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| author | furongzh <furong.zhang@intel.com> | 2019-06-17 00:31:38 -0400 |
|---|---|---|
| committer | XinfengZhang <carl.zhang@intel.com> | 2019-07-08 11:24:15 +0800 |
| commit | 7bbddffddb4a15f0163f89d5d87860866e850cde (patch) | |
| tree | 9e1ee775ba45a4b2670a5082f3f80f3f14c19dce | |
| parent | d9d7d198192ec29548d64dde748cbf75f3908e1b (diff) | |
| download | libva-7bbddffddb4a15f0163f89d5d87860866e850cde.tar.gz | |
Add comments for colour primaries and transfer characteristics in VAProcColorProperties.
For colour_primaries and transfer_characteristics, recommend app to define in enum or macro definition according to Spec.
In the comments, we just list the typical value for the reference.
Signed-off-by: furongzh <furong.zhang@intel.com>
| -rwxr-xr-x | va/va_vpp.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/va/va_vpp.h b/va/va_vpp.h index e38d221..bdf1f7e 100755 --- a/va/va_vpp.h +++ b/va/va_vpp.h @@ -687,12 +687,53 @@ typedef struct _VAProcColorProperties { * * See ISO/IEC 23001-8 or ITU H.273, section 8.1 and table 2. * Only used if the color standard in use is \c VAColorStandardExplicit. + * Below list the typical colour primaries for the reference. + * --------------------------------------------------------------------------------- + * | Value | Primaries | Informative Remark | + * -------------------------------------------------------------------------------- + * | 1 |primary x y |Rec.ITU-R BT.709-5 | + * | |green 0.300 0.600 |IEC 61966-2-1(sRGB or sYCC) | + * | |blue 0.150 0.060 | | + * | |red 0.640 0.330 | | + * | |whiteD65 0.3127 0.3290 | | + * --------------------------------------------------------------------------------- + * | 6 |primary x y |Rec.ITU-R BT.601-6 525 | + * | |green 0.310 0.595 | | + * | |blue 0.155 0.070 | | + * | |red 0.630 0.340 | | + * | |whiteD65 0.3127 0.3290 | | + * --------------------------------------------------------------------------------- + * | 9 |primary x y |Rec.ITU-R BT.2020 | + * | |green 0.170 0.797 | | + * | |blue 0.131 0.046 | | + * | |red 0.708 0.292 | | + * | |whiteD65 0.3127 0.3290 | | + * --------------------------------------------------------------------------------- */ uint8_t colour_primaries; /** Transfer characteristics. * * See ISO/IEC 23001-8 or ITU H.273, section 8.2 and table 3. * Only used if the color standard in use is \c VAColorStandardExplicit. + * Below list the typical transfer characteristics for the reference. + * ----------------------------------------------------------- + * | Value | Informative Remark | + * ----------------------------------------------------------- + * | 1 |Rec.ITU-R BT.709-5 | + * | |colour gamut system | + * ----------------------------------------------------------- + * | 4 |Assumed display gamma 2.2 | + * ----------------------------------------------------------- + * | 6 |Rec.ITU-R BT.601-6 525 or 625 | + * ----------------------------------------------------------- + * | 8 |Linear transfer characteristics | + * ----------------------------------------------------------- + * | 13 |IEC 61966-2-1(sRGB or sYCC) | + * ----------------------------------------------------------- + * | 14,15 |Rec.ITU-R BT.2020 | + * ----------------------------------------------------------- + * | 16 |SMPTE ST 2084 for 10,12,14 and 16bit system | + * ----------------------------------------------------------- */ uint8_t transfer_characteristics; /** Matrix coefficients. |