84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
// Copyright 2016 Google Inc. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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#ifndef PACKAGER_MEDIA_CODECS_VIDEO_SLICE_HEADER_PARSER_H_
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#define PACKAGER_MEDIA_CODECS_VIDEO_SLICE_HEADER_PARSER_H_
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#include <vector>
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#include "packager/media/base/macros.h"
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#include "packager/media/codecs/h264_parser.h"
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#include "packager/media/codecs/h265_parser.h"
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namespace shaka {
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namespace media {
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class VideoSliceHeaderParser {
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public:
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VideoSliceHeaderParser() {}
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virtual ~VideoSliceHeaderParser() {}
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/// Adds decoder configuration from the given data. This must be called
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/// once before any calls to GetHeaderSize.
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virtual bool Initialize(
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const std::vector<uint8_t>& decoder_configuration) = 0;
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/// Process NAL unit, in particular parameter set NAL units. Non parameter
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/// set NAL unit is allowed but the function always returns true.
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/// Returns false if there is any problem processing the parameter set NAL
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/// unit.
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/// This function is needed to handle parameter set NAL units not in decoder
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/// configuration record, i.e. in the samples.
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virtual bool ProcessNalu(const Nalu& nalu) = 0;
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/// Gets the header size of the given NALU. Returns < 0 on error.
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virtual int64_t GetHeaderSize(const Nalu& nalu) = 0;
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private:
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DISALLOW_COPY_AND_ASSIGN(VideoSliceHeaderParser);
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};
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class H264VideoSliceHeaderParser : public VideoSliceHeaderParser {
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public:
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H264VideoSliceHeaderParser();
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~H264VideoSliceHeaderParser() override;
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/// @name VideoSliceHeaderParser implementation overrides.
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/// @{
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bool Initialize(const std::vector<uint8_t>& decoder_configuration) override;
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bool ProcessNalu(const Nalu& nalu) override;
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int64_t GetHeaderSize(const Nalu& nalu) override;
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/// @}
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private:
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H264Parser parser_;
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DISALLOW_COPY_AND_ASSIGN(H264VideoSliceHeaderParser);
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};
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class H265VideoSliceHeaderParser : public VideoSliceHeaderParser {
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public:
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H265VideoSliceHeaderParser();
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~H265VideoSliceHeaderParser() override;
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/// @name VideoSliceHeaderParser implementation overrides.
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/// @{
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bool Initialize(const std::vector<uint8_t>& decoder_configuration) override;
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bool ProcessNalu(const Nalu& nalu) override;
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int64_t GetHeaderSize(const Nalu& nalu) override;
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/// @}
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private:
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H265Parser parser_;
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DISALLOW_COPY_AND_ASSIGN(H265VideoSliceHeaderParser);
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};
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} // namespace media
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} // namespace shaka
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#endif // PACKAGER_MEDIA_CODECS_VIDEO_SLICE_HEADER_PARSER_H_
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