GET_PIXEL_COMP    485 libavcodec/webp.c             int p0 = GET_PIXEL_COMP(img->frame, x, y, 1);
GET_PIXEL_COMP    486 libavcodec/webp.c             int p1 = GET_PIXEL_COMP(img->frame, x, y, 2);
GET_PIXEL_COMP    572 libavcodec/webp.c         int g0      = GET_PIXEL_COMP(gimg->frame, group_x, group_y, 1);
GET_PIXEL_COMP    573 libavcodec/webp.c         int g1      = GET_PIXEL_COMP(gimg->frame, group_x, group_y, 2);
GET_PIXEL_COMP    965 libavcodec/webp.c             enum PredictionMode m = GET_PIXEL_COMP(pimg->frame, tx, ty, 2);