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Autres articles (101)

  • 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 (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • 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" (...)

Sur d’autres sites (12393)

  • mpegvideo_enc : fix gray flag with 444 jpeg

    27 février 2013, par Michael Niedermayer

    mpegvideo_enc : fix gray flag with 444 jpeg

  • Gray screen issue after recovered video with ffmpeg

    11 mars 2023, par Mark

    After recovered ".mp4" videos from mobile phone, some videos were corrupt. I used the FFMPEG method to fix the videos.
Some CMD commands below ;

    


    First Code: recover_mp4.exe good.mp4 --analyze

Second: recover_mp4.exe bad.mp4 recovered.h264 recovered.aac

Third: ffmpeg.exe -r 30 -i recovered.h264 -i recovered.aac -bsf:a aac_adtstoasc -c:v copy -c:a copy recovered.mp4

Alternate code: ffmpeg -i recovered.h264 -pix_fmt yuv420p -crf 18 result.mp4


    


    Some videos have been improved after using the above codes. Some videos work fine. On the other hand some videos work in video players, but images are only gray or green screen or a mix of both. In short, some videos do not work properly.

    


    Below I am sharing a screenshot from the video that is not working properly.

    


    greyscreenphotoexample

    


    Is it possible to fix the above errors ? Is there any other code or method I should use ? How can I handle the gray screen problems in the video ?

    


    Note : I have used all versions of FFMPEG and Recover_mp4.exe.

    


  • dashenc : move UTCTiming element to the end of the manifest

    27 octobre 2017, par Peter Große
    dashenc : move UTCTiming element to the end of the manifest

    Required by comformance XSD [1].
    

    [1] https://github.com/Dash-Industry-Forum/Conformance-and-reference-source/blob/master/conformance/MPDValidator/schemas/DASH-MPD.xsd
    

    Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavformat/dashenc.c

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