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    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
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  • Création définitive du canal

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Sur d’autres sites (3986)

  • FFmpeg : Concatenating two video files causing static output

    15 octobre 2015, par roy

    I have two .avi video files that I am trying to concat together.

    I have a files.txt that has in it :

    file './1_tmp.avi'
    
file './2_tmp.avi'

    FFprobe for 1_tmp.avi gives me :

    ffprobe version 2.7.2 Copyright (c) 2007-2015 the FFmpeg developers
    
  built with gcc 4.8.5 (Gentoo 4.8.5 p1.3, pie-0.6.2)
    
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-g++ --ar=x86_64-pc-linux-gnu-ar --optflags=' ' --disable-static --enable-avfilter --enable-avresample --disable-stripping --enable-version3 --disable-indev=v4l2 --disable-outdev=v4l2 --disable-indev=oss --disable-indev=jack --disable-outdev=oss --disable-outdev=sdl --enable-nonfree --enable-bzlib --disable-runtime-cpudetect --disable-debug --disable-doc --disable-gnutls --enable-gpl --enable-hardcoded-tables --enable-iconv --disable-lzma --enable-network --disable-openssl --enable-postproc --disable-libsmbclient --disable-ffplay --disable-vaapi --disable-vdpau --enable-xlib --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --enable-zlib --disable-libcdio --disable-libiec61883 --disable-libdc1394 --disable-libcaca --disable-openal --disable-opengl --disable-libv4l2 --disable-libpulse --disable-libopencore-amrwb --disable-libopencore-amrnb --enable-libfdk-aac --disable-libopenjpeg --disable-libbluray --disable-libcelt --disable-libgme --disable-libgsm --disable-libmodplug --disable-libopus --disable-libquvi --disable-librtmp --disable-libssh --disable-libschroedinger --disable-libspeex --disable-libvorbis --enable-libvpx --disable-libzvbi --disable-libbs2b --disable-libflite --disable-frei0r --disable-libfribidi --disable-fontconfig --disable-ladspa --disable-libass --disable-libfreetype --disable-libsoxr --enable-pthreads --enable-libvo-aacenc --disable-libvo-amrwbenc --enable-libmp3lame --disable-libaacplus --disable-libfaac --disable-libtheora --disable-libtwolame --disable-libwavpack --disable-libwebp --enable-libx264 --disable-libx265 --disable-libxvid --enable-x11grab --disable-amd3dnow --disable-amd3dnowext --disable-fma4 --disable-xop --cpu=core-avx-i
    
  libavutil      54. 27.100 / 54. 27.100
    
  libavcodec     56. 41.100 / 56. 41.100
    
  libavformat    56. 36.100 / 56. 36.100
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 16.101 /  5. 16.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.100 /  1.  2.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, avi, from '1_tmp.avi':
    
  Metadata:
    
    encoder         : Lavf56.36.100
    
  Duration: 00:00:19.00, start: 0.000000, bitrate: 179869 kb/s
    
    Stream #0:0: Video: huffyuv (HFYU / 0x55594648), bgr0, 1024x768, 180390 kb/s, 18 fps, 18 tbr, 18 tbn, 18 tbc

    and for 2_tmp.avi :

    ffprobe version 2.7.2 Copyright (c) 2007-2015 the FFmpeg developers
    
  built with gcc 4.8.5 (Gentoo 4.8.5 p1.3, pie-0.6.2)
    
