diff options
Diffstat (limited to 'libavfilter/colorspace.c')
| -rw-r--r-- | libavfilter/colorspace.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libavfilter/colorspace.c b/libavfilter/colorspace.c index 19616e4f12..25e99f4759 100644 --- a/libavfilter/colorspace.c +++ b/libavfilter/colorspace.c @@ -138,6 +138,38 @@ const struct LumaCoefficients *ff_get_luma_coefficients(enum AVColorSpace csp) return coeffs; } +#define WP_D65 { 0.3127, 0.3290 } +#define WP_C { 0.3100, 0.3160 } +#define WP_DCI { 0.3140, 0.3510 } +#define WP_E { 1/3.0f, 1/3.0f } + +static const struct ColorPrimaries color_primaries[AVCOL_PRI_NB] = { + [AVCOL_PRI_BT709] = { WP_D65, { 0.640, 0.330, 0.300, 0.600, 0.150, 0.060 } }, + [AVCOL_PRI_BT470M] = { WP_C, { 0.670, 0.330, 0.210, 0.710, 0.140, 0.080 } }, + [AVCOL_PRI_BT470BG] = { WP_D65, { 0.640, 0.330, 0.290, 0.600, 0.150, 0.060 } }, + [AVCOL_PRI_SMPTE170M] = { WP_D65, { 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 } }, + [AVCOL_PRI_SMPTE240M] = { WP_D65, { 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 } }, + [AVCOL_PRI_SMPTE428] = { WP_E, { 0.735, 0.265, 0.274, 0.718, 0.167, 0.009 } }, + [AVCOL_PRI_SMPTE431] = { WP_DCI, { 0.680, 0.320, 0.265, 0.690, 0.150, 0.060 } }, + [AVCOL_PRI_SMPTE432] = { WP_D65, { 0.680, 0.320, 0.265, 0.690, 0.150, 0.060 } }, + [AVCOL_PRI_FILM] = { WP_C, { 0.681, 0.319, 0.243, 0.692, 0.145, 0.049 } }, + [AVCOL_PRI_BT2020] = { WP_D65, { 0.708, 0.292, 0.170, 0.797, 0.131, 0.046 } }, + [AVCOL_PRI_JEDEC_P22] = { WP_D65, { 0.630, 0.340, 0.295, 0.605, 0.155, 0.077 } }, +}; + +const struct ColorPrimaries *ff_get_color_primaries(enum AVColorPrimaries prm) +{ + const struct ColorPrimaries *p; + + if (prm >= AVCOL_PRI_NB) + return NULL; + p = &color_primaries[prm]; + if (!p->prim.xr) + return NULL; + + return p; +} + void ff_fill_rgb2yuv_table(const struct LumaCoefficients *coeffs, double rgb2yuv[3][3]) { |