1 /* 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef WEBRTC_SOUND_SOUNDSYSTEMPROXY_H_ 12 #define WEBRTC_SOUND_SOUNDSYSTEMPROXY_H_ 13 14 #include "webrtc/sound/soundsysteminterface.h" 15 #include "webrtc/base/basictypes.h" // for NULL 16 17 namespace rtc { 18 19 // A SoundSystemProxy is a sound system that defers to another one. 20 // Init(), Terminate(), and GetName() are left as pure virtual, so a sub-class 21 // must define them. 22 class SoundSystemProxy : public SoundSystemInterface { 23 public: SoundSystemProxy()24 SoundSystemProxy() : wrapped_(NULL) {} 25 26 // Each of these methods simply defers to wrapped_ if non-NULL, else fails. 27 28 virtual bool EnumeratePlaybackDevices(SoundDeviceLocatorList *devices); 29 virtual bool EnumerateCaptureDevices(SoundDeviceLocatorList *devices); 30 31 virtual bool GetDefaultPlaybackDevice(SoundDeviceLocator **device); 32 virtual bool GetDefaultCaptureDevice(SoundDeviceLocator **device); 33 34 virtual SoundOutputStreamInterface *OpenPlaybackDevice( 35 const SoundDeviceLocator *device, 36 const OpenParams ¶ms); 37 virtual SoundInputStreamInterface *OpenCaptureDevice( 38 const SoundDeviceLocator *device, 39 const OpenParams ¶ms); 40 41 protected: 42 SoundSystemInterface *wrapped_; 43 }; 44 45 } // namespace rtc 46 47 #endif // WEBRTC_SOUND_SOUNDSYSTEMPROXY_H_ 48