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Médias (91)

Autres articles (108)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • 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

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

Sur d’autres sites (6334)

  • VLC huge buffering times over rtp for local H264 stream

    15 mars 2022, par mike

    I'm outputting an H264 stream, encoded by my application using ffmpeg. I can display it using ffplay, but when trying to view the stream in VLC, I only get the first frame, or it looks like that's the case.

    


    The messages output shows that it is "buffering", taking around a minute to get to 100% when the frame updates.
When using ffplay, the latency is about 50-100ms at worst.

    


    I am sending to rtp://127.0.0.1:6666?pkt_size=1316 with the format rtp_mpegts.
I am new to this and it's highly likely I haven't set the frame up completely correctly. The process is (minus declarations and error checking)

    


    codec_name = "libx264";&#xA;codec = avcodec_find_encoder_by_name(codec_name.c_str());&#xA;context = avcodec_alloc_context3(codec);&#xA;pkt = av_packet_alloc();&#xA;context->bit_rate = 5 * Mega;&#xA;context->width = info.DisplayWidth;&#xA;context->height = info.DisplayHeight;&#xA;context->time_base = { 1, FPS };&#xA;context->framerate = { FPS, 1 };&#xA;context->gop_size = 100;&#xA;context->max_b_frames = 1;            &#xA;context->pix_fmt = AV_PIX_FMT_YUV420P;&#xA;if (codec->id == AV_CODEC_ID_H264)&#xA;            {&#xA;                check_ret("set option: preset", av_opt_set(context->priv_data, "preset", "fast", 0));&#xA;                check_ret("set option: tune", av_opt_set(context->priv_data, "tune", "zerolatency", 0));&#xA;                check_ret("set option: profile", av_opt_set(context->priv_data, "profile", "baseline", 0));                &#xA;            }&#xA;check_ret("open codec", avcodec_open2(context, codec, NULL));&#xA;&#xA;// setup the stream &#xA;fmt = (AVOutputFormat*)av_guess_format("rtp_mpegts", NULL, NULL);&#xA;&#xA;avformat_alloc_output_context2(&amp;avfctx, fmt, fmt->name,&#xA;            "rtp://127.0.0.1:6666?pkt_size=1316"); &#xA;        &#xA;avio_open(&amp;avfctx->pb, avfctx->url, AVIO_FLAG_WRITE);&#xA;AVStream* stream = avformat_new_stream(avfctx, codec);&#xA;avcodec_parameters_from_context(stream->codecpar, context);&#xA;stream->time_base.num = 1;&#xA;stream->time_base.den = FPS;&#xA;avformat_write_header(avfctx, NULL);&#xA;&#xA;// then the encoding (in an output loop)&#xA;<not get="get" frame="frame" from="from" rgba="rgba" to="to" yuv="yuv">&#xA;yuvFrame->pts = i&#x2B;&#x2B;; // i is incremented every frame&#xA;avcodec_send_frame(enc_ctx, yuvFrame);&#xA; while (ret >= 0) {&#xA;  ret = avcodec_receive_packet(enc_ctx, pkt);          &#xA;  //ret = av_interleaved_write_frame(avfctx, pkt); was using this, don&#x27;t seem to need it&#xA;  ret = av_write_frame(avfctx, pkt);&#xA;  av_packet_unref(pkt);&#xA;}&#xA;</not>

    &#xA;

    The VLC output looks like this :

    &#xA;

    main debug: using hw decoder module "d3d11va"&#xA;avcodec info: Using D3D11VA (NVIDIA GeForce RTX 2080 Super with Max-Q Design, vendor 10de(NVIDIA), device 1e93, revision a1) for hardware decoding&#xA;qt debug: Logical video size: 1280x720&#xA;main debug: resized to 1280x720&#xA;main debug: VoutDisplayEvent &#x27;resize&#x27; 1280x720&#xA;main debug: Received first picture&#xA;main debug: Buffering 1%&#xA;main debug: Buffering 2%&#xA;main debug: Buffering 3%&#xA;main debug: auto hiding mouse cursor&#xA;main debug: Buffering 4%&#xA;main debug: Buffering 5%&#xA;main debug: Buffering 6%&#xA;main debug: Buffering 7%&#xA;main debug: Buffering 8%&#xA;main debug: Buffering 9%&#xA;main debug: Buffering 10%&#xA;main debug: auto hiding mouse cursor&#xA;main debug: Buffering 11%&#xA;rtp warning: 1 packet(s) lost&#xA;rtp warning: 1 packet(s) lost&#xA;rtp warning: 1 packet(s) lost&#xA;ts warning: discontinuity received 0x3 instead of 0xd (pid=256)&#xA;ts warning: discontinuity received 0x5 instead of 0xf (pid=256)&#xA;ts warning: discontinuity received 0x1 instead of 0xb (pid=256)&#xA;main debug: Buffering 12%&#xA;main debug: Buffering 13%&#xA;main debug: Buffering 14%&#xA;main debug: Buffering 15%&#xA;main debug: Buffering 16%&#xA;main debug: Buffering 17%&#xA;main debug: Buffering 18%&#xA;main debug: auto hiding mouse cursor&#xA;main debug: Buffering 19%&#xA;main debug: Buffering 20%&#xA;

    &#xA;

  • Anomalie #3668 : Un seul rubrique - impossible d’écrire un article

    2 février 2016, par phe nix

    Hello,

    J’ai pas encore pu refaire de test.

    Mais si tu ne reproduit pas, cela doit venir d’un des plugins

  • Anomalie #3714 : squelette article : documents dupliqués en cas de majuscule

    29 mars 2016, par b b

    Voilà le patch, il est tout simple et j’aime ça :)

    J’attends vos retours avant de l’envoyer.