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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • 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 (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

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  • Segment duration variation is higher than the +/- 50% allowed by DASH-IF

    23 mars 2016, par timhysniu

    I am implement a proof of concept page with video player that uses DASH. I am having a difficult time getting the video right and I am not sure whether this is an encoding issue or MP4Box issue.

    Since I am working on Ubuntu I had to change a few parameters for ffmpeg, but according to what I read this should be fine :

    ~/ffmpeg/ffmpeg -c:a aac -ar 44100 -ac 1 -codec:v libx264 \
    
  -profile:v baseline -level 13 -b:v 2000k video_transcoded.mp4 -i video.mp4

    Then to create the MPD I am running this :

    MP4Box -dash 10000 -dash-profile live \
    
  -segment-name video_transcoded video_transcoded.mp4

    I am getting this response at the end, which might be why no player will play my video :

      [DASH] two languages in adaptation set: und will be kept eng will be ignored
    
  DASHing file video_transcoded.mp4
    
  [DASH]: Segment duration variation is higher than the  50% allowed by DASH-IF (min 1.044, max 10.448) - please reconsider encoding

    Here is the output of ffmpeg :

        ffmpeg version N-53477-g689211d-static http://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2016 the FFmpeg developers
    
      built with gcc 5.3.1 (Debian 5.3.1-10) 20160224
    
      configuration: --enable-gpl --enable-version3 --disable-shared --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --enable-libass --enable-gnutls --enable-libvidstab --enable-libsoxr --enable-frei0r --enable-libfribidi --disable-indev=sndio --disable-outdev=sndio --enable-librtmp --enable-libmfx --cc=gcc
    
      libavutil      55. 19.100 / 55. 19.100
    
      libavcodec     57. 28.100 / 57. 28.100
    
      libavformat    57. 28.100 / 57. 28.100
    
      libavdevice    57.  0.101 / 57.  0.101
    
      libavfilter     6. 39.102 /  6. 39.102
    
      libswscale      4.  0.100 /  4.  0.100
    
      libswresample   2.  0.101 /  2.  0.101
    
      libpostproc    54.  0.100 / 54.  0.100
    
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'gladiator.mp4':
    
      Metadata:
    
        major_brand     : isom
    
        minor_version   : 1
    
        compatible_brands: isomavc1
    
        creation_time   : 2013-02-12 19:14:56
    
      Duration: 02:50:56.98, start: 0.000000, bitrate: 923 kb/s
    
        Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x544 [SAR 1:1 DAR 40:17], 823 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
    
        Metadata:
    
          creation_time   : 2013-02-12 19:14:56
    
          handler_name    : 2000.Extended.Remastered.720p.BluRay.x264-HDEVO.mkv.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283
    
        Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 95 kb/s (default)
    
        Metadata:
    
          creation_time   : 2013-02-12 15:32:26
    
          handler_name    : Sound Media Handler
    
    [libx264 @ 0xaf12920] using SAR=1/1
    
    [libx264 @ 0xaf12920] frame MB size (80x34) > level limit (396)
    
    [libx264 @ 0xaf12920] DPB size (3 frames, 8160 mbs) > level limit (0 frames, 2376 mbs)
    
    [libx264 @ 0xaf12920] MB rate (65214) > level limit (11880)
    
    [libx264 @ 0xaf12920] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
    [libx264 @ 0xaf12920] profile Constrained Baseline, level 1.3
    
    [libx264 @ 0xaf12920] 264 - core 148 r236 a01e339 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=0 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=1 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=2000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
    Output #0, mp4, to 'gladiator2.mp4':
    
      Metadata:
    
        major_brand     : isom
    
        minor_version   : 1
    
        compatible_brands: isomavc1
    
        encoder         : Lavf57.28.100
    
        Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x544 [SAR 1:1 DAR 40:17], q=-1--1, 2000 kb/s, 23.98 fps, 24k tbn, 23.98 tbc (default)
    
        Metadata:
    
          creation_time   : 2013-02-12 19:14:56
    
          handler_name    : 2000.Extended.Remastered.720p.BluRay.x264-HDEVO.mkv.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283
    
          encoder         : Lavc57.28.100 libx264
    
        Side data:
    
          cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 0 vbv_delay: -1
    
        Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, mono, fltp, 69 kb/s (default)
    
        Metadata:
    
          creation_time   : 2013-02-12 15:32:26
    
          handler_name    : Sound Media Handler
    
          encoder         : Lavc57.28.100 aac
    
    Stream mapping:
    
      Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
      Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    
    Press [q] to stop, [?] for help

    After transcoding is completed I get this :

    frame=  132 fps= 15 q=25.0 Lsize=    1112kB time=00:00:05.31 bitrate=1713.0kbits/s speed=0.603x    
    
video:1062kB audio:45kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.414602%
    
[libx264 @ 0xab63de0] frame I:1     Avg QP:21.29  size:121187
    
[libx264 @ 0xab63de0] frame P:131   Avg QP:23.40  size:  7372
    
[libx264 @ 0xab63de0] mb I  I16..4:  9.2%  0.0% 90.8%
    
[libx264 @ 0xab63de0] mb P  I16..4:  0.9%  0.0%  0.3%  P16..4: 37.2%  7.0%  1.8%  0.0%  0.0%    skip:52.7%
    
[libx264 @ 0xab63de0] final ratefactor: 21.58
    
[libx264 @ 0xab63de0] coded y,uvDC,uvAC intra: 48.8% 72.2% 30.7% inter: 8.9% 14.6% 0.8%
    
[libx264 @ 0xab63de0] i16 v,h,dc,p: 28% 33% 18% 21%
    
[libx264 @ 0xab63de0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 16% 15%  8%  7%  8%  6% 12%  6%
    
[libx264 @ 0xab63de0] i8c dc,h,v,p: 52% 21% 19%  8%
    
[libx264 @ 0xab63de0] ref P L0: 92.9%  5.2%  1.8%
    
[libx264 @ 0xab63de0] kb/s:1646.80
    
[aac @ 0xab64c40] Qavg: 112.650

    What can I do to make this work ?

  • avformat/dashenc : Enable dash output to work when the output isn’t a local file

    6 janvier 2016, par Raymond Hilseth
    avformat/dashenc : Enable dash output to work when the output isn’t a local file

    Use avpriv_io_move instead of ff_rename to support more than only
    
the file protocol.
    

    Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavformat/dashenc.c

  • Revert "lavf/dashenc : Write media trailers when DASH trailer is written."

    3 décembre 2018, par Karthick J
    Revert "lavf/dashenc : Write media trailers when DASH trailer is written."

    This reverts commit e444b3b184f36e3c97bb3489822f6b05ccb848a8.
    
Causing build error due to rebasing. Sorry for about it.
    • [DH] libavformat/dashenc.c

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