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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef PPAPI_CPP_DEV_AUDIO_OUTPUT_DEV_H_
#define PPAPI_CPP_DEV_AUDIO_OUTPUT_DEV_H_
#include <stdint.h>
#include <vector>
#include "ppapi/c/dev/ppb_audio_output_dev.h"
#include "ppapi/cpp/audio_config.h"
#include "ppapi/cpp/completion_callback.h"
#include "ppapi/cpp/dev/device_ref_dev.h"
#include "ppapi/cpp/resource.h"
namespace pp {
class InstanceHandle;
class AudioOutput_Dev : public Resource {
public:
// An empty constructor for an AudioOutput resource.
AudioOutput_Dev();
// Constructor to create an audio output resource.
explicit AudioOutput_Dev(const InstanceHandle& instance);
virtual ~AudioOutput_Dev();
// Static function for determining whether the browser supports the required
// AudioOutput interface.
//
// @return true if the interface is available, false otherwise.
static bool IsAvailable();
int32_t EnumerateDevices(
const CompletionCallbackWithOutput<std::vector<DeviceRef_Dev> >& cb);
int32_t MonitorDeviceChange(PP_MonitorDeviceChangeCallback callback,
void* user_data);
// If |device_ref| is null (i.e., is_null() returns true), the default device
// will be used.
int32_t Open(const DeviceRef_Dev& device_ref,
const AudioConfig& config,
PPB_AudioOutput_Callback audio_output_callback,
void* user_data,
const CompletionCallback& callback);
// Getter function for returning the internal <code>PPB_AudioConfig</code>
// struct.
//
// @return A mutable reference to the PPB_AudioConfig struct.
AudioConfig& config() { return config_; }
// Getter function for returning the internal <code>PPB_AudioConfig</code>
// struct.
//
// @return A const reference to the internal <code>PPB_AudioConfig</code>
// struct.
const AudioConfig& config() const { return config_; }
// StartPlayback() starts playback of audio.
//
// @return true if successful, otherwise false.
bool StartPlayback();
// StopPlayback stops playback of audio.
//
// @return true if successful, otherwise false.
bool StopPlayback();
// Close closes the audio output device.
void Close();
private:
AudioConfig config_;
};
} // namespace pp
#endif // PPAPI_CPP_DEV_AUDIO_OUTPUT_DEV_H_
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