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Autres articles (68)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • Ecrire une actualité

    21 juin 2013, par

    Présentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
    Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
    Vous pouvez personnaliser le formulaire de création d’une actualité.
    Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)

  • 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.

Sur d’autres sites (7048)

  • Transcode video with ffmpeg can't play by Win10 system player ?

    16 juin 2017, par wzjing

     I’m doing a video transcoder demo with ffmpeg lib and libx264 lib. I already can transcode video successully, but the output video can only play by some powerful player like VLC. I need it can be played by the Win10 system player and the Android system player. I hava found the reason may be encode AVCodecContext args. I try to copy those args frome decode AVCodecContext, the output can be played by Win10 defualt player, but the video became totally black.
     Here is my encode AVCodecContext args :

            encoder = avcodec_find_encoder(AV_CODEC_ID_H264);
    

    
        if (!encoder) {
    
            av_log(NULL, AV_LOG_FATAL, "Necessary encoder not found\n");
    
            return AVERROR_INVALIDDATA;
    
        }
    
        enc_ctx = avcodec_alloc_context3(encoder);
    
        enc_ctx->height = output_height;
    
        enc_ctx->width = output_width;
    
        enc_ctx->sample_aspect_ratio = dec_ctx->sample_aspect_ratio;
    
        enc_ctx->bit_rate = 1000000;
    

    
        /* take first format from list of supported formats */
    
        if (encoder->pix_fmts)
    
            enc_ctx->pix_fmt = AV_PIX_FMT_YUV420P;
    
        else
    
            enc_ctx->pix_fmt = dec_ctx->pix_fmt;
    

    
        enc_ctx->time_base = av_inv_q(dec_ctx->framerate);
    
        enc_ctx->gop_size = 12;
    
        av_opt_set(enc_ctx->priv_data, "preset", "slow", 0);
    
        av_opt_set(enc_ctx->priv_data, "tune", "zerolatency", 0);
    

    
        enc_ctx->profile = FF_PROFILE_H264_HIGH;
    
        enc_ctx->codec_type = AVMEDIA_TYPE_VIDEO;       
    

    
        enc_ctx->codec_tag = 0;

  • Transcode video with ffmpeg can't play by Win10 system player ?

    16 juin 2017, par wzjing

     I’m doing a video transcoder demo with ffmpeg lib and libx264 lib. I already can transcode video successully, but the output video can only play by some powerful player like VLC. I need it can be played by the Win10 system player and the Android system player. I hava found the reason may be encode AVCodecContext args. I try to copy those args frome decode AVCodecContext, the output can be played by Win10 defualt player, but the video became totally black.
     Here is my encode AVCodecContext args :

            encoder = avcodec_find_encoder(AV_CODEC_ID_H264);
    

    
        if (!encoder) {
    
            av_log(NULL, AV_LOG_FATAL, "Necessary encoder not found\n");
    
            return AVERROR_INVALIDDATA;
    
        }
    
        enc_ctx = avcodec_alloc_context3(encoder);
    
        enc_ctx->height = output_height;
    
        enc_ctx->width = output_width;
    
        enc_ctx->sample_aspect_ratio = dec_ctx->sample_aspect_ratio;
    
        enc_ctx->bit_rate = 1000000;
    

    
        /* take first format from list of supported formats */
    
        if (encoder->pix_fmts)
    
            enc_ctx->pix_fmt = AV_PIX_FMT_YUV420P;
    
        else
    
            enc_ctx->pix_fmt = dec_ctx->pix_fmt;
    

    
        enc_ctx->time_base = av_inv_q(dec_ctx->framerate);
    
        enc_ctx->gop_size = 12;
    
        av_opt_set(enc_ctx->priv_data, "preset", "slow", 0);
    
        av_opt_set(enc_ctx->priv_data, "tune", "zerolatency", 0);
    

    
        enc_ctx->profile = FF_PROFILE_H264_HIGH;
    
        enc_ctx->codec_type = AVMEDIA_TYPE_VIDEO;       
    

    
        enc_ctx->codec_tag = 0;

  • Revision 5b756748fd : tests : clear system state after non-API calls add ClearSystemState() to reset M

    18 juin 2013, par James Zern

    Changed Paths :
     Add /test/clear_system_state.h


     Modify /test/idct_test.cc


     Modify /test/intrapred_test.cc


     Modify /test/pp_filter_test.cc


     Modify /test/sad_test.cc


     Modify /test/sixtap_predict_test.cc


     Modify /test/subtract_test.cc


     Modify /test/test.mk


     Modify /test/variance_test.cc



    tests : clear system state after non-API calls

    add ClearSystemState() to reset MMX registers avoiding corrupting
    subsequent tests.

    Change-Id : I668deb09aa7aa467709776e5819f936910698bc0

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