BY 117 libswscale/rgb2rgb.c #define BY ((int)( 0.098 * (1 << RGB2YUV_SHIFT) + 0.5)) BY 867 libswscale/swscale.c #define BY ( (int) (0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) BY 82 libswscale/x86/rgb2rgb.c #define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))