14 May

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

• 09:12
  How to read sei unregistered user data from ffmpeg in H264? - glowry Newest 'ffmpeg' Questions - Stack Overflow
  First, I set the user_data to video by bsf. For example, ffmpeg -i dump.flv -c:v copy -bsf:v h264_metadata=sei_user_data='086f3693-b7b3-4f2c-9653-21492feee5b8+hello' dump_sei.flv Ant then I use the api to read sei unregistered_user_data by ffmpeg after h264 encode, but I didn't get it. // avcodec_send_packet // avcodec_receive_frame // ... H264Context *h = m_pVidDecodeCtx->priv_data; H264SEIContext sei = h->sei; H264SEIUnregistered unregistered = sei.unregistered; if (unregistered.buf_ref != NULL)  (...)
• 08:36
  Python FFmpeg: Getting this error while trying to add a logo to video (Unable to find a suitable output format for ..) - prehistoricbeast Newest 'ffmpeg' Questions - Stack Overflow
  Hey guys I want to add a logo to my video with ffmpeg but I am getting this error while running the below command. What is the reason? Please do help. Unable to find a suitable output format for 'overlay=x=main_w-overlay_w-(main_w*0.01):y=main_h-overlay_h-(main_h*0.01)' overlay=x=main_w-overlay_w-(main_w*0.01):y=main_h-overlay_h-(main_h*0.01): Invalid argument. subprocess.call([settings.VIDEO_ENCODING_FFMPEG_PATH, '-i', input_file_path, '-i', logo_path, '-filter_complex','scale=1920:1080',  (...)
• 08:21
  FFMPEG is not writing the correct video duration in the output playlist file for HLS - user2726634 Newest 'ffmpeg' Questions - Stack Overflow
  I have 5 cameras each having an RTSP stream. I am converting that rtsp stream to HLS. This is the command I am using: ffmpeg -rtsp_transport tcp -i rtsp://*:*ⓐ*:*/ -f hls -codec copy -strftime 1 -strftime_mkdir 1 -hls_time 10 -hls_list_size 360 -hls_segment_filename %Y%m%d/%H/%M%S.ts playlist.m3u8 The command gives the right output for 2 of the cameras. For the rest, the playlist files always has the incorrect duration (It is supposed to be 10 (...)
• 07:47
  Converted video is getting blur in FFMpeg - Maneesh Rao Newest 'ffmpeg' Questions - Stack Overflow
  I have a video and converted to mp4 format. I am using FFMpeg to convert the video. Video conversion is successfully done but video is getting blur. any Help? $fileName = "convertedVideoFile.mp4"; $mp4File = "oldVideoFile.mp4"; $format = new X264('aac', 'libx264'); // create object $ffmpeg = FFMpeg::create([ 'ffmpeg.binaries' => exec('which ffmpeg'), 'ffprobe.binaries' => exec('which ffprobe'), 'timeout' => 3600, // The timeout for the underlying process  (...)
• 05:38
  How to merge several videos in a grid, in one video? [closed] - Kayra Uckilinc Newest 'ffmpeg' Questions - Stack Overflow
  I have 36 video files with same dimensions and want to concatenate them into a one single video with 6x6 grid. Ideally is non-square number of videos are given for example 12, a 4x3 grid as the most square it can be would be great. I tried with matplotlib's animation library but failed to concatenate videos in both directions first as row then as columns. Any help is appriciated!
• 02:03
  How to add watermark to video in Flutter using Flutter_ffmpeg - user433575 Newest 'ffmpeg' Questions - Stack Overflow
  I cannot figure out why my ffmpeg commands aren't working... Future watermark(filePath, width, height) async final String outPath = 'watermarked.mp4'; final String inputVideo = await rootBundle.loadString('assets/ffmpeg/demo.mov'); final String inputWatermark = await rootBundle .loadString('assets/ffmpeg/video_overlay.png'); final arguments = '-i $inputVideo -i $inputWatermark -filter_complex overlay=10:10 -codec:a copy $outPath'; final int rc = await (...)
• 01:44
  Kill child process only after readFile() Node js Electron - Radespy Newest 'ffmpeg' Questions - Stack Overflow
  I'm using an imported ffmpeg binary ffmpeg-static-electronin an Electron-React app (on Windows Pro 10) and want to delete a saved cropped video and then kill the child process afterwards from my Main process. The overall aim is to crop a video of the whole screen following capture and then send the cropped video to a renderer. const fsPromises = require('fs').promises const ffmpeg = require('ffmpeg-static-electron') const execFile = require("child_process") ipcMain.on("windoze_capture_screen:video_buffer", async (event, buffer) => (...)
• 01:42
  ffmpeg IP camera unable to record - trycatch22 Newest 'ffmpeg' Questions - Stack Overflow
  I am using an Amcrest POE camera. I have assigned it a static IP which I am able to confirm by logging into it via the browser. Its IP is 192.168.1.200. I tried following the instructions in this link but couldn't get it to work. I get: http://admin:adminⓐ192.168.1.200/dd-a End of file The official ffmpeg documentation does not talk about -segment_time or -segment_format. What is the ffmepg command to grab a stream for a fixed duration and write it to an .mp4 (...)
• 02:38
  offloading to ffmpeg via named pipes in c#/dotnet core - bep Newest 'ffmpeg' Questions - Stack Overflow
  I tried to break this down to the base elements so I hope this is clear. I want to take in a network stream, it may be a 1 way, it may be a protocol that requires 2 way communication, such as RTMP during handshake. I want to pass that stream straight through to a spawned FFMPEG process. I then want to capture the output of FFMPEG, in this example I just want to pipe it out to a file. The file is not my end goal, but for simplicity if I can get that far I think I'll be ok. I want the code to be as plain as possible and offload the core processing to FFMPEG. If I ask FFMPEG (...)

13 May

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

• 09:04
  lavfi/dnn_backend_native_layer_avgpool.h: Documentation - Shubhanshu Saxena git.videolan.org Git - ffmpeg.git/rss log
  lavfi/dnn_backend_native_layer_avgpool.h: Documentation Add documentation for Average Pool Layer Signed-off-by: Shubhanshu Saxena <shubhanshu.e01ⓐgmail.com> [DH] libavfilter/dnn/dnn_backend_native_layer_avgpool.h

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

• 23:23
  Timestamp not printed on thumbnails with FFMPEG - mlatelcom Newest 'ffmpeg' Questions - Stack Overflow
  I have a script using FFMPEG to generate an image with tiled thumbnails every 45 seconds for several videos on a given folder. The images are named with the name of the video it was generated from. It generates the thumbnails for each video but it does not print the time stamps on them. The path to the font file is correct; so I don't know where the issue is. I'm using the script in Fedora Linux. Here is the FFMPEG command line code on the script: ffmpeg -ss 00:00:05 -i test.mp4 -loglevel 40 -frames 1 -bt 20M -vf (...)
• 22:03
  Creating an adaptive HLS stream from MP4 files with multiple bitrates without re-encoding - user15180344 Newest 'ffmpeg' Questions - Stack Overflow
  I have an MP4 video already encoded to multiple resolutions/bitrates in separate file for each quality. I'd like to package it into HLS adaptive streaming without re-encoding. I know I can use the following command to get a single bitrate HLS: $ ffmpeg -i input.mp4 -codec: copy -start_number 0 -hls_time 10 -hls_list_size 0 -f hls output.m3u8 However I can't find a way to do the same for multiple video files (the same video in different resolutions), combining the whole output in a master playlist. All the examples I have found that produce a multibitrate/adaptive (...)

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

• 22:06
  avformat/utils: Fix NPD when allocating AVStreamInternal fails - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/utils: Fix NPD when allocating AVStreamInternal fails Regression since b9c5fdf6027010d15ee90a43aa023e45a5189097; fixes Coverity ID #1484786. Also remove the check for st->internal->parser as av_parser_close(NULL) is a no-op. Reviewed-by: James Almer <jamrialⓐgmail.com> Reviewed-by: Marton Balint <cusⓐpasswd.hu> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavformat/utils.c

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

• 20:49
  Why does FFmpeg not recognize this HEX color? - John Matley Newest 'ffmpeg' Questions - Stack Overflow
  I have a simple FFmpeg command (run from BAT file) which will overlay 2 bars of color onto a background image. The first color (FF0000) works great, but the second (212121) outputs a grey bar and not the HEX color I specified. Here's what I have so far: ffmpeg-y -i background.png -f lavfi -i color=ff0000:size=1280x720,format=rgba -f lavfi -i color=212121:size=1280x720,format=rgba -filter_complex "[1:v]rotate=-30*PI/180:c=none:ow=rotw(iw):oh=roth(ih)[box];[0:v][box]overlay=500:200[corner];[corner][2:v]overlay=0:600[output]" -map "[output]" -frames:v 1 output.png Any (...)
• 20:28
  I want to use Xabe.FFmpeg to convert the video size, but I found that I may be stuck in a deadlock problem - HalfLucky Newest 'ffmpeg' Questions - Stack Overflow
  I now use WPF to develop the function of importing video. I want to add a code to convert the video size, but every time the program runs to this line of code, my program will deadlock here. public MyRelayCommand ImportMovieCmd => new Lazy>(() =>new MyRelayCommand(ImportMovie)).Value; private async void ImportMovie(string mediaType) string[] pathlist = ExecuteSelectFileDialog(mediaType); if (pathlist == null || pathlist.Length == 0) return; foreach (var path in pathlist) ... await (...)
• 20:27
  how to make cv2.videoCapture.read() faster? - Yu-Long Tsai Newest 'ffmpeg' Questions - Stack Overflow
  My question : I was working on my computer vision project. I use opencv(4.1.2) and python to implement it. I need a faster way to pass the reading frame into image processing on my Computer(Ubuntu 18.04 8 cores i7 3.00GHz Memory 32GB). the cv2.VideoCapture.read() read frame (frame size : 720x1280) will take about 120~140ms. which is too slow. my processing module take about 40ms per run. And we desire 25~30 FPS. here is my demo code so far: import cv2 from collections import deque from time import sleep, time import (...)
• 20:26
  FFMPEG dropping frames due to color space mismatch - Ismir Egal Newest 'ffmpeg' Questions - Stack Overflow
  I've got two png image sequences with 30 frames each i'm trying to blend together. The problem is that some of the images are in the rgb24 color space while some are in rgba. Blending the two 30-frame animations together causes it to loose frames - the output is only 26 frames long and the two individual strips out-of-synch. Command used: ffmpeg -i a_%04d.png -i b_%04d.png -c:v libvpx -crf 4 -b:v 20M -filter_complex "blend=average" ab.webm Result: Input #0, image2, from 'a_%04d.png': Duration: 00:00:01.20, start: 0.000000, bitrate: (...)
• 19:51
  Add coverart into ogg containing an opus audio stream with ffmpeg without re-encoding the audio stream - SebMa Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to add a coverart into an ogg file with ffmpeg : Here are my source.ogg and source.jpg files : $ ffprobe -hide_banner source.ogg Input #0, ogg, from 'source.ogg': Duration: 00:03:02.45, start: 0.007500, bitrate: 73 kb/s Stream #0:0: Audio: opus, 48000 Hz, stereo, fltp Metadata: DURATION : 00:03:02.441000000 ENCODER : Lavf58.20.100 $ identify source.jpg source.jpg JPEG 480x360 480x360+0+0 8-bit DirectClass 15.1KB 0.000u 0:00.000 I tried this : $ ffmpeg -hide_banner -i (...)
• 18:49
  Object detection in video file (ffmpeg & tensorflow ?) - totolino Newest 'ffmpeg' Questions - Stack Overflow
  I would like to scan several video files for person in it. Best way would be with ffmpeg and something like tensorflow. tensorflow checks for persons in it, ffmpeg cuts the rest and the result is a video which only contains the frames with persons in it. Is there a way to do this?
• 17:40
  Not best results for [screen capture] streaming with ffmpeg js - Nikola Lukic Newest 'ffmpeg' Questions - Stack Overflow
  Platform: Windows 10 Ffmpeg version 4.4-full_build-www.gyan.dev This app works fine on macos. node websocket-relay.js supersecret 8081 8082 http-server --host=https://localhost --port 8080 ffmpeg -f gdigrab -i desktop -framerate 30 -video_size 640x480 -f mpegts -codec:v mpeg2video -s 640x480 -rtbufsize 100M -b:v 1000k -bf 0 http://localhost:8081/supersecret Logs: frame= 5515 fps= 20 q=31.0 size= 8302kB time=00:04:36.20 frame= 5526 fps= 20 q=31.0 size= 8317kB time=00:04:36.77 frame= 5537 fps= 20 q=31.0 size= 8331kB time=00:04:37.31 (...) --
• 16:45
  Bash: Create copy of music files in different format and folder - Brett Sjoholm Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create a bash scipt to simply automate finding my flac files and creating an alac copy of them in a separate folder. Just so I have my little itunes folder. Want to automate because so many. So I find my flac folders within my Eminem folder.... :~$ find /mnt/music/Eminem -type d -name *FLAC /mnt/music/Eminem/2009 Relapse FLAC /mnt/music/Eminem/1996 Infinite FLAC /mnt/music/Eminem/1999 The Slim Shady LP FLAC /mnt/music/Eminem/2000 Marshall Mathers LP FLAC Now instead of going into each folder and converting manually using something (...)
• 15:49
  Is it possible to stream 2 vertically stacked videos with FFPlay? - Reino Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to open a remote lecture video (mp4[h264+aac]) accompanied by several slides (jpg) with ffplay where I would like to vertically stack both streams. Downloading with ffmpeg is no problem: ffmpeg -i \\ -loop 1 -i "https://.../slide_0001.jpg" \\ ... -loop 1 -i "https://.../slide_0054.jpg" \\ -lavfi " [1:v]trim=duration=10.000[img1]; ... [54:v]trim=duration=30.500[img54]; [img1][...][img54]concat=n=54, crop=1454:818:224:27, scale=w=640:h=360:flags=spline, fps=25[slides]; [slides][0:v]vstack " -c:v ... (...)

