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