整理优化代码

src/Rtsp/RtspMuxer.cpp

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+/*
+* MIT License
+*
+* Copyright (c) 2016-2019 xiongziliang <771730766@qq.com>
+*
+* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in all
+* copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*/
+
+#include "RtspMuxer.h"
+#include "Extension/Factory.h"
+
+namespace mediakit {
+
+RtspMuxer::RtspMuxer(const TitleSdp::Ptr &title){
+    if(!title){
+        _sdp = std::make_shared<TitleSdp>()->getSdp();
+    } else{
+        _sdp = title->getSdp();
+    }
+    _rtpRing = std::make_shared<RtpRingInterface::RingType>();
+}
+
+void RtspMuxer::onTrackReady(const Track::Ptr &track) {
+    //根据track生产sdp
+    Sdp::Ptr sdp = track->getSdp();
+    if (!sdp) {
+        return;
+    }
+    auto encoder = Factory::getRtpEncoderBySdp(sdp);
+    if (!encoder) {
+        return;
+    }
+    //添加其sdp
+    _sdp.append(sdp->getSdp());
+    //设置Track的代理，这样输入frame至Track时，最终数据将输出到RtpEncoder中
+    track->addDelegate(encoder);
+    //rtp编码器共用同一个环形缓存
+    encoder->setRtpRing(_rtpRing);
+}
+
+string RtspMuxer::getSdp() {
+    if(!isAllTrackReady()){
+        //尚未就绪
+        return "";
+    }
+    return _sdp;
+}
+
+RtpRingInterface::RingType::Ptr RtspMuxer::getRtpRing() const {
+    return _rtpRing;
+}
+
+
+} /* namespace mediakit */