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Médias (91)

Les Miserables

9 décembre 2019, par sudefou

Mis à jour : Décembre 2019

Langue : français

Type : Textuel

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VideoHandle

8 novembre 2019, par sudefou

Mis à jour : Novembre 2019

Langue : français

Type : Video

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Somos millones 1

21 juillet 2014, par kent1

Mis à jour : Juin 2015

Langue : français

Type : Video

2 commentaires

Tags : publicité

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Un test - mauritanie

3 avril 2014, par kent1

Mis à jour : Avril 2014

Langue : français

Type : Textuel

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Pourquoi Obama lit il mes mails ?

4 février 2014, par kent1

Mis à jour : Février 2014

Langue : français

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IMG 0222

6 octobre 2013, par Guffin

Mis à jour : Octobre 2013

Langue : français

Type : Image

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Autres articles (41)

XMP PHP

13 mai 2011, par kent1

Dixit Wikipedia, XMP signifie :
Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)
Mise à jour de la version 0.1 vers 0.2

24 juin 2013, par kent1

Explications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...)
Ajout d’utilisateurs manuellement par un administrateur

12 avril 2011, par kent1

L’administrateur d’un canal peut à tout moment ajouter un ou plusieurs autres utilisateurs depuis l’espace de configuration du site en choisissant le sous-menu "Gestion des utilisateurs".
Sur cette page il est possible de :
1. décider de l’inscription des utilisateurs via deux options : Accepter l’inscription de visiteurs du site public Refuser l’inscription des visiteurs
2. d’ajouter ou modifier/supprimer un utilisateur
Dans le second formulaire présent un administrateur peut ajouter, (...)

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 14

Sur d’autres sites (4033)

Mixed audio and video HLS

26 décembre 2018, par Andrey Pogorelov

There is video (without audio) and audio in a separate file. It is necessary to connect this video and audio to a stream and give it to the user in the form of an HLS stream or something else. Something like YouTube, there is video in 1080 quality - without audio mixed with audio track. Video and audio do not need to transcode, just mixed, so that the processor doesnt be used. Maybe you can do something like regular nginx tools ?

ffmpeg stream decoding - artefacts when not using ffplay

18 décembre 2018, par Lucker10

I stream a video capture via RTP using libx264. For now, I just stream to localhost.
For watching the stream, I use the ffmpeg library. When I set the GOP size greater than 1 (only I frames), I get artefacts on the receiver side . The strange thing is, when I use ffplay, the image is perfect . What am I doing wrong ?

Settings for encoding

output_codec_ctx->bit_rate = 5000000;

output_codec_ctx->width = 1920;

output_codec_ctx->height = 1080;

output_codec_ctx->time_base.den = 30; // frames per second

output_codec_ctx->time_base.num = 1;

output_codec_ctx->gop_size = 10; // gop size

output_codec_ctx->max_b_frames = 0; // B frames

output_codec_ctx->pix_fmt = AV_PIX_FMT_YUV420P; // output pixel format

output_codec_ctx->codec_type = AVMEDIA_TYPE_VIDEO;



av_opt_set(output_codec_ctx->priv_data, "preset", "ultrafast", 0);

av_opt_set(output_codec_ctx->priv_data, "tune", "zerolatency", 0);

Code for decoding

AVFormatContext *pFormatCtx;

AVCodecContext *input_codec_ctx;

AVCode *pCodec;

avdevice_register_all(); // for device

avformat_network_init();

pFormatCtx = avformat_alloc_context();

input_codec_ctx = avcodec_alloc_context3(nullptr);

AVDictionary *options = nullptr;

av_dict_set(&amp;options, "protocol_whitelist", "file,udp,rtp", 0);

av_dict_set(&amp;options, "fflags", "nobuffer",0);



avformat_open_input(&amp;pFormatCtx, "rtp://127.0.0.1:49990", nullptr, &amp;options);



avformat_find_stream_info(pFormatCtx, nullptr);

for (uint i = 0; i &lt; pFormatCtx->nb_streams; i++)

 {

   if (pFormatCtx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)

   {

     videoStream = static_cast<int>(i);

     break;

   }



 }



av_read_play(pFormatCtx);    //play stream

pCodec = avcodec_find_decoder(pFormatCtx->streams[videoStream]->codecpar->codec_id);

