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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Qu’est ce qu’un éditorial

    21 juin 2013, par

    Ecrivez votre de point de vue dans un article. Celui-ci sera rangé dans une rubrique prévue à cet effet.
    Un éditorial est un article de type texte uniquement. Il a pour objectif de ranger les points de vue dans une rubrique dédiée. Un seul éditorial est placé à la une en page d’accueil. Pour consulter les précédents, consultez la rubrique dédiée.
    Vous pouvez personnaliser le formulaire de création d’un éditorial.
    Formulaire de création d’un éditorial Dans le cas d’un document de type éditorial, les (...)

  • 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 (...)

Sur d’autres sites (12436)

  • lavfi/vf_libplacebo : generalize frame update to multiple inputs

    15 juin 2023, par Niklas Haas
    lavfi/vf_libplacebo : generalize frame update to multiple inputs

    In the event that some frame mixes are OK while others are not, the
    
priority goes :
    

    1. Errors in updating any frame -> return error
    
2. Any input incomplete -> request frames and return
    
3. Any inputs OK -> ignore EOF streams and render remaining inputs
    
4. No inputs OK -> set output to most recent status
    

    This logic ensures that we can continue rendering the remaining streams,
    
no matter which streams reach their end of life, until we have no
    
streams left at which point we forward the last EOF.
    • [DH] libavfilter/vf_libplacebo.c

  • Cropping a mp4 into multiple fractions [duplicate]

    19 mai 2021, par DomDom

    Is it possible to crop a (huge) movie into fractions along the X- and Y-axis of the resolution ?

    


    Basically split it into smaller movies into rows and columns with each one having the full length ?

    


    I have no experience with ffmpeg and I tried figuring out this question in the docs but since I'm a noob, I don't understand half of it.

    


    By now I could only find information about cropping along the time of the movie, not resizing it multiple times with the full length.

    


    If not then maybe it is possible to just split an image into rows and columns ?

    


  • AVSampleBufferDisplayLayer with VTDecompressionSession

    7 juillet 2016, par user1784317

    I’ve been struggling with AVSampleBufferDisplayLayer being really choppy with a lot of motion. When there was motion in my live stream, it would be come pixelated and half frozen with multiple frames displaying at once. However, once I added the following piece of code, everything was solved :

    VTDecodeFrameFlags flags = kVTDecodeFrame_EnableAsynchronousDecompression 
    
| kVTDecodeFrame_EnableTemporalProcessing;
    
VTDecodeInfoFlags flagOut;
    
VTDecompressionSessionDecodeFrame(decompressionSession, sampleBuffer, flags,
    
(void*)CFBridgingRetain(NULL), &flagOut);

    Note that I did create the decompression session before, but I don’t actually do anything in the callback. I am still calling enqueueSampleBuffer : on AVSampleBufferDisplayLayer and that is how the video is displayed on the screen.

    Do you have to call VTDecompressionSessionDecodeFrame for AVSampleBufferDisplayLayer to display correctly ? I thought AVSampleBufferDisplayLayerr would use VTDecompressionSessionDecodeFrame internally. Is this due to being on the iOS Simulator ?

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