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Autres articles (16)

  • XMP PHP

    13 mai 2011, par

    Dixit Wikipedia, XMP signifie :
    Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
    Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
    XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    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
    Dans un premier temps on (...)

  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

Sur d’autres sites (5001)

  • Merge commit 'f44ec22e095c5ba00ffeadd891655c456e3dd014'

    28 septembre 2017, par James Almer
    Merge commit 'f44ec22e095c5ba00ffeadd891655c456e3dd014'

    * commit 'f44ec22e095c5ba00ffeadd891655c456e3dd014' :
    
  lavc : use av_cpu_max_align() instead of hardcoding alignment requirements
    

    This commit is a noop, see
    
https://ffmpeg.org/pipermail/ffmpeg-devel/2017-September/215834.html
    

    Merged-by : James Almer <jamrial@gmail.com>

  • Rematrix is needed between 10 channels and mono but there is not enough information to do it

    8 octobre 2017, par siriele

    I’ve been fighting for a number of days now trying to get FFmpeg working with combining several audio files at specific times into one file. So my idea was to generate silence up to the time i want to play a sound.Then merge the audio together with a filter. The below code works when I have five or less files, but seems to fall apart. What I’m trying

    ffmpeg \
    
    -i "tutorial_bass/C-maj/TutorialBassJR.wav" \
    
    -i "tutorial_drums/TutorialDrumsJR.wav" \
    
    -i "tutorial_drums/TutorialDrumsTU.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassTU.wav" \
    
    -i "tutorial_drums/TutorialDrumsTU.wav" \
    
    -i "tutorial_drums/TutorialDrumsTD.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassTD.wav" \
    
    -i "tutorial_drums/TutorialDrumsTD.wav" \
    
    -i "tutorial_drums/TutorialDrumsTR.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassTR.wav" \
    
    -i "tutorial_drums/TutorialDrumsTR.wav" \
    
    -i "tutorial_drums/TutorialDrumsWL.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassWL.wav" \
    
    -i "tutorial_drums/TutorialDrumsWL.wav" \
    
    -i "tutorial_drums/TutorialDrumsWU.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassWU.wav" \
    
    -i "tutorial_drums/TutorialDrumsWU.wav" \
    
    -i "tutorial_drums/TutorialDrumsWD.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassWD.wav" \
    
    -i "tutorial_drums/TutorialDrumsWD.wav" \
    
    -i "tutorial_drums/TutorialDrumsJL.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassJL.wav" \
    
    -i "tutorial_drums/TutorialDrumsJL.wav" \
    
    -i "tutorial_drums/TutorialDrumsJR.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassJR.wav" \
    
    -i "tutorial_drums/TutorialDrumsJR.wav" \
    
    -i "tutorial_drums/TutorialDrumsJU.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassJU.wav" \
    
    -i "tutorial_drums/TutorialDrumsJU.wav" \
    
    -i "tutorial_drums/TutorialDrumsJD.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassJD.wav" \
    
    -i "tutorial_drums/TutorialDrumsJD.wav" \
    
    -i "tutorial_drums/TutorialDrumsTL.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassTL.wav" \
    
    -i "tutorial_drums/TutorialDrumsTL.wav" \
    
    -i "tutorial_drums/TutorialDrumsTR.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassTR.wav" \
    
    -i "tutorial_drums/TutorialDrumsTR.wav" \
    
    -i "tutorial_drums/TutorialDrumsTU.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassTU.wav" \
    
