112 lines
3.5 KiB
C
112 lines
3.5 KiB
C
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/*
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* Copyright (c) 2004 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MEDIA_ENGINE_WEBRTCVOE_H_
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#define WEBRTC_MEDIA_ENGINE_WEBRTCVOE_H_
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#include <memory>
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#include "webrtc/base/common.h"
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#include "webrtc/media/engine/webrtccommon.h"
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#include "webrtc/common_types.h"
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#include "webrtc/modules/audio_device/include/audio_device.h"
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#include "webrtc/voice_engine/include/voe_audio_processing.h"
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#include "webrtc/voice_engine/include/voe_base.h"
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#include "webrtc/voice_engine/include/voe_codec.h"
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#include "webrtc/voice_engine/include/voe_errors.h"
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#include "webrtc/voice_engine/include/voe_hardware.h"
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#include "webrtc/voice_engine/include/voe_volume_control.h"
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namespace cricket {
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// automatically handles lifetime of WebRtc VoiceEngine
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class scoped_voe_engine {
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public:
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explicit scoped_voe_engine(webrtc::VoiceEngine* e) : ptr(e) {}
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// VERIFY, to ensure that there are no leaks at shutdown
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~scoped_voe_engine() { if (ptr) VERIFY(webrtc::VoiceEngine::Delete(ptr)); }
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// Releases the current pointer.
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void reset() {
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if (ptr) {
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VERIFY(webrtc::VoiceEngine::Delete(ptr));
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ptr = NULL;
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}
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}
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webrtc::VoiceEngine* get() const { return ptr; }
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private:
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webrtc::VoiceEngine* ptr;
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};
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// unique_ptr-like class to handle obtaining and releasing WebRTC interface
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// pointers.
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template<class T>
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class scoped_voe_ptr {
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public:
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explicit scoped_voe_ptr(const scoped_voe_engine& e)
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: ptr(T::GetInterface(e.get())) {}
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explicit scoped_voe_ptr(T* p) : ptr(p) {}
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~scoped_voe_ptr() { if (ptr) ptr->Release(); }
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T* operator->() const { return ptr; }
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T* get() const { return ptr; }
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// Releases the current pointer.
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void reset() {
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if (ptr) {
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ptr->Release();
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ptr = NULL;
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}
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}
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private:
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T* ptr;
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};
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// Utility class for aggregating the various WebRTC interface.
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// Fake implementations can also be injected for testing.
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class VoEWrapper {
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public:
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VoEWrapper()
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: engine_(webrtc::VoiceEngine::Create()), processing_(engine_),
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base_(engine_), codec_(engine_), hw_(engine_),
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volume_(engine_) {
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}
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VoEWrapper(webrtc::VoEAudioProcessing* processing,
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webrtc::VoEBase* base,
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webrtc::VoECodec* codec,
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webrtc::VoEHardware* hw,
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webrtc::VoEVolumeControl* volume)
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: engine_(NULL),
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processing_(processing),
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base_(base),
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codec_(codec),
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hw_(hw),
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volume_(volume) {
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}
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~VoEWrapper() {}
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webrtc::VoiceEngine* engine() const { return engine_.get(); }
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webrtc::VoEAudioProcessing* processing() const { return processing_.get(); }
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webrtc::VoEBase* base() const { return base_.get(); }
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webrtc::VoECodec* codec() const { return codec_.get(); }
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webrtc::VoEHardware* hw() const { return hw_.get(); }
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webrtc::VoEVolumeControl* volume() const { return volume_.get(); }
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int error() { return base_->LastError(); }
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private:
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scoped_voe_engine engine_;
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scoped_voe_ptr<webrtc::VoEAudioProcessing> processing_;
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scoped_voe_ptr<webrtc::VoEBase> base_;
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scoped_voe_ptr<webrtc::VoECodec> codec_;
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scoped_voe_ptr<webrtc::VoEHardware> hw_;
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scoped_voe_ptr<webrtc::VoEVolumeControl> volume_;
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};
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} // namespace cricket
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#endif // WEBRTC_MEDIA_ENGINE_WEBRTCVOE_H_
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