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Autres articles (56)

  • 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

  • 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 (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

Sur d’autres sites (10077)

  • encoding using ffmpeg for mac app

    9 mai 2012, par user946061

    In my mac app i am using ffmpeg library for video encoding in 4 different types of formats for iPhone, iPod, AppleTV and HD.But the encoding takes so much time and the CPU usage becomes very low.I want someone to get me any idea to maximize this CPU usage and minimize the encoding time-period so that the application may enhance the performance level.

  • Concatenate two mp4 files using ffmpeg

    9 mars 2017, par Mark L

    I’m trying to concatenate two mp4 files using ffmpeg. I need this to be an automatic process hence why I chose ffmpeg. I’m converting the two files into .ts files and then concatenating them and then trying to encode that concated .ts file. The files are h264 and aac encoded and I’m hoping to keep the quality the same or as close to original as possible.

    ffmpeg -i part1.mp4 -vcodec copy -vbsf h264_mp4toannexb -acodec copy part1.ts
    
ffmpeg -i part2.mp4 -vcodec copy -vbsf h264_mp4toannexb -acodec copy part2.ts
    
cat part1.ts part2.ts > parts.ts
    
ffmpeg -y -i parts.ts -acodec copy -ar 44100 -ab 96k -coder ac -vbsf h264_mp4toannexb parts.mp4

    Unfortunately I’m getting the following error message coming back from ffmpeg during encoding :

    [h264 @ 0x1012600]sps_id out of range
    
[h264 @ 0x1012600]non-existing SPS 0 referenced in buffering period
    
[h264 @ 0x1012600]sps_id out of range
    
[h264 @ 0x1012600]non-existing SPS 0 referenced in buffering period
    
[NULL @ 0x101d600]error, non monotone timestamps 13779431 >= 13779431kbits/s    
    
av_interleaved_write_frame(): Error while opening file

    This happens about half way through encoding which makes me think that you can’t concat two .ts files together and have it work. Any help would be much appreciated.

  • FFmpeg problem while writing streams to file

    23 septembre 2011, par NoviceAndNovice

    I finally "able" to write video stream packets to a file using the function

    av_interleaved_write_frame(outputContext, &packet);

    But after a short period of time i got this error :

    Application provided invalid, non monotonically increasing dts to muxer 
    
in stream 0: *numberX* >= *numberY*

    Anybody has any idea, what may cause this ? And how to fix it ?

    Best Wishes

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