ref: 8e8e2d11bfb2f6dd90051b2ca897190fe99a0fbd
dir: /third_party/libwebm/common/hdr_util.h/
// Copyright (c) 2016 The WebM project authors. All Rights Reserved. // // Use of this source code is governed by a BSD-style license // that can be found in the LICENSE file in the root of the source // tree. An additional intellectual property rights grant can be found // in the file PATENTS. All contributing project authors may // be found in the AUTHORS file in the root of the source tree. #ifndef LIBWEBM_COMMON_HDR_UTIL_H_ #define LIBWEBM_COMMON_HDR_UTIL_H_ #include <stdint.h> #include <memory> #include "mkvmuxer/mkvmuxer.h" namespace mkvparser { struct Colour; struct MasteringMetadata; struct PrimaryChromaticity; } // namespace mkvparser namespace libwebm { // Utility types and functions for working with the Colour element and its // children. Copiers return true upon success. Presence functions return true // when the specified element is present. // TODO(tomfinegan): These should be moved to libwebm_utils once c++11 is // required by libwebm. // Features of the VP9 codec that may be set in the CodecPrivate of a VP9 video // stream. A value of kValueNotPresent represents that the value was not set in // the CodecPrivate. struct Vp9CodecFeatures { static const int kValueNotPresent; Vp9CodecFeatures() : profile(kValueNotPresent), level(kValueNotPresent), bit_depth(kValueNotPresent), chroma_subsampling(kValueNotPresent) {} ~Vp9CodecFeatures() {} int profile; int level; int bit_depth; int chroma_subsampling; }; typedef std::auto_ptr<mkvmuxer::PrimaryChromaticity> PrimaryChromaticityPtr; bool CopyPrimaryChromaticity(const mkvparser::PrimaryChromaticity& parser_pc, PrimaryChromaticityPtr* muxer_pc); bool MasteringMetadataValuePresent(double value); bool CopyMasteringMetadata(const mkvparser::MasteringMetadata& parser_mm, mkvmuxer::MasteringMetadata* muxer_mm); bool ColourValuePresent(long long value); bool CopyColour(const mkvparser::Colour& parser_colour, mkvmuxer::Colour* muxer_colour); // Returns true if |features| is set to one or more valid values. bool ParseVpxCodecPrivate(const uint8_t* private_data, int32_t length, Vp9CodecFeatures* features); } // namespace libwebm #endif // LIBWEBM_COMMON_HDR_UTIL_H_