27 avril

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

• 06:44
  How to make ffmpeg available inside my Docker container? - vcamargo Newest 'ffmpeg' Questions - Stack Overflow
  I'm currently trying to run a ffmpeg Docker image inside my own container with docker-compose using the depends_on clause. But when I try to reach ffmpeg inside my code, it seems like it's not available system-wide and I get an error. I believe I'm misconfiguring Docker. My current Dockerfile is as follows: FROM node:9 WORKDIR /usr/app COPY package*.json ./ RUN npm install --quiet COPY . . And my docker-compose.yml: version: '3' services: app: build: . command: npm run dev volumes: - .:/usr/app/ - /usr/app/node_modules ports: - "3000:3000" depends_on: - ffmpeg ffmpeg: image: (...)
• 07:00
  mov atom not found when merging images on debian 9 - robert tamunoemi Newest 'ffmpeg' Questions - Stack Overflow
  Am extracting images from videos which I use in creating slideshows. Creating slideshows from the extracted images only works fine.However, when I add an image from my computer to the sets of extracted images, I get this error ffmpeg version 3.2.10-1~deb9u1 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 6.3.0 (Debian 6.3.0-18) 20170516 configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls (...)
• 03:28
  RTSP Frame Grabbing creates smeared , pixeled and corrupted images - Robob Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to capture a single frame per second from a RTSP stream with following command ffmpeg -i rtsp://XXX -q:v 1 -vf fps=fps=1 -strftime 1 ZZZZ\\%H_%M_%S.jpg But some of the frames are smeared ,pixeled and corrupted - this effect is drastically increases if rtsp resolution is increased (if the resolution is decreased for example to 720P most of the frames are OK) I have to say that playing same rtsp stream in VLC or FFPLAY is flowless. How I can fix it to grab better quality Thanks in (...) -- ,
• 02:59
  Adding GIF as Watermark and Loop FFMPEG - Muhammad Sanaullah Newest 'ffmpeg' Questions - Stack Overflow
  I try to add GIF over a video and continuously loop, but it animate once and stop on the video ffmpeg.exe -i "video.mp4" -i "ani.gif" -filter_complex "[1:v]format=yuva444p,setsar=1,scale=80:80,rotate=PI/6:c=blackⓐ0:ow=rotw(PI/6):oh=roth(PI/6) [rotate];[0:v][rotate] overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2" -codec:a copy -y output.mp4 What is the solution? Thanks,

Piwik http://piwik.org/

• 00:35
  GDPR compliance for Matomo’s Premium Features like Heatmaps & Session Recording, Form Analytics, Media Analytics & co - InnoCraft Piwik
  The General Data Protection Regulation (EU) 2016/679, also referred to as RGPD in French, Datenschutz-Grundverordnung, DS-GVO in German, is fast-approaching. It is now less than 30 days until GDPR applies to most businesses around the world on 25th May 2018. If you haven’t heard of this new regulation yet, I recommend you check out our GDPR guide which we continue to expand regularly to get you up to speed with it. GDPR compliance in Matomo We are currently adding several new features to Matomo to get you GDPR ready. You will have for example the possibility to delete and export data for (...) -- GDPR compliance for Matomo’s Premium Features like Heatmaps & Session Recording, Form Analytics, Media Analytics & co, Analytics Platform - Matomo

26 avril

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

• 00:35
  avcodec/cbs_mpeg2: use existing buffer reference when splitting fragments - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/cbs_mpeg2: use existing buffer reference when splitting fragments Reviewed-by: Mark Thompson <swⓐjkqxz.net> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/cbs_mpeg2.c
• 00:27
  avcodec/cbs: create reference counted fragments in ff_cbs_read_extradata() - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/cbs: create reference counted fragments in ff_cbs_read_extradata() This way, every CodedBitstreamType->split_fragment() function can safely assume the fragment passed to them will be reference counted, potentially simplifying code. Reviewed-by: Mark Thompson <swⓐjkqxz.net> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/cbs.c

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

• 23:43
  not able to open image generated by ffmpeg - user3745870 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to get images from the video stream using ffmpeg in python and I need the raw bytes to do further things. I am trying to store the raw bytes in image file so if my file opens then I can confirm that the raw bytes I have got are correct. import subprocess as sp def getImages(self): cmd = ['ffmpeg', '-ss', 2, '-i', url, '-t', 2, '-f', 'image2pipe', '-s', '420x360', '-pix_fmt', 'rgb24', '-vcodec', 'rawvideo', '-vf', 'fps=fps=1', '-'] pipe = sp.Popen(cmd, stdout = sp.PIPE, bufsize=10**8) raw = pipe.stdout.read(420*360) file = open('image.jpg','wb') file.write(raw) I see a file (...)

