82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef PACKAGER_MEDIA_FORMATS_WEBM_WEBM_VIDEO_CLIENT_H_
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#define PACKAGER_MEDIA_FORMATS_WEBM_WEBM_VIDEO_CLIENT_H_
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#include <memory>
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#include <string>
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#include <vector>
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#include "packager/media/base/video_stream_info.h"
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#include "packager/media/codecs/vp_codec_configuration_record.h"
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#include "packager/media/formats/webm/webm_parser.h"
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namespace shaka {
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namespace media {
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class VideoDecoderConfig;
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/// Helper class used to parse a Video element inside a TrackEntry element.
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class WebMVideoClient : public WebMParserClient {
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public:
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WebMVideoClient();
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~WebMVideoClient() override;
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/// Reset this object's state so it can process a new video track element.
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void Reset();
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/// Create a VideoStreamInfo with the data in |track_num|, |codec_id|,
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/// |codec_private|, |is_encrypted| and the fields parsed from the last video
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/// track element this object was used to parse.
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/// @return A VideoStreamInfo if successful.
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/// @return An empty pointer if there was unexpected values in the
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/// provided parameters or video track element fields.
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std::shared_ptr<VideoStreamInfo> GetVideoStreamInfo(
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int64_t track_num,
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const std::string& codec_id,
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const std::vector<uint8_t>& codec_private,
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bool is_encrypted);
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/// Extracts VPCodecConfigurationRecord parsed from codec private data and
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/// Colour element.
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VPCodecConfigurationRecord GetVpCodecConfig(
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const std::vector<uint8_t>& codec_private);
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private:
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// WebMParserClient implementation.
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WebMParserClient* OnListStart(int id) override;
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bool OnListEnd(int id) override;
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bool OnUInt(int id, int64_t val) override;
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bool OnBinary(int id, const uint8_t* data, int size) override;
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bool OnFloat(int id, double val) override;
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int64_t pixel_width_ = -1;
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int64_t pixel_height_ = -1;
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int64_t crop_bottom_ = -1;
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int64_t crop_top_ = -1;
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int64_t crop_left_ = -1;
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int64_t crop_right_ = -1;
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int64_t display_width_ = -1;
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int64_t display_height_ = -1;
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int64_t display_unit_ = -1;
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int64_t alpha_mode_ = -1;
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int64_t matrix_coefficients_ = -1;
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int64_t bits_per_channel_ = -1;
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int64_t chroma_subsampling_horz_ = -1;
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int64_t chroma_subsampling_vert_ = -1;
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int64_t chroma_siting_horz_ = -1;
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int64_t chroma_siting_vert_ = -1;
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int64_t color_range_ = -1;
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int64_t transfer_characteristics_ = -1;
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int64_t color_primaries_ = -1;
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DISALLOW_COPY_AND_ASSIGN(WebMVideoClient);
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};
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} // namespace media
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} // namespace shaka
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#endif // PACKAGER_MEDIA_FORMATS_WEBM_WEBM_VIDEO_CLIENT_H_
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