    -i "tutorial_drums/TutorialDrumsTU.wav" \
    
    -i "tutorial_drums/TutorialDrumsTD.wav" \
    
    -i "tutorial_bass/C-maj/TutorialBassTD.wav" \
    
    -i "tutorial_drums/TutorialDrumsTD.wav" \
    
    -filter_complex "\
    
    aevalsrc=0:d=3.0  [d0];\
    
    aevalsrc=0:d=3.0  [d1];\
    
    aevalsrc=0:d=4.5  [d2];\
    
    aevalsrc=0:d=4.5  [d3];\
    
    aevalsrc=0:d=4.5  [d4];\
    
    aevalsrc=0:d=6.0  [d5];\
    
    aevalsrc=0:d=6.0  [d6];\
    
    aevalsrc=0:d=6.0  [d7];\
    
    aevalsrc=0:d=7.5  [d8];\
    
    aevalsrc=0:d=7.5  [d9];\
    
    aevalsrc=0:d=7.5  [d10];\
    
    aevalsrc=0:d=9.0  [d11];\
    
    aevalsrc=0:d=9.0  [d12];\
    
    aevalsrc=0:d=9.0  [d13];\
    
    aevalsrc=0:d=10.5 [d14];\
    
    aevalsrc=0:d=10.5 [d15];\
    
    aevalsrc=0:d=10.5 [d16];\
    
    aevalsrc=0:d=12.0 [d17];\
    
    aevalsrc=0:d=12.0 [d18];\
    
    aevalsrc=0:d=12.0 [d19];\
    
    aevalsrc=0:d=13.5 [d20];\
    
    aevalsrc=0:d=13.5 [d21];\
    
    aevalsrc=0:d=13.5 [d22];\
    
    aevalsrc=0:d=15.0 [d23];\
    
    aevalsrc=0:d=15.0 [d24];\
    
    aevalsrc=0:d=15.0 [d25];\
    
    aevalsrc=0:d=16.5 [d26];\
    
    aevalsrc=0:d=16.5 [d27];\
    
    aevalsrc=0:d=16.5 [d28];\
    
    aevalsrc=0:d=18.0 [d29];\
    
    aevalsrc=0:d=18.0 [d30];\
    
    aevalsrc=0:d=18.0 [d31];\
    
    aevalsrc=0:d=19.5 [d32];\
    
    aevalsrc=0:d=19.5 [d33];\
    
    aevalsrc=0:d=19.5 [d34];\
    
    aevalsrc=0:d=21.0 [d35];\
    
    aevalsrc=0:d=21.0 [d36];\
    
    aevalsrc=0:d=21.0 [d37];\
    
    aevalsrc=0:d=22.5 [d38];\
    
    aevalsrc=0:d=22.5 [d39];\
    
    aevalsrc=0:d=22.5 [d40];\
    
    aevalsrc=0:d=24.0 [d41];\
    
    aevalsrc=0:d=24.0 [d42];\
    
    aevalsrc=0:d=24.0 [d43];\
    
    [d0][0:a]concat=n=2:v=0:a=1   [a0];\
    
    [d1][1:a]concat=n=2:v=0:a=1   [a1];\
    
    [d2][2:a]concat=n=2:v=0:a=1   [a2];\
    
    [d3][3:a]concat=n=2:v=0:a=1   [a3];\
    
    [d4][4:a]concat=n=2:v=0:a=1   [a4];\
    
    [d5][5:a]concat=n=2:v=0:a=1   [a5];\
    
    [d6][6:a]concat=n=2:v=0:a=1   [a6];\
    
    [d7][7:a]concat=n=2:v=0:a=1   [a7];\
    
    [d8][8:a]concat=n=2:v=0:a=1   [a8];\
    
    [d9][9:a]concat=n=2:v=0:a=1   [a9];\
    
    [d10][10:a]concat=n=2:v=0:a=1 [a10];\
    
    [d11][11:a]concat=n=2:v=0:a=1 [a11];\
    
    [d12][12:a]concat=n=2:v=0:a=1 [a12];\
    
    [d13][13:a]concat=n=2:v=0:a=1 [a13];\
    
    [d14][14:a]concat=n=2:v=0:a=1 [a14];\
    
    [d15][15:a]concat=n=2:v=0:a=1 [a15];\
    
    [d16][16:a]concat=n=2:v=0:a=1 [a16];\
    
    [d17][17:a]concat=n=2:v=0:a=1 [a17];\
    
    [d18][18:a]concat=n=2:v=0:a=1 [a18];\
    
    [d19][19:a]concat=n=2:v=0:a=1 [a19];\
    
    [d20][20:a]concat=n=2:v=0:a=1 [a20];\
    
    [d21][21:a]concat=n=2:v=0:a=1 [a21];\
    
    [d22][22:a]concat=n=2:v=0:a=1 [a22];\
    
    [d23][23:a]concat=n=2:v=0:a=1 [a23];\
    
    [d24][24:a]concat=n=2:v=0:a=1 [a24];\
    
    [d25][25:a]concat=n=2:v=0:a=1 [a25];\
    
    [d26][26:a]concat=n=2:v=0:a=1 [a26];\
    
    [d27][27:a]concat=n=2:v=0:a=1 [a27];\
    
    [d28][28:a]concat=n=2:v=0:a=1 [a28];\
    
    [d29][29:a]concat=n=2:v=0:a=1 [a29];\
    
    [d30][30:a]concat=n=2:v=0:a=1 [a30];\
    
    [d31][31:a]concat=n=2:v=0:a=1 [a31];\
    
    [d32][32:a]concat=n=2:v=0:a=1 [a32];\
    
    [d33][33:a]concat=n=2:v=0:a=1 [a33];\
    
    [d34][34:a]concat=n=2:v=0:a=1 [a34];\
    
    [d35][35:a]concat=n=2:v=0:a=1 [a35];\
    