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

• 23:35
  avfilter/vf_maskedclamp: add slice threading - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_maskedclamp: add slice threading Signed-off-by: Paul B Mahol <onemdaⓐgmail.com> [DH] libavfilter/vf_maskedclamp.c

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

• 22:17
  Scaling nginx-rtmp livestreaming with ffmpeg transcoding - hoodsy Newest 'ffmpeg' Questions - Stack Overflow
  I currently have a functional livestreaming setup using the prolific nginx-rtmp library, and I'm using ffmpeg to provide various resolutions of my stream. The only problem is, ffmpeg with only 2 outputs eats up ~50% of my CPU. I'd like to be able to support up to 20 streamers at once – with the current demand, that would mean I need 10x the CPU power that I currently have! How can I scale my transcoding setup with nginx-rtmp and ffmpeg? rtmp server listen 1935; application src live on; exec_push ffmpeg -i rtmp://localhost/src/$name -c:v copy -preset:v ultrafast -b:v 512K -c:a copy (...)

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

• 17:57
  avfilter/vf_atadenoise: do not abort if user specified invalid size - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_atadenoise: do not abort if user specified invalid size Update documentation with new size default. Signed-off-by: Paul B Mahol <onemdaⓐgmail.com> [DH] doc/filters.texi [DH] libavfilter/vf_atadenoise.c

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

• 21:01
  Creating complicated ffmpeg videos (like those Facebook friendship videos) [on hold] - onassar Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to understand the technology used to create videos like these: https://www.youtube.com/watch?v=b3PBN3zC4M0 How are these kinds of things put together (eg what technologies)? Want to learn more about this, and am assuming it's related to ffmpeg, but I'm a bit of my depth. Appreciate anything, including even just a list of the possible different technologies used to create something like that. -- https://www.youtube.com/watch?v=b3PBN3zC4M0
• 20:34
  FFMPEG: crop a video without losing the quality - mrana Newest 'ffmpeg' Questions - Stack Overflow
  I have mp4 video of 1920x1080. I would like to crop the video to 480x270 without quality loss. I am using the following command: ffmpeg -i input.mp4 -filter:v "crop=480:270:200:200" -crf 23 output.mp4 I also tried: ffmpeg -i input.mp4 -filter:v "crop=480:270:200:100" -c:a copy -qp 0 output.mp4 I used -crf 23 and -qp 0 for loseless video cropping, but after cropping video has lost quality. Does anyone know how I can crop the video without losing the (...)
• 18:35
  ffmpeg images to video with different start times and durations - Rich Newest 'ffmpeg' Questions - Stack Overflow
  I've recently learned of FFMPEG's existence and I am trying to use it on my wordpress site. On the site I am working on a html/php/js form page that lets users upload pictures, and set when the image shows and for how long. Right now the code I have is only showing one image for the entire video. &1'); ?> I tried setting "-t" for the duration with my php variables but nothing changes and I cant figure out what to use for the start time of each image. Also, when writing shell_exec commands, instead of it all being on one line, is there a way to write working command code in php (...)
• 18:10
  ffmpeg is reducing video duration while compressing - Alays Newest 'ffmpeg' Questions - Stack Overflow
  I am using this command line to compress my_video.mp4 (duration 5s) and overwrite the initial file. ffmpeg -y -i my_video.mp4 -vcodec h264 -acodec mp2 my_video.mp4 If I run this command with a video of 5s it is reducing my_video.mp4 to 1s What is wrong here ? I just want my output file to be the initial file. If I run ffmpeg -y -i my_video.mp4 -vcodec h264 -acodec mp2 my_video2.mp4 my_video2.mp4 is compressed and have a duration of 5s and my_video.mp4 have a duration of 1s I don't (...)
• 10:50
  How to change fps when decode use c++ code(ffmpeg) [on hold] - Lake Hu Newest 'ffmpeg' Questions - Stack Overflow
  I am working to do decode the video file using ffmpeg api code(c/c++),when I decode one video where I download from the net.i find the fps is so high that can't decode well.the fps is 119,so how can I reduce the fps to 25 when I decode the video stream?

