43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
// Copyright 2018 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_TEXT_PADDER_H_
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#define PACKAGER_MEDIA_FORMATS_WEBVTT_TEXT_PADDER_H_
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#include "packager/media/base/media_handler.h"
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namespace shaka {
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namespace media {
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/// A media handler that will inject empty text samples to fill any gaps
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/// that may appear in the text stream. A min duration can be given to
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/// ensure that the stream will have samples up to the given duration.
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class TextPadder : public MediaHandler {
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public:
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/// Create a new text padder that will ensure the stream's duration is
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// at least |duration_ms| long.
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explicit TextPadder(int64_t duration_ms);
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~TextPadder() override = default;
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private:
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TextPadder(const TextPadder&) = delete;
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TextPadder& operator=(const TextPadder&) = delete;
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Status InitializeInternal() override;
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Status Process(std::unique_ptr<StreamData> data) override;
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Status OnFlushRequest(size_t index) override;
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Status OnTextSample(std::unique_ptr<StreamData> data);
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int64_t duration_ms_;
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int64_t max_end_time_ms_ = 0;
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};
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} // namespace media
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} // namespace shaka
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#endif // MEDIA_FORMATS_WEBVTT_TEXT_PADDER_H_
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