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    25 avril 2011, par

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    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.
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    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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  • FFMPEG Incompatible sprop-parameter-sets with libstagefright on Android 4.0 for H264

    7 août 2012, par user1582384

    I am having an issue with the RTSP SDP generated by FFMPEG in Android.
    I have the FFMPEG 0.11.1 compiled with NDK and running on Android. I use the FFSERVER to stream an mp4 file locally to the MediaPlayer.

    Here is the generated SDP description :

    08-07 14:04:04.034 : V/rtsp_server(20161) : o=- 0 0 IN IP4 127.0.0.1

    08-07 14:04:04.034 : V/rtsp_server(20161) : s=No Title

    08-07 14:04:04.034 : V/rtsp_server(20161) : c=IN IP4 0.0.0.0

    08-07 14:04:04.034 : V/rtsp_server(20161) : t=0 0

    08-07 14:04:04.034 : V/rtsp_server(20161) : a=tool:libavformat 54.6.100

    08-07 14:04:04.034 : V/rtsp_server(20161) : m=video 0 RTP/AVP 96

    08-07 14:04:04.034 : V/rtsp_server(20161) : b=AS:312

    08-07 14:04:04.034 : V/rtsp_server(20161) : a=x-dimensions:512,384

    08-07 14:04:04.034 : V/rtsp_server(20161) : a=rtpmap:96 H264/90000

    08-07 14:04:04.034 : V/rtsp_server(20161) : a=fmtp:96
    packetization-mode=0 ;profile-level-id=640015 ;sprop-parameter-sets=J2QAH62ECSZuIzSQgSTNxGaSECSZuIzSQgSTNxGaSECSZuIzSQgSTNxGaSEFWuvX1+T+vyfXrrVQgq116+vyf1+T69daq0BAGMg=,KO48sA==

    08-07 14:04:04.034 : V/rtsp_server(20161) : a=control:streamid=0

    08-07 14:04:04.034 : V/rtsp_server(20161) : m=audio 0 RTP/AVP 97

    08-07 14:04:04.034 : V/rtsp_server(20161) : b=AS:29

    08-07 14:04:04.034 : V/rtsp_server(20161) : a=rtpmap:97
    MPEG4-GENERIC/44100/1

    08-07 14:04:04.034 : V/rtsp_server(20161) : a=fmtp:97
    profile-level-id=1 ;mode=AAC-hbr ;sizelength=13 ;indexlength=3 ;indexdeltalength=3 ;
    config=1208

    08-07 14:04:04.034 : V/rtsp_server(20161) : a=control:streamid=1

    Running the same application on Galaxy S2 works since it uses libopencore. But on newer devices it crashes while trying to extract the width and height from the extradata.

    So the problem is with the sprop-parameter-sets.

    My question is why does libstagefright parse the sprop-parameter-sets differently and how could the existing string be converted for compatibility ?

  • UDP to MP4 transcoding via ffmpeg

    30 juillet 2013, par Andrew J. Freyer

    I have not been able go find any substantial documentation to answer this question, so please forgive me if this is a simple question.

    Quite simply, I am trying to transcode a UDP video stream to a live MP4 stream with ffmpeg.

    I have been unable to successfully implement either step here. Any help or advice is appreciated.

  • ffmpeg : using the returned data in php

    4 décembre 2013, par user1503606

    I have started using ffmpeg and I am very new to it, so please bear with me.

    I have installed ffmpeg on my server and it works great ; I can run certain commands and get output data when logged in via ssh

    For example I can run

    ffmpeg -i Sleep\ Away.mp3

    Which returns the following :

    ffmpeg version 0.8.5, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Aug 20 2012 09:28:43 with clang 3.1 (tags/Apple/clang-318.0.61)
    
  configuration: --enable-nonfree --enable-gpl --enable-version3 --enable-postproc --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libfaac --enable-libxvid --enable-libx264 --enable-libvpx --enable-hardcoded-tables --enable-shared --enable-pthreads --disable-indevs --cc=clang
    
  libavutil    51.  9. 1 / 51.  9. 1
    
  libavcodec   53.  7. 0 / 53.  7. 0
    
  libavformat  53.  4. 0 / 53.  4. 0
    
  libavdevice  53.  1. 1 / 53.  1. 1
    
  libavfilter   2. 23. 0 /  2. 23. 0
    
  libswscale    2.  0. 0 /  2.  0. 0
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
[mp3 @ 0x7f9694011a00] Header missing
    
    Last message repeated 13 times
    
[mp3 @ 0x7f9694007c00] max_analyze_duration 5000000 reached at 5007020
    
[mp3 @ 0x7f9694007c00] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from 'Sleep Away.mp3':
    
  Metadata:
    
    track           : 3
    
    album           : Bob Acri
    
    artist          : Bob Acri
    
    title           : Sleep Away
    
    genre           : Jazz
    
    album_artist    : Bob Acri
    
    composer        : Robert R. Acri
    
    date            : 2004
    
  Duration: 00:03:21.77, start: 0.000000, bitrate: 192 kb/s
    
    Stream #0.0: Audio: mp3, 44100 Hz, stereo, s16, 192 kb/s
    
At least one output file must be specified

    The question I am asking is, how can I use the output data above ? I am developiong a music website ; say I want to loop through all the MP3 files and save the info about them into a database, so that the above would result in :

    Sleep Away.mp3    mp3    3:21    Jazz    2004     Bob Acri ...

    obviously in a table

    I have tried to use the php backtick operator with no success so far. I just thought I would put a question up here to get some advice from people that have done something similar.

    Thanks

    Update : I have tried the following

    &lt;?php $output = `ffmpeg -i Sleep\ Away.mp3`; echo "<pre>$output</pre>"; ?>
    
&lt;?php $output = shell_exec(&#39;ffmpeg -i Sleep\ Away.mp3&#39;); echo "<pre>$output</pre>"; ?>

    both don't appear to return anything.

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