    [d36][36:a]concat=n=2:v=0:a=1 [a36];\
    
    [d37][37:a]concat=n=2:v=0:a=1 [a37];\
    
    [d38][38:a]concat=n=2:v=0:a=1 [a38];\
    
    [d39][39:a]concat=n=2:v=0:a=1 [a39];\
    
    [d40][40:a]concat=n=2:v=0:a=1 [a40];\
    
    [d41][41:a]concat=n=2:v=0:a=1 [a41];\
    
    [d42][42:a]concat=n=2:v=0:a=1 [a42];\
    
    [d43][43:a]concat=n=2:v=0:a=1 [a43];\
    
    [a0][a1][a2][a3][a4][a5][a6][a7][a8][a9][a10][a11][a12][a13][a14][a15][a16][a17][a18][a19]amix=inputs=20:duration=longest [a0-a19];\
    
    [a20][a21][a22][a23][a24][a25][a26][a27][a28][a29][a30][a31][a32][a33][a34][a35][a36][a37][a38][a39]amix=inputs=20:duration=longest [a20-a39];\
    
    [a40][a41][a42][a43]amix=inputs=4:duration=longest [a40-a43];
    
    [a0-a19][a20-a39][a40-a43]amix=inputs=3:duration=longest"  -codec:a libmp3lame output.mp3

    When I run this command I get :

    ffmpeg version 3.3.4 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with Apple LLVM version 8.1.0 (clang-802.0.42)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.3.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-frei0r --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/2.2.0/include/openjpeg-2.2 --enable-nonfree --enable-vda
    
  libavutil      55. 58.100 / 55. 58.100
    
  libavcodec     57. 89.100 / 57. 89.100
    
  libavformat    57. 71.100 / 57. 71.100
    
  libavdevice    57.  6.100 / 57.  6.100
    
  libavfilter     6. 82.100 /  6. 82.100
    
  libavresample   3.  5.  0 /  3.  5.  0
    
  libswscale      4.  6.100 /  4.  6.100
    
  libswresample   2.  7.100 /  2.  7.100
    
  libpostproc    54.  5.100 / 54.  5.100
    
Guessed Channel Layout for Input Stream #0.0 : stereo
    
Input #0, wav, from 'tutorial_bass/C-maj/TutorialBassJR.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #0:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #1.0 : stereo
    
Input #1, wav, from 'tutorial_drums/TutorialDrumsJR.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #1:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #2.0 : stereo
    
Input #2, wav, from 'tutorial_drums/TutorialDrumsTU.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #2:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #3.0 : stereo
    
Input #3, wav, from 'tutorial_bass/C-maj/TutorialBassTU.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #3:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #4.0 : stereo
    
Input #4, wav, from 'tutorial_drums/TutorialDrumsTU.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #4:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Input #5, wav, from 'tutorial_drums/TutorialDrumsTD.wav':
    
  Duration: 00:00:04.50, bitrate: 14112 kb/s
    
    Stream #5:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, 10 channels, flt, 14112 kb/s
    
Guessed Channel Layout for Input Stream #6.0 : stereo
    
Input #6, wav, from 'tutorial_bass/C-maj/TutorialBassTD.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #6:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Input #7, wav, from 'tutorial_drums/TutorialDrumsTD.wav':
    
  Duration: 00:00:04.50, bitrate: 14112 kb/s
    
    Stream #7:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, 10 channels, flt, 14112 kb/s
    
Guessed Channel Layout for Input Stream #8.0 : stereo
    
Input #8, wav, from 'tutorial_drums/TutorialDrumsTR.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #8:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #9.0 : stereo
    
