• Fiona Glaser's avatar
    CAVLC "trellis" · 26861893
    Fiona Glaser authored
    ~3-10% improved compression with CAVLC.
    --trellis is now a valid option with CAVLC.
    Perhaps more importantly, this means psy-trellis now works with CAVLC.
    This isn't a real trellis; it's actually just a simplified QNS.
    But it takes enough shortcuts that it's still roughly as fast as a trellis; just not quite optimal.
    Thus the name is a bit of a misnomer, but we're reusing the option name because it does the same thing.
    A real trellis would be better, but CAVLC is much harder to trellis than CABAC.
    I'm not aware of any published polynomial-time solutions that are significantly close to optimal.
macroblock.c 45.5 KB