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

• 15:35
  doc/filters: correct name for guided filter - Gyan Doshi git.videolan.org Git - ffmpeg.git/rss log
  doc/filters: correct name for guided filter Note input requirements and reword option sub description. [DH] doc/filters.texi
• 14:17
  Revert "avcodec/adpcm: Set vqa_version before use in init" - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  Revert "avcodec/adpcm: Set vqa_version before use in init" Redundant with ff946633a30e15415974c3f0ec7751c04eb91701. Found-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> This reverts commit 7a403da0cb8e5fe308fe307b7ed219110f7021e0. [DH] libavcodec/adpcm.c

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

• 15:02
  Convolv multi-channel IR with mono audio using commandline (sox, ffmpeg, etc.) - David Healey Newest 'ffmpeg' Questions - Stack Overflow
  How can I apply a multichannel impulse response to a mono audio file with the resulting audio file being stereo? I'd like to do this from the commandline.
• 14:44
  develop with ffmpeg link failed [duplicate] - Turing Zhu Newest 'ffmpeg' Questions - Stack Overflow
  I write to test ffmpeg and call ffmpeg function, but it alwasy tell me link err: can not found ffmpeg function: this is my code: #ifdef __STDC_CONSTANT_MACROS #define __STDC_CONSTANT_MACROS #endif #ifndef INT64_C #define INT64_C(c) (c ## LL) #define UINT64_C(c) (c ## ULL) #endif #include #include #include #include static const char *src_filename = NULL; static const char *video_dst_filename = NULL; static const char *audio_dst_filename = NULL; static AVFormatContext *fmt_ctx = NULL; int main(int argc, char **argv) (...)
• 13:43
  No ffmpeg exe could be found. | Kivy - Mr. Anonymous Newest 'ffmpeg' Questions - Stack Overflow
  I made a YouTube Video Downloader with kivy. It should download the video with pytube and extract the audio with moviepy. But when I ran the apk, I get the error that no ffmpeg exe could be found. Did i forgot to include something in the requirements? Here is the python code without the kivy-ui: import moviepy.editor as mp my_clip = mp.VideoFileClip(path_to_video) my_clip.audio.write_auduofile("Test.mp3") Requirements from spec (...)
• 13:11
  how to make this ffmpeg concat better or fast? - JohnTerry Newest 'ffmpeg' Questions - Stack Overflow
  I am using this command to concat video urls and producing output video as .webm but it is very slow how do i make this faster ? command is - cmd = "ffmpeg -safe 0 -f concat -protocol_whitelist file,http,https,tcp,tls,crypto -segment_time_metadata 1 -i -vf select=concatdec_select,scale=: -af aselect=concatdec_select,aresample=async=1 -c:v libvpx-vp9 -crf 30 -b:v 0 -b:a 128k -c:a libopus ".format(text_file_path, width, height, output_video_path)
• 11:39
  (FFmpeg) VP9 Vaapi encoding to a .mp4 or .webm container from given official ffmpeg example - User800222 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to implement vp9 hardware acceleration encoding process. I followed ffmpeg offical github's example (Here -> vaapi_encode.c). But given example only save a .yuv file to .h264 file, I would like to save the frames to either .mp4 or .webm container. And having the ability to control the quality, and etc. I'm not reading frames from a file, I'm collecting frames from a live feed. When having full 5 secs of frames from the live feed, encode those frames using vp9_vaapi to a 5 secs .mp4 file. I'm able to save all the 5 secs (...) -- Here -> vaapi_encode.c, , ,
• 10:06
  Different between fragmented mp4 files generated by ffmpeg and by code - dinhnguyen Newest 'ffmpeg' Questions - Stack Overflow
  Currently I have a problem when generating fragmented MP4 file from code using libavformat. My file can be played using VLC, but can't be streamed (via WebSocket) and played (via MediaSource) in (Chrome) browser. (I used this to test streaming fragmented MP4 file to browser via WebSocket). Note: The files below is encoded by Baseline profile, level 4. So you should change the MIME type (in index.html) to const mimeCodec = 'video/mp4; codecs="avc1.42C028"'; to be able to play them. I checked and found that my generated Mp4 file is a bit different with the (...) -- this, file, fragmented MP4 file, fragmented Mp4 file by using libavformat
• 08:36
  Image generated by System.Drawing.Image is 10x larger than original file - Ninbura Newest 'ffmpeg' Questions - Stack Overflow
  I've written a Powershell script that extracts one frame from a dshow capture device using FFmpeg, and then copies the output image from a file to my clipboard: $screenshot = [System.Drawing.Image]::FromFile((Get-Item -Path $outputFilePath)) [System.Windows.Forms.Clipboard]::SetImage($screenshot) $screenshot.Dispose() The original file is a 1MB JPEG, but the image in my clipboard is an 11MB PNG. When I go to paste this file into something like Discord the file size is too large, unless you have Discord Nitro. Is there any way to avoid this file size (...)
• 06:18
  Restreaming HLS video source to RTMP using ffmpeg.autogen - Andrew Wilcockson Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to write a C# restreaming class that will take HLS/m3u8 H264 encoded video streams and restream them as RTMP H264 encoded video. I started with the simple transport stream recorder sample and was able to make it work in the following scenarios: UDP restreamed to UDP (mpegts) UDP restreamed to RTMP (flv) HLS restreamed to UDP (mpegts) But cannot for the life of me get it to work with HLS to RTMP. I get a failure return code of -22 on my call to avformat_write_header Note that I can make this work perfectly from the command line version of ffmpeg with (...)
• 05:44
  Why Yuv data readed from ffmpeg is different from original input yuv? - sianyi Huang Newest 'ffmpeg' Questions - Stack Overflow
  I use ffmpeg to make HDR test video, my approach is write a image, converting the image to yuv420p and then use ffmpeg to make the HDR test video. But I found the yuv data readed from mp4 is different from the original input.. I was stucked in here for a while, does anyone know how to read the correct yuv data from mp4 ? #ffmpeg encode command ffmpeg_encode_mp4 = \\ "ffmpeg -y -s 100*100 -pix_fmt yuv420p -threads 4 -r 1 -stream_loop -1 -f rawvideo -i write_yuv.yuv -vf \\ scale=out_h_chr_pos=0:out_v_chr_pos=0,format=yuv420p10le \\ -c:v libx265 -tag:v (...)
• 05:43
  Transcoding HEVC 4K HDR using ffmpeg and vaapi - P. Brand Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to transcode a 4K HEVC HDR video to a lower bitrate using ffmpeg and VAAPI hardware acceleration for my LG OLED television. I use the following file: Video Using the following command: ffmpeg -init_hw_device vaapi=va:/dev/dri/renderD128 -hwaccel vaapi -hwaccel_output_format vaapi -hwaccel_device va -filter_hw_device va -i LG\\ 4K\\ HDR\\ Demo\\ -\\ Daylight.mkv -map 0:0 -t 00:00:20 -c:v hevc_vaapi -sei hdr -qp:v 21 lg_vaapi.mkv But this file is not recognized as HDR on my TV. When using the libx265 encoder (which is off (...) -- Video, Patch
• 05:37
  Encode HDR content with ffmpeg directly into AV1 - Felixkruemel Newest 'ffmpeg' Questions - Stack Overflow
  I want to encode a short HDR clip from HEVC to AV1 while retaining all HDR informations. My goal is to use libsvtav1 as encoder. What do I need to specify to retain HDR? My current command looks like this, but I know that there's something missing: ffmpeg -i input-hdr.mkv -vcodec libsvtav1 -rc 0 -qp 23 -preset 5 -acodec copy -scodec copy -pix_fmt yuv420p10le output.mkv
• 05:30
  Why does ffmpeg have to align to the power of 2 when processing crop_left? - hansionz Newest 'ffmpeg' Questions - Stack Overflow
  If performance is considered, why doesn't crop_top \\ crop_left \\ crop_right perform power-of-two alignment? enter image description here -- enter image description here
• 04:40
  Convert Webp to MP4 file in Python Script [duplicate] - Sar sinua Newest 'ffmpeg' Questions - Stack Overflow
  is there any way to convert Webp file to MP4 in python script?i want to execute my codes on Heroku i tried... import moviepy.editor as mp clip = mp.VideoFileClip("input.webp") clip.write_videofile("output.mp4") i got error: OSError: MoviePy error: failed to read the duration of file giphy.webp. Here are the file infos returned by ffmpeg: ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.2.1 (GCC) 20200122 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls (...)
• 01:48
  When using ffplay, how to eliminate milliseconds from timestamp display in the video-filter - Dave Newest 'ffmpeg' Questions - Stack Overflow
  So when specifying a video-filter to display current video-time in 'hms' layout, the filter appends a millisecond value after the seconds-field. I want to eliminate the milliseconds portion. So far, my invoked cmd looks like: ffplay myfile.mp4 -vf "drawtext=text='%pts \\: hms':fontsize=20:fontcolor=white: box=1: boxcolor=black" i.e. instead of: 00:00:01.001 I want just 00:00:01 to display. [One might have thought that there would exist an 'hmsm' for the former, and that 'hms' would be the latter, but it just (...)
• 01:12
  FFMPEG Python - Convert Webp to MP4 file from Python Script - Sar sinua Newest 'ffmpeg' Questions - Stack Overflow
  is there any way to convert Webp file to MP4 in python script? i also know for running FFMPEG in python i should use below code import subprocess subprocess.call('ffmpeg.....',shell=True)

12 May

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

• 15:25
  avcodec: remove leftover references to AVCodecContext.refcounted_frames - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec: remove leftover references to AVCodecContext.refcounted_frames Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/avcodec.h

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

• 23:27
  FPS from RTSP stream info does not match actual framerate - Krapow Newest 'ffmpeg' Questions - Stack Overflow
  I have a 25FPS RTSP stream coming from an IP-camera. I can successfully display the video stream. But when analyzing the stream with ffmpeg (ffprobe actually), I observe fewer frames per second rate: $ ffprobe -rtsp_transport tcp -i rtsp://camera_ip:554/stream -select_streams v:0 -show_frames -show_entries frame=coded_picture_number,pkt_pts_time -of csv=p=0 Stream #0:0: Video: h264 (Main), yuvj420p(pc, bt709, progressive), 640x480, 25 fps, 25 tbr, 90k tbn, 50 (...)
• 21:56
  Speed up start of a stream recording with ffmpeg - neutron Newest 'ffmpeg' Questions - Stack Overflow
  I try to record a video stream (from the web or a local webcam stream) and save it to a .mp4 / .flv file. I use FFmpeg with the version"N-59696-gc0a33c4". The problem isn't the recording of the stream, it is, how log it tooks to start the recording. This are the parameters i used to capture the stream (the stream is some random stream I found on the web): ffmpeg.exe -i mmsh://live.camstreams.com/cscamscape?MSWMExt=.asf -r 25 -t 60 C:\\temp\\video.mp4 And leads to this output: ffmpeg.exe -i (...)
• 21:06
  ffmpeg error: cur_dts is invalid - Caballero Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to record video and audio from my webcam with the following command: ffmpeg -f v4l2 -input_format mjpeg -s uhd2160 -i /dev/video0 -f pulse -channels 1 -i default video.mpg but it seems to get stuck in some endless loop at the bottom of the output that looks like this: cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) cur_dts is invalid (this is harmless if it occurs once at the start per stream) ... Full (...) -- https://pastebin.com/bV1ePJ2u

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

• 05:33
  avutil/imgutils: don't add offsets to NULL pointers - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avutil/imgutils: don't add offsets to NULL pointers Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavutil/imgutils.c

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

• 20:11
  FFMPEG SRT multiple callers in to one listener? - Ian Newest 'ffmpeg' Questions - Stack Overflow
  I am using this line: exec_push /home/production/bin/ffmpeg -i rtmp://localhost:1935/live/slot4 -codec copy -g 1 -bsf:v h264_mp4toannexb -f mpegts srt://0.0.0.0:50330?mode=listener -loglevel verbose; in nginx to launch FFMPEG and have it transmux RTMP to SRT. That being said, i'm curious if there is a flag or a way to have multiple SRT callers call into this one stream. If not, can you provide and alternative solution?
• 20:06
  Invalid stream specifier: metadata [closed] - Orsu Newest 'ffmpeg' Questions - Stack Overflow
  I have this command: ffmpeg -i video.format -movflags use_metadata_tags -map metadata 0 -vcodec libx265 -acodec copy output.mp4 I get this error: [avi ⓐ 0x559845f9c480] Invalid stream specifier: metadata. Last message repeated 3 times Stream map 'metadata' matches no streams. To ignore this, add a trailing '?' to the map. Any ideas?
• 19:37
  FFMPEG loudnorm filter does not work in combination with silenceremove filter - MareikeP Newest 'ffmpeg' Questions - Stack Overflow
  I want to consistently normalize audio files for TTS model training. The output audio files should meet the following criteria: mono channel sample rate of 22050 Hz wav format no silence at beginning and end of audio clip volume of -24 dB I have already fulfilled the first 4 criteria. So far, it works properly. Normalizing the volume basically works as well with this ffmpeg command -af loudnorm=I=-24:LRA=11:TP=-1.5 , but not in combination with the silence removal: As soon as I remove silence with this ffmpeg command (...)
• 19:20
  WebRTC Video Track to ffmpeg in Node - Marcos López Newest 'ffmpeg' Questions - Stack Overflow
  I have succesfully managed to establish a WebRTC connection between Node (server) and a browser. Server gets the video track on onTrack callback inside the RTCPeerConnection. Is there any way I can potentially convert the video track and make it work on ffmpeg so I can output it to rtmp. Thanks in advance.
• 19:16
  Dynamically change video crop width, height, x and y using ffmpeg - Mario Newest 'ffmpeg' Questions - Stack Overflow
  I am doing object detection on a video and so far I've gotten the coordinates of the objects in the video. now I want to crop the video frame by frame given the location/coordinates of the object My code so far: def crop_video(input_video_path, output_video_path, coordinate_list): crop_ratio = 'crop=%s:%s:%s:%s' % (coordinate_list[0][0], coordinate_list[0][1], coordinate_list[0][2],coordinate_list[0][3]) subprocess.run(['ffmpeg', '-i', input_video_path, '-filter:v', crop_ratio, output_video_path]) the (...)
• 13:18
  ffmpeg timelapse discard garbage jpg [duplicate] - piekn Newest 'ffmpeg' Questions - Stack Overflow
  I'm successfully creating timelapse video (jpg->mp4) using command line $ffmpeg -r $fps -f concat -safe 0 -i $concat_file -c:v libx264 -vf 'format=yuv420p' $thumbnail 2>&1 & But some of source jpg are 'garbage' (look picture below what I mean) - part of the picture is lost. part of picture is lost As result, final clip contains damaged frames (see below) final clip As I see, the best for me is to discard these jpg. But I have no ideas how to define them? - file system don't see them as 'broken', etc. Any (...) -- part of picture is lost, final clip
• 15:02
  Large Video file Conversion using ffmpeg - Varsha Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg tool to convert videos from wmv to mp4 formats using the following code - string outputPath = args[1].ToString(); string[] files = Directory.GetFiles(inputPath); Console.WriteLine(files.Length); foreach (var item in files) itemBkp = item; Process proc = new Process(); proc.StartInfo.FileName = ⓐ"e:\\test\\ffmpeg.exe"; string filename= Path.GetFileName(item); proc.StartInfo.Arguments= " -i " + item + " " + outputPath + filename.Split('.')[0] + ".mp4";  (...)
• 13:39
  Is there an elegant way to split a file by chapter using ffmpeg? - Kattern Newest 'ffmpeg' Questions - Stack Overflow
  In this page, Albert Armea share a code to split videos by chapter using ffmpeg. The code is straight forward, but not quite good-looking. ffmpeg -i "$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 (...) -- this page

