61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
// Copyright 2017 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_FORMATS_WEBVTT_WEBVTT_PARSER_H_
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#define PACKAGER_MEDIA_FORMATS_WEBVTT_WEBVTT_PARSER_H_
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#include <map>
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#include <string>
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#include <vector>
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#include <packager/media/base/media_parser.h>
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#include <packager/media/base/text_sample.h>
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#include <packager/media/base/text_stream_info.h>
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#include <packager/media/formats/webvtt/text_readers.h>
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namespace shaka {
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namespace media {
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// Used to parse a WebVTT source into Cues that will be sent downstream.
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class WebVttParser : public MediaParser {
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public:
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WebVttParser();
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void Init(const InitCB& init_cb,
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const NewMediaSampleCB& new_media_sample_cb,
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const NewTextSampleCB& new_text_sample_cb,
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KeySource* decryption_key_source) override;
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bool Flush() override;
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bool Parse(const uint8_t* buf, int size) override;
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private:
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bool Parse();
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bool ParseBlock(const std::vector<std::string>& block);
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bool ParseRegion(const std::vector<std::string>& block);
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bool ParseCueWithNoId(const std::vector<std::string>& block);
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bool ParseCueWithId(const std::vector<std::string>& block);
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bool ParseCue(const std::string& id,
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const std::string* block,
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size_t block_size);
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void DispatchTextStreamInfo();
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InitCB init_cb_;
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NewTextSampleCB new_text_sample_cb_;
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BlockReader reader_;
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std::map<std::string, TextRegion> regions_;
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std::string css_styles_;
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bool saw_cue_ = false;
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bool stream_info_dispatched_ = false;
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bool initialized_ = false;
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};
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} // namespace media
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} // namespace shaka
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#endif // MEDIA_FORMATS_WEBVTT_WEBVTT_PARSER_H_
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