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/*
* Copyright (c) 2016, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its contributors may be used to
* endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __COLOR_METADATA_H__
#define __COLOR_METADATA_H__
#ifdef __cplusplus
extern "C" {
#else
#include <stdbool.h>
#endif
typedef enum ColorRange {
Range_Limited = 0,
Range_Full = 1,
Range_Max = 0xff,
} ColorRange;
// The following values matches the HEVC spec
typedef enum ColorPrimaries {
// Unused = 0;
ColorPrimaries_BT709_5 = 1, // ITU-R BT.709-5 or equivalent
/* Unspecified = 2, Reserved = 3*/
ColorPrimaries_BT470_6M = 4, // ITU-R BT.470-6 System M or equivalent
ColorPrimaries_BT601_6_625 = 5, // ITU-R BT.601-6 625 or equivalent
ColorPrimaries_BT601_6_525 = 6, // ITU-R BT.601-6 525 or equivalent
ColorPrimaries_SMPTE_240M = 7, // SMPTE_240M
ColorPrimaries_GenericFilm = 8, // Generic Film
ColorPrimaries_BT2020 = 9, // ITU-R BT.2020 or equivalent
ColorPrimaries_SMPTE_ST428 = 10, // SMPTE_240M
ColorPrimaries_AdobeRGB = 11,
ColorPrimaries_DCIP3 = 12,
ColorPrimaries_EBU3213 = 22,
ColorPrimaries_Max = 0xff,
} ColorPrimaries;
typedef enum GammaTransfer {
// Unused = 0;
Transfer_sRGB = 1, // ITR-BT.709-5
/* Unspecified = 2, Reserved = 3 */
Transfer_Gamma2_2 = 4,
Transfer_Gamma2_8 = 5,
Transfer_SMPTE_170M = 6, // BT.601-6 525 or 625
Transfer_SMPTE_240M = 7, // SMPTE_240M
Transfer_Linear = 8,
Transfer_Log = 9,
Transfer_Log_Sqrt = 10,
Transfer_XvYCC = 11, // IEC 61966-2-4
Transfer_BT1361 = 12, // Rec.ITU-R BT.1361 extended gamut
Transfer_sYCC = 13, // IEC 61966-2-1 sRGB or sYCC
Transfer_BT2020_2_1 = 14, // Rec. ITU-R BT.2020-2 (same as the values 1, 6, and 15)
Transfer_BT2020_2_2 = 15, // Rec. ITU-R BT.2020-2 (same as the values 1, 6, and 14)
Transfer_SMPTE_ST2084 = 16, // 2084
// transfers unlikely to be required by Android
Transfer_ST_428 = 17, // SMPTE ST 428-1
Transfer_HLG = 18, // ARIB STD-B67
Transfer_Max = 0xff,
} GammaTransfer;
typedef enum MatrixCoEfficients {
MatrixCoEff_Identity = 0,
MatrixCoEff_BT709_5 = 1,
/* Unspecified = 2, Reserved = 3 */
MatrixCoeff_FCC_73_682 = 4,
MatrixCoEff_BT601_6_625 = 5,
MatrixCoEff_BT601_6_525 = 6,
MatrixCoEff_SMPTE240M = 7, // used with 601_525_Unadjusted
MatrixCoEff_YCgCo = 8,
MatrixCoEff_BT2020 = 9,
MatrixCoEff_BT2020Constant = 10,
MatrixCoEff_BT601_6_Unadjusted = 11, // Used with BT601_625(KR=0.222, KB=0.071)
MatrixCoEff_DCIP3 = 12,
MatrixCoEff_Chroma_NonConstant = 13,
MatrixCoEff_Max = 0xff,
} MatrixCoEfficients;
typedef struct Primaries {
uint32_t rgbPrimaries[3][2]; // unit 1/50000;
uint32_t whitePoint[2]; // unit 1/50000;
} Primaries;
typedef struct MasteringDisplay {
bool colorVolumeSEIEnabled;
Primaries primaries;
uint32_t maxDisplayLuminance; // unit: cd/m^2.
uint32_t minDisplayLuminance; // unit: 1/10000 cd/m^2.
} MasteringDisplay;
typedef struct ContentLightLevel {
bool lightLevelSEIEnabled;
uint32_t maxContentLightLevel; // unit: cd/m^2.
uint32_t minPicAverageLightLevel; // unit: 1/10000 cd/m^2.
} ContentLightLevel;
typedef struct ColorRemappingInfo {
bool criEnabled;
uint32_t crId;
uint32_t crCancelFlag;
uint32_t crPersistenceFlag;
uint32_t crVideoSignalInfoPresentFlag;
uint32_t crRange;
ColorPrimaries crPrimaries;
GammaTransfer crTransferFunction;
MatrixCoEfficients crMatrixCoefficients;
uint32_t crInputBitDepth;
uint32_t crOutputBitDepth;
uint32_t crPreLutNumValMinusOne[3];
uint32_t crPreLutCodedValue[3*33];
uint32_t crPreLutTargetValue[3*33];
uint32_t crMatrixPresentFlag;
uint32_t crLog2MatrixDenom;
int32_t crCoefficients[3*3];
uint32_t crPostLutNumValMinusOne[3];
uint32_t crPostLutCodedValue[3*33];
uint32_t crPostLutTargetValue[3*33];
} ColorRemappingInfo;
typedef struct ColorMetaData {
// Default values based on sRGB, needs to be overridden in gralloc
// based on the format and size.
ColorPrimaries colorPrimaries;
ColorRange range;
GammaTransfer transfer;
MatrixCoEfficients matrixCoefficients;
MasteringDisplay masteringDisplayInfo;
ContentLightLevel contentLightLevel;
ColorRemappingInfo cRI;
} ColorMetaData;
typedef struct Color10Bit {
uint32_t R: 10;
uint32_t G: 10;
uint32_t B: 10;
uint32_t A: 2;
} Color10Bit;
typedef struct Lut3d {
uint16_t dim; // dimension of each side of LUT cube (ex: 13, 17)in lutEntries
uint16_t gridSize; // number of elements in the gridEntries
/* Matrix ordering convension
for (b = 0; b < dim; b++) {
for (g = 0; g < dim; g++) {
for (r = 0; r < dim; r++) {
read/write [mR mG mB] associated w/ 3DLUT[r][g][b] to/from file
}
}
} */
Color10Bit *lutEntries;
bool validLutEntries; // Indicates if entries are valid and can be used.
/*
The grid is a 1D LUT for each of the R,G,B channels that can be
used to apply an independent nonlinear transformation to each
channel before it is used as a coordinate for addressing
the uniform 3D LUT. This effectively creates a non-uniformly
sampled 3D LUT. This is useful for having independent control
of the sampling grid density along each dimension for greater
precision in spite of having a relatively small number of samples.i
*/
Color10Bit *gridEntries;
bool validGridEntries; // Indicates if entries are valid and can be used.
} Lut3d;
#ifdef __cplusplus
}
#endif
#endif // __COLOR_METADATA_H__
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