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// Copyright 2021 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 THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_AUDIO_FRAME_SERIALIZATION_DATA_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_AUDIO_FRAME_SERIALIZATION_DATA_H_
#include "base/time/time.h"
#include "media/base/audio_bus.h"
#include "third_party/blink/renderer/modules/modules_export.h"
namespace blink {
// Wrapper that contains all the necessary information to recreate an
// AudioFrame. It abstracts how audio data is actually backed, to simplify
// lifetime guarantees when jumping threads.
// TODO(https://crbug.com/1168418): add actual serialization support, to allow
// the use of AudioFrames in workers.
class MODULES_EXPORT AudioFrameSerializationData {
public:
virtual ~AudioFrameSerializationData() = default;
AudioFrameSerializationData(const AudioFrameSerializationData&) = delete;
AudioFrameSerializationData& operator=(const AudioFrameSerializationData&) =
delete;
// Helper function that creates a simple media::AudioBus backed wrapper.
static std::unique_ptr<AudioFrameSerializationData> Wrap(
std::unique_ptr<media::AudioBus> data,
int sample_rate,
base::TimeDelta timestamp);
virtual media::AudioBus* data() = 0;
int sample_rate() const { return sample_rate_; }
base::TimeDelta timestamp() const { return timestamp_; }
protected:
AudioFrameSerializationData(int sample_rate, base::TimeDelta timestamp);
private:
int sample_rate_;
base::TimeDelta timestamp_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_AUDIO_FRAME_SERIALIZATION_DATA_H_
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