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Autres articles (55)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • Submit enhancements and plugins

    13 avril 2011

    If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
    You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone.

Sur d’autres sites (9542)

  • Revision 61da0870b9 : Merge "Add a test vector for loopfilter"

    5 décembre 2013, par Jingning Han

    Merge "Add a test vector for loopfilter"

  • Revision 099d27432b : Merge "Add a noise test vector"

    26 novembre 2013, par Yunqing Wang

    Merge "Add a noise test vector"

  • can we set a bigger block size to the motion vector in ffmpeg

    16 août 2022, par M.Akyuzlu

    In the FFmpeg v5.0 function add_mb at line 1562 in mpegvideo.c file

    


    static int add_mb(AVMotionVector *mb, uint32_t mb_type,
                    int dst_x, int dst_y,
                    int motion_x, int motion_y, int motion_scale,
                    int direction)
{
    mb->w = IS_8X8(mb_type) || IS_8X16(mb_type) ? 8 : 16;
    mb->h = IS_8X8(mb_type) || IS_16X8(mb_type) ? 8 : 16;
    mb->motion_x = motion_x;
    mb->motion_y = motion_y;
    mb->motion_scale = motion_scale;
    mb->dst_x = dst_x;
    mb->dst_y = dst_y;
    mb->src_x = dst_x + motion_x / motion_scale;
    mb->src_y = dst_y + motion_y / motion_scale;
    mb->source = direction ? 1 : -1;
    mb->flags = 0; // XXX: does mb_type contain extra information that could be exported here?
    return 1;
}    


    


    Depending on the MB_TYPE the block could take 8 or 16 pixels at one time so can we set the width and the height of the motion block to a bigger range in order to reduce the motion vector total length ?

    


    that could hurt the quality of the image but I'm ok with that.

    


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