diff options
Diffstat (limited to 'libvo/csputils.c')
-rw-r--r-- | libvo/csputils.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/libvo/csputils.c b/libvo/csputils.c index b894a2f869..b0255a00dc 100644 --- a/libvo/csputils.c +++ b/libvo/csputils.c @@ -361,3 +361,17 @@ void mp_invert_yuv2rgb(float out[3][4], float in[3][4]) out[1][3] = -(out[1][0] * m03 + out[1][1] * m13 + out[1][2] * m23); out[2][3] = -(out[2][0] * m03 + out[2][1] * m13 + out[2][2] * m23); } + +// Multiply the color in c with the given matrix. +// c is {R, G, B} or {Y, U, V} (depending on input/output and matrix). +void mp_map_color(float matrix[3][4], uint8_t c[3]) +{ + uint8_t in[3] = {c[0], c[1], c[2]}; + for (int i = 0; i < 3; i++) { + double val = matrix[i][3] * 255; + for (int x = 0; x < 3; x++) + val += matrix[i][x] * in[x]; + int ival = lrint(val); + c[i] = FFMIN(FFMAX(ival, 0), 255); + } +} |