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  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • 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 (4044)

  • Revision 6322 : Par défaut on a des controles sur la vidéo

    10 février 2012, par kent1 — Log

    Par défaut on a des controles sur la vidéo

  • Split video file from 'n' th frame to end of video in Linux

    17 novembre 2011, par Skkard

    I need to split a video file using frames as the measure, e.g. I need to save the part of the video from the 34th frame to the end of the video in Linux( specifically fedora 16, xfce, 64bit ).

    I've tried using ffmpeg, using the '-vframes' option to specify how many frames to save, but it starts from the beginning, so is not that useful. How can I start from a certain frame in between the video and save the video from there to the end in a new file.

    I know about the '-ss' option, but while converting number of frames to the specified time, there might be errors( or so I believe. Please correct me if I'm wrong ) due to rounding.

    Could you please suggest a method ? Thanks !

  • Missing audio and problems playing FLV video converted from 720p .mov file with FFMPEG

    18 novembre 2011, par undefined

    I have some .mov video files recorded from a JVC GC-FM1 HD video camera in 720p mode. I have FFMPEG running on a Linux box that I upload files to for encoding into FLV format. The video appears to be encoding ok, but there is no audio in the resulting FLV file. Also, when I play it back in Flash Player, in a browser or on Adobe Media Player, the video pauses at the start. It appears that Adobe Media Player waits for the progress bar to reach the end of the video before starting the playback - i.e. the video will load, the picture pauses, the progress bar seeks to the end as if the video were playing, then when it reaches the end the video picture starts. There is no audio on the video. I am noticing this in the video player I have built with Flash 8 using an FLVPlayback component and attached seekBar. The seek bar will start moving as if the video is playing but the picture remains paused.

    Here are some outputs from my FFMPEG log and the command I am using to encode the video.

    My FFMPEG command called from PHP :

    $cmd = 'ffmpeg -i ' . $sourcelocation.$filename.".".$fileext . '  -ab 96k -b 700k \
    
-ar 44100 -s ' . $target['width'] . 'x' . $target['height'] . ' -ac 1 \
    
-acodec libfaac ' . $destlocation.$filename.$ext_trans .' 2>&1';

    The output from my error log :

    FFmpeg version UNKNOWN, Copyright (c) 2000-2010 Fabrice Bellard, et al.
    
built on Jan 22 2010 11:31:03 with gcc 4.1.2 20070925 (Red Hat 4.1.2-33)
    
configuration: --prefix=/usr --enable-static --enable-shared --enable-gpl \
    
--enable-nonfree --enable-postproc --enable-avfilter --enable-avfilter-lavf \
    
--enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm \
    
--enable-libmp3lame --enable-libvorbis --enable-libx264
    
libavutil     50. 7. 0 / 50. 7. 0
    
libavcodec    52.48. 0 / 52.48. 0
    
libavformat   52.47. 0 / 52.47. 0
    
libavdevice   52. 2. 0 / 52. 2. 0
    
libavfilter    1.17. 0 /  1.17. 0
    
libswscale     0. 9. 0 /  0. 9. 0
    
libpostproc   51. 2. 0 / 51. 2. 0
    

    
Seems stream 0 codec frame rate differs from container frame rate: 119.88 (120000/1001) -> 59.94 (60000/1001)
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'uploads/video/60974_v1.mov':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 0
    
    compatible_brands: qt  
    
    comment         : JVC GC-FM1
    
    comment-eng     : JVC GC-FM1
    
  Duration: 00:00:30.41, start: 0.000000, bitrate: 4158 kb/s
    
    Stream #0.0(eng): Video: h264, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 4017 kb/s, 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc
    
    Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, s16, 128 kb/s
    
Output #0, rawvideo, to 'uploads/video/60974_v1.jpg':
    
    Stream #0.0(eng): Video: mjpeg, yuvj420p, 320x240 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 90k tbn, 59.94 tbc
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
Press [q] to stop encoding
    
[h264 @ 0x8e67930]B picture before any references, skipping
    
[h264 @ 0x8e67930]decode_slice_header error
    
[h264 @ 0x8e67930]no frame!
    
Error while decoding stream #0.0
    
[h264 @ 0x8e67930]B picture before any references, skipping
    
[h264 @ 0x8e67930]decode_slice_header error
    
[h264 @ 0x8e67930]no frame!
    
Error while decoding stream #0.0
    
frame=    1 fps=  0 q=3.8 Lsize=      15kB time=0.02 bitrate=7271.4kbits/s dup=482 drop=0    
    
video:15kB audio:0kB global headers:0kB muxing overhead 0.000000%

    Which are the important errors here ?

    B picture before any references, skipping ?
    decode_slice_header error ?
    no frame ?
    or
    Seems stream 0 codec frame rate differs from container frame rate : 119.88 (120000/1001) -> 59.94 (60000/1001)

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