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