Input #9, wav, from 'tutorial_bass/C-maj/TutorialBassTR.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #9:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #10.0 : stereo
    
Input #10, wav, from 'tutorial_drums/TutorialDrumsTR.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #10:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #11.0 : stereo
    
Input #11, wav, from 'tutorial_drums/TutorialDrumsWL.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #11:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #12.0 : stereo
    
Input #12, wav, from 'tutorial_bass/C-maj/TutorialBassWL.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #12:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #13.0 : stereo
    
Input #13, wav, from 'tutorial_drums/TutorialDrumsWL.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #13:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #14.0 : stereo
    
Input #14, wav, from 'tutorial_drums/TutorialDrumsWU.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #14:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #15.0 : stereo
    
Input #15, wav, from 'tutorial_bass/C-maj/TutorialBassWU.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #15:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #16.0 : stereo
    
Input #16, wav, from 'tutorial_drums/TutorialDrumsWU.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #16:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #17.0 : stereo
    
Input #17, wav, from 'tutorial_drums/TutorialDrumsWD.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #17:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #18.0 : stereo
    
Input #18, wav, from 'tutorial_bass/C-maj/TutorialBassWD.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #18:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #19.0 : stereo
    
Input #19, wav, from 'tutorial_drums/TutorialDrumsWD.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #19:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #20.0 : stereo
    
Input #20, wav, from 'tutorial_drums/TutorialDrumsJL.wav':
    
  Duration: 00:00:00.75, bitrate: 33869 kb/s
    
    Stream #20:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #21.0 : stereo
    
Input #21, wav, from 'tutorial_bass/C-maj/TutorialBassJL.wav':
    
  Duration: 00:00:01.51, bitrate: 2822 kb/s
    
    Stream #21:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #22.0 : stereo
    
Input #22, wav, from 'tutorial_drums/TutorialDrumsJL.wav':
    
  Duration: 00:00:00.75, bitrate: 33869 kb/s
    
    Stream #22:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #23.0 : stereo
    
Input #23, wav, from 'tutorial_drums/TutorialDrumsJR.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #23:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #24.0 : stereo
    
Input #24, wav, from 'tutorial_bass/C-maj/TutorialBassJR.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #24:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #25.0 : stereo
    
Input #25, wav, from 'tutorial_drums/TutorialDrumsJR.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #25:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #26.0 : stereo
    
Input #26, wav, from 'tutorial_drums/TutorialDrumsJU.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #26:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #27.0 : stereo
    
Input #27, wav, from 'tutorial_bass/C-maj/TutorialBassJU.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #27:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #28.0 : stereo
    
Input #28, wav, from 'tutorial_drums/TutorialDrumsJU.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #28:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #29.0 : stereo
    
Input #29, wav, from 'tutorial_drums/TutorialDrumsJD.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #29:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #30.0 : stereo
    
Input #30, wav, from 'tutorial_bass/C-maj/TutorialBassJD.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #30:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #31.0 : stereo
    
Input #31, wav, from 'tutorial_drums/TutorialDrumsJD.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #31:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #32.0 : stereo
    
Input #32, wav, from 'tutorial_drums/TutorialDrumsTL.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #32:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #33.0 : stereo
    
Input #33, wav, from 'tutorial_bass/C-maj/TutorialBassTL.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #33:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #34.0 : stereo
    
Input #34, wav, from 'tutorial_drums/TutorialDrumsTL.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #34:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #35.0 : stereo
    
Input #35, wav, from 'tutorial_drums/TutorialDrumsTR.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #35:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #36.0 : stereo
    
Input #36, wav, from 'tutorial_bass/C-maj/TutorialBassTR.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #36:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #37.0 : stereo
    
Input #37, wav, from 'tutorial_drums/TutorialDrumsTR.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #37:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #38.0 : stereo
    
Input #38, wav, from 'tutorial_drums/TutorialDrumsTU.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #38:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #39.0 : stereo
    
Input #39, wav, from 'tutorial_bass/C-maj/TutorialBassTU.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #39:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Guessed Channel Layout for Input Stream #40.0 : stereo
    
Input #40, wav, from 'tutorial_drums/TutorialDrumsTU.wav':
    
