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  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • 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 (...)

  • 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.

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  • FFMPEG Video to still images and back to video loss less

    4 novembre 2012, par Rigoni

    I'm trying to extract image from an uncompressed AVI video using ffmpeg with the command :

        ffmpeg -i sorce.avi -f image2 -pix_fmt bgr24 images/%1d.bmp

    All is ok, but now I need to revert these images back to a video file.
    I'm trying using this command :

        ffmpeg -f image2 -r 24 -i marked/%1d.bmp -y -vcodec ffv1 -pix_fmt bgr24 test.avi

    But, the output video is compressed and with bad quality.

    Is there any way to extract the images in RGB format and than back to a lossless video ?

    I also tryed to use -vcodec rawvideo, but the quality still bad.

    Best regards.

  • avformat/iamfdec : swap back and side streams if both are present

    30 décembre 2024, par James Almer
    avformat/iamfdec : swap back and side streams if both are present

    Layouts with both pairs (7.1, 7.1.2, etc) in IAMF that follow the definition in
    
ITU-R BS.2051-3 for Systems I and J also follow its ordering. This means side
    
comes before back, which is the inverse of how it's defined in AVChannel.
    

    To workaround this without having to use custom order channel layouts, swap the
    
stream ids in the input IAMF structure, so packets for one are mapped to the
    
other.
    

    Signed-off-by : James Almer <jamrial@gmail.com>
    • [DH] libavformat/iamfdec.c
    • [DH] libavformat/version.h
    • [DH] tests/ref/fate/iamf-7_1_4

  • Revision e39ecfaa98 : Preliminary code for variance based paritioning Brings back most of Jim's previ

    4 mars 2014, par Deb Mukherjee

    Changed Paths :
     Modify /vp9/encoder/vp9_encodeframe.c


     Modify /vp9/encoder/vp9_mcomp.c


     Modify /vp9/encoder/vp9_onyx_if.c


     Modify /vp9/encoder/vp9_pickmode.c



    Preliminary code for variance based paritioning

    Brings back most of Jim's previous patch for choosing
    partitioning based on variance while making it compatible
    with the current state of the code. Also adds a
    nonrd_use_partition() function to recursively encode for any
    arbitrary sb_type decisions within a 64x64 block ; and
    includes some refactoring.

    Currently, when the VAR_BASED_PARTITIONING mode is turned on
    for speed 7, there is a 10+% speed-up observed.

    Experiments/improvements with this new partitioning method
    will be conducted subsequently.

    Change-Id : Ie6f43bfbde30583e941f450bf07c3b48828c9571

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