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    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
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  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (6532)

  • FFmpeg : Trying to fade out first and later fade back in doesn't work [duplicate]

    6 septembre 2023, par Paul S

    While I just became a registered user on the site, I've been utilizing Stack Overflow for years, virtually always being able to find solutions to problems I've encountered. Unfortunately, not this time ; I have encountered a problem with the ffmpeg video fade filter. There are lots of previously proposed issues along with their solutions, but none (that I can find) that address a twist that I have.

    


    Most questions ask, "how do I fade in", or "how do I fade out", and "how do I fade in at the beginning and fade out at the end." If I want to fade in and later fade out, my below code works just fine.

    


    ffmpeg -ss 00.0 -accurate_seek -to 15.0 -i My.Test.File.mkv -c:v h264 -vf fade=t=in:st=0:d=2,fade=t=out:st=13:d=2 -b:v 825k -s 1280x720 -r 29.97 -c:a aac -ar 44100 -ac 2 -b:a 96k output.mp4


    


    However, I actually want to fade out somewhere in the middle, and then fade back in shortly after, and that doesn't seem to work. I structured the ffmpeg command as so :

    


    ffmpeg -ss 00.0 -accurate_seek -to 15.0 -i My.Test.File.mkv -c:v h264 -vf fade=t=out:st=6:d=2,fade=t=in:st=9:d=2 -b:v 825k -s 1280x720 -r 29.97 -c:a aac -ar 44100 -ac 2 -b:a 96k output.mp4


    


    This fails and yields a completely blank video. I've also tried some -filter_complex variations, but get similar results ; fading in and later fading out works, but fading out and later fading in does not.

    


    I'm using the latest ffmpeg windows version on Windows 10. I would have attached a sample video file but I'm seeing how to do that. It is not the original video file that started my issue, but it does duplicate the issue. Not sure what other info might help in coming up with a solution. Thoughts ?

    


  • avfilter/vf_bwdif_cuda : CUDA accelerated bwdif deinterlacer

    30 août 2019, par Philip Langdale
    avfilter/vf_bwdif_cuda : CUDA accelerated bwdif deinterlacer

    I've been sitting on this for 3 1/2 years now(!), and I finally got
    
around to fixing the loose ends and convincing myself that it was
    
correct. It follows the same basic structure as yadif_cuda, including
    
leaving out the edge handling, to avoid expensive branching.
    • [DH] Changelog
    • [DH] configure
    • [DH] doc/filters.texi
    • [DH] libavcodec/version.h
    • [DH] libavfilter/Makefile
    • [DH] libavfilter/allfilters.c
    • [DH] libavfilter/vf_bwdif_cuda.c
    • [DH] libavfilter/vf_bwdif_cuda.cu

  • avformat/mov : avss box should be AV_CODEC_ID_CAVS

    7 juillet 2023, par Zhao Zhili
    avformat/mov : avss box should be AV_CODEC_ID_CAVS

    I cannot find the spec, but according to the original commit
    
d4fdba0df71, it's CAVS. e571305a714 changed it to AVS by
    
accident. Ten years on, nothing happened. We still have the
    
sample [1], however, since there is no cavs_mp4tofoobar bsf, the
    
cavs decoder doesn't work. I don't know if there is any use case.
    

    [1] https://samples.ffmpeg.org/AVS/AVSFileFormat/AVSFileFormat.mp4
    

    Signed-off-by : Zhao Zhili <zhilizhao@tencent.com>
    • [DH] libavformat/mov.c

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