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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_BASE_FAKE_AUDIO_RENDERER_SINK_H_
#define MEDIA_BASE_FAKE_AUDIO_RENDERER_SINK_H_
#include <stdint.h>
#include <string>
#include "base/macros.h"
#include "media/base/audio_parameters.h"
#include "media/base/audio_renderer_sink.h"
#include "media/base/output_device_info.h"
namespace media {
class FakeAudioRendererSink : public AudioRendererSink {
public:
enum State {
kUninitialized,
kInitialized,
kStarted,
kPaused,
kPlaying,
kStopped
};
FakeAudioRendererSink();
explicit FakeAudioRendererSink(const AudioParameters& hardware_params);
void Initialize(const AudioParameters& params,
RenderCallback* callback) override;
void Start() override;
void Stop() override;
void Pause() override;
void Play() override;
bool SetVolume(double volume) override;
OutputDeviceInfo GetOutputDeviceInfo() override;
bool CurrentThreadIsRenderingThread() override;
// Attempts to call Render() on the callback provided to
// Initialize() with |dest| and |delay|.
// Returns true and sets |frames_written| to the return value of the
// Render() call.
// Returns false if this object is in a state where calling Render()
// should not occur. (i.e., in the kPaused or kStopped state.) The
// value of |frames_written| is undefined if false is returned.
bool Render(AudioBus* dest, base::TimeDelta delay, int* frames_written);
void OnRenderError();
State state() const { return state_; }
protected:
~FakeAudioRendererSink() override;
private:
void ChangeState(State new_state);
State state_;
RenderCallback* callback_;
OutputDeviceInfo output_device_info_;
DISALLOW_COPY_AND_ASSIGN(FakeAudioRendererSink);
};
} // namespace media
#endif // MEDIA_BASE_FAKE_AUDIO_RENDERER_SINK_H_