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/*
* Copyright 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file hdr_metadata.h
*/
#ifndef ANDROID_HDR_METADATA_H
#define ANDROID_HDR_METADATA_H
#include <inttypes.h>
#include <sys/cdefs.h>
__BEGIN_DECLS
/**
* These structures are used to define the display's capabilities for HDR content.
* They can be used to better tone map content to user's display.
*/
/**
* HDR metadata standards that are supported by Android.
*/
enum AHdrMetadataType : uint32_t {
HDR10_SMPTE2086 = 1,
HDR10_CTA861_3 = 2,
HDR10PLUS_SEI = 3,
};
/**
* Color is defined in CIE XYZ coordinates.
*/
struct AColor_xy {
float x;
float y;
};
/**
* SMPTE ST 2086 "Mastering Display Color Volume" static metadata
*/
struct AHdrMetadata_smpte2086 {
struct AColor_xy displayPrimaryRed;
struct AColor_xy displayPrimaryGreen;
struct AColor_xy displayPrimaryBlue;
struct AColor_xy whitePoint;
float maxLuminance;
float minLuminance;
};
/**
* CTA 861.3 "HDR Static Metadata Extension" static metadata
*/
struct AHdrMetadata_cta861_3 {
float maxContentLightLevel;
float maxFrameAverageLightLevel;
};
__END_DECLS
#endif // ANDROID_HDR_METADATA_H
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