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-g++ --ar=x86_64-pc-linux-gnu-ar --optflags=' ' --disable-static --enable-avfilter --enable-avresample --disable-stripping --enable-version3 --disable-indev=v4l2 --disable-outdev=v4l2 --disable-indev=oss --disable-indev=jack --disable-outdev=oss --disable-outdev=sdl --enable-nonfree --enable-bzlib --disable-runtime-cpudetect --disable-debug --disable-doc --disable-gnutls --enable-gpl --enable-hardcoded-tables --enable-iconv --disable-lzma --enable-network --disable-openssl --enable-postproc --disable-libsmbclient --disable-ffplay --disable-vaapi --disable-vdpau --enable-xlib --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --enable-zlib --disable-libcdio --disable-libiec61883 --disable-libdc1394 --disable-libcaca --disable-openal --disable-opengl --disable-libv4l2 --disable-libpulse --disable-libopencore-amrwb --disable-libopencore-amrnb --enable-libfdk-aac --disable-libopenjpeg --disable-libbluray --disable-libcelt --disable-libgme --disable-libgsm --disable-libmodplug --disable-libopus --disable-libquvi --disable-librtmp --disable-libssh --disable-libschroedinger --disable-libspeex --disable-libvorbis --enable-libvpx --disable-libzvbi --disable-libbs2b --disable-libflite --disable-frei0r --disable-libfribidi --disable-fontconfig --disable-ladspa --disable-libass --disable-libfreetype --disable-libsoxr --enable-pthreads --enable-libvo-aacenc --disable-libvo-amrwbenc --enable-libmp3lame --disable-libaacplus --disable-libfaac --disable-libtheora --disable-libtwolame --disable-libwavpack --disable-libwebp --enable-libx264 --disable-libx265 --disable-libxvid --enable-x11grab --disable-amd3dnow --disable-amd3dnowext --disable-fma4 --disable-xop --cpu=core-avx-i
    
  libavutil      54. 27.100 / 54. 27.100
    
  libavcodec     56. 41.100 / 56. 41.100
    
  libavformat    56. 36.100 / 56. 36.100
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 16.101 /  5. 16.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.100 /  1.  2.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, avi, from '2_tmp.avi':
    
  Metadata:
    
    encoder         : Lavf56.36.100
    
  Duration: 00:00:56.00, start: 0.000000, bitrate: 160560 kb/s
    
    Stream #0:0: Video: huffyuv (HFYU / 0x55594648), bgr0, 1024x768, 160714 kb/s, 18 fps, 18 tbr, 18 tbn, 18 tbc

    There are only video streams, they look to be the same codecs/fps

    I am using this command to concatenate them :

    ffmpeg -f concat -i files.txt -c:v copy -y output.avi

    I don’t get any output from the terminal and it outputs a file.

    The file opens and the content in 1_tmp.avi plays fine, at the same quality, but when it gets to the point in the video where 2_tmp.avi should be, it’s pixelated static all the way through (see image below).

    static screen for second file after concatentation - mama **did not** say there would be days like this.

    If I use a command like :

    ffmpeg -i 1_tmp.avi -i 2_tmp.avi -filter_complex "[0:0] [1:0] concat=n=2:v=1 [v]" -map "[v]" output.avi

    I do get full output of both videos merged together, but it is dropped to an mpeg codec and the quality loss is noticeably prominent.

  • FFmpeg : Concatenating two huffyuv codec files in .avi container causing first video to be fine but other video is just static

    15 octobre 2015, par roy

    I have two .avi video files that I am trying to concat together.

    I have a files.txt that has in it :

    file './1_tmp.avi'
    
file './2_tmp.avi'

    FFprobe for 1_tmp.avi gives me :

    ffprobe version 2.7.2 Copyright (c) 2007-2015 the FFmpeg developers
    
  built with gcc 4.8.5 (Gentoo 4.8.5 p1.3, pie-0.6.2)
    
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-g++ --ar=x86_64-pc-linux-gnu-ar --optflags=' ' --disable-static --enable-avfilter --enable-avresample --disable-stripping --enable-version3 --disable-indev=v4l2 --disable-outdev=v4l2 --disable-indev=oss --disable-indev=jack --disable-outdev=oss --disable-outdev=sdl --enable-nonfree --enable-bzlib --disable-runtime-cpudetect --disable-debug --disable-doc --disable-gnutls --enable-gpl --enable-hardcoded-tables --enable-iconv --disable-lzma --enable-network --disable-openssl --enable-postproc --disable-libsmbclient --disable-ffplay --disable-vaapi --disable-vdpau --enable-xlib --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --enable-zlib --disable-libcdio --disable-libiec61883 --disable-libdc1394 --disable-libcaca --disable-openal --disable-opengl --disable-libv4l2 --disable-libpulse --disable-libopencore-amrwb --disable-libopencore-amrnb --enable-libfdk-aac --disable-libopenjpeg --disable-libbluray --disable-libcelt --disable-libgme --disable-libgsm --disable-libmodplug --disable-libopus --disable-libquvi --disable-librtmp --disable-libssh --disable-libschroedinger --disable-libspeex --disable-libvorbis --enable-libvpx --disable-libzvbi --disable-libbs2b --disable-libflite --disable-frei0r --disable-libfribidi --disable-fontconfig --disable-ladspa --disable-libass --disable-libfreetype --disable-libsoxr --enable-pthreads --enable-libvo-aacenc --disable-libvo-amrwbenc --enable-libmp3lame --disable-libaacplus --disable-libfaac --disable-libtheora --disable-libtwolame --disable-libwavpack --disable-libwebp --enable-libx264 --disable-libx265 --disable-libxvid --enable-x11grab --disable-amd3dnow --disable-amd3dnowext --disable-fma4 --disable-xop --cpu=core-avx-i
    