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

• 13:06
  Anomalie #4706: safehtml vire des trucs légitimes Revisions : SPIP
  cedric - a écrit : Et par contre RealET, ton url en data:xxx est un cas légitime et potentiellement dangereux, il est donc normal que safehlml la supprime, ne t'en déplaise Super, merci. Et pour NivoSlider, c'est résolu : https://git.spip.net/spip-contrib-extensions/nivoslider/commit/2fc16f04
• 11:43
  Anomalie #4706: safehtml vire des trucs légitimes - RastaPopoulos ♥ Revisions : SPIP
  excellent merci !
• 11:37
  Anomalie #4706 (Fermé): safehtml vire des trucs légitimes - cedric - Revisions : SPIP
  Et avec les tests unitaires, tout va mieux : c'est donc corrigé en 4.0-dev par https://git.spip.net/spip/safehtml/commit/ad3f445ec89181bafd31ed82726810b17f77bd91 (je sais pas si il faut reporter en 3.2, je suis pas certain certain) Et par contre RealET, ton url en data:xxx est un cas légitime et potentiellement dangereux, il est donc normal que safehlml la supprime, ne t'en déplaise
• 10:58
  Anomalie #4717 (Fermé): Erreurs nombre d'argument des filtres - cedric - Revisions : SPIP
  C'est donc intégré
• 10:53
  Evolution #4675 (Fermé): Lien d'url qui renvoi vers le privé - cedric - Revisions : SPIP
  Ce n'est plus un lien mais un bouton https://git.spip.net/spip/urls_etendues/src/branch/master/prive/objets/editer/url.html#L6 il n'est plus possible de faire la manip "copier l'url" donc et pas de risque d'erreur. Cela dit on pourrait encore améliorer en ayant un lien avec l'URL copiable et ouvrable via clic-droit par exemple. Je vous laisse le soin de faire une PR le cas échéant, je ferme ici le problème de base étant résolu
• 10:46
  Anomalie #4780 (Fermé): Eviter une erreur javascript si pb de charset - cedric - Revisions : SPIP
  Intégrée
• 10:43
  Anomalie #4732: Impossibilité de confirmer le mot de passe d'un auteur manuellement - cedric - Revisions : SPIP
  On a bien une saisie du second mot de passe pour confirmation proposée ici https://git.spip.net/spip/spip/src/branch/master/prive/formulaires/editer_auteur.html#L102 du coup je ne comprends pas le ticket non plus. Est-ce que tu n'aurais pas une surcharge du html du formulaire ?

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

• 10:03
  Why FFMpeg av_probe_input_format function is doing an access violation? - Fabrice Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to probe a buffer of DHAV containing an H264 video stream. I use the code below to do that : AVProbeData probeData; probeData.buf_size = len My problem is that I have an Access violation exception during the call to av_probe_input_format. If I change the second argument to 0, I have no error, but the Format is not found. Any idea? I use an FFMpeg version compiled through vcpkg.
• 08:52
  ffmpeg detect when a mp3 remote audio changes - loretoparisi Newest 'ffmpeg' Questions - Stack Overflow
  I'm downloading via ffmpeg a mp3 hosted on some data source: function (fpath, opath, sampleRate) var self = this; // defaults sampleRate = sampleRate || '44100'; var loglevel = self.logger.isDebug() ? 'debug' : 'warning'; return new Promise((resolve, reject) => const args = [ '-y', '-loglevel', loglevel, '-i', fpath, '-ar', sampleRate, '-acodec', 'pcm_s16le', opath ]; const opts = cwd: (...)
• 06:45
  Can we detect whether a live udp stream packet contains a key frame or not? - Miuru Shalinda Rajapaksha Newest 'ffmpeg' Questions - Stack Overflow
  Is there a way to detect whether there is a key frame within a video packet or not? What I want do is I want to cut the live udp stream into seperate 30 second .ts files, and then concatenate the files including several other .ts file using ffmpeg and restream to rtmp (youtube). I can achieve this but the only problem I have is after concatenating the files there is drop frame after each 30 seconds, the reason for this is I have cut the live stream without considering the key frames. Therefore what I want is to cut the live stream based on its key frames. Im doing this using python (...)
• 05:34
  Default ffmpeg codec when nothing is specified - Sam Newest 'ffmpeg' Questions - Stack Overflow
  If I import a file to use with ffmpeg but dont specify anything about the codecs of any of the streams, will ffmpeg do anything? Is the default action to just copy the codecs? Or will ffmpeg encode the input file using some default codec? Would the following two commands be the same? Or will the second re-encode and take ages? ffmpeg -i input.mkv -c:v copy -c:a copy output.mp4 ffmpeg -i input.mkv output.mp4
• 00:32
  Input FFMPEG subprocess to FFMPEG RTMP stream in python? - Guiso Newest 'ffmpeg' Questions - Stack Overflow
  I managed to stream frames of a video to the RTMP server but I also want to stream the audio - for that I can't use the rawvideo format and now I don't know how many bytes are required for the ffmpeg video to send to the ffmpeg stream. If there is an easier way to do this I would much prefer it, I tried my best in making comments so that the code is understandable. WIDTH = 1152 HEIGHT = 720 RTMP = "" #Returns frame of a video def read_frame(process1, width, height): frame_size = width * height * 3 (...)

11 May

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

• 03:14
  avcodec/allcodecs: Don't include libx264 twice in the list of codecs - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/allcodecs: Don't include libx264 twice in the list of codecs Since a247ac640df3da573cd661065bf53f37863e2b46, allcodecs.c contained two lines that matched the regex used by find_filters_extern in configure; as a result, libx264 appeared twice the list of codecs (if enabled). Fix this by using only one matching line by adding a preprocessor define for the part that differed in the two old lines: The const qualifier. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] (...)

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

• 22:50
  Dynamically created QImage frames to ffmpeg stdin using QThread - musicamante Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to create video files with ffmpeg using frames dynamically created on a separate thread. While I can create those frames and store them on disk/memory, I'd like to avoid that passage since the amount/size of the frames can be high and many "jobs" could be created with different format or options. But, also importantly, I'd like to better understand the logic behind this, as I admit I've not a very deep knowledge on how thread/processing actually works. Right now I'm trying to create the QProcess in the QThread object, and then run the image (...)
• 21:04
  How to extract frames from a video java? - AlterV Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a project to do analysis on a video, and I want to split the video into frames to process individually. I took a look at several open source libraries, including Xuggler and FFMPEG, but they are both outdated and unavailable for use. Is there a simple way that I can extract the frames from the video and process them as a collection of BufferedImage?
• 12:41
  Best way to convert video from h264 to h265 and copy audio without lose too much quality [closed] - user3449922 Newest 'ffmpeg' Questions - Stack Overflow
  I have some mkv file ripped from blu ray and I like to convert it to h265 with ffmpeg. I have tried this command: ffmpeg.exe -i title00.mkv -c:v hevc_nvenc test_2.mkv and the result seem incredible: original size: 27 GB , output size: 1.6 GB Francanly I don't expect a similar result that is very strange. The quality seem similar at the fist look, but I don't belive it. I ask if there is a better way to preserve the original quality and it is not important if the output size is 4 or 5 GB that is in all cases a excellet result. I have Nvidia (...)
• 21:07
  What is the easiest way of showing ffmpeg timestamp in millisecond? - mrghafari Newest 'ffmpeg' Questions - Stack Overflow
  I want to stream a video into my local host by VLC and get the streamed into a regular video chunk. The chunks need to have a timestamp text at the end of the chunks in millisecond like camera1_13:23:45.23.mp4 but the output has the shape just like camera1_13:23:45.mp4 until the second not in millisecond. I googled a lot but I didn't find any easy way of showing the strftime in millisecond. I used many ways of $S.%f or %S.%N but it doesn't work. How can I fix it? ffmpeg -i rtsp://127.0.0.1 -f segment -segment_time 10 -segment_format_options movflags=+faststart (...)
• 20:13
  The easiest way of showing ffmpeg timestamp in millisecond? - mrghafari Newest 'ffmpeg' Questions - Stack Overflow
  I want to stream a video into my local host by VLC and get the streamed into a regular video chunk. The chunks need to have a timestamp text at the end of the chunks in millisecond like camera1_13:23:45.23.mp4 but the output has the shape just like camera1_13:23:45.mp4 until the second not in millisecond. I googled a lot but I didn't find any easy way of showing the strftime in millisecond. I used many ways of $S.%f or %S.%N but it doesn't work. How can I fix it? ffmpeg -i rtsp://127.0.0.1 -f segment -segment_time 10 -segment_format_options movflags=+faststart (...)
• 19:36
  FFMPEG - Output video not playing after effect - D.B. Newest 'ffmpeg' Questions - Stack Overflow
  I am using FFMPEG for giving effects to video. I tried to give effect to video using below commands. ffmpeg -i Input1.mp4 -i Input2.mp4 -filter_complex xfade=transition=circleopen:duration=5:offset=0 OutPutVideo.mp4 My command runs fine but output video is not running even in VLC media player. I got these commands from location: https://ottverse.com/crossfade-between-videos-ffmpeg-xfade-filter/ My videos are at location: https://drive.google.com/drive/folders/1SLsrRUjyGH3eM7Oe3cptU_YPkga7EoCO?usp=sharing Please advise what is the issue? Kind (...) -- https://ottverse.com/crossfade-between-videos-ffmpeg-xfade-filter/, https://drive.google.com/drive/folders/1SLsrRUjyGH3eM7Oe3cptU_YPkga7EoCO?usp=sharing
• 20:26
  fluent-ffmpeg: how to merge many files with across fade between them - Vitu_ 77 Newest 'ffmpeg' Questions - Stack Overflow
  Well, first of all, a i have some audio inputs and i want to merge all into a single audio file with acrossfade between them. file1.mp3, file2.mp3...fileN.mp3 I'm doing a reduce to include all the inputs, like this: inputs.reduce((result, file) => result.addInput(file), ffmpeg()) And for adding the acrossfade, i created a function that receives my inputs and build the complexFilter. The returned filters looks like this: [ filter: 'acrossfade', inputs: [ '0', '1' ], options: d: 5, overlap: '1', (...)
• 17:57
  FFmpeg best LGPL alternative to libx264? - XylemFlow Newest 'ffmpeg' Questions - Stack Overflow
  I'm developing a commercial software that is not open source. It will use FFmpeg to export videos. The libx264 codec doesn't appear to be an option for me since I can only use LGPL for legal reasons. What is the best LGPL alternative to libx264? I'd like a codec that makes a good compromise between quality and file size as well as being supported by the majority of video players and video sharing sites such as YouTube. If I have to choose between lower quality and larger file size then I'd go with larger file size since videos can always be transcoded using other (...)

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

• 16:54
  Evolution #4739 (Fermé): Styles des boîtes et messages du privé Revisions : SPIP
• 16:53
  Evolution #4753 (Fermé): Styles du privé : listes d'objets (suite des boîtes et des formulaires) Revisions : SPIP

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

• 16:14
  Running bash script in backend safe? - Tris Newest 'ffmpeg' Questions - Stack Overflow
  Hi I am pretty new to web security and am worried about possible shell/command injection risks. I am wondering if it is safe to run a command line script only in my nodejs backend and have the web host run it. From my understanding, it would be safe to run as the backend is not able to be accessed from the website and its front end. Thanks for any answers!
• 16:07
  Estimating number of frames and fps in opencv - mrgloom Newest 'ffmpeg' Questions - Stack Overflow
  I have some .mp4 video, ffmpeg shows me this info: Duration: 00:00:07.02, start: 0.000000, bitrate: 18001 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt709/bt709/iec61966-2-1, progressive), 886x1920, 14299 kb/s, 22.54 fps, 60 tbr, 600 tbn, 1200 tbc (default) Metadata: rotate : 270 creation_time : 2021-04-30T13:56:51.000000Z handler_name : Core Media Video encoder : 'avc1' Side data: displaymatrix: rotation of 90.00 degrees So as I understand it should be 7.02 sec * 22.54 fps ~ 158 frames  (...)
• 14:59
  Problems installing ffmpeg on Mac OS X 10.11.6 El Capitan [closed] - violet Newest 'ffmpeg' Questions - Stack Overflow
  I tried installing it using homebrew and also tried to clone but it always ends up failing building. I don't find the cause. Is it because of my operating system being old? homebrew install fail screenshot Thank you so much in advance! -- homebrew install fail screenshot

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

• 14:33
  Anomalie #3882: Ancres des notes de bas de page pour les URL arborescente Revisions : SPIP
  Merveilleux Cédric ! J'ai testé en 4.0 et en 3.2.11 (merci pour le code complet que j'ai copié/collé à la place de l'ancien dans les 2 versions de SPIP) et ça corrige les ancres en url arbo. Merci à toi.

