webrtc/talk/sound/soundsystemproxy.h
buildbot@webrtc.org d4e598d57a (Auto)update libjingle 72097588-> 72159069
git-svn-id: http://webrtc.googlecode.com/svn/trunk@6799 4adac7df-926f-26a2-2b94-8c16560cd09d
2014-07-29 17:36:52 +00:00

65 lines
2.6 KiB
C++

/*
* libjingle
* Copyright 2004--2010, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TALK_SOUND_SOUNDSYSTEMPROXY_H_
#define TALK_SOUND_SOUNDSYSTEMPROXY_H_
#include "webrtc/base/basictypes.h" // for NULL
#include "talk/sound/soundsysteminterface.h"
namespace cricket {
// A SoundSystemProxy is a sound system that defers to another one.
// Init(), Terminate(), and GetName() are left as pure virtual, so a sub-class
// must define them.
class SoundSystemProxy : public SoundSystemInterface {
public:
SoundSystemProxy() : wrapped_(NULL) {}
// Each of these methods simply defers to wrapped_ if non-NULL, else fails.
virtual bool EnumeratePlaybackDevices(SoundDeviceLocatorList *devices);
virtual bool EnumerateCaptureDevices(SoundDeviceLocatorList *devices);
virtual bool GetDefaultPlaybackDevice(SoundDeviceLocator **device);
virtual bool GetDefaultCaptureDevice(SoundDeviceLocator **device);
virtual SoundOutputStreamInterface *OpenPlaybackDevice(
const SoundDeviceLocator *device,
const OpenParams &params);
virtual SoundInputStreamInterface *OpenCaptureDevice(
const SoundDeviceLocator *device,
const OpenParams &params);
protected:
SoundSystemInterface *wrapped_;
};
} // namespace cricket
#endif // TALK_SOUND_SOUNDSYSTEMPROXY_H_