  libavutil      54. 27.100 / 54. 27.100
    
  libavcodec     56. 41.100 / 56. 41.100
    
  libavformat    56. 36.100 / 56. 36.100
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 16.101 /  5. 16.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.100 /  1.  2.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, avi, from '1_tmp.avi':
    
  Metadata:
    
    encoder         : Lavf56.36.100
    
  Duration: 00:00:19.00, start: 0.000000, bitrate: 179869 kb/s
    
    Stream #0:0: Video: huffyuv (HFYU / 0x55594648), bgr0, 1024x768, 180390 kb/s, 18 fps, 18 tbr, 18 tbn, 18 tbc

    and for 2_tmp.avi :

    ffprobe version 2.7.2 Copyright (c) 2007-2015 the FFmpeg developers
    
  built with gcc 4.8.5 (Gentoo 4.8.5 p1.3, pie-0.6.2)
    
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-g++ --ar=x86_64-pc-linux-gnu-ar --optflags=' ' --disable-static --enable-avfilter --enable-avresample --disable-stripping --enable-version3 --disable-indev=v4l2 --disable-outdev=v4l2 --disable-indev=oss --disable-indev=jack --disable-outdev=oss --disable-outdev=sdl --enable-nonfree --enable-bzlib --disable-runtime-cpudetect --disable-debug --disable-doc --disable-gnutls --enable-gpl --enable-hardcoded-tables --enable-iconv --disable-lzma --enable-network --disable-openssl --enable-postproc --disable-libsmbclient --disable-ffplay --disable-vaapi --disable-vdpau --enable-xlib --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --enable-zlib --disable-libcdio --disable-libiec61883 --disable-libdc1394 --disable-libcaca --disable-openal --disable-opengl --disable-libv4l2 --disable-libpulse --disable-libopencore-amrwb --disable-libopencore-amrnb --enable-libfdk-aac --disable-libopenjpeg --disable-libbluray --disable-libcelt --disable-libgme --disable-libgsm --disable-libmodplug --disable-libopus --disable-libquvi --disable-librtmp --disable-libssh --disable-libschroedinger --disable-libspeex --disable-libvorbis --enable-libvpx --disable-libzvbi --disable-libbs2b --disable-libflite --disable-frei0r --disable-libfribidi --disable-fontconfig --disable-ladspa --disable-libass --disable-libfreetype --disable-libsoxr --enable-pthreads --enable-libvo-aacenc --disable-libvo-amrwbenc --enable-libmp3lame --disable-libaacplus --disable-libfaac --disable-libtheora --disable-libtwolame --disable-libwavpack --disable-libwebp --enable-libx264 --disable-libx265 --disable-libxvid --enable-x11grab --disable-amd3dnow --disable-amd3dnowext --disable-fma4 --disable-xop --cpu=core-avx-i
    
  libavutil      54. 27.100 / 54. 27.100
    
  libavcodec     56. 41.100 / 56. 41.100
    
  libavformat    56. 36.100 / 56. 36.100
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 16.101 /  5. 16.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.100 /  1.  2.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, avi, from '2_tmp.avi':
    
  Metadata:
    
    encoder         : Lavf56.36.100
    
  Duration: 00:00:56.00, start: 0.000000, bitrate: 160560 kb/s
    
    Stream #0:0: Video: huffyuv (HFYU / 0x55594648), bgr0, 1024x768, 160714 kb/s, 18 fps, 18 tbr, 18 tbn, 18 tbc

    There are only video streams, they look to be the same codecs/fps

    I am using this command to concatenate them :

    ffmpeg -f concat -i files.txt -c:v copy -y output.avi

    I don’t get any output from the terminal and it outputs a file.

