1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef PPAPI_CPP_DEV_AUDIO_INPUT_DEV_H_
6#define PPAPI_CPP_DEV_AUDIO_INPUT_DEV_H_
7
8#include <vector>
9
10#include "ppapi/c/dev/ppb_audio_input_dev.h"
11#include "ppapi/cpp/audio_config.h"
12#include "ppapi/cpp/completion_callback.h"
13#include "ppapi/cpp/dev/device_ref_dev.h"
14#include "ppapi/cpp/resource.h"
15
16namespace pp {
17
18class InstanceHandle;
19
20class AudioInput_Dev : public Resource {
21 public:
22  /// An empty constructor for an AudioInput resource.
23  AudioInput_Dev();
24
25  /// Constructor to create an audio input resource.
26  explicit AudioInput_Dev(const InstanceHandle& instance);
27
28  virtual ~AudioInput_Dev();
29
30  /// Static function for determining whether the browser supports the required
31  /// AudioInput interface.
32  ///
33  /// @return true if the interface is available, false otherwise.
34  static bool IsAvailable();
35
36  int32_t EnumerateDevices(
37      const CompletionCallbackWithOutput<std::vector<DeviceRef_Dev> >&
38          callback);
39
40  int32_t MonitorDeviceChange(PP_MonitorDeviceChangeCallback callback,
41                              void* user_data);
42
43  /// If |device_ref| is null (i.e., is_null() returns true), the default device
44  /// will be used.
45  ///
46  /// Requires <code>PPB_AudioInput_Dev</code> version 0.4 or up.
47  int32_t Open(const DeviceRef_Dev& device_ref,
48               const AudioConfig& config,
49               PPB_AudioInput_Callback audio_input_callback,
50               void* user_data,
51               const CompletionCallback& callback);
52
53  /// Requires <code>PPB_AudioInput_Dev</code> version 0.3.
54  int32_t Open(const DeviceRef_Dev& device_ref,
55               const AudioConfig& config,
56               PPB_AudioInput_Callback_0_3 audio_input_callback_0_3,
57               void* user_data,
58               const CompletionCallback& callback);
59
60  bool StartCapture();
61  bool StopCapture();
62  void Close();
63};
64
65}  // namespace pp
66
67#endif  // PPAPI_CPP_DEV_AUDIO_INPUT_DEV_H_
68