NUM_TYPES          67 3rdparty/libwebp/dec/vp8i.h        NUM_TYPES = 4,
NUM_TYPES          56 3rdparty/libwebp/enc/vp8enci.h        NUM_TYPES = 4,   // 0: i16-AC,  1: i16-DC,  2:chroma-AC,  3:i4-AC