VP8_MAX_PARTITION0_SIZE   46 third_party/libwebp/enc/frame.c #define PARTITION0_SIZE_LIMIT ((VP8_MAX_PARTITION0_SIZE - 2048ULL) << 11)
VP8_MAX_PARTITION0_SIZE  120 third_party/libwebp/enc/syntax.c   if (size0 >= VP8_MAX_PARTITION0_SIZE) {  // partition #0 is too big to fit