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74 lines
1.7 KiB
74 lines
1.7 KiB
/* |
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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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