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Autres articles (68)

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (10998)

  • av_guess_format h264 returns NULL on Android

    21 mai 2013, par Miguel Angel

    executing this code :

    av_log_set_callback(_log_callback);
    
av_register_all();
    
avcodec_register_all();
    
LOG(avcodec_configuration());
    
AVOutputFormat * fmt = av_guess_format( "h264", NULL, NULL );

    And showing in my log file the next configuration :

     --target-os=linux --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-avfilter --disable-everything --enable-libx264 --enable-encoder=libx264 --enable-decoder=h264 --enable-gpl ....

    av_guess_format is returning NULL.

    Any suggestion ?
    many thanks

  • ffprobe returns coded_picture_number with a frame missing

    26 janvier 2018, par Hélder

    While using ffprobe to get the pict_type and coded_picture_number I noticed while doing a for loop in python that one of the coded_picture_number was missing.

    This is the command used :

    ffprobe foreman.m4v -show_frames | grep -E 'pict_type|coded_picture_number' > output.txt

    And I get returned all frame number with exception of one :

    coded_picture_number=290
    
pict_type=P
    
coded_picture_number=289
    
pict_type=B
    
coded_picture_number=292
    
pict_type=P
    
coded_picture_number=291
    
pict_type=B
    
coded_picture_number=294
    
pict_type=P
    
coded_picture_number=293
    
pict_type=B
    
coded_picture_number=297
    
pict_type=B
    
coded_picture_number=296

    The total is 297 coded_picture_number, where does the 295 go ? Does anyone know how to get it ? It causes errors in python when taking ranges and trying to read the image from the data frame.

    If it is possible to have a smooth numbering per pict_type would be perfect. Any clue ?

  • FFMPEG in Python Returns Corrupted Video

    11 décembre 2020, par user14210589

    In Python, I run ffmpeg to convert a video to a .mp4 file. However, for some reason, the video it creates is not compatible with anything (I'm pretty sure it's corrupted). The code looks like this :

    


    import os

os.system("ffmpeg -i Images/i1.mov Images/edited.mp4 -loglevel quiet")
os.remove("Images/i1.mov")
os.rename("Images/edited.mp4", "Images/i1.mp4")


    


    However, the video file created doesn't play.
I am getting an error that just says killed. What am I doing wrong ?

    


    Edit : I also tried converting to .WebM rather than .mp4, and it had no effect. (it still gave the same error)

    


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