    The file opens and the content in 1_tmp.avi plays fine, at the same quality, but when it gets to the point in the video where 2_tmp.avi should be, it’s pixelated static all the way through (see image below).

    static screen for second file after concatentation - mama **did not** say there would be days like this.

    If I use a command like :

    ffmpeg -i 1_tmp.avi -i 2_tmp.avi -filter_complex "[0:0] [1:0] concat=n=2:v=1 [v]" -map "[v]" output.avi

    I do get full output of both videos merged together, but it is dropped to an mpeg codec and the quality loss is noticeably prominent.

  • ffmpeg audio output in iOS

    19 septembre 2015, par user3249421

    Good day,

    I have own project which using iFrameExtraktor (https://github.com/lajos/iFrameExtractor). I modified initWithVideo method to :

    -(id)initWithVideo:(NSString *)moviePath imgView: (UIImageView *)imgView {
    
if (!(self=[super init])) return nil;
    

    
AVCodec         *pCodec;
    
AVCodec         *aCodec;
    

    
// Register all formats and codecs
    
avcodec_register_all();
    
av_register_all();
    

    
imageView = imgView;
    

    
// Open video file
    
if(avformat_open_input(&pFormatCtx, [moviePath cStringUsingEncoding:NSASCIIStringEncoding], NULL, NULL) != 0) {
    
    av_log(NULL, AV_LOG_ERROR, "Couldn't open file\n");
    
    goto initError;
    
}
    

    
// Retrieve stream information
    
if(avformat_find_stream_info(pFormatCtx,NULL) < 0) {
    
    av_log(NULL, AV_LOG_ERROR, "Couldn't find stream information\n");
    
    goto initError;
    
}
    

    
// Find the first video stream
    
if ((videoStream =  av_find_best_stream(pFormatCtx, AVMEDIA_TYPE_VIDEO, -1, -1, &pCodec, 0)) < 0) {
    
    av_log(NULL, AV_LOG_ERROR, "Cannot find a video stream in the input file\n");
    
    goto initError;
    
}
    

    
if((audioStream = av_find_best_stream(pFormatCtx, AVMEDIA_TYPE_AUDIO, -1, -1, &aCodec, 0)) < 0 ){
    
    av_log(NULL, AV_LOG_ERROR, "Cannot find a audio stream in the input file\n");
    
    goto initError;
    
}
    

    
// Get a pointer to the codec context for the video stream
    
pCodecCtx = pFormatCtx->streams[videoStream]->codec;
    
aCodecCtx = pFormatCtx->streams[audioStream]->codec;
    

    
// Find the decoder for the video stream
    
pCodec = avcodec_find_decoder(pCodecCtx->codec_id);
    
if(pCodec == NULL) {
    
    av_log(NULL, AV_LOG_ERROR, "Unsupported video codec!\n");
    
    goto initError;
    
}
    

    
aCodec = avcodec_find_decoder(aCodecCtx->codec_id);
    
if(aCodec == NULL) {
    
    av_log(NULL, AV_LOG_ERROR, "Unsupported audio codec!\n");
    
    goto initError;
    
}
    

    
// Open codec
    
if(avcodec_open2(pCodecCtx, pCodec, NULL) < 0) {
    
    av_log(NULL, AV_LOG_ERROR, "Cannot open video decoder\n");
    
    goto initError;
    
}
    

    
if(avcodec_open2(aCodecCtx, aCodec, NULL) < 0){
    
    av_log(NULL, AV_LOG_ERROR, "Cannot open audio decoder\n");
    
    goto initError;
    
}
    

    
// Allocate video frame
    
pFrame = av_frame_alloc();
    

    
outputWidth = pCodecCtx->width;
    
self.outputHeight = pCodecCtx->height;
    

    
lastFrameTime = -1;
    
[self seekTime:0.0];
    

    
return self;
    

    
initError:
    
    //[self release];
    
    return nil;
    
}

    Video rendering works fine, but I don’t know how play audio to device output.

    Thanks for any tips.

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