  Duration: 00:00:00.75, bitrate: 2822 kb/s
    
    Stream #40:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Input #41, wav, from 'tutorial_drums/TutorialDrumsTD.wav':
    
  Duration: 00:00:04.50, bitrate: 14112 kb/s
    
    Stream #41:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, 10 channels, flt, 14112 kb/s
    
Guessed Channel Layout for Input Stream #42.0 : stereo
    
Input #42, wav, from 'tutorial_bass/C-maj/TutorialBassTD.wav':
    
  Duration: 00:00:01.50, bitrate: 2822 kb/s
    
    Stream #42:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
    
Input #43, wav, from 'tutorial_drums/TutorialDrumsTD.wav':
    
  Duration: 00:00:04.50, bitrate: 14112 kb/s
    
    Stream #43:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, 10 channels, flt, 14112 kb/s
    
File 'output.mp3' already exists. Overwrite ? [y/N] y
    
Stream mapping:
    
  Stream #0:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #1:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #2:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #3:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #4:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #5:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #6:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #7:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #8:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #9:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #10:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #11:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #12:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #13:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #14:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #15:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #16:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #17:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #18:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #19:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #20:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #21:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #22:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #23:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #24:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #25:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #26:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #27:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #28:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #29:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #30:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #31:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #32:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #33:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #34:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #35:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #36:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #37:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #38:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #39:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #40:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #41:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #42:0 (pcm_f32le) -> concat:in1:a0
    
  Stream #43:0 (pcm_f32le) -> concat:in1:a0
    
  amix -> Stream #0:0 (libmp3lame)
    
Press [q] to stop, [?] for help
    
[auto_resampler_5 @ 0x7fdc19641e00] [SWR @ 0x7fdc1c286e00] Rematrix is needed between 10 channels and mono but there is not enough information to do it
    
[auto_resampler_5 @ 0x7fdc19641e00] Failed to configure output pad on auto_resampler_5
    
Error reinitializing filters!
    
Failed to inject frame into filter network: Invalid argument
    
Error while processing the decoded data for stream #43:0
    
Conversion failed!

    Any ideas what I’m doing wrong or other approaches I could take to do this ?

  • ffmpeg : single input file contains multiple streams, how to save each discreetly ?

    9 octobre 2017, par pinhead

    I have been given a .dvs file which was recovered from some proprietary multi-camera security surveillance system. ffprobe returned errors at first but when I switched the extension to .avc I was able to extract video metadata (output below). ffmpeg was able to read this file and export a long video file that essentially jump-cuts between the different cameras in an erratic pattern, like a crazy music video ! Is it possible to use ffmpeg to identify the different parallel video streams and output each camera source as its own file ?

    ffprobe -probesize 1000000000 output :

    ffprobe version 3.2.4 Copyright (c) 2007-2017 the FFmpeg developers
    
  built with Apple LLVM version 7.0.2 (clang-700.1.81)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
    
  libavutil      55. 34.101 / 55. 34.101
    
  libavcodec     57. 64.101 / 57. 64.101
    
  libavformat    57. 56.101 / 57. 56.101
    
  libavdevice    57.  1.100 / 57.  1.100
    
  libavfilter     6. 65.100 /  6. 65.100
    
  libavresample   3.  1.  0 /  3.  1.  0
    
  libswscale      4.  2.100 /  4.  2.100
    
  libswresample   2.  3.100 /  2.  3.100
    
  libpostproc    54.  1.100 / 54.  1.100
    
[h264 @ 0x7fbd7380da00] Format h264 detected only with low score of 1, misdetection possible!
    
[h264 @ 0x7fbd75000600] non-existing PPS 7 referenced
    
[h264 @ 0x7fbd75000600] Invalid NAL unit 0, skipping.
    
    Last message repeated 2 times
    
[h264 @ 0x7fbd75000600] non-existing PPS 7 referenced
    
[h264 @ 0x7fbd75000600] decode_slice_header error
    
[h264 @ 0x7fbd75000600] no frame!
    
Input #0, h264, from 'FILENAME-OBFISCATED.avc':
    
  Duration: N/A, bitrate: N/A
    
    Stream #0:0: Video: h264 (Baseline), yuv420p(progressive), 704x480, 25 fps, 25 tbr, 1200k tbn, 50 tbc

    Here’s some output of ffmpeg while converting. It looks to me like the different streams may even have different resolutions :

    Output #0, mov, to 'FILENAME-OBFISCATED.mov':
    
  Metadata:
    
    encoder         : Lavf57.56.101
    
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 704x480, q=-1--1, 25 fps, 12800 tbn, 25 tbc
    
    Metadata:
    
      encoder         : Lavc57.64.101 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
[h264 @ 0x7fb0d4031e00] Invalid NAL unit 0, skipping.
    
