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  • Librairies et binaires spécifiques au traitement vidéo et sonore

    31 janvier 2010, par

    Les logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
    Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
    Binaires complémentaires et facultatifs flvtool2 : (...)

  • Script d’installation automatique de MediaSPIP

    25 avril 2011, par

    Afin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
    Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
    La documentation de l’utilisation du script d’installation (...)

  • Demande de création d’un canal

    12 mars 2010, par

    En fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
    Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...)

Sur d’autres sites (5679)

  • ffmpeg and streaming video - frame time issue

    6 mai 2014, par 4ntoine

    I’ve compiled ffmpeg-android (https://github.com/appunite/AndroidFFmpeg) and it works for files.
    The problem is that it shows nothing for network streams (both rtmp and hls) as frame timestamp is too big and it seems to be not from video beginning (as for file). Then it waits for the first frame time which for network stream is too big :

    player_decode_video copying...
    
05-05 18:11:26.994: INFO/player.c(16998): player_decode_video Decoded video frame: 568.233000, time_base: 51140970
    
05-05 18:11:26.994: INFO/player.c(16998): player_wait_for_frame[0] start
    
...
    
05-05 18:11:30.587: INFO/player.c(16998): player_wait_for_frame[0 = Video] = (568.233000) - (0.000977)
    
05-05 18:11:30.587: INFO/player.c(16998): player_wait_for_frame[0] Waiting for frame: sleeping: 568232023
    
05-05 18:11:31.088: INFO/player.c(16998): player_wait_for_frame[0] timeout
    
05-05 18:11:31.088: INFO/player.c(16998): player_wait_for_frame[0 = Video] = (568.233000) - (0.501542)
    
05-05 18:11:31.088: INFO/player.c(16998): player_wait_for_frame[0] Waiting for frame: sleeping: 567731458
    
05-05 18:11:31.588: INFO/player.c(16998): player_wait_for_frame[0] timeout
    
05-05 18:11:31.588: INFO/player.c(16998): player_wait_for_frame[0 = Video] = (568.233000) - (1.002778)
    
05-05 18:11:31.588: INFO/player.c(16998): player_wait_for_frame[0] Waiting for frame: sleeping: 567230222
    
05-05 18:11:32.089: INFO/player.c(16998): player_wait_for_frame[0] timeout
    
05-05 18:11:32.089: INFO/player.c(16998): player_wait_for_frame[0 = Video] = (568.233000) - (1.504563)
    
05-05 18:11:32.089: INFO/player.c(16998): player_wait_for_frame[0] Waiting for frame: sleeping: 566728437
    
05-05 18:11:32.590: INFO/player.c(16998): player_wait_for_frame[0] timeout
    
05-05 18:11:32.590: INFO/player.c(16998): player_wait_for_frame[0 = Video] = (568.233000) - (2.005708)
    
05-05 18:11:32.590: INFO/player.c(16998): player_wait_for_frame[0] Waiting for frame: sleeping: 566227292

    also i can’t figure out what timestamp for frame for network stream means (for file frames it’s a time from video beginning)

    for file it’s clear : time_base is frame number and timestamp is time from video beginning and it plays the files :

    player_decode_video Decoded video frame: 0.320000, time_base: 8
    
05-05 18:32:42.344: INFO/player.c(16998): player_wait_for_frame[0] start
    
05-05 18:32:42.344: INFO/player.c(16998): player_wait_for_frame[0 = Video] = (0.320000) - (0.344337)
    
05-05 18:32:42.344: INFO/player.c(16998): player_wait_for_frame[0] Waiting for frame: sleeping: -24337
    
05-05 18:32:42.344: INFO/player.c(16998): player_wait_for_frame[0] finish[0]
    
05-05 18:32:42.344: INFO/player.c(16998): player_update_time: 0.346169/4.000000
    
05-05 18:32:42.344: INFO/player.c(16998): player_decode waiting for frame[0]
    
05-05 18:32:42.344: INFO/player.c(16998): player_decode decoding frame[0]
    
05-05 18:32:42.344: INFO/player.c(16998): player_decode_video decoding
    
05-05 18:32:42.344: INFO/player.c(16998): player_decode_video copy wait
    
05-05 18:32:42.344: INFO/player.c(16998): player_read_from_stream Read frame
    
05-05 18:32:42.344: INFO/player.c(16998): player_read_from_stream looking for stream
    
05-05 18:32:42.344: INFO/player.c(16998): player_read_from_stream stream found [0]
    
05-05 18:32:42.344: INFO/player.c(16998): player_read_from_stream waiting for queue
    
05-05 18:32:42.344: INFO/player.c(16998): Format: WINDOW_FORMAT_RGBA_8888
    
05-05 18:32:42.344: INFO/player.c(16998): Buffer: width: 1280, height: 720, stride: 1280
    
05-05 18:32:42.344: INFO/player.c(16998): player_decode_video copying...
    