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

• 13:46
  Why is av_read_frame blocking the program when capturing an image from v4l2? - vvvnickm Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to get a frame from the camera using v4l2, but the program gets the first frame and then on the next pass of the while loop, the program is blocked by the av_read_frame function. I am using this for an example. I added the required functions for v4l2: avdevice_register_all (); avcodec_register_all (); av_register_all (); AVInputFormat *inputFormat =av_find_input_format("v4l2") and changed in_filename = "/ dev / video0". I suspect this code is only suitable for reading files, but I could be wrong because I am just getting started with ffmpeg. I would be glad for any help, (...) -- this
• 13:30
  Crop Videos & Reduce Quickly on Mobile with or w/o FFMpeg (Flutter) - Haidar Hammoud Newest 'ffmpeg' Questions - Stack Overflow
  Cropping, modifying quality, and other seemingly simple edits applied to videos using FFMpeg take between 30 to 60 seconds for a 15 second long video. Apps like Snapchat, Instagram, TikTok, WhatsApp, and Twitter are able to nearly instantly edit a video file with quality modifications, videos concatenated together, image overlays applied over every frame, and cropping. This is evident from the fact that videos can be viewed by the receivers within seconds of them being sent with all the modifications applied. Are there any reliable ways to achieve the same speeds (0.5 - 1.5 (...)
• 13:04
  Visual Studio & ffmpeg : Building FFmpeg in visual studio - 'ffmpeg.obj' - Simba_cl25 Newest 'ffmpeg' Questions - Stack Overflow
  I am new here and I am trying to link ffmpeg with visual studio following some guides like : http://ffmpeg.org/platform.html#Linking-to-FFmpeg-with-Microsoft-Visual-C_002b_002b I added librairies in the project propreties : In C/C++ --> General --> Additional Include Directories In Linker --> General --> Additional Library Directories In Linker --> Input --> Additional Dependencies But I have encountered the following problem : Error LNK1104 cannot open file 'ffmpeg.obj' I tried to add double quotes (...) -- http://ffmpeg.org/platform.html#Linking-to-FFmpeg-with-Microsoft-Visual-C_002b_002b

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

• 12:35
  avfilter/dnn/dnn_backend_tf: fix cross library usage - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avfilter/dnn/dnn_backend_tf: fix cross library usage duplicate ff_hex_to_data() function from avformat and rename it to hex_to_data() as static function. Reviewed-by: Guo, Yejun <yejun.guoⓐintel.com> Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> [DH] libavfilter/dnn/dnn_backend_tf.c

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

• 14:14
  Anomalie #4782 (Nouveau): Révisions pour un admin restreint - jluc - Revisions : SPIP
  En spip4.0alpha, sur l'accueil du privé, un admin restreint voit le nombre total des révisions sur le site et une liste vide suivi d'une abondante pagination inutile. Cf copie d'écran sur spip.net Et sur la page d'un article, un admin restreint n'a aucun aperçu des révisions. Il me semble qu'un admin restreint devrait avoir un plein accès aux révisions des articles de sa zone d'administration.
• 13:41
  Evolution #4781 (Nouveau): Mieux documenter la charte des formulaires Revisions : SPIP
  Il y a beaucoup de choses à dire et à préciser sur la charte des formulaires. Jusqu'à présent dans le formulaire de démo on mettait quelques explications rapides au fil de l'eau dans les labels, ex. « Saisie en .pleine_largeur » Mais j'en ai retiré la plupart : ça limite beaucoup ce qu'on peut dire, et mettre des .explication partout rendrait l'ensemble surchargé et illisible. Ça doit rester un formulaire de démonstration, il faut arriver à caser les explications d'une autre façon. Je sais pas quelle est la meilleure façon d'aborder ça, pour l'instant j'ai 2 pistes : Avoir 2 pages différentes : une avec (...)
• 13:17
  Evolution #4753 (Résolu): Styles du privé : listes d'objets (suite des boîtes et des formulaires) Revisions : SPIP
  Intégré, je ferme. Pour le suivi des régressions, voir ici : https://core.spip.net/issues/4756

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

• 11:16
  No ffmpeg exe could be found | Kivy [closed] - Mr Anonymous Newest 'ffmpeg' Questions - Stack Overflow
  I made a video-downloader for youtube with kivy to deploy it on android, which extracts audio from video. The problem is I got the "No ffmpeg exe could be found"-error. I tryed to include it in the requirements with ffmpeg, but nothing changed. So can you solve this problem at all, if so, what do I have to do. Thanks!
• 11:12
  I can't find a good C# Media Transcoding Library [closed] - TheYoungSeth Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to find a good c# library for media transcoding, primarily video, and I don't seem to find anything good and actually usable. I do not want to use FFMpeg wrappers because I want my program to be user friendly and for public use which I can't do with FFMpeg because of the harsh usage rules that come with it. Help would be appreciated, thanks
• 10:52
  ffmpeg - Error [tcp ⓐ 0x5a25700] Port missing in uri - SU privileges required - ger Newest 'ffmpeg' Questions - Stack Overflow
  For further development I tried to download a livestream under Ubuntu 20.04 uname -a Linux 5.9.16-050916-generic #202012211331 SMP Mon Dec 21 14:11:13 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux` ffmpeg -v debug -i 'https://edge2.1internet.tv/dash-live11/streams/1tv/1tvdash.mpd' testErsterKanal.mp4 ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9 (Ubuntu 9.3.0-10ubuntu2) configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu (...)

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

• 10:36
  Evolution #4103: Autoriser /local/cache-gd2/ et /local/cache-vignette/ dans robots.txt - b b Revisions : SPIP
  C'est fait https://git.spip.net/spip/dist/commit/bbf7446e8afbd46baba90a366f77cf928e923e3a :)

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

• 10:28
  FFMPEG Implement RTSP Client, high speed playback - TTGroup Newest 'ffmpeg' Questions - Stack Overflow
  I am writing software to play videos that have been recorded from NVR. I have completed most of the work, but there is one more feature that allows the user to change the play speed such as 0.5x, 2x, 4x, 8x ... I searched the internet all day and still couldn't find any suggestions. Here is my summary code below. auto pFormatCtx = avformat_alloc_context(); av_dict_set_int(&opts, "rw_timeout", 5000000, 0); av_dict_set_int(&opts, "tcp_nodelay", 1, 0); av_dict_set_int(&opts, "stimeout", 10000000, 0); av_dict_set(&opts, "user_agent", (...)
• 10:18
  Ffmpeg and ffprobe not showing subtitles stream in m3u8 file - DanielVip3 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to get an mp4 video from a m3u8 playlist file (in simple HLS), with audio, video and subtitles. I've managed to extract the video and audio stream because they are relatively easy: the input m3u8, according to ffprobe, contains 3 different programs, and the third program (called Program 2) is the one I need, because it contains both the highest quality video and the English highest quality audio. So, what I really am doing is ffmpeg -i "blahblah.m3u8" -c copy -map 0:p:2:v:0 -map 0:p:2:a:m:language:eng -map 0:s:0 "output.mp4" Which means: select (...) -- You can find here all the streams which the ffprobe command shows
• 09:51
  How to get currecnt AVFrame siquential number after av_seek_frame? - Aleksey Timoshchenko Newest 'ffmpeg' Questions - Stack Overflow
  I am new in decoder and FFmpeg. What I need is to implement the logic that can read frames with some step (ex:20), in other words, I have a file and I need to read frames 0, 20, 40, 60... what I do is AVFrame * m_pAVFrame = nullptr; int firstFrameIdx = 0; while(true) if(firstFrameIdx > 0) int64_t seekTarget = FrameToPts(m_pAVStream, firstFrameIdx); nRet = av_seek_frame(m_pAVFormatCtx, m_streamIdx, seekTarget, AVSEEK_FLAG_FRAME); nRet = av_read_frame(m_pAVFormatCtx, m_pAVPkt); ret = avcodec_send_packet(m_pAVCodecCtx, (...) --
• 09:07
  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 (...)

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

• 10:07
  Evolution #4103: Autoriser /local/cache-gd2/ et /local/cache-vignette/ dans robots.txt - b b Revisions : SPIP
  Dites, vu que la modif est plutôt mineure ça vaudrait le coup de la reporter en 3.2 puisque c'est une LTS ?
• 10:02
  Anomalie #3882: Ancres des notes de bas de page pour les URL arborescente - cedric - Revisions : SPIP
  Ça marche chez moi (tm) en prod depuis des années, avec un squelette Z (donc le head et les #NOTES ne sont pas du tout dans un même fichier), donc non, c'est un peu plus compliqué que ça La fonction page_base_href() est appelée dans https://git.spip.net/spip/spip/src/branch/master/ecrire/public/evaluer_page.php#L96 donc pour chaque inclusion, et aussi avant l'affichage final https://git.spip.net/spip/spip/src/branch/master/ecrire/public.php#L157 Mais de fait, en relisant le code il semble qu'on puisse être mis en echec si le base est inséré trop tot, car ensuite ça ne fonctionne plus Peux tu (...)

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

• 06:20
  Exporting MPEG Transport Stream (.ts) keyframes to images in C/C++? Libavcodec / FFMPEG? - CyberBully2003 Newest 'ffmpeg' Questions - Stack Overflow
  I have some buffers made up of 188 byte TS packets. When I write them to a file, I can successfully view these .ts files in a video player. MPEG-2/H.264 is the format of the Transport Streams. Now, I would like to export the keyframes from these Transport Streams buffers (or .ts files) as .jpeg or some other common image format in my C/C++ project. This is a trivial task from the command line using ffmpeg, where I just feed it the .ts file and some parameters. However, for the purpose of this project, I would like to accomplish this conversion/exporting of (...)

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

• 00:29
  avfilter/vf_guided: Add missing const - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_guided: Add missing const Forgotten in f8d910e90f599f338438833dfc92e2f1915ce414. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavfilter/vf_guided.c

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

• 02:14
  ffmpeg overlay whith audio filter showcqt - testoflow Newest 'ffmpeg' Questions - Stack Overflow
  I want to overlay a video with the showcqt effect on the right corner, I know that I have to use a filter graph but don't know how, the documentation is large but not very accessible for me. ffmpeg outputs this: Input #0, matroska,webm, from 'cover.webm': Metadata: ENCODER : Lavf58.20.100 Duration: 00:03:14.58, start: -0.007000, bitrate: 206 kb/s Stream #0:0(eng): Video: vp9 (Profile 0), yuv420p(tv, bt709), 1280x720, SAR 1:1 DAR 16:9, 24 fps, 24 tbr, 1k tbn, 1k tbc (default) Metadata: DURATION : 00:03:14.541000000 Stream #0:1(eng): (...)

10 May

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

• 15:42
  GSoC: Support fast guided filter. - Xuewei Meng git.videolan.org Git - ffmpeg.git/rss log
  GSoC: Support fast guided filter. Two modes are supported in guided filter, basic mode and fast mode. Basic mode is the initial pushed guided filter without optimization. Fast mode is implemented based on the basic one by sub-sampling method. The sub-sampling ratio which can be defined by users controls the algorithm complexity. The larger the sub-sampling ratio, the lower the algorithm complexity. Signed-off-by: Xuewei Meng <xwmeng96ⓐgmail.com> Reviewed-by: Steven Liu <liuqi05ⓐkuaishou.com> [DH] doc/filters.texi [DH] (...)
• 09:15
  lavf/flvdec: normalize exporting date metadata - Anton Khirnov git.videolan.org Git - ffmpeg.git/rss log
  lavf/flvdec: normalize exporting date metadata Export them in UTC, not the local timezone. This way the output is the same everywhere. The timezone information stored in the file is still ignored, since there seems to be no simple way to export it correctly. Format them according to ISO 8601, which we generally use for exporting dates. Fixes fate-flv-demux, which was broken since 958bea5248f87116b0dd080461aa70c14ea86cf0 on some platforms. [DH] libavformat/flvdec.c [DH] (...)

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

• 23:24
  Anomalie #3882: Ancres des notes de bas de page pour les URL arborescente Revisions : SPIP
  Et fichiers pour tester. Il s'agit de squelettes-dist/article.html éclaté en 2 parties. À placer dans squelettes/
• 23:12
  Anomalie #3882: Ancres des notes de bas de page pour les URL arborescente Revisions : SPIP
  J'oubliais : j'ai testé ça avec la version Git 4.0 à jour. Mais j'ai le bug aussi en 3.2
• 23:11
  Anomalie #3882: Ancres des notes de bas de page pour les URL arborescente Revisions : SPIP
  Bonsoir, Alors, j'ai un peu creusé, et en fait ça dépend directement de la structure du squelette de base. Il faut que #TEXTE et #NOTE soient dans le même fichier de squelette que Ça doit être quelque chose du côté de https://core.spip.net/projects/spip/repository/entry/spip/ecrire/public/assembler.php#L696 D'ailleurs, si : je commente : //and ($poshead = strpos($texte, '')) !== false Et que je mets explicitement juste après le de mon squelette : href="#URL_SITE_SPIP/" /> ça marche ! En espérant que ça permette de circonscrire le bug. J'ai essayé de comprendre la fonction. J'ai l'impression (...)

