109 lines
3.0 KiB
C
109 lines
3.0 KiB
C
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// Copyright (c) 2012 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 MEDIA_WEBM_WEBM_TRACKS_PARSER_H_
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#define MEDIA_WEBM_WEBM_TRACKS_PARSER_H_
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#include <map>
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#include <set>
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#include <string>
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#include <vector>
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#include "base/compiler_specific.h"
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#include "base/memory/scoped_ptr.h"
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#include "media/base/audio_decoder_config.h"
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#include "media/base/media_log.h"
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#include "media/base/text_track.h"
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#include "media/base/video_decoder_config.h"
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#include "media/webm/webm_audio_client.h"
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#include "media/webm/webm_content_encodings_client.h"
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#include "media/webm/webm_parser.h"
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#include "media/webm/webm_video_client.h"
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namespace media {
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// Parser for WebM Tracks element.
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class MEDIA_EXPORT WebMTracksParser : public WebMParserClient {
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public:
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explicit WebMTracksParser(const LogCB& log_cb, bool ignore_text_tracks);
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virtual ~WebMTracksParser();
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// Parses a WebM Tracks element in |buf|.
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//
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// Returns -1 if the parse fails.
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// Returns 0 if more data is needed.
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// Returns the number of bytes parsed on success.
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int Parse(const uint8* buf, int size);
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int64 audio_track_num() const { return audio_track_num_; }
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int64 video_track_num() const { return video_track_num_; }
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const std::set<int64>& ignored_tracks() const { return ignored_tracks_; }
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const std::string& audio_encryption_key_id() const {
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return audio_encryption_key_id_;
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}
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const AudioDecoderConfig& audio_decoder_config() {
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return audio_decoder_config_;
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}
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const std::string& video_encryption_key_id() const {
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return video_encryption_key_id_;
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}
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const VideoDecoderConfig& video_decoder_config() {
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return video_decoder_config_;
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}
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struct TextTrackInfo {
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TextKind kind;
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std::string name;
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std::string language;
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};
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typedef std::map<int64, TextTrackInfo> TextTracks;
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const TextTracks& text_tracks() const {
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return text_tracks_;
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}
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private:
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// WebMParserClient implementation.
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virtual WebMParserClient* OnListStart(int id) OVERRIDE;
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virtual bool OnListEnd(int id) OVERRIDE;
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virtual bool OnUInt(int id, int64 val) OVERRIDE;
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virtual bool OnFloat(int id, double val) OVERRIDE;
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virtual bool OnBinary(int id, const uint8* data, int size) OVERRIDE;
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virtual bool OnString(int id, const std::string& str) OVERRIDE;
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int64 track_type_;
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int64 track_num_;
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std::string track_name_;
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std::string track_language_;
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std::string codec_id_;
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std::vector<uint8> codec_private_;
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scoped_ptr<WebMContentEncodingsClient> track_content_encodings_client_;
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int64 audio_track_num_;
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int64 video_track_num_;
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bool ignore_text_tracks_;
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TextTracks text_tracks_;
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std::set<int64> ignored_tracks_;
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std::string audio_encryption_key_id_;
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std::string video_encryption_key_id_;
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LogCB log_cb_;
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WebMAudioClient audio_client_;
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AudioDecoderConfig audio_decoder_config_;
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WebMVideoClient video_client_;
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VideoDecoderConfig video_decoder_config_;
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DISALLOW_COPY_AND_ASSIGN(WebMTracksParser);
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};
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} // namespace media
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#endif // MEDIA_WEBM_WEBM_TRACKS_PARSER_H_
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