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  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • 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 (...)

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  • av_find_stream_info works OK with file, not with pipe

    14 décembre 2016, par Aliza

    I have the following code :

    av_register_all();
    
pFormatCtx = avformat_alloc_context();
    
const char* input = "pipe:";
    
AVInputFormat* iFormat = av_find_input_format("mpegts");
    
if ( avformat_open_input(&pFormatCtx, input, iFormat, NULL) != 0 )
    
         return -1;
    
int res = av_find_stream_info(pFormatCtx);

    when my input is a regular file, this works nicely and pFormatCtx is populated with the streams in the file. However, when i set input to "pipe :", av_find_stream_info returns with -1.

    I am using the same file and piping it by running
    cat mpeg.ts | myApp

    Any ideas ?

    Thanks,
    Aliza

  • How to use hardware acceleration with ffmpeg

    16 juin 2014, par ixSci

    I need to have ffmpeg decode my video(e.g. h264) using hardware acceleration. I’m using the usual way of decoding frames : read packet -> decode frame. And I’d like to have ffmpeg speed up decoding. So I’ve built it with --enable-vaapi and --enable-hwaccel=h264. But I don’t really know what should I do next. I’ve tried to use avcodec_find_decoder_by_name("h264_vaapi") but it returns nullptr.
    Anyway, I might want to use others API and not just VA API. How one is supposed to speed up ffmpeg decoding ?

    P.S. I didn’t find any examples on Internet which uses ffmpeg with hwaccel.

  • How to use hardware acceleration with ffmpeg

    5 avril 2018, par ixSci

    I need to have ffmpeg decode my video(e.g. h264) using hardware acceleration. I’m using the usual way of decoding frames : read packet -> decode frame. And I’d like to have ffmpeg speed up decoding. So I’ve built it with --enable-vaapi and --enable-hwaccel=h264. But I don’t really know what should I do next. I’ve tried to use avcodec_find_decoder_by_name("h264_vaapi") but it returns nullptr.
    Anyway, I might want to use others API and not just VA API. How one is supposed to speed up ffmpeg decoding ?

    P.S. I didn’t find any examples on Internet which uses ffmpeg with hwaccel.

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