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

• 22:10
  FFMPEG Invalid Data - D0n Newest 'ffmpeg' Questions - Stack Overflow
  I had a python script that runs ffmpeg processes against pre recorded files. My commands worked before but now I am getting an Invalid data error. Here is my command. ffmpeg -i black_video.mpeg -vf "blackdetect=d=2:pix_th=0.00" -an -f null - Here is my Error. black_video.mpeg: Invalid data found when processing input I am also running this convert command to the video files. convert black_video.mpeg -colorspace HSL -channel S -separate -format '%M avg sat=%[fx:int(mean*100)]\\n' info: Nothing I found online was relevant to my issue. The (...)
• 20:55
  Error while trying to transcode video in FFMPEG - Cainnech Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to stitch a few .MP4-files together using FFMPEG. However when trying to stitch I always get an Invalid chan_config 8-error. So obviously there is something wrong with the file but I'm trying to bypass the issue so that I'm still able to stitch the file.Even if it means I lose the audio. I have tried to convert it into a MOV hoping that a re-encode might solve the issue, but that's not the case. I have tried to remove the audio through FFMPEG but no luck. Also trying to remap the audio doesn't work. I have tried converting it (...)
• 22:20
  ffmpeg - create two Audio Streams from one - sunwave121 Newest 'ffmpeg' Questions - Stack Overflow
  I have a mp4 file with one AC3 5.1 track on it and the video stream of course. Now I want to mixdown the AC3 track to 384kbps and I also want to add stereo track at 256kbps. The actuall Video stream just get copied Can somebody give me a hint: -map 0 -c:v copy -c:a aac -b:a 256K -ac 2 -c:a ac3 -b:a 384K -ac 6 -c:s copy IM really not familiar with ffmpeg and it seems that i dont really understand how "map" works :( Thanks in (...)
• 19:58
  Very slow writes on MySQL 8 - waiting for handler commit - Akshat Goel Newest 'ffmpeg' Questions - Stack Overflow
  I have MySQL 8 docker installation installed on an edge device which has the following two tables to write to video_paths | CREATE TABLE `video_paths` ( `entry` int(11) NOT NULL AUTO_INCREMENT, `timestamp` bigint(20) NOT NULL, `duration` int(11) NOT NULL, `path` varchar(255) NOT NULL, `motion` int(11) NOT NULL DEFAULT '0', `cam_id` varchar(255) NOT NULL DEFAULT '', `hd` tinyint(1) NOT NULL DEFAULT '0', PRIMARY KEY (`entry`), KEY `cam_id` (`cam_id`), KEY `timestamp` (`timestamp`) ) ENGINE=InnoDB (...) -- , https://pastebin.com/vtWi0PUq, https://pastebin.com/MUZeG959, https://pastebin.com/eebEcYk7,
• 19:29
  Is there risk of shell/command injection when using FFmpeg or when there's no user input? - Tris Newest 'ffmpeg' Questions - Stack Overflow
  I am new when it comes to thinking about the security of my web applications. I have done research on shell injections and most of the time they say to just avoid using shell/command calls in the web applications. However, my alternative seems to limit which browsers clients can use. So I would prefer executing a shell command in my nodejs server. I am using FFmpeg and calling it through system command in nodejs child processes. I have a FFmpeg bash script like so: VIDSOURCE="rtsp:cameraurl" AUDIO_OPTS="-c:a aac -b:a 160000 -ac 2" VIDEO_OPTS="-s 854x480 -c:v libx264 -b:v (...)
• 19:08
  FFmpeg giving a wierd "Permission denied" error (Digitalocean VPS Ubuntu 18.04) - DJ Danny Newest 'ffmpeg' Questions - Stack Overflow
  I've set up a VPS server on Digitalocean. Installed Ubuntu 18.04, LAMP, etc. Finally, I installed ffmpeg. It is working fine from terminal but when I try to execute it through php it gives a weird "Permission denied" error: Here is some information: rootⓐvl:/# whereis ffmpeg ffmpeg: /usr/local/bin/ffmpeg rootⓐvl:/# whereis ffprobe ffprobe: /usr/local/bin/ffprobe rootⓐvl:/# ffmpeg -version ffmpeg version N-102461-g8649f5dca6 Copyright (c) 2000-2021 the FFmpeg developers built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04) configuration: (...)
• 13:11
  When I run ffplay in Raspberry Pi 4 CLI mode, "* failed to add service - already in use? (SDL restoring keyboard)" [closed] - SeungSeob Moon Newest 'ffmpeg' Questions - Stack Overflow
  I tested using pi3b and pi4b. It worked fine on pi3b. However, if you plug the same sd card into the pi4b, ffplay cannot run. I tried as below. *) pwomxplayer.bin: error while loading shared libraries: \\ libEGL.so: cannot open shared object file: No such file or directory ```$ sudo apt-get install libegl1-mesa-dev``` *) Failed to create window or renderer: Could not initialize OpenGL / GLES library ```$ sudo apt-get install gir1.2-ibus-1.0 libdbus-1-dev libegl1-mesa-dev \\ libibus-1.0-5 libibus-1.0-dev libice-dev libsm-dev libsndio-dev (...)
• 14:17
  How to run FFMPEG on all mp3 files in S3 directory? [closed] - Kabir Kumar Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to run FFMPEG normalzation on all files in a s3 directory but I am not able to figure it out. There are few articles related to using Lambda to perform normalization but couldn't find anything that could help my particular use case.
• 17:30
  ffmpeg how to end video with a black frame/solid color - request Newest 'ffmpeg' Questions - Stack Overflow
  I'm scaling 2 videos of different sizes and hstack them side by side together. If the length of the two videos is different and for example the first one is over, then it shows the last frame of that video the whole time. I want it to show nothing / a black frame until the other video is over My code so far: ffmpeg -i vid1.mp4 -i vid2.mp4 -filter_complex "[1][0]scale2ref[2nd][ref];[ref][2nd]hstack" -vsync 0 output.mp4 How could this be achieved? (something with tpad or stop_mode maybe?) Here are two sample videos to test with: testvid1  (...) -- testvid1, testvid1
• 17:40
  Ffmpeg rounds seconds instead of using the milliseconds part - NourElDineA Newest 'ffmpeg' Questions - Stack Overflow
  I tried to cut a video using the following command: ffmpeg -i input.mp4 -ss 00:00:00 -to 00:00:06.600 output.mp4 When I run the command ffmpeg rounds up and the output video is 7 seconds instead of 6.6 seconds. I would like to know if there is a way to cut the video precisely where I tell it to. Here is the log file content: ffmpeg version 4.3.1-2021-01-01-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers built with gcc 10.2.0 (Rev5, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static (...)
• 18:15
  How to get resolution label from a video in ffmpeg - HnnE Newest 'ffmpeg' Questions - Stack Overflow
  My goal is to get the labels 1080p,720p,480p,360p,.. from the video using ffmpeg. Some videos doesn't have the correct dimension to it. for example: 854x546 For the meantime I do it like this. 'height' + 'p' = 546p (which is wrong). Should I check if 'height' > 480 then return 720?.
• 18:24
  How can I extract the characteristics of multimedia video stream while the video is streaming? - Kai Newest 'ffmpeg' Questions - Stack Overflow
  I have built adaptive video streaming ,DASH, over SDN network and was wondering if I can get some video characteristics while the video is streaming. I have used youtube_dl and was able to get the received video after the completion of the stream however, I want to get the video characteristics such as (stream size, bitrate, frame rate, resolution and etc.) while streaming. I hope that you can provide me with a script to extract and generate a file that contains such (...)
• 12:50
  My Bot is not playing the audio file what can i do? - Lord42 Newest 'ffmpeg' Questions - Stack Overflow
  my Discord.py-Bot has a small rickroll function in it and since i replaced the old long file with a short one the bot wont give me any sounds. What can i do? import discord from discord.ext import commands import time import asyncio class add(commands.Cog): def __init__(self, client): self.client = client ⓐcommands.command() async def help(self, ctx): if not ctx.message.author.voice: # Exiting if the user is not in a voice channel return await ctx.send('Blablabla *~webcam * und *~add und mehr *~r * und noch wat')  (...)
• 12:32
  FFMPEG: max size for adelay parameter - Aleksandar Nikolic Newest 'ffmpeg' Questions - Stack Overflow
  Command with large size adelay parameter throws an error Delay must be non negative number. Failed to configure input pad on Parsed_adelay_1 Error reinitializing filters! Failed to inject frame into filter network: Invalid argument Error while processing the decoded data for stream #0:1 The command is: ffmpeg -y -i input.mp4 -filter_complex "[0:a]adelay=55555555:all=1[a0];[a0]amix=inputs=1[a]" -map [a] out.mp3 How can this be solved? What's the max size for adelay (...)
• 11:11
  ERROR: librsvg-2.0 not found using pkg-config - qdras Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to compile FFMPEG on Windows 10. I have installed MinGW. Run C:\\MinGW\\msys\\1.0\\msys.bat Enter command cd D:\\Users\\Stefan\\Downloads\\Compressed\\ffmpeg-snapshot\\ffmpeg Enter command ./configure --prefix=ffmpeg/ --enable-cross-compile --disable-network --disable-debug --disable-yasm --enable-librsvg It shows this error: ERROR: librsvg-2.0 not found using pkg-config If you think configure made a mistake, make sure you are using the latest version from Git. If the latest version fails, report the problem to the (...)
• 11:08
  How to extract 1 min video from m3u8 format using ffmpeg - Shivam Chauhan Newest 'ffmpeg' Questions - Stack Overflow
  How can I extrtact the first one minute video from m3u8 format hosted over aws? Is there a way i can do it by using ffmpeg or media streaming (aws)?

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

• 10:11
  Anomalie #4772 (Fermé): "Supprimer" : demande de confirmation invisible - b b Revisions : SPIP
• 10:01
  Anomalie #4772: "Supprimer" : demande de confirmation invisible - jluc - Revisions : SPIP
  Oui, le fix étant dans mediabox.
• 09:46
  Anomalie #4717: Erreurs nombre d'argument des filtres - jluc - Revisions : SPIP
  Suite aux commentaires, voici la nouvelle PR : https://git.spip.net/spip/spip/pulls/170
• 09:41
  Anomalie #4772: "Supprimer" : demande de confirmation invisible - b b Revisions : SPIP
  Et donc le ticket ici présent peut-être fermé ?

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

• 06:37
  How to add black borders to video - Arnaud Rochez Newest 'ffmpeg' Questions - Stack Overflow
  So I'm using ffmpeg to convert a video to 1920*1080 px, I found two ways to do so, the first one would be to stretch the video to 1920*1080, but then it looks kinda stretched. I used this command for this: ./ffmpeg_darwin -i SRC -vf scale=1920:1080,setdar=16:9 DEST The other option is the same without setdar but this just adapts the resolution to the one it started from (1728*1080). I would like to fill the 192 pixels of the width with a black border. Is there some kind of option to do so? Or is there maybe another command line that could achieve (...)
• 05:55
  How to do Slow Motion video in IOS - 2vision2 Newest 'ffmpeg' Questions - Stack Overflow
  I have to do "slow motion" in a video file along with audio, in-between some frames and need to store the ramped video as a new video. Ref: http://www.youtube.com/watch?v=BJ3_xMGzauk (watch from 0 to 10s) From my analysis, I've found that AVFoundation framework can be helpful. Ref: http://developer.apple.com/library/ios/#documentation/AudioVideo/Conceptual/AVFoundationPG/Articles/00_Introduction.html Copy and pasted from the above link: " Editing AV Foundation uses compositions to create new assets from (...)
• 05:46
  FFmpeg command-line on Android - Gonzalo Solera Newest 'ffmpeg' Questions - Stack Overflow
  I´m trying to use this ffmpeg command line on Android: ffmpeg -i /sdcard/DCIM/video.mp4 -s 480x320 /sdcard/output.mp4 I have the executable file of ffmpeg (on this path: /data/local/tmp/ffmpeg/ with chmod 751), and as I read, I´m trying to invoke it using: Runtime.getRuntime().exec("/data/local/tmp/ffmpeg -i /sdcard/DCIM/video.mp4 -s 480x320 /sdcard/output.mp4"); But I´m not getting any result after this calling, so I tried the same command but using the android terminal and I´m sure ffmpeg works because I ´m getting (...)
• 01:20
  converting png to movies with R via ffmpeg - user237554 Newest 'ffmpeg' Questions - Stack Overflow
  I want to convert a series of *.png files to a movie with R and have installed ffmpeg in the root directory. I think the installation has been successful because if I type ffmpeg -version in terminal I get all of the version information etc., etc. I have my *.png files saved in the wd and in R I say imgs I get an error message that "the command ""ffmpeg"" is not available in your system. Please install FFmpeg". Is there something I need to do to get R and ffmpeg to talk to each other? Again, from terminal, ffmpeg is in the directory and it looks like it (...)

9 May

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

• 23:44
  ffmpeg - Error [tcp ⓐ 0x5a25700] Port missing in uri - ger Newest 'ffmpeg' Questions - Stack Overflow
  For further development I tried to download a livestream under Ubuntu 20.04 uname -a Linux 5.9.16-050916-generic #202012211331 SMP Mon Dec 21 14:11:13 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux` ffmpeg -v debug -i 'https://edge2.1internet.tv/dash-live11/streams/1tv/1tvdash.mpd' testErsterKanal.mp4 ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9 (Ubuntu 9.3.0-10ubuntu2) configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu (...)
• 21:43
  How do I get a folder of frames from a video using golang and FFmpeg? - cain a Newest 'ffmpeg' Questions - Stack Overflow
  I am using the https://github.com/floostack/transcoder library to interact with FFmpeg, and everything seems to work fine, except extracting images from a video. I have tried passing it both the directory name and a %6d.png out pattern but both these just do nothing and exit. My code is the following: func ExtractImages(inPath string, outDir string) error imgFormat := "png" opts := ffmpeg.Options OutputFormat: &imgFormat, err := os.Mkdir(outDir, os.ModeDir|fs.ModePerm) if err != nil return err _, err = (...) -- https://github.com/floostack/transcoder

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

• 21:12
  Anomalie #4772: "Supprimer" : demande de confirmation invisible - jluc - Revisions : SPIP
  Du coup j'ai recréé ticket sur le plugin mediabox : https://core.spip.net/issues/4780
• 21:11
  Anomalie #4780 (Nouveau): Eviter une erreur javascript si pb de charset - jluc - Revisions : SPIP
  En cas de problème de charset sur le site, le json_encode qui prépare js_config échoue et la syntaxe du code généré est incorrecte : var mediabox_settings=; Il faut donc remplacer json_encode(mediabox_echappe_js_config($js_config)) par json_encode(mediabox_echappe_js_config($js_config, JSON_INVALID_UTF8_IGNORE)) C'est ce que fait la PR https://git.spip.net/spip/mediabox/pulls/4
• 21:06
  Evolution #4779 (Nouveau): Déclarer fonctions variadiques au lieu d'utiliser func_get_args - jluc - Revisions : SPIP
  PHP recommande de ne pas utiliser func_get_args mais de déclarer explicitement comme variadiques les fonctions, en passant les arguments avec "...", au lieu de les récupérer avec func_get_args. cf https://www.php.net/manual/fr/functions.arguments.php#functions.variable-arg-list en français pas toujours bien traduit, ou https://www.php.net/manual/en/functions.arguments.php#functions.variable-arg-list en anglais. Exemple : remplacer l'actuel : function concat() $args = func_get_args(); return join('', $args); par function concat (...$args) return join('', $args); Rq : Il faut la (...)

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

• 18:03
  FFMPEG vsync drop and regeneration - Lhh92 Newest 'ffmpeg' Questions - Stack Overflow
  According to the ffmpeg documentation vsync parameter Video sync method. For compatibility reasons old values can be specified as numbers. Newly added values will have to be specified as strings always. drop As passthrough but destroys all timestamps, making the muxer generate fresh timestamps based on frame-rate. It appears that the mpegts mux does not regenerate the timestamps correctly (PTS/DTS); however, piping the output after vsync drop to a second process as raw h264 does force mpegts to regenerate the PTS. Generate test (...)
• 14:59
  Cropping video stream in android-studio - Benjamin Basmaci Newest 'ffmpeg' Questions - Stack Overflow
  I want stream a very large video (lets say 5000x5000) and I want to crop it to show 1000x1000 chunks. Currently I do so by streaming the video via TextureView.SurfaceTextureListener. Scaling the video up to the point where one chunk fits my view and can be played. Here is a little snippit: Matrix matrix = new Matrix(); matrix.setScale(scaleX, scaleY, 0, 0); matrix.postTranslate(positionX, positionY); textureView.setTransform(matrix); However, since its such a big video, some devices cant play it. Smaller videos work fine, even with the same codec. (...) -- https://issuetracker.google.com/issues/37067983, https://trac.ffmpeg.org/ticket/4928
• 14:48
  How to merge four videos on one screen with ffmpeg [duplicate] - Andrey Prokhorenko Newest 'ffmpeg' Questions - Stack Overflow
  I have a video test.mp4, and I need to make it appear four times at once on a screen. Here I found a command that makes two videos appear at a time ffmpeg -i input0.avi -vf "movie=input1.avi [in1]; [in]pad=640*2:352[in0]; [in0][in1] overlay=640:0 [out]" out.avi But it doesn't work with mp4 videos, and I need four videos at a time.
• 12:36
  How do I split up a huge .mp3 file into multiple 200KB .mp3 files? Each should be individually playable - Foxxey Newest 'ffmpeg' Questions - Stack Overflow
  So I have a big .mp3 file and I would like to split it up automaticly in multiple 200kb .mp3 files. They should be individually playable. I have ffmpeg installed. Is there a way to do this using it?
• 10:36
  How to get best audio quality on music bot using discord.py? - user28606 Newest 'ffmpeg' Questions - Stack Overflow
  I've built a discord music bot in discord.py but for some reason, it doesn't play music in as high quality as Fredboat or Rythm(so I don't think voice chat's bitrate is the problem). I've tried a couple of things online. The only thing that improved quality a little bit was downloading the song before playing it. But the quality was still far from anything like Fredboat's. It's also very impractical since downloading a 1h song takes a while and is space consuming. I'm interested in how to fix this and the explanation for why this is (...)
• 10:35
  ffmpeg poor audio(only) streaming quality? how to configure - Tera Newest 'ffmpeg' Questions - Stack Overflow
  ffmpeg streams audio only with bad quality.. i need better quality, lantency isn't a problem! im making a discord bot that streams audio from my local input.. i saw the -aq short for -q:audio but changing that doesn't seem to make a diffrence.. im sure 48k samplerate should be plenty. need stereo channel. have no idea how to change the bitrate or the compression... maybe that might be the problem? using ffmpeg i got it working but i found that the quality isn't perfect.. how do i get loseless audio only? or is there somthing (...)

