third_party/blink/renderer/platform/mediastream/media_stream_web_audio_source.h

/*
 * Copyright 2014 Google Inc. All rights reserved.
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    in the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name of Ericsson nor the names of its contributors
 *    may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_MEDIASTREAM_MEDIA_STREAM_WEB_AUDIO_SOURCE_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_MEDIASTREAM_MEDIA_STREAM_WEB_AUDIO_SOURCE_H_

#include <memory>
#include <utility>

#include "base/memory/ptr_util.h"
#include "third_party/blink/renderer/platform/audio/audio_source_provider.h"
#include "third_party/blink/renderer/platform/wtf/noncopyable.h"
#include "third_party/blink/renderer/platform/wtf/threading_primitives.h"

namespace blink {

class WebAudioSourceProvider;

class MediaStreamWebAudioSource : public AudioSourceProvider {
  WTF_MAKE_NONCOPYABLE(MediaStreamWebAudioSource);

 public:
  static std::unique_ptr<MediaStreamWebAudioSource> Create(
      std::unique_ptr<WebAudioSourceProvider> provider) {
    return base::WrapUnique(new MediaStreamWebAudioSource(std::move(provider)));
  }

  ~MediaStreamWebAudioSource() override;

 private:
  explicit MediaStreamWebAudioSource(std::unique_ptr<WebAudioSourceProvider>);

  // blink::AudioSourceProvider implementation.
  void ProvideInput(AudioBus*, size_t frames_to_process) override;

  std::unique_ptr<WebAudioSourceProvider> web_audio_source_provider_;
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_MEDIASTREAM_MEDIA_STREAM_WEB_AUDIO_SOURCE_H_