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  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Le plugin : Podcasts.

    14 juillet 2010, par

    Le problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
    Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
    Types de fichiers supportés dans les flux
    Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...)

  • Les images

    15 mai 2013

Sur d’autres sites (4714)

  • Split a video to multiple chunks according to multiple starting and ending frame indices

    7 octobre 2015, par Jon

    Are there any tools (like FFmpeg or OpenCV) can split a video into multiple chunks according to some specific starting and ending frame indices ? For example, given (0,20),(21,33),(40,60)..., each tuple means a starting and ending frame indices pair for a chunk, and the neighbor chunks might not adjoin.

    Note that, the number of chunks might be large. For example, given a 1 hour video, there might be 1500 splits.

  • VP8 and WebM, not working in ffmpeg-php [migrated]

    6 octobre 2012, par Olaf Erlandsen

    I need a help with ffmpeg-php and Ffmpeg.

    Ffmpeg :

    ffmpeg version 1.0.git
    
built on Oct  6 2012 01:54:50 with gcc 4.4.6 (GCC) 20120305 (Red Hat 4.4.6-4)
    
configuration: --enable-gpl --enable-libmp3lame --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-version3
    
libavutil      51. 73.102 / 51. 73.102
    
libavcodec     54. 63.100 / 54. 63.100
    
libavformat    54. 29.105 / 54. 29.105
    
libavdevice    54.  3.100 / 54.  3.100
    
libavfilter     3. 19.102 /  3. 19.102
    
libswscale      2.  1.101 /  2.  1.101
    
libswresample   0. 16.100 /  0. 16.100
    
libpostproc    52.  1.100 / 52.  1.100

    Ffmpeg-PHP

    FFmpeg 0.6.5
    
libavutil     50.15. 1 / 50.15. 1
    
libavcodec    52.72. 2 / 52.72. 2
    
libavformat   52.64. 2 / 52.64. 2
    
libavdevice   52. 2. 0 / 52. 2. 0
    
libavfilter    1.19. 0 /  1.19. 0
    
libswscale     0.11. 0 /  0.11. 0
    
libpostproc   51. 2. 0 / 51. 2. 0

    FFMPEG-PHP Command :

    ffmpeg -y -i /f1ccd3a27d36270492ce660da358b436.mp4 -t 99 -f webm /f1ccd3a27d36270492ce660da358b436.webm

    FFMPEG(SSH) Command :

    ffmpeg -y -i /f1ccd3a27d36270492ce660da358b436.mp4 -t 99 -f webm /f1ccd3a27d36270492ce660da358b436.webm

    FFMPEG-PHP Output :

    FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers
    
  built on Jan 29 2012 17:52:15 with gcc 4.4.5 20110214 (Red Hat 4.4.5-6)
    
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable-libdc1394 --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
    
  libavutil     50.15. 1 / 50.15. 1
    
  libavcodec    52.72. 2 / 52.72. 2
    
  libavformat   52.64. 2 / 52.64. 2
    
  libavdevice   52. 2. 0 / 52. 2. 0
    
  libavfilter    1.19. 0 /  1.19. 0
    
  libswscale     0.11. 0 /  0.11. 0
    
  libpostproc   51. 2. 0 / 51. 2. 0
    
Seems stream 1 codec frame rate differs from container frame rate: 59.94 (2997/50) -> 29.97 (30000/1001)
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/f1ccd3a27d36270492ce660da358b436.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isomavc1mp42
    
  Duration: 00:04:16.32, start: 0.000000, bitrate: 650 kb/s
    
    Stream #0.0(und): Audio: aac, 44100 Hz, stereo, s16, 108 kb/s
    
    Stream #0.1(und): Video: h264, yuv420p, 480x360 [PAR 1:1 DAR 4:3], 539 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
    
Output #0, webm, to '/f1ccd3a27d36270492ce660da358b436.webm':
    
    Stream #0.0(und): Video: 0x0000, yuv420p, 480x360 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
    
    Stream #0.1(und): Audio: 0x0000, 44100 Hz, stereo, s16, 64 kb/s
    
Stream mapping:
    
  Stream #0.1 -> #0.0
    
  Stream #0.0 -> #0.1
    
Encoder (codec id 146) not found for output stream #0.0

    FFMPEG(SSH) Output :

    ffmpeg version 1.0.git Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Oct  6 2012 01:54:50 with gcc 4.4.6 (GCC) 20120305 (Red Hat 4.4.6-4)
    
  configuration: --enable-gpl --enable-libmp3lame --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-version3
    
  libavutil      51. 73.102 / 51. 73.102
    
  libavcodec     54. 63.100 / 54. 63.100
    
  libavformat    54. 29.105 / 54. 29.105
    
  libavdevice    54.  3.100 / 54.  3.100
    
  libavfilter     3. 19.102 /  3. 19.102
    
  libswscale      2.  1.101 /  2.  1.101
    
  libswresample   0. 16.100 /  0. 16.100
    
  libpostproc    52.  1.100 / 52.  1.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/f1ccd3a27d36270492ce660da358b436.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isomavc1mp42
    
    creation_time   : 2009-12-23 02:00:55
    
  Duration: 00:04:16.32, start: 0.000000, bitrate: 650 kb/s
    
    Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 108 kb/s
    
    Metadata:
    
      creation_time   : 2009-12-23 02:00:55
    
      handler_name    : (C) 2007 Google Inc. v08.13.2007.
    
    Stream #0:1(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x360 [SAR 1:1 DAR 4:3], 539 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
    
    Metadata:
    
      creation_time   : 2009-12-23 02:00:55
    
      handler_name    : (C) 2007 Google Inc. v08.13.2007.
    
[libvpx @ 0x2166e00] v1.1.0
    
Output #0, webm, to '/f1ccd3a27d36270492ce660da358b436.webm':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isomavc1mp42
    
    encoder         : Lavf54.29.105
    
    Stream #0:0(und): Video: vp8, yuv420p, 480x360 [SAR 1:1 DAR 4:3], q=-1--1, 200 kb/s, 1k tbn, 29.97 tbc
    
    Metadata:
    
      creation_time   : 2009-12-23 02:00:55
    
      handler_name    : (C) 2007 Google Inc. v08.13.2007.
    
    Stream #0:1(und): Audio: vorbis, 44100 Hz, stereo, flt
    
    Metadata:
    
      creation_time   : 2009-12-23 02:00:55
    
      handler_name    : (C) 2007 Google Inc. v08.13.2007.
    
Stream mapping:
    
  Stream #0:1 -> #0:0 (h264 -> libvpx)
    
  Stream #0:0 -> #0:1 (aac -> libvorbis)
    
Press [q] to stop, [?] for help
    
[libvorbis @ 0x2167340] Que input is backward in time
    
frame= 2968 fps= 61 q=0.0 Lsize=    4464kB time=00:01:39.03 bitrate= 369.3kbits/s
    
video:3068kB audio:1319kB subtitle:0 global headers:4kB muxing overhead 1.662821%

    Error :

    Encoder (codec id 146) not found for output stream #0.0

  • Evolution #3589 : Modification au pointage des résultats de recherche...

    12 novembre 2015, par b b

    Merci pour la proposition, j’ai corrigé la mise en forme des blocs de code. Peux-tu fournir un patch au format diff ? Un lien d’aide au cas où : https://ariejan.net/2007/07/03/how-to-create-and-apply-a-patch-with-subversion/

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