WEBP_FILTER_TYPE   37 3rdparty/libwebp/dec/alpha.c   WEBP_FILTER_TYPE filter;
WEBP_FILTER_TYPE  335 3rdparty/libwebp/enc/alpha.c   const WEBP_FILTER_TYPE filter =
WEBP_FILTER_TYPE  164 3rdparty/libwebp/utils/filters.c WEBP_FILTER_TYPE EstimateBestFilter(const uint8_t* data,
WEBP_FILTER_TYPE  189 3rdparty/libwebp/utils/filters.c     WEBP_FILTER_TYPE filter, best_filter = WEBP_FILTER_NONE;
WEBP_FILTER_TYPE   50 3rdparty/libwebp/utils/filters.h extern WEBP_FILTER_TYPE EstimateBestFilter(const uint8_t* data,