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  • 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 (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

Sur d’autres sites (6355)

  • Retrieving User Uploaded Video Specifications

    21 octobre 2012, par SBerg413

    The web app I'm working on allows a user to upload videos. The videos must meet specific criteria as outlined by our client (format, frame size, frame rate, etc) or they will be rejected. I found the ffmpeg-php library from some googling. However, I noticed that it doesn't appear to be actively maintained.

    1. What's the current standard library for accessing video data via PHP ?
    2. If this data is retrieved from the video's metadata, can this information be trusted to be accurate ?

  • ffmpeg trying to remove the first few seconds of video

    21 octobre 2011, par zeroasterisk

    I'm trying to remove a few seconds off the front of a video stream (audio already excluded), and I'm getting strange results : I would think that for every second I increase -ss by, the resulting file would be a second shorter... that doesn't seem to be the case.

    original     ==> 01:04:52.84
    
-ss 19       ==> 01:04:42.84 (diff = 10) [command history shown below]
    
-ss 20       ==> 01:04:32.84 (diff = 20) [command history shown below]
    
-ss 21       ==> 01:04:32.84 (diff = 20)
    
-ss 25       ==> 01:04:32.84 (diff = 20)
    
-ss 0:0:25.0 ==> 01:04:32.84 (diff = 20)
    
-ss 0:0:25.5 ==> 01:04:32.84 (diff = 20) [command history shown below]

    Command : ffmpeg -ss # -i temp.mp4 -y -vcodec copy  temp_croppedFromStart.mp4

    Here's the command history for 19 & 20

    # ffmpeg -ss 19 -i temp.mp4 -y -vcodec copy  temp_croppedFromStart.mp4; ffmpeg -i temp.mp4 2>&1 | grep Duration; ffmpeg -i temp_croppedFromStart.mp4 2>&1 | grep Duration
    
ffmpeg version N-31809-g9acffed, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Aug 10 2011 21:25:11 with gcc 4.4.5
    
  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
    
  libavutil    51. 11. 1 / 51. 11. 1
    
  libavcodec   53. 10. 0 / 53. 10. 0
    
  libavformat  53.  6. 0 / 53.  6. 0
    
  libavdevice  53.  2. 0 / 53.  2. 0
    
  libavfilter   2. 28. 1 /  2. 28. 1
    
  libswscale    2.  0. 0 /  2.  0. 0
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf53.6.0
    
  Duration: 01:04:52.84, start: 0.000000, bitrate: 553 kb/s
    
    Stream #0.0(und): Video: h264 (Constrained Baseline), yuv420p, 960x640, 552 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
Output #0, mp4, to 'temp_croppedFromStart.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf53.6.0
    
    Stream #0.0(und): Video: libx264, yuv420p, 960x640, q=2-31, 552 kb/s, 25 tbn, 25 tbc
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
Press [q] to stop, [?] for help
    
frame=97071 fps=42523 q=-1.0 Lsize=  262684kB time=01:04:33.84 bitrate= 555.5kbits/s
    
video:261923kB audio:0kB global headers:0kB muxing overhead 0.290418%
    
  Duration: 01:04:52.84, start: 0.000000, bitrate: 553 kb/s
    
  Duration: 01:04:42.84, start: 0.000000, bitrate: 554 kb/s
    

    

    
# ffmpeg -ss 20 -i temp.mp4 -y -vcodec copy  temp_croppedFromStart.mp4; ffmpeg -i temp.mp4 2>&1 | grep Duration; ffmpeg -i temp_croppedFromStart.mp4 2>&1 | grep Duration
    
ffmpeg version N-31809-g9acffed, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Aug 10 2011 21:25:11 with gcc 4.4.5
    
  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
    
  libavutil    51. 11. 1 / 51. 11. 1
    
  libavcodec   53. 10. 0 / 53. 10. 0
    
  libavformat  53.  6. 0 / 53.  6. 0
    
  libavdevice  53.  2. 0 / 53.  2. 0
    
  libavfilter   2. 28. 1 /  2. 28. 1
    
  libswscale    2.  0. 0 /  2.  0. 0
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf53.6.0
    
  Duration: 01:04:52.84, start: 0.000000, bitrate: 553 kb/s
    
    Stream #0.0(und): Video: h264 (Constrained Baseline), yuv420p, 960x640, 552 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
Output #0, mp4, to 'temp_croppedFromStart.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf53.6.0
    
    Stream #0.0(und): Video: libx264, yuv420p, 960x640, q=2-31, 552 kb/s, 25 tbn, 25 tbc
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
Press [q] to stop, [?] for help
    
frame=96821 fps=47168 q=-1.0 Lsize=  262003kB time=01:04:32.84 bitrate= 554.2kbits/s
    
video:261244kB audio:0kB global headers:0kB muxing overhead 0.290410%
    
  Duration: 01:04:52.84, start: 0.000000, bitrate: 553 kb/s
    
  Duration: 01:04:32.84, start: 0.000000, bitrate: 554 kb/s
    

    
# ffmpeg -ss 0:0:25.5 -i temp.mp4 -y -vcodec copy  temp_croppedFromStart.mp4; ffmpeg -i temp.mp4 2>&1 | grep Duration; ffmpeg -i temp_croppedFromStart.mp4 2>&1 | grep Duration
    
ffmpeg version N-31809-g9acffed, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Aug 10 2011 21:25:11 with gcc 4.4.5
    
  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
    
  libavutil    51. 11. 1 / 51. 11. 1
    
  libavcodec   53. 10. 0 / 53. 10. 0
    
  libavformat  53.  6. 0 / 53.  6. 0
    
  libavdevice  53.  2. 0 / 53.  2. 0
    
  libavfilter   2. 28. 1 /  2. 28. 1
    
  libswscale    2.  0. 0 /  2.  0. 0
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf53.6.0
    
  Duration: 01:04:52.84, start: 0.000000, bitrate: 553 kb/s
    
    Stream #0.0(und): Video: h264 (Constrained Baseline), yuv420p, 960x640, 552 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
Output #0, mp4, to 'temp_croppedFromStart.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf53.6.0
    
    Stream #0.0(und): Video: libx264, yuv420p, 960x640, q=2-31, 552 kb/s, 25 tbn, 25 tbc
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
Press [q] to stop, [?] for help
    
frame=96821 fps=45920 q=-1.0 Lsize=  262003kB time=01:04:27.32 bitrate= 555.0kbits/s
    
video:261244kB audio:0kB global headers:0kB muxing overhead 0.290424%
    
  Duration: 01:04:52.84, start: 0.000000, bitrate: 553 kb/s
    
  Duration: 01:04:32.84, start: 0.000000, bitrate: 554 kb/s

  • Video Codecs 101

    15 novembre 2011, par noreply@blogger.com (Anonymous)

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