• Geza Lore's avatar
    Port large scale tile coding features from nextgen. · 490ba1ad
    Geza Lore authored
    If configured with --enable-ext-tile, the codec uses an alternative
    tile coding syntax in the bitstream. Changes include::
     - The maximum number of tile rows and columns is extended to 1024
       each.
     - The minimum tile width/height is 64 pixels (1 superblock).
     - A tile copy mode is added where a tile directly reuse the coded
       data of a previous tile
     - The meaning of the tile-columns and tile-rows codec parameters are
       overloaded to mean tile-width and tile-height in units of 64
       pixels.
     - All tiles should now be independent, including rows within the
       same columns, so large scale parallel, or independent decoding is
       possible.
     - vpxdec also gained the options to decode only a particular tile,
       tile row, or tile column.
    
    Changes without --enable-ext-tile:
     - All tiles should now be independent, including rows within the
       same columns, so large scale parallel, or independent decoding is
       possible.
     - vpxenc default tile configuration changed to use 1 tile column.
    
    Change-Id: I0cd08ad550967ac18622dae5e98ad23d581cb33e
    490ba1ad
segmentation.c 14.6 KB