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

• 16:49
  avcodec/vc1: fix out of bounds access of overlap filter - Jerome Borsboom git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vc1: fix out of bounds access of overlap filter Overlap filtering of the first row and first column must be guarded for out of bounds access of v->over_flags_plane. Signed-off-by: Jerome Borsboom <jerome.borsboomⓐcarpalis.nl> [DH] libavcodec/vc1_loopfilter.c

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

• 17:08
  Decode audio using libavcodec and play using libAO? - Ashika Umanga Umagiliya Newest 'ffmpeg' Questions - Stack Overflow
  I use following code snippet to decode audio files (tested with MP3,WAV,WMV). But when it plays the audio , it just gives static sounds and crashes time to time. Any hints on what i am doing wrong here ? #include #include #include #include extern "C" #include "libavutil/mathematics.h" #include "libavformat/avformat.h" #include "libswscale/swscale.h" #include void die(const char *msg) fprintf(stderr,"%s\\n",msg); exit(1); int main(int argc, char **argv) const char* input_filename=argv[1]; //avcodec_register_all(); av_register_all(); //av_ini AVFormatContext* (...)
• 17:07
  Suppress black margins on the sides of an animation - Clinton Winant Newest 'ffmpeg' Questions - Stack Overflow
  I need to make an animation out of a collection of jpeg images. The image size, as given by display, is 1200x900. I can control the size of the jpg images with convert, but not sure what a good size would be. I use the following ffmpeg call: ffmpeg -f image2 -i img%04d.jpg -r 24 sound.avi In spite of a long string of warnings like Past duration 0.879997 too large sound.avi is produced, however the animation includes black right and left margins (see attached screen shot of the first frame) that I need to suppress. I am under the impression that the 4x3 format of the jpg images is (...) --
• 16:45
  How to add field name of the hdlr MP4 atom via ffmpeg - Tom Smith Newest 'ffmpeg' Questions - Stack Overflow
  I'm using ffmpeg to make file with multi audio tracks. But nginx_vod_module dont know about tracks, but he can parse hdlr atom. Can someone help, how to add data in hdlr atom via ffmpeg?
• 16:35
  What is the difference between ffmpeg command with -codec and without -codec - Sat Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to calculate video frozen time, I created mp4 format file with 23seconds frozen. I am converting mp4 file into segment(.ts) file using following command ffmpeg -i Palivala.mp4 -codec copy -vbsf h264_mp4toannexb -map 0 palivaalaa.ts When i directly use video file (Palivala.mp4) or segment file(palivaalaa.ts) which generated from above command, I am getting the result as expected. i.e getting video frozen time as 23seconds. But when I use following command ffmpeg -i Palivala.mp4 -map 0 palivaalaa.ts I am able to see 1second frozen frames then after that 1 frame without frozen (...)
• 13:31
  ERROR: libmp3lame >= 3.98.3 not found - Prasad Revanaki Newest 'ffmpeg' Questions - Stack Overflow
  I am installing ffmpeg utility, but I am facing libmp3lame >= 3.98.3 not found not found error. I am able to find lame-3.99.5-1.el6.rf.x86_64.rpm and lame-libs-3.98.4-1.el6.nux.x86_64.rpm but installing these are not solving the problem. I am not able to find libmp3lame rpm to install. Can anyone help me here? [rootⓐsdp-dev-03:/opt/ffmpeg] # ./configure --prefix="$HOME/ffmpeg_build" --extra-cflags="-I$HOME/ffmpeg_build/include" --extra-ldflags="-L$HOME/ffmpeg_build/lib" --bindir="$HOME/bin" --extra-libs=-ldl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb (...)
• 12:43
  ffmpeg: How to dowmix from 2 channels 5.1 to 2 stereo streams - spiceemeup Newest 'ffmpeg' Questions - Stack Overflow
  I have a mov file with a video stream and several audio streams in two different languages. Here is the output of ffprobe: ffprobe version N-89525-gb178278 Copyright (c) 2007-2017 the FFmpeg developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3) configuration: --prefix=/home/ubuntu/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/ubuntu/ffmpeg_build/include --extra-ldflags=- L/home/ubuntu/ffmpeg_build/lib --extra-libs='-lpthread -lm' -- bindir=/home/ubuntu/bin --enable-gpl --enable-libass --enable-libtwolame -- enable-libfreetype --enable-libmp3lame --enable-libopus (...)
• 12:21
  error: ‘avcodec_send_packet’ was not declared in this scope - StarShine Newest 'ffmpeg' Questions - Stack Overflow
  The following snippet of ffmpeg-based code is building and working on Windows VC2012, VC20155, VC2017. With gcc on Ubuntu LTS 16.04 this is giving me issues, more specifically it does not seem to recognize avcodec_send_packet, avcodec_receive_frame and struct AVCodecParameters, and possibly more functions and structures that I'm not currently using. error: ‘AVCodecParameters’ was not declared in this scope error: ‘avcodec_send_packet’ was not declared in this scope error: ‘avcodec_receive_frame ’ was not declared in this scope The code snippet is: // the includes are actually in a (...) -- https://github.com/gerbera/gerbera/issues/52, https://github.com/gerbera/gerbera/commit/32efd463f138557c54535225d84136df95bab3dd#diff-af3b638bc2a3e6c650974192a53c7291, https://www.ffmpeg.org/doxygen/trunk/avcodec_8h_source.html
• 11:46
  Video overlay of several network inputs using ffmpeg - Hristo Ivanov Newest 'ffmpeg' Questions - Stack Overflow
  I am writing my first program using the FFMPEG libraries, unfortunately it's not a simple one. What I need is to: capture several network inputs(udp). demux the inputs. overlay the video streams. mix the audio(or some other logic). encode the resulting streams. remux the streams and write the result to file. For now I am playing with the ffmpeg.exe tool trying achieve this functionality. The command I have looks like this: .\\ffmpeg.exe -threads auto -y -i input0 -i input1 \\ -filter_complex "[0:v]scale=1920x1080[v0];[1:v]scale=480x270[v1];[v0][v1]overlay=1440:810[v2]" \\ -map [v2] -map (...)
• 11:34
  ffmpeg loop move left right video - Minh Newest 'ffmpeg' Questions - Stack Overflow
  I want to move a small video from left to right and then vice versa, continue until this video end, inside a larger video with ffmpeg See the picture below. Can someone please guide me with a code. Thank you very much. move video from left to right and vice versa:

Revisions : Memoization (SPIP) http://zone.spip.org/trac/spip-zone/log/_plugins_/memoization

• 11:15
  Revision 110013: version 1.9.1 : !empty il faut (jluc) - pierrekuhn82ⓐ… Revisions : Memoization (SPIP)
  version 1.9.1 : !empty il faut (jluc) -- Log

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

• 10:55
  How to convert from AV_PIX_FMT_VAAPI to AV_PIX_FMT_YUV420 using FFMPEG sws_scaler api? - Harshil Makwana Newest 'ffmpeg' Questions - Stack Overflow
  I am using below code to convert from VAAPI to YUV420 format. AVFrame* src, * dst; SwsContext* conversion_context_ = sws_getContext(videoDecoder_->width(), videoDecoder_->height(), AV_PIX_FMT_VAAPI,scaler_->getWidth(), scaler_->getHeight(), AV_PIX_FMT_YUV420P,(int)SWS_BICUBIC, nullptr, nullptr, nullptr); data, src->linesize, 0, (int)height, dst->data, dst->linesize); Can some one tell me why I am getting NULL value of SwsContext's pointer?
• 10:48
  C pointer casting to and from Go - nevernew Newest 'ffmpeg' Questions - Stack Overflow
  I'm writing an app for the windows platform using FFmpeg and it's golang wrapper goav, but I'm having trouble understanding how to pass the C pointers between C and Go. I've stripped out all the relevant parts of the C code, the wrapper and my code, shown below: C code - libavutil/frame.h #include typedef struct AVFrame #define AV_NUM_DATA_POINTERS 8 uint8_t *data[AV_NUM_DATA_POINTERS]; Go goav wrapper package avutil /* #cgo pkg-config: libavutil #include #include // C code I added: #include void SaveFrame(const char* location, uint8_t *data, int width, int height) FILE *pFile; int (...)
• 10:32
  Synchronizing RTSP signals with FFMPEG - Taits Newest 'ffmpeg' Questions - Stack Overflow
  I have achieved to merge two RTSP signals in one with FFMPEG but in the resulting stream, the first input has a delay of between 2 and 5 seconds with respect to the second. And it is always the first input that is delayed compared to the second. The two RTSP signals come from the same camera model, same configuration, same room ... However, if I put the same RTSP signal (either of the two) as input 1 and input 2, the same thing happens. Despite being the same signal, the first input is delayed compared to the second one. How could I get them synchronized? This is the command that I (...)
• 09:48
  Tile filter for libav/avconv - Mathjoh Newest 'ffmpeg' Questions - Stack Overflow
  Is there some way to use libav/avconv to duplicate the effect of the tile filter in FFMPEG? I'm trying to create a strip of images from left to right with one image for every ten seconds of video input. My plan is to first generate the images and then create the image strip. Preferably I want to use libav over ffmpeg. So far I have created this: avconv -i video.mp4 -vf scale=320:-1,fps=1/10 -q:v 6 img%03d.jpg which creates the images. But then I only know how create the image with ffmpeg using: ffmpeg -i img%03d.jpg -filter_complex tile=6x1 output.jpg So if anyone has any tips on how (...)

