chromium/third_party/blink/renderer/modules/media/audio/audio_renderer_mixer_input.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// THREAD SAFETY
//
// This class is generally not thread safe. Callers should ensure thread safety.
// For instance, the `sink_lock_` in WebAudioSourceProvider synchronizes access
// to this object across the main thread (for WebAudio APIs) and the
// media thread (for HTMLMediaElement APIs).
//
// The one exception is protection for `volume_` via `volume_lock_`. This lock
// prevents races between SetVolume() (called on any thread) and ProvideInput
// (called on audio device thread). See http://crbug.com/588992.

#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIA_AUDIO_AUDIO_RENDERER_MIXER_INPUT_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIA_AUDIO_AUDIO_RENDERER_MIXER_INPUT_H_

#include <string>

#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/synchronization/lock.h"
#include "base/thread_annotations.h"
#include "base/unguessable_token.h"
#include "media/base/audio_converter.h"
#include "media/base/audio_latency.h"
#include "media/base/audio_renderer_sink.h"
#include "third_party/blink/public/common/tokens/tokens.h"
#include "third_party/blink/public/platform/web_common.h"

namespace blink {

class AudioRendererMixerPool;
class AudioRendererMixer;

class BLINK_MODULES_EXPORT AudioRendererMixerInput
    : public media::SwitchableAudioRendererSink,
      public media::AudioConverter::InputCallback { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIA_AUDIO_AUDIO_RENDERER_MIXER_INPUT_H_