AVCodecParameters *codec_param = pFormatCtx->streams[videoStream]->codecpar;

avcodec_parameters_to_context(input_codec_ctx, codec_param);

avcodec_open2(input_codec_ctx, pCodec, nullptr);



AVPacket packet;

AVPacket *pkt  = &amp;packet;

AVFrame *frame;

frame = av_frame_alloc();



av_init_packet(pkt);

pkt->data = nullptr;    // packet data will be allocated by the encoder

pkt->size = 0;



while(true){

    av_read_frame(pFormatCtx,pkt);

    avcodec_send_packet(input_codec_ctx,pkt);

    avcodec_receive_frame(input_codec_ctx,frame);

}

</int>

Initialization and stuff omitted. Console output for custom decoding :

NULL @ 0x1fb7b80] Opening 'stream.sdp' for reading

[sdp @ 0x1fb7b80] Format sdp probed with size=2048 and score=50

[sdp @ 0x1fb7b80] video codec set to: h264

[sdp @ 0x1fb7b80] RTP Packetization Mode: 1

[udp @ 0x1f34140] end receive buffer size reported is 131072

[udp @ 0x1fb8e40] end receive buffer size reported is 131072

[sdp @ 0x1fb7b80] setting jitter buffer size to 500



 Success !

[sdp @ 0x1fb7b80] Before avformat_find_stream_info() pos: 181 bytes read:181 seeks:0 nb_streams:1

[AVBSFContext @ 0x1fa5880] nal_unit_type: 7(SPS), nal_ref_idc: 3

[AVBSFContext @ 0x1fa5880] nal_unit_type: 8(PPS), nal_ref_idc: 3

[AVBSFContext @ 0x1fa5880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[AVBSFContext @ 0x1fa5880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[AVBSFContext @ 0x1fa5880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[AVBSFContext @ 0x1fa5880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[AVBSFContext @ 0x1fa5880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[AVBSFContext @ 0x1fa5880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[AVBSFContext @ 0x1fa5880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[AVBSFContext @ 0x1fa5880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] Format yuv420p chosen by get_format().

[h264 @ 0x1fa51c0] Reinit context to 1920x1088, pix_fmt: yuv420p

[sdp @ 0x1fb7b80] max delay reached. need to consume packet

[sdp @ 0x1fb7b80] RTP: missed 57 packets

[h264 @ 0x1fa51c0] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] Invalid level prefix

[h264 @ 0x1fa51c0] error while decoding MB 2 36

[h264 @ 0x1fa51c0] concealing 3887 DC, 3887 AC, 3887 MV errors in I frame

[h264 @ 0x1fa51c0] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[sdp @ 0x1fb7b80] max delay reached. need to consume packet

[sdp @ 0x1fb7b80] RTP: missed 155 packets

[h264 @ 0x1fa51c0] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] corrupted macroblock 32 41 (total_coeff=-1)

[h264 @ 0x1fa51c0] error while decoding MB 32 41

[h264 @ 0x1fa51c0] concealing 3257 DC, 3257 AC, 3257 MV errors in I frame

[h264 @ 0x1fa51c0] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1fa51c0] nal_unit_type: 5(IDR), nal_ref_idc: 3

[sdp @ 0x1fb7b80] max delay reached. need to consume packet

[sdp @ 0x1fb7b80] RTP: missed 52 packets

[sdp @ 0x1fb7b80] max delay reached. need to consume packet

[sdp @ 0x1fb7b80] RTP: missed 51 packets

[sdp @ 0x1fb7b80] max delay reached. need to consume packet

[sdp @ 0x1fb7b80] RTP: missed 10 packets

[sdp @ 0x1fb7b80] max delay reached. need to consume packet

[sdp @ 0x1fb7b80] RTP: missed 50 packets

[sdp @ 0x1fb7b80] max delay reached. need to consume packet

[sdp @ 0x1fb7b80] RTP: missed 52 packets

[sdp @ 0x1fb7b80] All info found

[sdp @ 0x1fb7b80] After avformat_find_stream_info() pos: 181 bytes read:181 seeks:0 frames:28

found video stream 



The number of elements in stream is  1 



[h264 @ 0x1ee3880] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] Format yuv420p chosen by get_format().