Revisions : Memoization (SPIP) http://zone.spip.org/trac/spip-zone/log/_plugins_/memoization

• 11:00
  Revision 110012: version 1.9.1 : une notice sur le gz qui sort quand on se delog. - pierrekuhn82ⓐ… Revisions : Memoization (SPIP)
  version 1.9.1 : une notice sur le gz qui sort quand on se delog. -- Log

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

• 10:17
  avformat/dashdec: fix compling warning "filename is deprecated" - Steven Liu git.videolan.org Git - ffmpeg.git/rss log
  avformat/dashdec: fix compling warning "filename is deprecated" Signed-off-by: Steven Liu <lqⓐchinaffmpeg.org> [DH] libavformat/dashdec.c

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

• 09:39
  Anomalie #4127: Bug de version initiale ? - b b Revisions : SPIP
  Ok, merci pour la proposition, voici ce que ça donne sous forme de patch/diff.
• 08:14
  Anomalie #4127: Bug de version initiale ? - Olivier GALLAND Revisions : SPIP
  Oulala ! J'étais sous ma douche et là... mon code est celui de dév ! Je fixe le préfixe à "spip" dans mon projet et j'ai spontanément mis "en dur" le nom de la table ! Donc, pour avoir un code générique il faut bien entendu modifier if($table=='spip_articles') par if($x['args']['objet']=='article') Je sais que vous l'auriez vu de toute façon, mais j'y pense alors je modifie :-) Toutes mes excuses ! Bonne journée.

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

• 08:33
  Rails 5 carrierwave-video-thumbnailer image creation error - Indrajeet Newest 'ffmpeg' Questions - Stack Overflow
  I am using carrierwave for uploading files to my rails5 app. this is my uploader -> image_uploader.rb class ImageUploader :video? do process thumbnail: [format: 'png', quality: 7, size: 640, strip: false, logger: Rails.logger] def full_filename for_file png_name for_file, version_name end process :set_content_type_png end def png_name for_file, version_name %Q#version_name_#for_file.chomp(File.extname(for_file)).png end def set_content_type_png(*args) Rails.logger.debug "#file.content_type" self.file.instance_variable_set(:ⓐcontent_type, "image/png") end end On a video upload, the (...)
• 07:33
  Seperate Landscape and Portrait Videos - NeMesiS Newest 'ffmpeg' Questions - Stack Overflow
  I got some 2000+ emulator preview videos that I'm putting together and I need to sort landscape and portrait videos into separate directories. Usually a quick google would solve my query but on this occasion I'm turning up short, maybe I'm not asking the right questions...

