audio_destination.h | Explore in Territory

/*
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 *     from this software without specific prior written permission.
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#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_AUDIO_AUDIO_DESTINATION_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_AUDIO_AUDIO_DESTINATION_H_

#include <memory>
#include <optional>

#include "base/memory/raw_ref.h"
#include "base/memory/scoped_refptr.h"
#include "base/synchronization/lock.h"
#include "base/synchronization/waitable_event.h"
#include "base/task/single_thread_task_runner.h"
#include "base/time/time.h"
#include "media/base/audio_glitch_info.h"
#include "media/base/audio_renderer_sink.h"
#include "third_party/blink/public/platform/web_audio_device.h"
#include "third_party/blink/public/platform/web_vector.h"
#include "third_party/blink/renderer/platform/audio/audio_bus.h"
#include "third_party/blink/renderer/platform/audio/audio_io_callback.h"
#include "third_party/blink/renderer/platform/audio/media_multi_channel_resampler.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/scheduler/public/thread.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/blink/renderer/platform/wtf/thread_safe_ref_counted.h"

namespace media {
struct AudioGlitchInfo;
}

namespace blink {

class PushPullFIFO;
class WebAudioLatencyHint;
class WebAudioSinkDescriptor;

// The AudioDestination class is an audio sink interface between the media
// renderer and the Blink's WebAudio module. It has a FIFO to adapt the
// different processing block sizes of WebAudio renderer and actual hardware
// audio callback.
//
// Currently AudioDestination supports two types of threading models:
//  - Single-thread (default): process the entire WebAudio render call chain by
//    AudioDeviceThread.
//  - Dual-thread (experimental): Use WebThread for the WebAudio rendering with
//    AudioWorkletThread.
class PLATFORM_EXPORT AudioDestination final
    : public ThreadSafeRefCounted<AudioDestination>,
      public media::AudioRendererSink::RenderCallback { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_AUDIO_AUDIO_DESTINATION_H_
chromium/third_party/blink/renderer/platform/audio/audio_destination.h
