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/*
* Copyright (c) 2004 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef MEDIA_ENGINE_WEBRTCVOE_H_
#define MEDIA_ENGINE_WEBRTCVOE_H_
#include <memory>
#include "common_types.h" // NOLINT(build/include)
#include "modules/audio_device/include/audio_device.h"
#include "voice_engine/include/voe_base.h"
#include "voice_engine/include/voe_errors.h"
namespace cricket {
// automatically handles lifetime of WebRtc VoiceEngine
class scoped_voe_engine {
public:
explicit scoped_voe_engine(webrtc::VoiceEngine* e) : ptr(e) {}
// RTC_DCHECK, to ensure that there are no leaks at shutdown
~scoped_voe_engine() {
if (ptr) {
const bool success = webrtc::VoiceEngine::Delete(ptr);
RTC_DCHECK(success);
}
}
// Releases the current pointer.
void reset() {
if (ptr) {
const bool success = webrtc::VoiceEngine::Delete(ptr);
RTC_DCHECK(success);
ptr = NULL;
}
}
webrtc::VoiceEngine* get() const { return ptr; }
private:
webrtc::VoiceEngine* ptr;
};
// unique_ptr-like class to handle obtaining and releasing WebRTC interface
// pointers.
template<class T>
class scoped_voe_ptr {
public:
explicit scoped_voe_ptr(const scoped_voe_engine& e)
: ptr(T::GetInterface(e.get())) {}
explicit scoped_voe_ptr(T* p) : ptr(p) {}
~scoped_voe_ptr() { if (ptr) ptr->Release(); }
T* operator->() const { return ptr; }
T* get() const { return ptr; }
// Releases the current pointer.
void reset() {
if (ptr) {
ptr->Release();
ptr = NULL;
}
}
private:
T* ptr;
};
// Utility class for aggregating the various WebRTC interface.
// Fake implementations can also be injected for testing.
class VoEWrapper {
public:
VoEWrapper()
: engine_(webrtc::VoiceEngine::Create()), base_(engine_) {
}
explicit VoEWrapper(webrtc::VoEBase* base) : engine_(NULL), base_(base) {}
~VoEWrapper() {}
webrtc::VoiceEngine* engine() const { return engine_.get(); }
webrtc::VoEBase* base() const { return base_.get(); }
private:
scoped_voe_engine engine_;
scoped_voe_ptr<webrtc::VoEBase> base_;
};
} // namespace cricket
#endif // MEDIA_ENGINE_WEBRTCVOE_H_
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