shaka-packager/packager/media/formats/webvtt/webvtt_parser.h

56 lines
1.5 KiB
C++

// Copyright 2017 Google Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
#ifndef PACKAGER_MEDIA_FORMATS_WEBVTT_WEBVTT_PARSER_H_
#define PACKAGER_MEDIA_FORMATS_WEBVTT_WEBVTT_PARSER_H_
#include <stdint.h>
#include <vector>
#include "packager/media/formats/webvtt/text_readers.h"
#include "packager/media/origin/origin_handler.h"
namespace shaka {
namespace media {
// Used to parse a WebVTT source into Cues that will be sent downstream.
class WebVttParser : public OriginHandler {
public:
WebVttParser(const std::string& input_path, const std::string& language);
Status Run() override;
void Cancel() override;
private:
WebVttParser(const WebVttParser&) = delete;
WebVttParser& operator=(const WebVttParser&) = delete;
Status InitializeInternal() override;
bool ValidateOutputStreamIndex(size_t stream_index) const override;
bool Parse(BlockReader* block_reader);
bool ParseCueWithNoId(const std::vector<std::string>& block);
bool ParseCueWithId(const std::vector<std::string>& block);
Status ParseCue(const std::string& id,
const std::string* block,
size_t block_size);
Status DispatchTextStreamInfo();
std::string input_path_;
std::string language_;
std::string style_region_config_;
bool stream_info_dispatched_ = false;
bool keep_reading_ = true;
};
} // namespace media
} // namespace shaka
#endif // MEDIA_FORMATS_WEBVTT_WEBVTT_PARSER_H_