chromium/third_party/blink/renderer/modules/mediastream/media_stream_audio_processor.h

// Copyright 2013 The Chromium Authors
// 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_MEDIASTREAM_MEDIA_STREAM_AUDIO_PROCESSOR_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASTREAM_MEDIA_STREAM_AUDIO_PROCESSOR_H_

#include <memory>
#include <optional>

#include "base/files/file.h"
#include "base/memory/scoped_refptr.h"
#include "base/task/single_thread_task_runner.h"
#include "base/threading/thread_checker.h"
#include "base/time/time.h"
#include "media/base/audio_parameters.h"
#include "media/webrtc/audio_processor.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/platform/mediastream/aec_dump_agent_impl.h"
#include "third_party/blink/renderer/platform/mediastream/media_stream_audio_processor_options.h"
#include "third_party/blink/renderer/platform/webrtc/webrtc_source.h"
#include "third_party/webrtc/api/media_stream_interface.h"
#include "third_party/webrtc/modules/audio_processing/include/audio_processing.h"

namespace media {
class AudioBus;
struct AudioProcessingSettings;
}  // namespace media

namespace blink {

class AecDumpAgentImpl;
class WebRtcAudioDeviceImpl;

AudioProcessorInterface;

// This class owns a media::AudioProcessor which processes captured audio.
// MediaStreamAudioProcessor manages subscriptions for echo cancellation
// playout reference audio, diagnostic recording communication with the browser,
// and renderer-specific threading requirements. All processing functionality is
// delegated to the media::AudioProcessor.
class MODULES_EXPORT MediaStreamAudioProcessor
    : public WebRtcPlayoutDataSource::Sink,
      public AudioProcessorInterface,
      public AecDumpAgentImpl::Delegate { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASTREAM_MEDIA_STREAM_AUDIO_PROCESSOR_H_