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Autres articles (39)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (4913)

  • avcodec/cabac : Check initial cabac decoder state

    27 novembre 2015, par Michael Niedermayer
    avcodec/cabac : Check initial cabac decoder state

    Fixes integer overflows
    
Fixes : 1430e9c43fae47a24c179c7c54f94918/signal_sigsegv_421427_2340_591e9810c7b09efe501ad84638c9e9f8.264
    

    Found-by : Mateusz "j00ru" Jurczyk and Gynvael Coldwind
    
Found-by : xiedingbao (Ticket4727)
    
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavcodec/cabac.c
    • [DH] libavcodec/cabac.h
    • [DH] libavcodec/cabac_functions.h
    • [DH] libavcodec/h264_cabac.c
    • [DH] libavcodec/h264_slice.c

  • Audio gets removed while converting mp4 to intermediate state for concatenation using ffmpeg

    6 décembre 2017, par pranav mutharia

    When I use the following command -

    ffmpeg -i input.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate1.ts

    the audio from the given input mp4 file gets automatically removed.
    I am running this from a python sub-process.
    I want to retain the audio from the original file.

    The mp4 is an output of the following mencoder command

    mencoder -ss start-time -endpos end-time -oac pcm -ovc copy original.mp4 -o input.mp4

    The log is as follows :

    `

    Input #0, avi, from '/home/pranav/Desktop/video/video_module_05-06-2017/temp/072147_1mp4test1.mp4':
    
  Metadata:
    
    encoder         : MEncoder 1.2.1 (Debian), built with gcc-5.3.1
    
  Duration: 00:00:03.04, start: 0.000000, bitrate: 1440 kb/s
    
    Stream #0:0: Video: h264 (High) (H264 / 0x34363248), yuv420p(tv), 640x268 [SAR 1:1 DAR 160:67], 32 kb/s, 24 fps, 24 tbr, 24 tbn, 48 tbc
    
    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s
    
Output #0, mpegts, to '/home/pranav/Desktop/video/video_module_05-06-2017/temp/072147_1mp4intermediate1.ts':
    
  Metadata:
    
    encoder         : Lavf56.40.101
    
    Stream #0:0: Video: h264 (H264 / 0x34363248), yuv420p, 640x268 [SAR 1:1 DAR 160:67], q=2-31, 32 kb/s, 24 fps, 24 tbr, 90k tbn, 24 tbc
    
    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, 1411 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
frame=   73 fps=0.0 q=-1.0 Lsize=     599kB time=00:00:03.04 bitrate=1612.5kbits/s    
    
video:12kB audio:517kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 13.229376%
    
ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
    
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
    
  libavutil      54. 31.100 / 54. 31.100
    
  libavcodec     56. 60.100 / 56. 60.100
    
  libavformat    56. 40.101 / 56. 40.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 40.101 /  5. 40.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.101 /  1.  2.101
    
  libpostproc    53.  3.100 / 53.  3.100
    
Guessed Channel Layout for  Input Stream #0.1 : stereo

    `

  • How to configure linking so that compiled binary finds libraries ?

    5 octobre 2015, par Jean Jordaan

    I’m compiling ffmpeg. Configuration :

     --prefix=/home/john/zope/engage/zeocluster/ffmpeg/parts/ffmpeg-build
     --extra-cflags='-I/home/john/zope/engage/zeocluster/ffmpeg/parts/x264-build/include
     -I/home/john/zope/engage/zeocluster/ffmpeg/parts/ogg-build/include
     -I/home/john/zope/engage/zeocluster/ffmpeg/parts/theora-build/include
     -I/home/john/zope/engage/zeocluster/ffmpeg/parts/lame-build/include
     -I/home/john/zope/engage/zeocluster/ffmpeg/parts/faac-build/include
     -I/home/john/zope/engage/zeocluster/ffmpeg/parts/faad-build/include
     -I/home/john/zope/engage/zeocluster/ffmpeg/parts/vpx-build/include
     -I/home/john/zope/engage/zeocluster/ffmpeg/parts/vorbis-build/include
     -I/home/john/zope/engage/zeocluster/ffmpeg/parts/ffmpeg-build/include'
     --extra-ldflags='-L/home/john/zope/engage/zeocluster/ffmpeg/parts/x264-build/lib
     -L/home/john/zope/engage/zeocluster/ffmpeg/parts/ogg-build/lib
     -L/home/john/zope/engage/zeocluster/ffmpeg/parts/theora-build/lib
     -L/home/john/zope/engage/zeocluster/ffmpeg/parts/lame-build/lib
     -L/home/john/zope/engage/zeocluster/ffmpeg/parts/faac-build/lib
     -L/home/john/zope/engage/zeocluster/ffmpeg/parts/faad-build/lib
     -L/home/john/zope/engage/zeocluster/ffmpeg/parts/vpx-build/lib
     -L/home/john/zope/engage/zeocluster/ffmpeg/parts/vorbis-build/lib
     -L/home/john/zope/engage/zeocluster/ffmpeg/parts/ffmpeg-build/lib'

    The build completes fine, and LD_LIBRARY_PATH=./parts/ffmpeg-build/lib:./parts/x264-build/lib ./parts/ffmpeg-build/bin/ffmpeg runs the binary.

    Why is that LD_LIBRARY_PATH necessary ? Didn’t I already tell the compiler to link against these libraries ?

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