45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
// Copyright 2017 Google Inc. 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_UTILS_H_
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#define PACKAGER_MEDIA_FORMATS_WEBVTT_UTILS_H_
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#include <stdint.h>
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#include <list>
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#include <memory>
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#include <string>
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#include "packager/base/strings/string_piece.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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namespace shaka {
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namespace media {
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// Parse a timestamp into milliseconds using the two patterns defined by WebVtt:
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// LONG : ##:##:##.### (long can have 2 or more hour digits)
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// SHORT : ##:##:###
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bool WebVttTimestampToMs(const base::StringPiece& source, uint64_t* out);
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// Create a long form timestamp encoded as a string.
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std::string MsToWebVttTimestamp(uint64_t ms);
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/// Converts the given text settings to a WebVTT settings string.
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std::string WebVttSettingsToString(const TextSettings& settings);
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/// Converts the given TextFragment to a WebVTT cue body string.
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std::string WebVttFragmentToString(const TextFragment& fragment);
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/// Converts the common fields in the stream into WebVTT text. This pulls out
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/// the REGION and STYLE blocks.
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std::string WebVttGetPreamble(const TextStreamInfo& stream_info);
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} // namespace media
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} // namespace shaka
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#endif // PACKAGER_MEDIA_FORMATS_WEBVTT_UTILS_H_
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