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 0.2 or 0.3. 54 int32_t Open(const DeviceRef_Dev& device_ref, 55 const AudioConfig& config, 56 PPB_AudioInput_Callback_0_2 audio_input_callback_0_2, 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