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

• 10:17
  configure: fix some filter dependencies - Matthias Troffaes git.videolan.org Git - ffmpeg.git/rss log
  configure: fix some filter dependencies Signed-off-by: Anton Khirnov <antonⓐkhirnov.net> [DH] configure

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

• 10:17
  Best way to convert video from h264 to h265 and copy audio without lose too match quality - user3449922 Newest 'ffmpeg' Questions - Stack Overflow
  I have some mkv file ripped from blu ray and I like to convert it to h265 with ffmpeg. I have tried this command: ffmpeg.exe -i title00.mkv -c:v hevc_nvenc test_2.mkv and the result seem incredible: original size: 27 GB , output size: 1.6 GB Francanly I don't expect a similar result that is very strange. The quality seem similar at the fist look, but I don't belive it. I ask if there is a better way to preserve the original quality and it is not important if the output size is 4 or 5 GB that is in all cases a excellet result. I have Nvidia (...)
• 10:05
  Discord.py - Streaming Youtube Live into Voice - SUPER MECH M500 Newest 'ffmpeg' Questions - Stack Overflow
  I'm back on the stacks, was banned from asking questions because they were terrible apparently, but I need help on something I've done a lot of research on but cannot find my answer; I need to be able to stream a youtube live stream's audio into a VC for radio music using discord.py Rewrite. I've been looking at Youtube_DL- and/or FFMpeg-related internet posts and all were either outdated (discord.py==0.16.x) or involved downloading youtube videos (can't do that with ongoing streams). And I've also tried to look through the discord.py v0.16.12 (...) -- voice_client.py create_ytdl_player, VoiceClient.play(), this lofi radio, example on the official Discord.py Repository
• 04:55
  Packet corrupt (stream = 0, dts = 2490755129) error in ffmpeg which creates HLS and in ffmpeg which uploads HLS to a CDN - Amit Maharjan Newest 'ffmpeg' Questions - Stack Overflow
  ffmpeg command which creates the hls stream: ffmpeg -y -v warning -i udp://225.1.2.3:2000?reuse=1&buffer_size=16777216&localaddr=127.0.0.1&overrun_nonfatal=1 -c:v:0 h264_qsv -global_quality 25 -pix_fmt nv12 -r 59.94 -filter:v:0 fps=fps=59.94,scale=768:432:force_original_aspect_ratio=decrease,pad=768:432:(ow-iw)/2:(oh-ih)/2 -vsync cfr -g 120 -c:a:0 aac -ar 48000 -b:a:0 128k -profile:v:0 high -level:v:0 3.1 -b:v:0 1000k -maxrate:v:0 1000k -bufsize:v:0 1000k -map 0:v -map 0:a -c:v:1 h264 -global_quality 25 -pix_fmt nv12 -r 24 -filter:v:1 (...)
• 03:58
  Open VideoStream using OpenCV 4.5.1 works on Windows but fails on Docker python:3.9.2-slim-buster for specific IP cam - Qua285 Newest 'ffmpeg' Questions - Stack Overflow
  I have 2 ip cameras - one of Hikvision and another of Provision ISR. Both use Onvif and work on VLC. I've written a simple python script to record images every 5 sec from their video stream. On Windows 10, using VSCode they both work as expected. Once deployed to a Docker container, my script works as expected with the Hikvision but fails with the Provision ISR - it doesn't open the stream. Running python -c "import cv2; print(cv2.getBuildInformation())" on windows (venv 3.9.2) and on docker machine bring slightly different results but it's beyond my (...)

8 May

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

• 03:11
  avcodec/vp3: Mark decoders as init-threadsafe - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vp3: Mark decoders as init-threadsafe Reviewed-by: Peter Ross <prossⓐxvid.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/vp3.c
• 02:26
  avcodec/vp3: Reindentation - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vp3: Reindentation Reviewed-by: Peter Ross <prossⓐxvid.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/vp3.c
• 02:24
  avcodec/vp3: Avoid code duplication when initializing coeff_vlcs - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vp3: Avoid code duplication when initializing coeff_vlcs Reviewed-by: Peter Ross <prossⓐxvid.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/vp3.c
• 02:08
  avcodec/vp3: Don't try to decode VP4 when VP4 decoder is disabled - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vp3: Don't try to decode VP4 when VP4 decoder is disabled Otherwise decoding will crash lateron; e.g. because dct_tokens is never set or because a VLC that has not been allocated is used. Reviewed-by: Peter Ross <prossⓐxvid.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/vp3.c
• 12:06
  GSoC: Add guided filter - Xuewei Meng git.videolan.org Git - ffmpeg.git/rss log
  GSoC: Add guided filter Add examples on how to use this filter, and improve the code style. Implement the slice-level parallelism for guided filter. Add the basic version of guided filter. Signed-off-by: Xuewei Meng <xwmeng96ⓐgmail.com> Reviewed-by: Steven Liu <liuqi05ⓐkuaishou.com> [DH] doc/filters.texi [DH] libavfilter/Makefile [DH] libavfilter/allfilters.c [DH] libavfilter/vf_guided.c

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

• 22:49
  FFMPEG not expected results with blend=screen with 2 video overlay - david Newest 'ffmpeg' Questions - Stack Overflow
  i want 2 video overlay with the screen effect ( known in photoshop, aftereffect,canvas etc) ffmpeg -i input1.mp4 -i input2.mp4 -filter_complex "blend=screen" output.mp4 but the lower layer becomes greyscale what i want is the expected PS 2 movie inputs dimensions are the same --
• 23:37
  How can I convert all .webm files in a folder to .m4a or .mp3? [duplicate] - NimishP Newest 'ffmpeg' Questions - Stack Overflow
  I have a folder filled with .webm and .m4a files. Is there a way, using either Windows Command Prompt or a Python script, to convert all of the .webm files to .m4a OR to convert all .webm files AND .m4a files to .mp3 files? I've tried using FFmpeg, but that only works for single files. How would I use this to mass convert all of the .webm files to .m4a files in a given folder/directory, if possible? If not, is there another library I can use to do (...)

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

• 23:36
  avcodec/avpacket: use av_malloc() to allocate an AVPacket - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/avpacket: use av_malloc() to allocate an AVPacket av_mallocz() is superfluous as get_packet_defaults() is called immediately after it's allocated, which will initialize the entire struct to default values. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/avpacket.c

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

• 22:35
  Evolution #4778 (Nouveau): Enlever jquery migrate - Maïeul Rouquette Revisions : SPIP
  Vu qu'on casse tout ou presque en 4.0.0, est-ce qu'on enleverait pas jquerymigrate (quitte à le mettre dans un plugin de retrocompatibilité). `JQMIGRATE: Migrate is installed, version 3.2.0` me disent mes logs
• 22:23
  Anomalie #4777 (Nouveau): Les labels et chaines de langue avec ou sans deux points. Revisions : SPIP
  Des labels avec ou sans deux points...¶ Les chaines de langues des labels, historiques de SPIP, ont parfois des deux points, parfois pas. Donc dès fois 'truc' => 'Truc', dès fois 'truc' => 'Truc :' C'est embêtant quand on veut quelque chose d'homogène. On se propose ici de réfléchir à une transition vers des chaines "sans deux points". uniformiser_label¶ J'ai déjà introduit (dans SPIP 4.0-alpha) une fonction / filtre dans inc/utils.php et utilisée dans le plugin 'statistiques' : uniformiser_label. Ce filtre, dans un squelette avec un idiome tel que enlève les espaces divers et : qui pourraient (...)

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

• 21:21
  Raspberry Pi HDMI to Virtual Input Device using UV4L Raspidisp - Darshan Patel Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert Raspberry pi hdmi as input device, and then I want to restream that using ffmpeg. I have used below command to add input device. uv4l --driver raspidisp --display 0 --framerate 5 --resolution 0 --auto-video_nr It's showing below output when run. [core] Trying to loading driver 'raspidisp' from built-in drivers... [core] Loading driver 'raspidisp' from external plug-in's... [driver] RaspiDisp Video4Linux2 Driver built Jan 6 2019 [core] Device detected! [core] Cannot create /dev/video0 (...)
• 06:41
  How to add watermark on Video using php and FFmpeg [duplicate] - Pushkar Poonia Newest 'ffmpeg' Questions - Stack Overflow
  I want to add a watermark on a video using php and tried lot of ways from internet but didn't understand anything. please help me on this
• 19:22
  memory leak in opencv/ffmpeg intregration ubuntu 16.04 - Joshua Newest 'ffmpeg' Questions - Stack Overflow
  Using ubuntu 16.04 opencv 2.4.9, ffmpeg 2.8.17. Below is the valgrind output. I am not using the ffmpeg library directly. The output buffer for encoding is initialized here, if we aren't encoding to a raw picture https://github.com/opencv/opencv/blob/2.4.9/modules/highgui/src/cap_ffmpeg_impl.hpp#L1626 Calling starts here, CvVideoWriter_FFMPEG::writeFrame https://github.com/opencv/opencv/blob/2.4.9/modules/highgui/src/cap_ffmpeg_impl.hpp#L1264 Which calls icv_av_write_frame_FFMPEG, passing the struct member (...) -- https://github.com/opencv/opencv/blob/2.4.9/modules/highgui/src/cap_ffmpeg_impl.hpp#L1626, https://github.com/opencv/opencv/blob/2.4.9/modules/highgui/src/cap_ffmpeg_impl.hpp#L1264, https://github.com/opencv/opencv/blob/2.4.9/modules/highgui/src/cap_ffmpeg_impl.hpp#L1365, https://github.com/opencv/opencv/blob/2.4.9/modules/highgui/src/cap_ffmpeg_impl.hpp#L1236
• 20:23
  ffmpeg - concatenate several videos with xfade transition - ilim Newest 'ffmpeg' Questions - Stack Overflow
  I have N videos, and I'm using ffmpeg to concatenate them with xfade transitions between them. The video files are named as positive integers representing their order in the concatenated output, and none of them have any audio. In fact, each file just includes a different image with no animation that stays on screen all through that video's duration. I'm using a simple command I found in a response to an existing question to concatenate the first 2 videos: ffmpeg -i 1.mp4 -i 2.mp4 -y -filter_complex "xfade=transition=fade:offset=3.5:duration=0.5"  (...)

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

• 18:38
  Evolution #4749: [UX] Comportement des labels : quoi par défaut, quoi ponctuel ? - RastaPopoulos ♥ Revisions : SPIP
  Un autre lien trouvé par marcimat : https://medium.com/intech-conseil-expertise/5-pr%C3%A9conisations-afin-doptimiser-la-saisie-de-vos-formulaires-partie-2-362012d39c8a (à noter que dans ces exemples il utilise pas mal la technique : label dans le champ tant que pas focus + puis label toujours visible au dessus quand on a focus)

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

• 14:23
  C# Convert Bitmap to FFmediaToolkits ImageData - Jan Černý Newest 'ffmpeg' Questions - Stack Overflow
  I have standard System.Drawing.Bitmap and I need to convert it to FFMediaToolkit.Graphics.ImageData. How can I achieve that ? I tried: ImageData.FromArray((byte[]) converter.ConvertTo(frame, typeof(byte[])), ImagePixelFormat.Argb32, frame.Width,frame.Height) but it did just gave me this error: Unhandled exception. System.ArgumentException: Pixel buffer size doesn't match size required by this image format. Thank you for (...)

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

• 14:19
  Anomalie #4772: "Supprimer" : demande de confirmation invisible - jluc - Revisions : SPIP
  Et donc la PR https://git.spip.net/spip/mediabox/pulls/4

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

• 13:41
  concatenating multiple url's with ffmpeg - JohnTerry Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to concat multiple urls with ffmpeg. let's say i have 4 urls which i want to concat and instead of adding those urls into files.txt manually, I want them to add them automatically. the command i am using is- file = "/home/xyz/Desktop/abc/files.txt" out = "/home/xyz/Desktop/abc/output.mp4" cmd = "ffmpeg -f concat -protocol_whitelist file,http,https,tcp,tls,crypto -safe 0 -i -c copy ".format(file,out) os.system(cmd) now is there any way to put the online urls in files.txt (...)
• 14:18
  C# on linux: FFmpeg (FFMediaToolkit) MediaOutput..Video.AddFrame(FrameToImageData(ImageData)) causes program to exit with code 139 - Jan Černý Newest 'ffmpeg' Questions - Stack Overflow
  In my C# program I have instance of MediaOutput from FFMediaToolkit. It is initialized like this: MediaOutput buffer = MediaBuilder.CreateContainer(videoPath).WithVideo(new VideoEncoderSettings(width: width, height: height, framerate: frameRate, codec: VideoCodec.H264) ).Create(); When I want to add frame to buffer I use this code: private static ImageData FrameToImageData(Bitmap bitmap) Rectangle rect = new Rectangle(System.Drawing.Point.Empty, bitmap.Size); BitmapData bitLock = bitmap.LockBits(rect, ImageLockMode.ReadOnly, (...)

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

• 12:55
  Anomalie #4772: "Supprimer" : demande de confirmation invisible - jluc - Revisions : SPIP
  L'erreur perdure sans aucun plugin ni aucun squelette et avec un mes_options réduit au define _DEV_VERSION_SPIP_COMPAT à 3.2.99. L'erreur js est du à un code erroné : /* */ Or c'est initialisé avec json_encode(mediabox_echappe_js_config($js_config)) $js_config et son mediabox_echappe_js_config ne sont pas vides, mais le json_encode échoue et et renvoie vie. Je vois qu'il y a un pb de charset sur ce site. Du coup j'ajoute JSON_INVALID_UTF8_IGNORE en 2eme argument du fragile json_encode. Et ça marche : code js généré complet, plus d'erreur (...)

