px x 128px) and Linux command-line graphic tools? I need to vary the slideshow transitions with: fade to/from black slide left/right while fading to next image If you're curious, we plan to make videos we can put into mobile phones for real estate listings. (We already have the technology to convert Ogg Theora into proprietary mobile formats.)
• 13:21
  Creating a transparent color mask that covers half of every frame in a video with opencv/moviepy/ffmpeg - Nyktofob Newest 'ffmpeg' Questions - Stack Overflow
  I'm doing a pose estimation in rats separated into two compartments of a cage. To make my tracking better I want to put a transparent color mask that covers half of every frame so that one of the rats will appear to the neural net as being of different color, thus making it easier for the net to differentiate those rats. My question is: Is there any easy way to do this using python (moviepy/opencv/ffmpeg)? Bare in mind, I'm completely new to python, so I'd appreciate any recommendation of a tutorial or detailed answer. I tried using blender to do this, but failed miserably. I expect to (...)
• 12:24
  How to sync multiple rtsp inputs in ffmpeg? - KOMsandFriends Newest 'ffmpeg' Questions - Stack Overflow
  I am combining multiple rtsp streams from local network cameras to a single output using ffmpeg. In the resulting video, the videos are out of sync. ffmpeg -loglevel warning \\ -f image2 -loop 1 \\ -i logo.png \\ -rtsp_transport tcp -thread_queue_size 1024 \\ -i "rtsp://10.0.0.1" \\ -rtsp_transport tcp -thread_queue_size 1024 \\ -i "rtsp://10.0.0.2" \\ -rtsp_transport tcp -thread_queue_size 1024 \\ -i "rtsp://10.0.0.3" \\ -filter_complex "[3:v][2:v][0:v][1:v]xstack=inputs=4:layout=0_0|w0_0|0_h0|w0_h0[v]" \\ -map "[v]" \\ -filter_complex "[1:a][1:a]amerge=inputs=2[aout]" -map "[aout]" \\ -vcodec (...)