ppapi/cpp/dev/audio_input_dev.h

   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
  16 namespace pp {
  17
  18 class InstanceHandle;
  19
  20 class 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_