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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 (...)

  • 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 (...)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

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  • How to extract raw YUV files from MPEG2 TS file ?

    11 septembre 2012, par Wang Wei

    I have a 1920x1080 mpeg2 .ts file. I need to get the raw YUV files for each frame.
    I tried ffmpeg but no luck. I end up with many small files. I expect each frame to be 1920x1080x1.5 = 3110400 Bytes.

    [root@dwarch frames]# ffmpeg -i video.ts -f image2 foo-%03d.yuv
    
FFmpeg version git-N-28713-g65daa94, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Mar 30 2011 09:20:16 with gcc 4.6.0
    
  configuration: --prefix=/usr --enable-gpl --enable-libmp3lame --enable-libvorbis --enable-libfaac --enable-libxvid --enable-libx264 --enable-libvpx --enable-libtheora --enable-postproc --enable-shared --enable-x11grab --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libschroedinger --enable-libopenjpeg --enable-version3 --enable-nonfree --enable-runtime-cpudetect --disable-debug
    
  libavutil    50. 40. 0 / 50. 40. 0
    
  libavcodec   52.116. 0 / 52.116. 0
    
  libavformat  52.104. 0 / 52.104. 0
    
  libavdevice  52.  4. 0 / 52.  4. 0
    
  libavfilter   1. 76. 0 /  1. 76. 0
    
  libswscale    0. 13. 0 /  0. 13. 0
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
Input #0, mpegts, from 'video.ts':
    
  Duration: 00:04:51.58, start: 0.333333, bitrate: 36041 kb/s
    
  Program 10 
    
    Stream #0.0[0x20]: Video: mpeg2video (Main), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 35000 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 47.95 tbc
    
    Stream #0.1[0x21]: Audio: ac3, 48000 Hz, 5.1, s16, 224 kb/s
    
Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting format 'yuvj420p'
    
[buffer @ 0x97148c0] w:1920 h:1080 pixfmt:yuv420p
    
[setdar @ 0x9714df0] a:16/9
    
[setdar @ 0x9714df0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'Parsed filter 0 setdar'
    
[scale @ 0x9711db0] w:1920 h:1080 fmt:yuv420p -> w:1920 h:1080 fmt:yuvj420p flags:0x4
    
[setdar @ 0x9714df0] w:1920 h:1080 -> dar:16/9 sar:1/1
    
Output #0, image2, to 'foo-%03d.yuv':
    
  Metadata:
    
    encoder         : Lavf52.104.0
    
    Stream #0.0: Video: mjpeg, yuvj420p, 1920x1080 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 23.98 tbc
    
Stream mapping:
    
  Stream #0.0 -> #0.0

  • What kind of stream GStreamer produce ?

    16 novembre 2014, par Max

    I use following 2 commands to stream video from Raspberry Pi

    RaPi

    raspivid -t 999999 -h 720 -w 1080 -fps 25 -hf -b 2000000 -o - | gst-launch-1.0 -v fdsrc ! h264parse !  rtph264pay config-interval=1 pt=96 ! gdppay ! tcpserversink host=$RA-IP-ADDR port=5000

    Linux Box

    gst-launch-1.0 -v tcpclientsrc host=$RA-IP-ADDR port=5000  ! gdpdepay !  rtph264depay ! avdec_h264 ! videoconvert ! autovideosink sync=false

    But what kind of stream is it ? Can I read it with OpenCV ? or convert with avconv|ffmpeg nc $RA-IP-ADDR 5000 | avconv ? or watch with VLC ?

  • Revision f780b16bb8 : [spatial svc] Use same golden frame for all temporal layers Overhead goes down

    12 septembre 2014, par Minghai Shang

    Changed Paths :
     Modify /vp9/encoder/vp9_firstpass.c


     Modify /vp9/encoder/vp9_svc_layercontext.c


     Modify /vp9/vp9_cx_iface.c



    [spatial svc] Use same golden frame for all temporal layers

    Overhead goes down from 8% to 3% for 1080 60p

    Change-Id : Idf3e5ca8712402a914a8cb79df17d3cdab63b163

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