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

• 06:18
  FFmpeg Throwing Up Error After Concat Attempt [closed] - OrdinaryCarrot16 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to convert my DVDs using FFmpeg, while doing additional filtering and concatenation. The script I am making is very WIP, but it isn't working at the moment. It throws up the error: "No such filter: '' Error initializing complex filters. Invalid argument" Am I using the correct syntax? :: Generate dummy file with blank video & audio streams (for spacing out portions when concating) ffmpeg -y -f lavfi -i color=size=720x480:color=black:rate=30 -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -c:a aac -c:v libx264 -t 1 (...)
• 09:36
  Use fluent-ffmpeg to tell if a file is a video or audio - afterglowlee Newest 'ffmpeg' Questions - Stack Overflow
  I am using node-fluent-ffmpeg module in NodeJS. It is very good that fluent-ffmpeg provides functions to get the metadata of a video and audio file. https://github.com/schaermu/node-fluent-ffmpeg#reading-video-metadata I have tried on Mac OS to use the "resolution" attribute in the metadata to tell if a file is audio only or video, i.e. if both resolution.w and resolution.h are 0, then this file is an audio. This work fine on Mac OS. But some strange things happened that this doesn't work on Windows platform (I have tried Windows 7 64bit and Windows 2008) using (...) -- https://github.com/schaermu/node-fluent-ffmpeg#reading-video-metadata
• 08:12
  Trying to add Watermark to Video FFMPEG - Michael Bouix Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to add watermark to my video When I upload some videos work fine, but some videos I get an error that retrieve the file with 0kb. I don't know if its why the video is 4k... I have no idea And I'm running another command to scale the video with the same file and work fine too, only when adding my watermark I get the error This is the command: $comando_arquivo_water = "/usr/bin/ffmpeg -nostdin -i ".$path_video." -i ".$path_logo." -filter_complex '[1][0]scale2ref=w=oh*mdar:h=ih*0.2[logo][video];[video][logo]overlay=(W-w)/2:(H-h)/2' -y (...)
• 06:38
  Ffmpeg screen tear - Cipher Newest 'ffmpeg' Questions - Stack Overflow
  Screen tear issue in ffmpeg on manjaro linux, View this ffmpeg command used- ffmpeg -y -f x11grab -s 1366x768 -i :0.0 out.mkv ffmpeg -version ffmpeg version n4.2.2 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.3.0 (Arch Linux 9.3.0-1) configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi (...) -- View this
• 04:41
  How to download videos from m3u8 that has sample-aes encryption [closed] - Rajat Bisht Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to download my online lecture from m3u8 link but it shows "ffmpeg do not support sample-aes yet". Link of lecture: https://pw.pc.cdn.bitgravity.com/b7826d86-612d-4ef2-b17c-cc4f91d9584c/master.m3u8 . It is sample-aes-ctr encrypted. Also I know python a little bit so it would be better if I could download it using python. Also I have link to mpd file: https://pw.pc.cdn.bitgravity.com/b7826d86-612d-4ef2-b17c-cc4f91d9584c/master.mpd. Please can anyone tell any module or something which can help in downloading it..... Thanks in (...) -- https://pw.pc.cdn.bitgravity.com/b7826d86-612d-4ef2-b17c-cc4f91d9584c/master.m3u8, https://pw.pc.cdn.bitgravity.com/b7826d86-612d-4ef2-b17c-cc4f91d9584c/master.mpd
• 03:50
  How to stream a video formatted in hls, m3u8 in Laravel? - black man Newest 'ffmpeg' Questions - Stack Overflow
  In database, videos are saved in m3u8 format as shown below. I want to open video when I click on button or download it. I read this. But still not clear for me? Thanks in advance. dfa7088-9d3c-4b23-0010a-59fc63f4441d/hls/qe8b807916f8816a.m3u8 ⓐif( $item->media_type=='v') media_path" controls width="200px" height="200px"> if(Hls.isSupported()) var video = document.getElementById('video'); var hls = new Hls(); hls.loadSource('playlist.m3u8'); hls.attachMedia(video);  (...) -- this
• 02:04
  Is there a way to use ffmpeg to determine the encoding of a file before transcoding? - Bill Noble Newest 'ffmpeg' Questions - Stack Overflow
  I am planning to use ffmpeg to ensure all video files uploaded to my website are encoded as mp4 h264. Rather than automatically processing every file I would like to minimise the processing overhead by only processing those files that are not already mp4 h264. Is there an easy way to do this either with ffmpeg or with another command line utility?
• 02:03
  using FFMPEG with silencedetect to remove audio silence - Zahlii Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use the following command with the latest ffmpeg build to remove silence from my .mp3 files: ffmpeg -i SILENCE.mp3 -af silencedetect=n=-50dB:d=1 -y -ab 192k SILENCE_OUT.mp3 However, the following output is produced: ffmpeg version N-66154-g1654ca7 Copyright (c) 2000-2014 the FFmpeg developers built on Sep 5 2014 22:10:38 with gcc 4.8.3 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab le-iconv --enable-libass (...)
• 00:53
  ffmpeg: convert to h264 except when original video is already in h264 [duplicate] - Julius Newest 'ffmpeg' Questions - Stack Overflow
  I want to write a script to convert a bunch of videos to h264. But it seems that when i do something like ffmpeg -i in.mkv -c:a copy -c:v libx264 out.mkv it processes the video, even though it is unnecessary. Is there some option to tell ffmpeg "Only convert if not already in this format"? I'm aware I can check with ffprobe first and adapt my script, but the usecase seems common enough to make me think I'm missing something.
• 00:38
  How do I send pydub audio segment raw data using discord.py to a voice channel? I get error, hear nothing or gibberish noise depending on parameters - Hiello Newest 'ffmpeg' Questions - Stack Overflow
  As the title says, I've been trying to send chunks audio data using discord.py to a voice channel. So using pydub I basically load an mp3 file (and playback works so file is ok), make chunks, send them as packages. And then I tried to convert the mp3 file to opus file. It's playing too. Both files are ok. There are a few stuff: So the issue is, after I make the raw audio chunks list and try to send each element in it: a) With Encode=True, I get an error about NoneType object not having encode attribute. b) With Encode=False, it actually sends the data but (...)
• 00:36
  Youtube-dl: Download video with maximum FPS and change FPS using OpenCV - MmBaguette Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to download a YouTube video using YouTube-dl and specifying a maximum FPS. I don't want the lowest FPS, but I also don't want an FPS higher than 30. The code below does not work, but it was my best attempt. ydl_opts = 'format': '(bestvideo[fps If not, can I change the FPS of a video using OpenCV? I tried using cap.set(cv2.CAP_PROP_FPS) but this doesn't work either. cap = cv2.VideoCapture(file) fps = cap.get(cv2.CAP_PROP_FPS) print(fps) # prints 60.0 cap.set(cv2.CAP_PROP_FPS) fps = (...)

7 May

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

• 06:34
  avcodec/dvdsubdec: Mark decoder as init-threadsafe - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/dvdsubdec: Mark decoder as init-threadsafe Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/dvdsubdec.c
• 06:33
  avcodec/dvdsubdec: Remove unnecessary close function - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/dvdsubdec: Remove unnecessary close function Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/dvdsubdec.c
• 06:25
  avcodec/metasound: Mark decoder as init-threadsafe - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/metasound: Mark decoder as init-threadsafe Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/metasound.c
• 06:23
  avcodec/twinvqdec: Mark decoder as init-threadsafe - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/twinvqdec: Mark decoder as init-threadsafe Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/twinvqdec.c
• 06:13
  avcodec/nuv: Mark decoder as init-threadsafe - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/nuv: Mark decoder as init-threadsafe Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/nuv.c
• 05:40
  avcodec/webp: Mark decoder as init-threadsafe - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/webp: Mark decoder as init-threadsafe Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/webp.c
• 05:08
  avcodec/j2kenc: Make encoder init-threadsafe - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/j2kenc: Make encoder init-threadsafe Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/j2kenc.c
• 04:49
  avcodec/jpeg2000dec: Make decoder init-threadsafe - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/jpeg2000dec: Make decoder init-threadsafe The JPEG-2000 decoder and encoder share common luts; the decoder initializes them once, guarded by a dedicated AVOnce, whereas the encoder initializes them always during init. This means that the decoder is not init-threadsafe; in fact there is a potential data race because these luts can be initialized while an active decoder/encoder is using them. Fix this and make the decoder init-threadsafe by making the initialization function guard initialization itself with a dedicated AVOnce. Signed-off-by: Andreas Rheinhardt (...)
• 04:12
  avcodec/mqc: Hardcode tables to save space - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/mqc: Hardcode tables to save space mqc currently initializes three arrays at runtime; each of them has 2 * 47 elements, one is uint16_t, two are uint8_t, so that their combined size is 8 * 47. The source data for these initializations is contained in an array of 47 elements of size six. Said array is only used in order to initialize the other arrays, so the savings are just 2 * 47B. Yet this is dwarfed by the size of the code for performing the initializations: It is 109B (GCC 10.2, x64, -O3 albeit in an av_cold function); this does not even include the size of the code in the (...)
• 02:51
  avcodec/vorbisenc: Combine codebooks, avoid relocations - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vorbisenc: Combine codebooks, avoid relocations The Vorbis encoder has an array of a structure containing all the ingredients for a codebook; this includes a pointer to the actual codebook and some even have a pointer to an array containing quant values. Each of these real codebooks is an array of its own. These pointers lead to relocations and therefore the array will be placed in .data.rel.ro and not in .rodata. This commit avoids the pointers altogether by combining all the actual codebooks into one big array; the actual codebooks are now accessed consecutively by incrementing (...)
• 02:06
  avcodec/vorbisenc: Mark encoder as init-threadsafe - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vorbisenc: Mark encoder as init-threadsafe Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/vorbisenc.c
• 08:42
  avfilter/vf_dnn_classify: add result check for av_frame_get_side_data - Steven Liu git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_dnn_classify: add result check for av_frame_get_side_data CID: 1482090 there can return null from av_frame_get_side_data, and will use sd->data after av_frame_get_side_data, so should check null return value. Signed-off-by: Steven Liu <liuqi05ⓐkuaishou.com> [DH] libavfilter/vf_dnn_classify.c
• 15:16
  doc/muxers: note movie_timescale option in movenc - Gyan Doshi git.videolan.org Git - ffmpeg.git/rss log
  doc/muxers: note movie_timescale option in movenc [DH] doc/muxers.texi
• 18:50
  avformat/rpl: Support files containing Replay IMA ADPCM audio - Cameron Cawley git.videolan.org Git - ffmpeg.git/rss log
  avformat/rpl: Support files containing Replay IMA ADPCM audio Signed-off-by: Zane van Iperen <zaneⓐzanevaniperen.com> [DH] libavformat/rpl.c
• 18:50
  avcodec: Implement Acorn Replay IMA ADPCM decoder - Cameron Cawley git.videolan.org Git - ffmpeg.git/rss log
  avcodec: Implement Acorn Replay IMA ADPCM decoder Signed-off-by: Zane van Iperen <zaneⓐzanevaniperen.com> [DH] Changelog [DH] doc/general_contents.texi [DH] libavcodec/Makefile [DH] libavcodec/adpcm.c [DH] libavcodec/allcodecs.c [DH] libavcodec/codec_desc.c [DH] libavcodec/codec_id.h [DH] libavcodec/utils.c [DH] libavcodec/version.h
• 04:55
  avcodec/avpacket: always initialize the new packet in avpriv_packet_list_put() - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/avpacket: always initialize the new packet in avpriv_packet_list_put() If a copy callback is provided by the caller, the packet passed to it was zeroed instead of initialized with default values. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/avpacket.c

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

• 23:25
  resize and crop HD video into square video using ffmpeg - Ahmet Cetin Newest 'ffmpeg' Questions - Stack Overflow
  I want to scale and crop HD video (1920x1080) into square one while adding watermark. I tried ffmpeg -i video.mp4 -i watermark.png -filter_complex "[0]scale=720:720,crop=720:720[a];[1]scale=720:720[b];[a][b]overlay=(W-w)/2:(H-h)/2" output.mp4 but it produces output with 889x500. Can anyone help me? What I'm doing wrong?
• 22:20
  Generating a waveform using ffmpeg - krisph Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to generate a waveform image using ffmpeg. I have successfully made a waveform image, however it doesn't look very nice... I have been looking around to try and style the image to make it look nicer, however I have been unable to find any information on this or any tutorials on this. I am using PHP and shell_exec to create the waveform. I am aware that there are php library that can do this but due to file format this is a lengthy process. The code I am using is as follows: $command = 'convertvid\\bin\\ffmpeg (...)
• 22:15
  compiling ffmpeg with libvpx, unable to find decoder - mr.Nobody Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to compile ffmpeg with libvpx support on Windows with Visual Studio compiler. I am using msys2 for building platform and running flowing commands for libvpx cd libvpx ./configure --prefix="$HOME/ffmpeg_build" --target=x86_64-win64-vs16 --as=yasm make make install then adding path file and compiling ffmpeg cd ffmpeg PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure --toolchain=msvc --arch=x86_64 \\ --prefix="$HOME/ffmpeg_build" \\ --pkg-config-flags="--static" \\  (...)

