static void fill_gv_table(int table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize, const int inc) { int i; int off = -(inc >> 9); for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) { int64_t cb = av_clip(i-YUVRGB_TABLE_HEADROOM, 0, 255)*inc; table[i] = elemsize * (off + (cb >> 16)); } }