    Last message repeated 2 times
    
[h264 @ 0x7fb0d4031e00] non-existing PPS 7 referenced
    
[h264 @ 0x7fb0d4031e00] decode_slice_header error
    
[h264 @ 0x7fb0d4031e00] no frame!
    
Error while decoding stream #0:0: Invalid data found when processing inputed=   0x    
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
[h264 @ 0x7fb0d4031e00] negative number of zero coeffs at 1 0itrate=1973.5kbits/s speed=0.159x    
    
[h264 @ 0x7fb0d4031e00] error while decoding MB 1 0
    
[h264 @ 0x7fb0d4031e00] concealing 4800 DC, 4800 AC, 4800 MV errors in P frame
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p75x    
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
[h264 @ 0x7fb0d40b3000] slice type 32 too large at 79911
    
[h264 @ 0x7fb0d40b3000] decode_slice_header error
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p07x    
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p92x    
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p59x    
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
...
    
[h264 @ 0x7fb0d4036200] data partitioning is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
    
[h264 @ 0x7fb0d4036200] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420pdrop=0 speed=10.4x    
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
Input stream #0:0 frame changed from size:704x480 fmt:yuv420p to size:1280x960 fmt:yuv420p
    
Input stream #0:0 frame changed from size:1280x960 fmt:yuv420p to size:704x480 fmt:yuv420p
    
frame=203980 fps=261 q=-1.0 Lsize= 1886254kB time=02:15:59.12 bitrate=1893.9kbits/s dup=80 drop=0 speed=10.4x    
    
video:1884523kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.091876%
    
[libx264 @ 0x7fb0d580d800] frame I:16284 Avg QP:21.33  size: 76147
    
[libx264 @ 0x7fb0d580d800] frame P:117556 Avg QP:26.20  size:  4066
    
[libx264 @ 0x7fb0d580d800] frame B:70140 Avg QP:30.19  size:  3019
    
[libx264 @ 0x7fb0d580d800] consecutive B-frames: 50.2%  9.9%  6.2% 33.7%
    
[libx264 @ 0x7fb0d580d800] mb I  I16..4:  8.6% 25.2% 66.2%
    
[libx264 @ 0x7fb0d580d800] mb P  I16..4:  0.4%  1.5%  1.1%  P16..4: 14.2%  6.3%  4.4%  0.0%  0.0%    skip:72.1%
    
[libx264 @ 0x7fb0d580d800] mb B  I16..4:  0.2%  0.5%  0.5%  B16..8: 22.6%  7.6%  2.9%  direct: 2.5%  skip:63.2%  L0:45.2% L1:38.7% BI:16.1%
    
[libx264 @ 0x7fb0d580d800] 8x8 transform intra:30.2% inter:45.3%
    
[libx264 @ 0x7fb0d580d800] coded y,uvDC,uvAC intra: 88.8% 65.6% 41.5% inter: 10.4% 3.8% 0.4%
    
[libx264 @ 0x7fb0d580d800] i16 v,h,dc,p: 11% 11% 40% 39%
    
[libx264 @ 0x7fb0d580d800] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 19% 20%  6%  6%  6%  8%  7% 10%
    
[libx264 @ 0x7fb0d580d800] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 18% 13%  7%  7%  8%  8%  8%  9%
    
[libx264 @ 0x7fb0d580d800] i8c dc,h,v,p: 51% 20% 23%  6%
    
[libx264 @ 0x7fb0d580d800] Weighted P-Frames: Y:3.1% UV:0.8%
    
[libx264 @ 0x7fb0d580d800] ref P L0: 79.0% 12.6%  6.3%  2.0%  0.2%
    
[libx264 @ 0x7fb0d580d800] ref B L0: 93.6%  5.5%  0.9%
    
[libx264 @ 0x7fb0d580d800] ref B L1: 97.7%  2.3%
    
[libx264 @ 0x7fb0d580d800] kb/s:1892.10

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