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  • Encodage et transformation en formats lisibles sur Internet

    10 avril 2011

    MediaSPIP transforme et ré-encode les documents mis en ligne afin de les rendre lisibles sur Internet et automatiquement utilisables sans intervention du créateur de contenu.
    Les vidéos sont automatiquement encodées dans les formats supportés par HTML5 : MP4, Ogv et WebM. La version "MP4" est également utilisée pour le lecteur flash de secours nécessaire aux anciens navigateurs.
    Les documents audios sont également ré-encodés dans les deux formats utilisables par HTML5 :MP3 et Ogg. La version "MP3" (...)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

Sur d’autres sites (8831)

  • VLC stops video before the end of video encoded with h264

    12 mai 2020, par user2342558

    VLC stops video before the end of video and prints this in terminal :

    



    [h264 @ 0x7ff318ce36c0] co located POCs unavailable
[h264 @ 0x7ff318ce36c0] mmco: unref short failure
[h264 @ 0x7ff318c7f0c0] co located POCs unavailable
[h264 @ 0x7ff318c9da60] mmco: unref short failure
[h264 @ 0x7ff318ce36c0] co located POCs unavailable
[h264 @ 0x7ff318cff780] mmco: unref short failure
[h264 @ 0x7ff318d37b00] co located POCs unavailable
[h264 @ 0x7ff318c7f0c0] co located POCs unavailable
[h264 @ 0x7ff318c9da60] mmco: unref short failure
[h264 @ 0x7ff318cff780] co located POCs unavailable
[h264 @ 0x7ff318d37b00] co located POCs unavailable
[h264 @ 0x7ff318c7f0c0] mmco: unref short failure
[h264 @ 0x7ff318ce36c0] co located POCs unavailable
[h264 @ 0x7ff318d1b900] co located POCs unavailable
[h264 @ 0x7ff318d37b00] mmco: unref short failure
[h264 @ 0x7ff318cff780] mmco: unref short failure
[h264 @ 0x7ff318d1b900] mmco: unref short failure
[h264 @ 0x7ff318c9da60] co located POCs unavailable
[h264 @ 0x7ff318ce36c0] co located POCs unavailable
[h264 @ 0x7ff318d37b00] mmco: unref short failure
[00007ff318c6a260] main decoder error: Timestamp conversion failed for 24718094: no reference clock
[00007ff318c6a260] main decoder error: Could not convert timestamp 0 for FFmpeg
[00007ff318c6a260] main decoder error: Timestamp conversion failed for 34926677: no reference clock
[00007ff318c6a260] main decoder error: Could not convert timestamp 0 for FFmpeg
[00007ff318c6a260] main decoder error: Timestamp conversion failed for 45796649: no reference clock
[00007ff318c6a260] main decoder error: Could not convert timestamp 0 for FFmpeg
[h264 @ 0x7ff318d1b900] co located POCs unavailable
[h264 @ 0x7ff318d37b00] mmco: unref short failure
[h264 @ 0x7ff318d37b00] co located POCs unavailable
[h264 @ 0x7ff318c7f0c0] mmco: unref short failure
[h264 @ 0x7ff318ce36c0] co located POCs unavailable
[h264 @ 0x7ff318cff780] mmco: unref short failure
[h264 @ 0x7ff318d1b900] co located POCs unavailable
[h264 @ 0x7ff318d37b00] mmco: unref short failure
[00007ff318c6a260] main decoder error: buffer deadlock prevented


    



    I created the video file converting the original video with this command :

    



    ffmpeg -i video.mp4 -b 1000000 video_mod.mp4


    



    The same file is played correctly using Firefox.

    



    I converted other video files with that command and Vlc can play them entirely.

    



    How to solve this error ?

    



    Thanks in advance !

    


  • Pushing data while downloading to ffmpeg

    5 avril 2019, par Nguyễn Thành Đạt

    I have try to relivestream video to facebook with source from youtube.

    I use the ytdl to download video from youtube.
    I want to during the video download process, i will livestream

    When i run my source in blow by nodejs then the error appears :

    var url = 'https://www.youtube.com/watch?v=CTL_5dqDOyc';
    
var ffmpeg = spawn('ffmpeg', ['-re', '-i', 'pipe:0', '-i', 'logo.png',' acodec', 'libmp3lame',  '-ar', '44100', '-b:a', '128k', '-profile:v', 'baseline', '-s', '854x480', '-bufsize', '6000k', '-vcodec', 'libx264', '-preset', 'veryfast', '-g', '30', '-r', '30', '-f', 'flv', 'rpmt link']);
    
ytdl(url).pipe(ffmpeg.stdin);

  • How to check when ffmpeg completes a video segment ?

    27 mai 2022, par Matthew Czarnek

    I'm using a ffmpeg Process from within my C# program. I start it off and run it in segmented mode.

    


    ffmpeg -i rtsp://127.0.0.1/axis-media/media.amp?resolution=1280x720 -c copy -map 0 -f segment -segment_time 21600 -strftime 1 -reset_timestamps 1 -segment_format flv "C:\REPLACE_ME_WITH_REAL_DIRECTORY\%Y-%m-%d_%H%M%S.flv"


    


    This creates a number of recording segments each in their own folder that are 6 hours long. I now need to be able to detect whether a file has started being written and whether it's completed being written as fast as possible to record it to a database. And this needs to work even in the face of crashes.

    


    I'm polling the folder and can detect that a file has started being written. But detecting whether a file has completed is much trickier. Possibly can be done by polling whether or not a file is being written to. Does ffmpeg have some sort of support for this ? Such as when it finishes a file it can launch another program or run a command ?

    


    I will occasionally scan through all the files and make sure that I record the ones that are there in case one is missed. But the more reliable, the better for this application.

    


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