// Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef PACKAGER_MEDIA_FORMATS_WEBM_WEBM_TRACKS_PARSER_H_ #define PACKAGER_MEDIA_FORMATS_WEBM_WEBM_TRACKS_PARSER_H_ #include #include #include #include #include #include #include #include #include #include #include #include #include namespace shaka { namespace media { /// Parser for WebM Tracks element. class WebMTracksParser : public WebMParserClient { public: explicit WebMTracksParser(bool ignore_text_tracks); ~WebMTracksParser() override; /// Parses a WebM Tracks element in |buf|. /// @return -1 if the parse fails. /// @return 0 if more data is needed. /// @return The number of bytes parsed on success. int Parse(const uint8_t* buf, int size); int64_t audio_track_num() const { return audio_track_num_; } int64_t video_track_num() const { return video_track_num_; } /// If TrackEntry DefaultDuration field existed for the associated audio or /// video track, returns that value converted from ns to base::TimeDelta with /// precision not greater than |timecode_scale_in_us|. Defaults to /// kNoTimestamp. int64_t GetAudioDefaultDuration(const double timecode_scale_in_us) const; int64_t GetVideoDefaultDuration(const double timecode_scale_in_us) const; const std::set& ignored_tracks() const { return ignored_tracks_; } const std::string& audio_encryption_key_id() const { return audio_encryption_key_id_; } std::shared_ptr audio_stream_info() { return audio_stream_info_; } const std::string& video_encryption_key_id() const { return video_encryption_key_id_; } std::shared_ptr video_stream_info() { return video_stream_info_; } typedef std::map TextTracks; const TextTracks& text_tracks() const { return text_tracks_; } const VPCodecConfigurationRecord& vp_config() const { return vp_config_; } private: // WebMParserClient implementation. WebMParserClient* OnListStart(int id) override; bool OnListEnd(int id) override; bool OnUInt(int id, int64_t val) override; bool OnFloat(int id, double val) override; bool OnBinary(int id, const uint8_t* data, int size) override; bool OnString(int id, const std::string& str) override; int64_t track_type_; int64_t track_num_; std::string track_name_; std::string track_language_; std::string codec_id_; std::vector codec_private_; int64_t seek_preroll_; int64_t codec_delay_; int64_t default_duration_; std::unique_ptr track_content_encodings_client_; int64_t audio_track_num_; int64_t audio_default_duration_; int64_t video_track_num_; int64_t video_default_duration_; bool ignore_text_tracks_; TextTracks text_tracks_; std::set ignored_tracks_; std::string audio_encryption_key_id_; std::string video_encryption_key_id_; WebMAudioClient audio_client_; std::shared_ptr audio_stream_info_; WebMVideoClient video_client_; VPCodecConfigurationRecord vp_config_; std::shared_ptr video_stream_info_; DISALLOW_COPY_AND_ASSIGN(WebMTracksParser); }; } // namespace media } // namespace shaka #endif // PACKAGER_MEDIA_FORMATS_WEBM_WEBM_TRACKS_PARSER_H_