55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
// Copyright 2015 Google LLC. 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_VP9_PARSER_H_
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#define PACKAGER_MEDIA_CODECS_VP9_PARSER_H_
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#include <stdint.h>
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#include <stdlib.h>
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#include "packager/macros.h"
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#include "packager/media/codecs/vpx_parser.h"
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namespace shaka {
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namespace media {
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/// Class to parse a vp9 bit stream.
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class VP9Parser : public VPxParser {
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public:
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VP9Parser();
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~VP9Parser() override;
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/// Parse @a data with size @a data_size.
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/// @param data_size Size of the sample in bytes. Note that it should be a
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/// full sample.
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/// @param[out] vpx_frames points to the list of VPx frames for the current
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/// sample on success. Cannot be NULL.
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/// @return true on success, false otherwise.
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bool Parse(const uint8_t* data,
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size_t data_size,
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std::vector<VPxFrameInfo>* vpx_frames) override;
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/// A convenient utility function to check whether the frame is a keyframe.
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/// Note that this function does not do a full parse of the frame header, so
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/// should be more efficient than Parse().
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/// @param data_size Size of the sample in bytes.
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/// @return true if it is, false if it is not or if there is parsing error.
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static bool IsKeyframe(const uint8_t* data, size_t data_size);
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private:
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// Keep track of the current width and height. Note that they may change from
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// frame to frame.
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uint32_t width_;
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uint32_t height_;
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DISALLOW_COPY_AND_ASSIGN(VP9Parser);
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};
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} // namespace media
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} // namespace shaka
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#endif // PACKAGER_MEDIA_CODECS_VP9_PARSER_H_
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