I16DC16           336 3rdparty/libwebp/dsp/enc.c   DCMode(I16DC16 + dst, left, top, 16, 16, 5);
I16DC16           361 3rdparty/libwebp/enc/quant.c const int VP8I16ModeOffsets[4] = { I16DC16, I16TM16, I16VE16, I16HE16 };