05-05 18:32:42.425: INFO/player.c(16998): player_decode_video Decoded video frame: 0.360000, time_base: 9
    
05-05 18:32:42.425: INFO/player.c(16998): player_wait_for_frame[0] start
    
05-05 18:32:42.425: INFO/player.c(16998): player_wait_for_frame[0 = Video] = (0.360000) - (0.427994)
    
05-05 18:32:42.425: INFO/player.c(16998): player_wait_for_frame[0] Waiting for frame: sleeping: -67994
    
05-05 18:32:42.425: INFO/player.c(16998): player_wait_for_frame[0] finish[0]
    
05-05 18:32:42.425: INFO/player.c(16998): player_update_time: 0.429214/4.000000
    
05-05 18:32:42.425: INFO/player.c(16998): player_decode waiting for frame[0]
    
05-05 18:32:42.425: INFO/player.c(16998): player_decode decoding frame[0]
    
05-05 18:32:42.425: INFO/player.c(16998): player_decode_video decoding
    
05-05 18:32:42.425: INFO/player.c(16998): player_read_from_stream Read frame
    
05-05 18:32:42.425: INFO/player.c(16998): player_read_from_stream looking for stream
    
05-05 18:32:42.425: INFO/player.c(16998): player_read_from_stream stream found [0]
    
05-05 18:32:42.425: INFO/player.c(16998): player_read_from_stream waiting for queue
    
05-05 18:32:42.425: INFO/player.c(16998): player_decode_video copy wait
    
05-05 18:32:42.435: INFO/player.c(16998): Format: WINDOW_FORMAT_RGBA_8888
    
05-05 18:32:42.435: INFO/player.c(16998): Buffer: width: 1280, height: 720, stride: 1280
    
05-05 18:32:42.435: INFO/player.c(16998): player_decode_video copying...
    
05-05 18:32:42.495: INFO/player.c(16998): player_decode_video Decoded video frame: 0.400000, time_base: 10
    
05-05 18:32:42.495: INFO/player.c(16998): player_wait_for_frame[0] start
    
05-05 18:32:42.495: INFO/player.c(16998): player_wait_for_frame[0 = Video] = (0.400000) - (0.494742)
    
05-05 18:32:42.495: INFO/player.c(16998): player_wait_for_frame[0] Waiting for frame: sleeping: -94742
    
05-05 18:32:42.495: INFO/player.c(16998): player_wait_for_frame[0] finish[0]
    
05-05 18:32:42.495: INFO/player.c(16998): player_update_time: 0.495993/4.000000
    
05-05 18:32:42.495: INFO/player.c(16998): player_decode waiting for frame[0]
    
05-05 18:32:42.495: INFO/player.c(16998): player_decode decoding frame[0]
    
05-05 18:32:42.495: INFO/player.c(16998): player_decode_video decoding
    
05-05 18:32:42.495: INFO/player.c(16998): player_decode_video copy wait
    
05-05 18:32:42.495: INFO/player.c(16998): player_read_from_stream Read frame
    
05-05 18:32:42.495: INFO/player.c(16998): Format: WINDOW_FORMAT_RGBA_8888
    
05-05 18:32:42.495: INFO/player.c(16998): Buffer: width: 1280, height: 720, stride: 1280
    
05-05 18:32:42.495: INFO/player.c(16998): player_decode_video copying...
    
