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  • 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.

  • Le plugin : Podcasts.

    14 juillet 2010, par

    Le problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
    Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
    Types de fichiers supportés dans les flux
    Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

Sur d’autres sites (5337)

  • Not able to play video file in Qt5 based Web browser on Linux ARM machine

    20 février 2016, par user3436349

    I am using Yocto Buildsystem to generate customized Linux Image with Qt5.4
    support in it for TI AM335x based ARM platform, here in Yocto I have selected
    components those are required for Qt5 based Webbrowser so as to play HTML5 audio
    and video files such as :
    - qtmultimedia
    - gstreamer (1.0)
    - qtscript
    - qtwebsockets
    - qtimageformats
    - libgles-omap3
    - lighttpd
    - gst-ffmpeg
    - gst-fluendo-mp3
    - gstreamer (0.10)

    Here after building the final image. I found that there are
    both gstreamer and gstreamer-1.0 directories in /usr/lib, also the
    required ffmpeg libs are located in /usr/lib/gstreamer directory.
    But I suspect the webkit by default links to /usr/lib/gstreamer-1.0
    directory and hence cannot find required libs.

    When I tried the manually copy the ffmepg related libs in /usr/lib/gstreamer-1.0
    directory from /usr/lib/gstreamer, then I got the libav related version error.

    Please guide me regarding who to configure webkit or webcore .bb file so that
    it links to both the gstreamer directories in /usr/lib and can thus play
    HTML5 audio and video files in qt5 based web-browser.

  • FFmpeg Question : Proper Format to use when no transition is being used ?

    23 juin 2021, par HHH-Messenger

    I can NOT fine any examples so can someone point me in the right direction please.
I have many images with to short duration time to add transitions, and would like to know what the proper syntax and format is, for a text file ?
Would only the images with transitions be indexed, or all of them ?

    


    Also if my files are located in the directory C :\temp\ what does the text file look like below ?

    


    $ ffmpeg \
    
-loop 1 -t 1.4 -i 001.jpg \ (no fade in or out)
    
-loop 1 -t 1.65 -i 002.jpg \ (no fade in or out)
    
-loop 1 -t 1.9 -i 003.jpg \ (no fade in or out)
    
-loop 1 -t 2.6 -i 004.jpg \ (with fade out .500)
    
-loop 1 -t 2.35 -i 005.jpg \ (with fade in .500)
    
-loop 1 -t 1.4 -i 006.jpg \ (no fade in or out)
    
-filter_complex \
    
"[0:v]fade=t=out:st=0:d=0[v0] ; \
    
[1:v]fade=t=in:st=0:d=0,fade=t=out:st=0:d=0[v1] ; \
    
[2:v]fade=t=in:st=0:d=0,fade=t=out:st=0:d=0[v2] ; \
    
[3:v]fade=t=in:st=0:d=0,fade=t=out:st=2.5:d=.5[v3] ; \
    
[4:v]fade=t=in:st=1.85:d=.5,fade=t=out:st=0:d=0[v4] ; \
    
[5:v]fade=t=in:st=0:d=0,fade=t=out:st=0:d=0[v5] ; \
    
[v0][v1][v2][v3][v4][v5]concat=n=6:v=1:a=0,format=yuv420p[v]" -map "[v]" -map 6:a -shortest output7.mp4

    


    Here is a common example : ALL IMAGES HAVE EFFECTS ADDED, PLEASE GIVE AN EXAMPLE WITH SOME HAVING EFFECTS AND SOME NOT HAVING EFFECTS ADDED.

    


    ffmpeg \
    
-t 5 -i 1.jpg
    
-t 5 -i 2.jpg
    
-t 5 -i 3.jpg
    
-filter_complex
    
"[0:v]zoompan=z='if(lte(zoom,1.0),1.5,max(1.001,zoom-.0015))':d=125,fade=t=out:st=4:d=1[v0] ;
    
[1:v]zoompan=z='if(lte(zoom,1.0),1.5,max(1.001,zoom-.0015))':d=125,fade=t=in:st=0:d=1,fade=t=out:st=4:d=1[v1] ;
    
[2:v]zoompan=z='if(lte(zoom,1.0),1.5,max(1.001,zoom-.0015))':d=125,fade=t=in:st=0:d=1,fade=t=out:st=4:d=1[v2] ;
    
[v0][v1][v2][concat=n=4:v=1:a=0,format=yuv420p[v]" -map "[v]" -s "800x450" -t 40 ./out_fade.mp4

    


  • vda : Make output CVPixelBuffer format configurable

    10 mai 2015, par Stefano Pigozzi
    vda : Make output CVPixelBuffer format configurable

    This is useful for client programs to ask for nv12 surfaces instead of the
    
current default (uyvy), since those are more efficient to decode to.
    

    Signed-off-by : Luca Barbato <lu_zero@gentoo.org>
    • [DBH] doc/APIchanges
    • [DBH] libavcodec/vda.c
    • [DBH] libavcodec/vda.h
    • [DBH] libavcodec/vda_h264.c
    • [DBH] libavcodec/version.h

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