chromium/third_party/blink/renderer/modules/mediarecorder/audio_track_recorder.h

// Copyright 2015 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_MEDIARECORDER_AUDIO_TRACK_RECORDER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIARECORDER_AUDIO_TRACK_RECORDER_H_

#include <memory>
#include <optional>

#include "base/memory/scoped_refptr.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/single_thread_task_runner.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool.h"
#include "base/threading/thread_checker.h"
#include "media/base/audio_encoder.h"
#include "third_party/blink/public/platform/modules/mediastream/web_media_stream_audio_sink.h"
#include "third_party/blink/renderer/modules/mediarecorder/track_recorder.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/platform/heap/persistent.h"
#include "third_party/blink/renderer/platform/heap/weak_cell.h"
#include "third_party/blink/renderer/platform/wtf/sequence_bound.h"

namespace media {
class AudioBus;
class AudioParameters;
}  // namespace media

namespace blink {

class AudioTrackEncoder;
class MediaStreamComponent;

// AudioTrackRecorder is a MediaStreamAudioSink that encodes the audio buses
// received from a Stream Audio Track. The class is constructed on a
// single thread (the main Render thread) but can receive MediaStreamAudioSink-
// related calls on a different "live audio" thread (referred to internally as
// the "capture thread"). It owns an internal thread to use for encoding, on
// which lives an AudioTrackEncoder with its own threading subtleties, see the
// implementation file.
class MODULES_EXPORT AudioTrackRecorder
    : public TrackRecorder<WebMediaStreamAudioSink> { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIARECORDER_AUDIO_TRACK_RECORDER_H_