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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • 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 (...)

Sur d’autres sites (8124)

  • Read dumepd RTP stream in libav

    25 février 2017, par Pawel K

    Hi I am in a need of a bit of a help/guidance because I got stuck in my research.

    The problem :

    How to convert RTP data using either gstreamer or avlib (ffmpeg) in either API (by programming) or console versions.

    Data

    I have RTP dump that comes from RTP/RTCP over TCP so I can get the precise start and stop for each RTP packet in file. It’s a H264 video stream dump.
    The data is in this fashion because I need to acquire the RTCP/RTP interleaved stream via libcurl (which I’m currently doing)

    Status

    I’ve tried to use ffmpeg to consume pure RTP packets but is seems that using rtp either by console or by programming involves "starting" the whole rtsp/rtp session business in ffmpeg. I’ve stopped there and for the time being I didn’t pursue this avenue deeper. I guess this is possible with lover level RTP API like ff_rtp_parse_packet() I’m too new with this lib to do it straight out.

    Then there is the gstreamer It has somewhat more capabilities to do it without programming, but for the time being I’m not able to figure out how to pass it the RTP dump I have.

    I have also tried to do a little bit of a trickery and stream the dump via socat/nc to the udp port and listen on it via ffplay with sdp file as an input, there seems to be some progress the rtp at least gets recognized, but for socat there are loads of packet missing (data sent too fast perhaps ?) and in the end the data is not visualized. When I used nc the video was badly misshapen but at least there were not that much receive errors.

    One way or another the data is not properly visualized.

    I know I can depacketize the data "by hand" but the idea is to do it via some kind of library because in the end there would also be second stream with audio that would have to be muxed together with the video.

    I would appreciate any help on how to tackle this problem.
    Thanks.

  • Does ffmpeg support DXV compression type of Quicktime

    30 octobre 2014, par mevsme

    I want to batch convert youtube videos for Resolume Avenue. It’s some sort of custom codec. If ffmpeg can do it, what -c:v should I use ? How to preserve alpha channel ?

  • Buffer type video width and height nodejs

    4 août 2021, par Gardezi

    I have a buffer array which is a video. I'm trying to figure out a way with which I can extract its width and height. I've tried a couple of packages but they are not working. If somebody can help me out I would be super grateful.

    


    This is a snapshot of the buffer array that I have

    


    <buffer 00="00" 20="20" 66="66" 74="74" 79="79" 70="70" 6d="6d" 34="34" 32="32" 02="02" 69="69" 73="73" 6f="6f" 61="61" 76="76" 63="63" 31="31" 08="08" 72="72" 65="65" 9b="9b" 36="36" 64="64" 177458="177458" more="more" bytes="bytes">&#xA;</buffer>

    &#xA;

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