160 lines
5.9 KiB
C++
160 lines
5.9 KiB
C++
/*
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* libjingle
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* Copyright 2004--2011, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TALK_APP_WEBRTC_VOICEENGINE_H_
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#define TALK_APP_WEBRTC_VOICEENGINE_H_
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#include "talk/base/common.h"
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#include "common_types.h"
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#include "voice_engine/main/interface/voe_base.h"
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#include "voice_engine/main/interface/voe_codec.h"
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#include "voice_engine/main/interface/voe_errors.h"
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#include "voice_engine/main/interface/voe_file.h"
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#include "voice_engine/main/interface/voe_hardware.h"
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#include "voice_engine/main/interface/voe_network.h"
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#include "voice_engine/main/interface/voe_rtp_rtcp.h"
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#include "voice_engine/main/interface/voe_video_sync.h"
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#include "voice_engine/main/interface/voe_volume_control.h"
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namespace webrtc {
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// Tracing helpers, for easy logging when WebRTC calls fail.
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// Example: "LOG_RTCERR1(StartSend, channel);" produces the trace
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// "StartSend(1) failed, err=XXXX"
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// The method GetLastRtcError must be defined in the calling scope.
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#define LOG_RTCERR0(func) \
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LOG_RTCERR0_EX(func, GetLastRtcError())
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#define LOG_RTCERR1(func, a1) \
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LOG_RTCERR1_EX(func, a1, GetLastRtcError())
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#define LOG_RTCERR2(func, a1, a2) \
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LOG_RTCERR2_EX(func, a1, a2, GetLastRtcError())
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#define LOG_RTCERR3(func, a1, a2, a3) \
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LOG_RTCERR3_EX(func, a1, a2, a3, GetLastRtcError())
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#define LOG_RTCERR0_EX(func, err) LOG(WARNING) \
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<< "" << #func << "() failed, err=" << err
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#define LOG_RTCERR1_EX(func, a1, err) LOG(WARNING) \
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<< "" << #func << "(" << a1 << ") failed, err=" << err
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#define LOG_RTCERR2_EX(func, a1, a2, err) LOG(WARNING) \
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<< "" << #func << "(" << a1 << ", " << a2 << ") failed, err=" \
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<< err
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#define LOG_RTCERR3_EX(func, a1, a2, a3, err) LOG(WARNING) \
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<< "" << #func << "(" << a1 << ", " << a2 << ", " << a3 \
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<< ") failed, err=" << err
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// automatically handles lifetime of WebRtc VoiceEngine
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class scoped_webrtc_engine {
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public:
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explicit scoped_webrtc_engine(VoiceEngine* e) : ptr(e) {}
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// VERIFY, to ensure that there are no leaks at shutdown
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~scoped_webrtc_engine() { if (ptr) VERIFY(VoiceEngine::Delete(ptr)); }
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VoiceEngine* get() const { return ptr; }
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private:
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VoiceEngine* ptr;
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};
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// scoped_ptr class to handle obtaining and releasing WebRTC interface pointers
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template<class T>
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class scoped_rtc_ptr {
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public:
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explicit scoped_rtc_ptr(const scoped_webrtc_engine& e)
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: ptr(T::GetInterface(e.get())) {}
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template <typename E>
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explicit scoped_rtc_ptr(E* engine) : ptr(T::GetInterface(engine)) {}
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explicit scoped_rtc_ptr(T* p) : ptr(p) {}
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~scoped_rtc_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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// Queries the engine for the wrapped type and releases the current pointer.
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template <typename E>
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void reset(E* engine) {
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reset();
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if (engine)
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ptr = T::GetInterface(engine);
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}
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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 RtcWrapper {
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public:
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RtcWrapper()
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: engine_(VoiceEngine::Create()),
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base_(engine_), codec_(engine_), file_(engine_),
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hw_(engine_), network_(engine_), rtp_(engine_),
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sync_(engine_), volume_(engine_) {
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}
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RtcWrapper(VoEBase* base, VoECodec* codec, VoEFile* file,
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VoEHardware* hw, VoENetwork* network,
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VoERTP_RTCP* rtp, VoEVideoSync* sync,
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VoEVolumeControl* volume)
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: engine_(NULL),
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base_(base), codec_(codec), file_(file),
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hw_(hw), network_(network), rtp_(rtp),
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sync_(sync), volume_(volume) {
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}
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virtual ~RtcWrapper() {}
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VoiceEngine* engine() { return engine_.get(); }
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VoEBase* base() { return base_.get(); }
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VoECodec* codec() { return codec_.get(); }
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VoEFile* file() { return file_.get(); }
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VoEHardware* hw() { return hw_.get(); }
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VoENetwork* network() { return network_.get(); }
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VoERTP_RTCP* rtp() { return rtp_.get(); }
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VoEVideoSync* sync() { return sync_.get(); }
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VoEVolumeControl* volume() { return volume_.get(); }
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int error() { return base_->LastError(); }
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private:
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scoped_webrtc_engine engine_;
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scoped_rtc_ptr<VoEBase> base_;
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scoped_rtc_ptr<VoECodec> codec_;
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scoped_rtc_ptr<VoEFile> file_;
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scoped_rtc_ptr<VoEHardware> hw_;
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scoped_rtc_ptr<VoENetwork> network_;
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scoped_rtc_ptr<VoERTP_RTCP> rtp_;
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scoped_rtc_ptr<VoEVideoSync> sync_;
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scoped_rtc_ptr<VoEVolumeControl> volume_;
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};
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} //namespace webrtc
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#endif // TALK_APP_WEBRTC_VOICEENGINE_H_
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