05-05 18:32:42.495: INFO/player.c(16998): player_read_from_stream looking for stream
    
05-05 18:32:42.495: INFO/player.c(16998): player_read_from_stream stream found [0]
    
05-05 18:32:42.495: INFO/player.c(16998): player_read_from_stream waiting for queue
    
05-05 18:32:42.555: INFO/player.c(16998): player_decode_video Decoded video frame: 0.440000, time_base: 11
    
05-05 18:32:42.555: INFO/player.c(16998): player_wait_for_frame[0] start
    
05-05 18:32:42.555: INFO/player.c(16998): player_wait_for_frame[0 = Video] = (0.440000) - (0.556698)
    
05-05 18:32:42.555: INFO/player.c(16998): player_wait_for_frame[0] Waiting for frame: sleeping: -116698
    
05-05 18:32:42.555: INFO/player.c(16998): player_wait_for_frame[0] finish[0]
    
05-05 18:32:42.555: INFO/player.c(16998): player_update_time: 0.557858/4.000000
    
05-05 18:32:42.555: INFO/player.c(16998): player_decode waiting for frame[0]
    
05-05 18:32:42.555: INFO/player.c(16998): player_read_from_stream Read frame
    
05-05 18:32:42.555: INFO/player.c(16998): player_read_from_stream looking for stream
    
05-05 18:32:42.555: INFO/player.c(16998): player_read_from_stream stream found [0]
    
05-05 18:32:42.555: INFO/player.c(16998): player_read_from_stream waiting for queue
    
05-05 18:32:42.555: INFO/player.c(16998): player_decode decoding frame[0]
    
05-05 18:32:42.555: INFO/player.c(16998): player_decode_video decoding
    
05-05 18:32:42.555: INFO/player.c(16998): player_decode_video copy wait
    
05-05 18:32:42.565: INFO/player.c(16998): Format: WINDOW_FORMAT_RGBA_8888
    
05-05 18:32:42.565: INFO/player.c(16998): Buffer: width: 1280, height: 720, stride: 1280
    
05-05 18:32:42.565: INFO/player.c(16998): player_decode_video copying...
    
05-05 18:32:42.625: INFO/player.c(16998): player_decode_video Decoded video frame: 0.480000, time_base: 12

    So what is the meaning of timestamp for stream and what should i change to make it playing streams (rtmp/hls - its can be opened now but it wait for frame time which is far in the future) ?

    UPDATE :

        int64_t pts = av_frame_get_best_effort_timestamp(frame);
    
if (pts == AV_NOPTS_VALUE) {
    
    pts = 0;
    
}
    
int64_t time = av_rescale_q(pts, stream->time_base, AV_TIME_BASE_Q);
    
LOGI(10,
    
        "player_decode_video Decoded video frame: %f, time_base: %" SCNd64,
    
        time/1000000.0, pts);
    
player_wait_for_frame(player, time, stream_no);

    it extracts time which is far in future :

    player_wait_for_frame[0 = Video] = (568.233000) - (0.000977)

    Is it correct ?

  • Transcoding wmv file to mp4 using Jave

    17 mai 2013, par Fawkes

    I am trying to use Jave to convert a wmv file into h264(mp4).
    The final version created by Jave plays fine with VLC player but when I try to use it inside the HTML5 video tag, it is not able to play the file.

    I am guessing that the issue is with the attributes I am setting for the video attributes.

    Java Code :

        videoAttributes.setCodec("mpeg4");
    
    videoAttributes.setTag("mpeg4");
    
    videoAttributes.setBitRate(new Integer(5000));
    
    videoAttributes.setFrameRate(new Integer(30));
    
    videoAttributes.setSize(new VideoSize(512, 384));
    
    encodingAttributes.setVideoAttributes(videoAttributes);
    
    encodingAttributes.setFormat("mp4");

    HTML code :

        <video controls="true" width="400" height="200">
    
        <source src="path_to_converted_mp4_file" type="video/mp4"></source>
    
        Not Supported
    
    </video>

  • Libav/FFmpeg and Google Summer of Code 2012

    26 avril 2012, par Multimedia Mike — General, ffmpeg, gsoc, gsoc2012, hevc, libav, opus, rtmp, ut video

    So, the projects are participating in the Google Summer of Code for the 2012 season. (While Libav is the project officially accepted to particular, I still refer to the projects because FFmpeg will also benefit).

    Here are the students, projects, and mentors for this summer :

    1. Andrew D’Addesio is working on an Opus Decoder, mentored by Justin Ruggles
    2. Guillaume Martres is working on an HEVC video decoder, mentored by Mashiat Sarker Shakkhar
    3. Jan Ekström is working on an LGPL Ut Video encoder, mentored by Kostya Shishkov
    4. Jordi Ortiz is working to rewrite avserver, mentored by Luca Barbato
    5. Samuel Pitoiset is working on an RTMP[E|S|T|TE] protocol implementation, mentored by Martin Storsjö

    Wish them luck– these are some ambitious projects.

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