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  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Submit enhancements and plugins

    13 avril 2011

    If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
    You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone.

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

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  • Video recoding with ffmpeg

    8 novembre 2011, par Aleks G

    I asked in another question (http://stackoverflow.com/questions/8012494/sorry-this-video-cannot-be-played-streaming-mp4-to-android/8012874#8012874) about video playback in android using VideoView. Apparently, the problem there is due to the way my video is encoded, as another video (512Kb mp4 off the web) plays correctly using my code. As videos are uploaded by my end users to the web site, I don't have any control of the videos themselves, however I do have control over re-coding these. I re-code them using ffmpeg to bring them to a standard MP4 (H.264+AAC) format and scale them to the same size (320x240).

    Here's the ffmpeg info of a video that would not play :

    sh-3.2$ ffmpeg -i video.bad.mp4
    
FFmpeg version SVN-r25679-snapshot, Copyright (c) 2000-2010 the FFmpeg developers
    
  built on Nov  5 2010 09:34:37 with gcc 4.3.2
    
  configuration: --prefix=/usr --enable-shared --enable-libmp3lame --enable-gpl --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-libgsm --enable-x11grab --enable-libx264 --enable-libtheora --extra-cflags=-Wall --enable-swscale --enable-libdc1394 --enable-nonfree --disable-mmx --disable-stripping --enable-avfilter --disable-altivec --disable-armv5te --disable-armv6 --disable-vis --enable-nonfree --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3
    
  libavutil     50.32. 6 / 50.32. 6
    
  libavcore      0.12. 0 /  0.12. 0
    
  libavcodec    52.94. 3 / 52.94. 3
    
  libavformat   52.84. 0 / 52.84. 0
    
  libavdevice   52. 2. 2 / 52. 2. 2
    
  libavfilter    1.56. 0 /  1.56. 0
    
  libswscale     0.12. 0 /  0.12. 0
    
  libpostproc   51. 2. 0 / 51. 2. 0
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.bad.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf52.84.0
    
  Duration: 00:00:45.93, start: 0.000000, bitrate: 591 kb/s
    
    Stream #0.0(und): Video: h264, yuv420p, 320x240 [PAR 1:1 DAR 4:3], 535 kb/s, 15 fps, 15 tbr, 15 tbn, 30 tbc
    
    Stream #0.1(und): Audio: aac, 48000 Hz, stereo, s16, 51 kb/s

    And here's the ffmpeg info of a video that plays correctly :

    sh-3.2$ ffmpeg -i video.mp4
    
FFmpeg version SVN-r25679-snapshot, Copyright (c) 2000-2010 the FFmpeg developers
    
  built on Nov  5 2010 09:34:37 with gcc 4.3.2
    
  configuration: --prefix=/usr --enable-shared --enable-libmp3lame --enable-gpl --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-libgsm --enable-x11grab --enable-libx264 --enable-libtheora --extra-cflags=-Wall --enable-swscale --enable-libdc1394 --enable-nonfree --disable-mmx --disable-stripping --enable-avfilter --disable-altivec --disable-armv5te --disable-armv6 --disable-vis --enable-nonfree --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3
    
  libavutil     50.32. 6 / 50.32. 6
    
  libavcore      0.12. 0 /  0.12. 0
    
  libavcodec    52.94. 3 / 52.94. 3
    
  libavformat   52.84. 0 / 52.84. 0
    
  libavdevice   52. 2. 2 / 52. 2. 2
    
  libavfilter    1.56. 0 /  1.56. 0
    
  libswscale     0.12. 0 /  0.12. 0
    
  libpostproc   51. 2. 0 / 51. 2. 0
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: mp41
    
    title           : crazytown - http://www.archive.org/details/Cartoon-Crazytown
    
    encoder         : Lavf51.10.0
    
  Duration: 00:07:50.40, start: 0.000000, bitrate: 578 kb/s
    
    Stream #0.0(und): Video: h264, yuv420p, 320x240, 510 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
    
    Stream #0.1(und): Audio: aac, 48000 Hz, stereo, s16, 63 kb/s

    I have two questions here, actually. First, which of the details in my "bad" video does android not like ? And, second, what parameters should I use with ffmpeg to recode my videos ? As present I use this :

    ffmpeg -i $input_video_file -y -s 320x240 -vcodec libx264 -vpre medium -acodec libfaac -b 510K -ar 48000 -aspect 4:3 $tmpfile.mp4
    
qt-faststart $tmpfile.mp4 $output_video_file.mp4

    But this produces a video that's not playable on android. Any help is greatly appreciated.

  • php library for ffmpeg video processing ?

    11 octobre 2012, par Prashant

    I have installed ffmpeg on my server.

    Now I am looking for a php library which can perform ffmpeg functionality, like retrieving video information, converting it to FLV or in any other format, and streaming video.

    Please help, Thanks !

  • mfxdec : Separate mxf_essence_container_uls for audio and video.

    10 décembre 2011, par Carl Eugen Hoyos

    mfxdec : Separate mxf_essence_container_uls for audio and video.

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