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

• 17:52
  avcodec/h263, h263data: Move ff_h263_init_rl_inter to h263.c - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/h263, h263data: Move ff_h263_init_rl_inter to h263.c The SVQ1 decoder does not need mpegvideo or rl.c, but it uses stuff from h263data.c. But since 61fe481586425a41d45e371de1e875b49882477d h263data.c called ff_rl_init() and this of course led to build errors when the SVQ1 decoder is enabled and mpegvideo disabled. Fix this by moving ff_h263_init_rl_inter() to h263.c. Fixes ticket #9224. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/h263.c [DH] libavcodec/h263.h [DH] libavcodec/h263data.c [DH] (...)
• 17:45
  configure: Add missing mpegvideo dependency for IPU decoder - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  configure: Add missing mpegvideo dependency for IPU decoder Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] configure

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

• 20:34
  Anomalie #4775: warning en php 8 avant l'installation - b b Revisions : SPIP
  Invalid en fait, car le pb était bien dans safehtml, et s'il faut corriger le pb d'ordre imposé c'est dans SVP.
• 20:33
  Anomalie #4776 (Fermé): Plug invisible depuis svp - b b Revisions : SPIP
• 20:33
  Anomalie #4775 (Fermé): warning en php 8 avant l'installation - b b Revisions : SPIP
• 20:24
  Anomalie #4776: Plug invisible depuis svp - Franck D Revisions : SPIP
  le problème disparait avec la pr de maieul https://git.spip.net/spip/safehtml/pulls/2
• 20:24
  Anomalie #4775: warning en php 8 avant l'installation - Franck D Revisions : SPIP
  Le problème disparait avec la pr de maieul : https://git.spip.net/spip/safehtml/pulls/2
• 20:00
  Anomalie #4775: warning en php 8 avant l'installation - Franck D Revisions : SPIP
  A voir s'il y a un lien avec: https://core.spip.net/issues/4776
• 20:00
  Anomalie #4776 (Fermé): Plug invisible depuis svp - Franck D Revisions : SPIP
  Hello :) Firefox 88.0.1 SPIP 4.0.0-alpha GIT [master: 42d36eda] Laragon avec: php 8.0.3 Apache 2.4.46 MySQL 8.0.23 phpMyAdmin 5.1.0 Juste pour dire qu'il y a pleins de warning au moment de l'installation et que le plug n'ai pas visible dans "svp" une fois l'installation fini (voir copie d'écran) alors qu'il est bien présent dans le dossier plugins-dist A savoir que j'ai un fichier mes_options avec dedans: define('_NO_CACHE', -1); define('_INTERDIRE_COMPACTE_HEAD_ECRIRE', true); error_reporting(E_ALL^E_NOTICE); ini_set ("display_errors", "On"); define('SPIP_ERREUR_REPORT',E_ALL); (...)
• 19:59
  Anomalie #4775 (Fermé): warning en php 8 avant l'installation - Franck D Revisions : SPIP
  Hello :) Firefox 88.0.1 SPIP 4.0.0-alpha GIT [master: 42d36eda] Laragon avec: php 8.0.3 Apache 2.4.46 MySQL 8.0.23 phpMyAdmin 5.1.0 Juste pour dire que, si je vais sur l'url avant que spip soit installer, j'ai 3 warnings (qui sont aussi visible une fois l'installation faite) dans tous les cas, il suffit d'actualiser la page pour qu'elles disparaissent (voir copie d'écran) A savoir, j'ai un fichier mes options avec dedans: define('_NO_CACHE', -1); define('_INTERDIRE_COMPACTE_HEAD_ECRIRE', true); error_reporting(E_ALL^E_NOTICE); ini_set ("display_errors", "On"); (...)
• 19:04
  Anomalie #4774 (En cours): images/rss est bloqué par uBlock Origin avec Fanboy's Annoyance - b b Revisions : SPIP
  Franchement, je pense que c'est HS, on ne va pas renommer l'image car une liste précise considère que le terme RSS est à bloquer. Je ne ferme pas tout de suite pour laisse d'autres personnes exprimer leur avis sur la question...
• 17:59
  Anomalie #4706: safehtml vire des trucs légitimes - cedric - Revisions : SPIP
  ça vaut ce que ça vaut, mais j'ai mis la lib a jour et introduit des tests unitaires https://git.spip.net/spip/safehtml/commits/branch/master
• 15:58
  Anomalie #4774 (En cours): images/rss est bloqué par uBlock Origin avec Fanboy's Annoyance Revisions : SPIP
  Bonjour, Voici ce que me rapporte ublock origin : Filtre /images/rss- Liste de filtres Fanboy’s Annoyance Contexte Type image Lien /prive/themes/spip/images/rss-16.png Cela bloque donc l'icone du menu publication/Suivre la vie du site. Aussi bien en SPIP 3.2 que 4.0.

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

• 13:05
  avformat/hls: use av_strncasecmp() - Limin Wang git.videolan.org Git - ffmpeg.git/rss log
  avformat/hls: use av_strncasecmp() Reviewed-by: Steven Liu <lqⓐchinaffmpeg.org> Signed-off-by: Limin Wang <lance.lmwangⓐgmail.com> [DH] libavformat/hls.c
• 03:02
  avcodec/alsdec: Fix decoding error with mono audio files - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/alsdec: Fix decoding error with mono audio files highest_decoded_channel is modified to serve as meant. Reported-by: Noboru Harada <noboruⓐieee.org> Regression since: a11aa5f3ed7ee4d2385a7b725d43f6070d790b4c Fixes: Sin48k16bit1ch.mp4 Reviewed-by: Thilo Borgmann <thilo.borgmannⓐmail.de> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/alsdec.c

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

• 15:38
  FFMPEG: max parameter size for adelay parameter - Aleksandar Nikolic Newest 'ffmpeg' Questions - Stack Overflow
  Command with large size adelay parameter throws an error Delay must be non negative number. Failed to configure input pad on Parsed_adelay_1 Error reinitializing filters! Failed to inject frame into filter network: Invalid argument Error while processing the decoded data for stream #0:1 The command is: ffmpeg -y -i input.mp4 -filter_complex "[0:a]adelay=55555555:all=1[a0];[a0]amix=inputs=1[a]" -map [a] out.mp3 How can this be solved? What's the max size for adelay (...)
• 14:49
  Use FFMPEG to create GTA 5 style loading screen/video - Archer Newest 'ffmpeg' Questions - Stack Overflow
  Goal: Using FFMPEG I would like to make something like these GTA 5 loading screens using only some elements. The goal is to be automated in the end so I can generate thousands of videos with the elements below placed in different folders. https://youtu.be/0A4K0bCkYdg?t=108 Input files: background.jpg foreground.png logo.png theme.mp3 Current command: ffmpeg.exe -i background.jpg -i foreground.png -i logo.png -i theme.mp3 -filter_complex " \\ [0:v]scale=1920:1080 [background_1], \\ [1:v]scale=500:500:force_original_aspect_ratio=decrease (...) -- https://youtu.be/0A4K0bCkYdg?t=108, post, shown
• 12:24
  How can I control and reduce memory used by FFmpeg in AWS Lambda? - Martyna Newest 'ffmpeg' Questions - Stack Overflow
  I set up AWS Lambda (Python 3.8) with FFmpeg as a layer to repackage .mov files to HLS. Here's the command which I use to repackage clips: /opt/ffmpeg -i file_name.mov -codec: copy -start_number 1 -hls_time 10 -hls_playlist_type vod -hls_list_size 0 -f hls -master_pl_name master_name.m3u8 master.m3u8 Command is then being run by using: subprocess.run(ffmpeg_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, preexec_fn=setlimits) Everything is working fine for smaller files (e.g. 5GB) but I also need it to work for files of size up to (...)

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

• 12:39
  Anomalie #4773 (Fermé): Critère de tri "multi" et limite par défaut ? - Guillaume Fahrner Revisions : SPIP
  Inutile, à 100 cela continu d'être très lent sur des tables très volumineuses. Autant surcharger au cas par cas.
• 11:51
  Anomalie #4773 (Fermé): Critère de tri "multi" et limite par défaut ? - Guillaume Fahrner Revisions : SPIP
  Bonjour, est-il-possible de limiter par défaut le nombre de résultats dans les boucles utilisant le crtière de tri "multi" ? Sur des tables avec un volume moyen (pour mysql, 100k) le critère abouti a des ralentissements très importants. Avec des volumes supérieur (500k et plus), cela fait carrément "planter" la DB ; les requêtes ne se terminant jamais. Filtrer sur les 10 000 premiers résultats devrait suffire pour que personne ne soit impacté négativement/ne s'en rende compte. C'est une idée (...)

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

• 10:33
  Is is possible to create custom shapes with ffmpeg? - nardo Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to create a xstack layout with ffmpeg commands and from what I have seen online it is only possible to create rectangles with all the videos merge them into one video. However, I am trying to create a layout with custom shapes with X and Y coordinates. Example: Would this be possible with ffmpeg or do I need another library or open source code base to create this? --
• 10:29
  how to install ffmpeg-static? m1/os x - Changhoon Lee Newest 'ffmpeg' Questions - Stack Overflow
  i want using library eugeneware/ffmpeg-static Link: eugeneware/ffmpeg-static i using arch 'arm64' and os.platform() 'drawin' There is a binary in the document that corresponds to me, but it is not installed. first time using the library and I have no knowledge of binaries. Can someone tell me how to install this library? -- eugeneware/ffmpeg-static,
• 11:05
  FFMPEG record http video stream with normal speed - user3119509 Newest 'ffmpeg' Questions - Stack Overflow
  I'm recording an http stream from my IP Camera (TPLINK NC200), using this command: ffmpeg -i http://admin:YWRtaW4=ⓐ192.168.0.18:8080/stream/getvideo -t 30 -acodec copy -vcodec copy abc.mp4 As you can see , the video length is set to 30 seconds ( -t option ) . But it takes about 1 minute 30 seconds to record , and the video speed is very high ( the camera recording a stopwatch and a 30-second video recorded the timer to 1 minute and 11 seconds ). Is there some ffmpeg option to get a normal speed video? Or the problem is the camera configuration? (...)
• 10:58
  FFMPEG: Specifying Output Stream Type When Combing Multiple Filters - Leonard Bedner Newest 'ffmpeg' Questions - Stack Overflow
  I currently have 3 separate ffmpeg commands that do the following: Overlay a watermark on a video: ffmpeg -i samplegreen.webm -i foregrounds/myimage.png -r 30 -filter_complex "overlay=(W-w)/2:H-h" -af "adelay=700" output.mp4 Overlay the results of 1) onto a beach video: ffmpeg -i backgrounds/beachsunsetmp4.mp4 -i output.mp4 -filter_complex "[1:v]chromakey=0x005d0b:0.1485:0.03[ckout];[0:v][ckout]overlay[o]" -map [o] -map 1:a -shortest somefolder/sample_video.mp4 Merge the audio of the results of 2) with another audio file: ffmpeg -i somefolder/sample_video.mp4 -i (...)
• 10:36
  What are http server options available for HLS content - Nikhilesh Goyal Newest 'ffmpeg' Questions - Stack Overflow
  Need to send and receive HLS stream using ffmpeg on Xilinx Zynq between multiple xilinx devices. As HLS is (HTTP live streaming) needs some HTTP server for this purpose. I want to know which server is best for this purpose. I need to run server also on Xilinx Zynq device.
• 09:46
  Faster way to split up video and remerge clips using FFMPEG - Joemgu Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to take a video file (mp4, mkv), split it up into frame-accurate smaller clips and re-merge those clips together into a single video without losing much quality and keeping a similar filesize and all that as fast as possible. The clips can get very short (less than a second) and I need them to be frame-accurate. Therefore it seems that using -c copy as encoder isn't an option, as cutting by keyframe isn't accurate enough in this case. (Tried it out, doesn't work, input/output seeking didn't make a big difference) Right now I am re-encoding (...)
• 08:24
  Drag and drop ffmpeg batch file - johhnnyy Newest 'ffmpeg' Questions - Stack Overflow
  I have little to nothing experience with ffmpeg and found this nice drag and drop script but it only work for one file at the time. Can it be modified to work for multiple files at the same time? pushd %~dp0 echo Encoding 720p ... ffmpeg.exe -i "%~1" -vf scale=1280x720:flags=spline,format=yuv420p,"subtitles='%~n1'%~x1" -map_metadata -1 -movflags faststart -c:v libx264 -profile:v main -level:v 4.0 -preset veryfast -crf 16 -maxrate 20M -bufsize 25M -x264-params colormatrix=bt709 -c:a copy "%~n1_720p.mp4" popd echo Done. (...)
• 08:23
  How could I achieve different transition/animation on text using ffmpeg? [closed] - najam ulhassan Newest 'ffmpeg' Questions - Stack Overflow
  I want to apply certain transition effects on my input text using mobile-ffmpeg i.e. we found in our videos now a days. I have added a transition to explore what I needs: How could I achieve this or related using 'ffmpeg' in android. Note: I have to work on lyrics... preview-gif -- preview-gif

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

• 05:19
  avcodec/ttmlenc: Don't confuse capabilities and caps_internal - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/ttmlenc: Don't confuse capabilities and caps_internal Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/ttmlenc.c

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

• 05:40
  How to set yuv to full range in a mpeg2video? - Jefferson Villasan Josol Newest 'ffmpeg' Questions - Stack Overflow
  I've found out that YUV420P has a limited range based on MediaInfo. How can I set that into Full range using ffmpeg? Does anyone know how to set it into Full? I'm currently using mpeg2video -q:v 0 because it has an acceptable quality and small file sizes compared to x264 -crf 0. Thanks in advance for those who can help me! Edit: I prefer mpeg2video because it is much faster compared to x264 encoding. And I've also noticed that -q:v 0 is better than -q:v 2. I don't know if it sounds strange but on my phone, the quality is really better if I use the -c:v (...)
• 04:53
  How can I automate the creation of simple videos with different audio files, intro and outro within the duration of the audio? - BrianOgh Newest 'ffmpeg' Questions - Stack Overflow
  How can I automate the process of creating videos, where I have one, or more audio files (with different length), intro video, and outro image? Picture shows how it usual looks in video editor Picture of how it looks in Premiere Pro: After making several of these videos with the same editing in Premiere Pro, I thought that its probably possible to automate the process using code, ffmpeg or moviepy or smth like that. I tryed to use ffmpeg, but it can only combine audio with image, I cant add outro image there so that its on top of the audio, it can be added after, but I (...) -- Picture of how it looks in Premiere Pro
• 04:50
  ffmpeg command throwing "Invalid duration specification for ss: 00:00:00,000" - Shikhar Jaiswal Newest 'ffmpeg' Questions - Stack Overflow
  ffmpeg -i input.mp4 -ss 00:00:00,000 -to 00:00:03,466 -c:v copy output.mp4 The above is my ffmpeg command which is throwing the error of "Invalid duration specification for ss 00:00:00,000". I think it is throwing the error because of the timestamp format. It is not taking input of milliseconds. That is why it is not executing the full command. Any idea how to fix this?
• 04:14
  Why is libavcodec trying to write an mp4 w/ time_base 1/30000, 29.97fps, but writing a video w/ time_base 1/90000? - Sniggerfardimungus Newest 'ffmpeg' Questions - Stack Overflow
  I've been digging through libavcodec, trying to make sense of the videos I'm getting out of it. I call avformat_write_header and step through it. At every point in execution, the time_base is 1/30000 and the frame rate is 30000/1001. At no point are any of these values corrupted in my video stream or my output codec content. In dump.c, where avformat_write_header prints some debugging info about the video being created, I see this: Output #0, mp4, to 'D:\\-------------\\test1.ffsw.mp4': Metadata: encoder : Lavf58.64.100 Stream #0:0: Video: h264 (...)