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Autres articles (70)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

Sur d’autres sites (9604)

  • How to disable audio video sync on ffmpeg ?

    15 novembre 2020, par TESA
    ffmpeg  -re -loop 1 \       
        -i black.jpg \
        -f lavfi -i "amovie=audio.mp3:loop=0,asetpts=N/SR/TB" \
        -c:a aac \
        -b:a 128k \
        -vcodec libx264 \
        -pix_fmt yuv420p \
        -f flv rtmp://


    


    After first run of audio I get "Non-monotonous DTS in output stream 0:1 ; previous : 132188, current : 37575 ; changing to 132188."

    


    I would like to ignore audio video sync, completely. Not needed. Is there a way to do so.

    


  • vaapi_encode : Sync to input surface rather than output

    18 septembre 2016, par Mark Thompson
    vaapi_encode : Sync to input surface rather than output

    While outwardly bizarre, this change makes the behaviour consistent
    
with other VAAPI encoders which sync to the encode /input/ picture in
    
order to wait for /output/ from the encoder.  It is not harmful on
    
i965 (because synchronisation already happens in vaRenderPicture(),
    
so it has no effect there), and it allows the encoder to work on
    
mesa/gallium which assumes this behaviour.
    

    (cherry picked from commit 086e4b58b59ea3993107aa24d92bb962ec69667c)
    • [DH] libavcodec/vaapi_encode.c

  • Loseless FFMPEG compression that supports windows media player

    12 juin 2018, par nmr

    I am trying to create a movie file (avi, mp4, etc as long as it support windows media player) from a sequence of png files using ffmpeg.I am using C++ "System("ffmpeg command")" to create the movie files once I create the png files (this shouldn’t effect movie creation). I was able to create a .avi file using the following command,

    ffmpeg.exe -r 30 -i frame_%7d.png test1.avi

    Once you create the file it runs in windows media player but does not run in VLC. I have realized, it does lossy compression and the movie is not that high quality (quality decreases with frame rate). I want to have lossless compression (or no compression at all) but needs to be able to play in windows media player. So I tried the following commands,

    ffmpeg.exe -framerate 30 -i frame_%7d.png -codec copy test2.avi

    This file ran in VLC but didn’t run in windows media player. Then I tried put in "-pix_fmt yuv420p" but still couldn’t get it to run in windows media player.

    ffmpeg.exe -framerate 30 -pix_fmt yuv420p -i frame_%7d.png -codec copy test2.avi

    I have also tried using "ffv1" codec and it ran in VLC but not in windows media player

    ffmpeg.exe -i frame_%7d.png -c:v ffv1 -qscale:v 0 test4.avi

    So, how do I create a lossless movie file from a sequence of png files using ffmpeg that will run in windows media player ?

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