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

• 06:40
  fix memory leak of parsing dash MPD - guikunzhi git.videolan.org Git - ffmpeg.git/rss log
  fix memory leak of parsing dash MPD Signed-off-by: guikunzhi <guikunzhiⓐ163.com> [DH] libavformat/dashdec.c

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

• 06:19
  C pointer casting to and from Golang - nevernew Newest 'ffmpeg' Questions - Stack Overflow
  I'm writing an app for the windows platform using FFmpeg and it's golang wrapper goav, but I'm having trouble understanding how to pass the C pointers between C and Golang. I've stripped out all the relevant parts of the C code, the wrapper and my code, shown below: C code - libavutil/frame.h #include typedef struct AVFrame #define AV_NUM_DATA_POINTERS 8 uint8_t *data[AV_NUM_DATA_POINTERS]; Golang goav wrapper package avutil /* #cgo pkg-config: libavutil #include #include // C code I added: #include void SaveFrame(const char* location, uint8_t *data, int width, int height) FILE (...)
• 05:13
  How to generate m3u8 file and list of TS segment files using ffmpeg for wmv and avi video files - Sat Newest 'ffmpeg' Questions - Stack Overflow
  I am able to generate m3u8 and list of segment(.ts) files from mp4 video file using following ffmpeg command ffmpeg -i Bee_Free.mp4 -codec copy -vbsf h264_mp4toannexb -map 0 -f segment -segment_list free.m3u8 -segment_time 10 free%03d.ts I am using the same command to generate m3u8 and ts files from .wmv and .avi files command for .avi file ffmpeg -i PalivalaBadraVatakam.avi -codec copy -vbsf h264_mp4toannexb -map 0 -f segment -segment_list palivaala.m3u8 -segment_time 10 palivaala%03d.ts Error ffmpeg version N-89041-g91a565e20f Copyright (c) 2000-2017 the FFmpeg developers built with (...)
• 03:44
  Adding watermark to video - equallyhero Newest 'ffmpeg' Questions - Stack Overflow
  I am able to use the moviepy library to add a watermark to a section of video. However when I do this it is taking the watermarked segment, and creating a new file with it. I am trying to figure out if it is possible to simply splice in the edited part back into the original video, as moviepy is EXTREMELY slow writing to the disk, so the smaller the segment the better. I was thinking maybe using shutil? video = mp.VideoFileClip("C:\\\\Users\\\\admin\\\\Desktop\\\\Test\\\\demovideo.mp4").subclip(10,20) logo = (mp.ImageClip("C:\\\\Users\\\\admin\\\\Desktop\\\\Watermark\\\\watermarkpic.png") .set_duration(20) (...)
• 01:57
  How do I write to a file in Golang using a pointer to the C data? - nevernew Newest 'ffmpeg' Questions - Stack Overflow
  I'm writing an app for the windows platform using FFmpeg and it's golang wrapper goav, but I'm having trouble understanding how to use the C pointers to gain access to an array. I'm trying to write the frame data, pointed to by a uint8 pointer from C, to a .ppm file in golang. Once I have this done, for proof of concept that FFmpeg is doing what I expect it to, I want to set the frames to a texture in OpenGl to make a video player with cool transitions; any pointers to do that nice and efficiently would be so very helpful! I'm guessing I need to write some shader code to draw the ppm as (...) -- PPM file structure
• 01:53
  Encoding RGB to MPEG too Slow - tkellehe Newest 'ffmpeg' Questions - Stack Overflow
  Encoding RGB to MPEG too Slow Hello, I am using the ffmpeg C++ library to encode raw RGBA32 video data into MPEG. I first use sws_scale to get the raw RGBA32 video data into YUV420p. From there, I take that buffer and encode it using the avcodec_encode_video2 function. Everything works/looks fine (except I am not too excited about the loss in quality from the two jumps), but what is really bothering me is that it takes about 8ms for the first step and another 8ms for the next step (best case). And this is per frame! This means that with a FPS of 60 it takes at least the length of the (...)
• 00:49
  Merge two video side by side ffmpeg - Nouh LC Newest 'ffmpeg' Questions - Stack Overflow
  I´m working on project android with ffmpeg who can merge two videos side by side and i have a problem for example the first video has 20 seconds and the second has 35 seconds when i merge them i got video has 35 seconds everytime video got the large time but i want the small in above exmaple i want the output video has 20 seconds not 35. my shot "-i","firsth.mp4","-i","second.mp4","-filter_complex","[0:v]scale=480:640,setsar=1[l];[1:v]scale=480:640,setsar=1[r];[l][r]hstack","-c:v","libx264","-crf","23","-preset","veryfast (...)