[h264 @ 0x1ee3880] Reinit context to 1920x1088, pix_fmt: yuv420p

[h264 @ 0x1ee3880] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[sdp @ 0x1fb7b80] max delay reached. need to consume packet

[sdp @ 0x1fb7b80] RTP: missed 256 packets

[h264 @ 0x1ee3880] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] Invalid level prefix

[h264 @ 0x1ee3880] error while decoding MB 119 41

[h264 @ 0x1ee3880] concealing 3170 DC, 3170 AC, 3170 MV errors in I frame

[h264 @ 0x1ee3880] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[sdp @ 0x1fb7b80] max delay reached. need to consume packet

[sdp @ 0x1fb7b80] RTP: missed 5 packets

[sdp @ 0x1fb7b80] max delay reached. need to consume packet

[sdp @ 0x1fb7b80] RTP: missed 4 packets

[h264 @ 0x1ee3880] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] out of range intra chroma pred mode

[h264 @ 0x1ee3880] error while decoding MB 100 56

[h264 @ 0x1ee3880] corrupted macroblock 84 65 (total_coeff=-1)

[h264 @ 0x1ee3880] error while decoding MB 84 65

[h264 @ 0x1ee3880] concealing 754 DC, 754 AC, 754 MV errors in I frame

[sdp @ 0x1fb7b80] max delay reached. need to consume packet

[sdp @ 0x1fb7b80] RTP: missed 160 packets

[h264 @ 0x1ee3880] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] corrupted macroblock 17 36 (total_coeff=-1)

[h264 @ 0x1ee3880] error while decoding MB 17 36

[h264 @ 0x1ee3880] concealing 3872 DC, 3872 AC, 3872 MV errors in I frame

[h264 @ 0x1ee3880] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[sdp @ 0x1fb7b80] max delay reached. need to consume packet

[sdp @ 0x1fb7b80] RTP: missed 53 packets

[h264 @ 0x1ee3880] nal_unit_type: 7(SPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 8(PPS), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] nal_unit_type: 5(IDR), nal_ref_idc: 3

[h264 @ 0x1ee3880] corrupted macroblock 62 39 (total_coeff=-1)

[h264 @ 0x1ee3880] error while decoding MB 62 39

[h264 @ 0x1ee3880] concealing 3467 DC, 3467 AC, 3467 MV errors in I frame

Gstreamer pipeline to scale down video before streaming

20 novembre 2014, par r3dsm0k3
Here is what Im trying to achieve.

Im streaming from a Logitech C920 camera on beaglebone black with gstreamer. I have to save a copy of the video saved locally while it is streaming. I have achieved that with tee.
Logitech camera gives h264 encoded video at a certain bitrate, mostly very high.

Im streaming from a moving car on 3G, and the network is not good enough to send the stream to nginx-rtmp server Im using to re-distribute thus gives strong artifacts in the result.

Im able to alter the bitrate of captured video using uvch264.
But then, the locally saved video also would have lower bitrate.

Is there anyway of capturing a higher bitrate 1080p video from the camera and sending a lower resolution, lower bitrate video the streaming server ?

Following is the pipeline I have currently.
```
gst-launch-1.0 -v -e uvch264src initial-bitrate=400000 average-bitrate=400000 iframe-period=3000  device=/dev/video0 name=src auto-start=true  src.vidsrc ! queue ! video/x-h264,width=1920,height=1080,framerate=30/1 ! h264parse ! flvmux streamable=true  name=flvmuxer ! queue ! tee name=t ! queue ! filesink location=/mnt/test.flv t. ! queue ! rtmpsink location=$SERVER/hls/$CAM1
```
I could also try sending the higher bitrate video to a udpsink instead of rtmpsink and with another gstreamer process parallely and takes the data using a udpsink and probably post process/ re-encode and send to rtmp server.

Im also limited by the processing speed BeagleBone has to do for encoding the videos. Currently Im trying for 1 camera and in the finished project I would like to have 2 cameras connected. Upload speed Im getting for the network is under 1Mbps.

How do I solve this with less load on the BeagleBone ? Im very open to a new architecture as well.

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