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| author | Matt A. Tobin <email@mattatobin.com> | 2022-06-07 20:20:19 -0500 |
|---|---|---|
| committer | Matt A. Tobin <email@mattatobin.com> | 2022-06-07 20:20:19 -0500 |
| commit | 878ab758d5d4c1ef7badf2bc20ebc7c67dc2165b (patch) | |
| tree | 3683d6df35e3618c0e7b456de7c749ca4c8c21a6 /libs/ffvpx/libavutil/colorspace.h | |
| parent | a621951327b0c19c0c24dfd9fd973f7bd13ae68f (diff) | |
| parent | cfb9884423faf741de03c5fcc72bf9ac8c6ada4d (diff) | |
| download | aura-central-878ab758d5d4c1ef7badf2bc20ebc7c67dc2165b.tar.gz | |
Merge branch 'TRUNK' into ARE-5.0
Diffstat (limited to 'libs/ffvpx/libavutil/colorspace.h')
| -rw-r--r-- | libs/ffvpx/libavutil/colorspace.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/libs/ffvpx/libavutil/colorspace.h b/libs/ffvpx/libavutil/colorspace.h index b6dba2c95..ef6f6107d 100644 --- a/libs/ffvpx/libavutil/colorspace.h +++ b/libs/ffvpx/libavutil/colorspace.h @@ -107,4 +107,44 @@ static inline int C_JPEG_TO_CCIR(int y) { (((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \ FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) +#define RGB_TO_Y_JPEG(r, g, b) \ +(FFMIN((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \ + FIX(0.11400) * (b) + (ONE_HALF)) >> SCALEBITS, 255)) + +#define RGB_TO_U_JPEG(r1, g1, b1)\ +(((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \ + FIX(0.50000) * b1 + (ONE_HALF) - 1) >> (SCALEBITS)) + 128) + +#define RGB_TO_V_JPEG(r1, g1, b1)\ +(((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \ + FIX(0.08131) * b1 + (ONE_HALF) - 1) >> (SCALEBITS)) + 128) + +// Conversion macros for 8-bit RGB to YUV +// Derived from ITU-R BT.709-6 (06/2015) Item 3.5 +// https://www.itu.int/rec/R-REC-BT.709-6-201506-I/en + +#define RGB_TO_Y_BT709(r, g, b) \ +((FIX(0.21260*219.0/255.0) * (r) + FIX(0.71520*219.0/255.0) * (g) + \ + FIX(0.07220*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS) + +#define RGB_TO_U_BT709(r1, g1, b1, shift)\ +(((- FIX(0.11457*224.0/255.0) * r1 - FIX(0.38543*224.0/255.0) * g1 + \ + FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) + +#define RGB_TO_V_BT709(r1, g1, b1, shift)\ +(((FIX(0.50000*224.0/255.0) * r1 - FIX(0.45415*224.0/255.0) * g1 - \ + FIX(0.04585*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) + +#define RGB_TO_Y_BT709_FULL(r, g, b) \ +(FFMIN((FIX(0.21260) * (r) + FIX(0.71520) * (g) + \ + FIX(0.07220) * (b) + (ONE_HALF)) >> SCALEBITS, 255)) + +#define RGB_TO_U_BT709_FULL(r1, g1, b1)\ +(((- FIX(0.11457) * r1 - FIX(0.38543) * g1 + \ + FIX(0.50000) * b1 + (ONE_HALF) - 1) >> (SCALEBITS)) + 128) + +#define RGB_TO_V_BT709_FULL(r1, g1, b1)\ +(((FIX(0.50000) * r1 - FIX(0.45415) * g1 - \ + FIX(0.04585) * b1 + (ONE_HALF) - 1) >> (SCALEBITS)) + 128) + #endif /* AVUTIL_COLORSPACE_H */ |