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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 (...)

Sur d’autres sites (5192)

  • How to convert Live video stream from YUV(HDYC) to RGB

    9 août 2013, par user2499628

    I want to convert video streams from webcam. that video streams are called HDYC. I think it's a little special so I didn't control now.

    My question is How to convert that format to rgb in c++ using ffmpeg ? but there are some constraints.
    I don't want to make a file. in other wors, It needs to convert video streams from webcam. also It's a real time operation.

    Thanks.

  • 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 ?

  • FFmpeg seeking in Mpeg4 streams

    4 juillet 2012, par Chris Robinson

    I am currently attempting to develop a player that can perform accurate seeking based on an mpeg4 elementary video stream. I'm in the planning stage and trying to decide how to go about things and I'd like some advice before I start.
    Some things to note are :

    • I will have complete control over the encoding of the file.
    • The original content will be I-frame only
    • FFmpeg is the encoding/decoding library
    • Audio can be disregarded for now. I will only be dealing with the video stream.
    • Frame accurate seeking must be implemented

    So, when I'm encoding the content, can I query what type of frame (I, P, B) has been encoded so I can construct an additional index stream for the seeking operation. If not, I can query the GOP after it has been encoded to find the I-frame.

    As for playback, the user needs to be able to type in a specific time and go to that frame (the nearest I-frame will be suitable for now). We can assume that the GOP is closed and the length is fairly short (e.g. 15 frames). My thoughts are to query the index stream that I created during encode and determine the relevant distance into the stream for the requested time.

    I'm not sure how to seek using the FFMpeg library when playing back files.

    Has anyone done anything similar and if so, can you give a brief explanation of how you did it ?

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