mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-02 01:21:33 +08:00
105 lines
3.3 KiB
C++
105 lines
3.3 KiB
C++
/*
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* MIT License
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*
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* Copyright (c) 2016 xiongziliang <771730766@qq.com>
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*
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* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "RtspMuxer.h"
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#include "Common/Factory.h"
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namespace mediakit {
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void RtspMuxer::addTrack(const Track::Ptr &track, uint32_t ssrc, int mtu) {
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auto codec_id = track->getCodecId();
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_track_map[codec_id] = track;
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if(mtu == 0){
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mtu = (track->getTrackType() == TrackVideo ? 1400 : 600);
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}
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auto lam = [this,ssrc,mtu,track](){
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//异步生成rtp编码器
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//根据track生产sdp
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Sdp::Ptr sdp = Factory::getSdpByTrack(track);
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if (!sdp) {
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return;
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}
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// 根据sdp生成rtp编码器
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auto encoder = sdp->createRtpEncoder(ssrc ? ssrc : ((uint64_t) sdp.get()) & 0xFFFFFFFF, mtu);
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if (!encoder) {
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return;
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}
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//添加其sdp
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_sdp.append(sdp->getSdp());
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//设置Track的代理，这样输入frame至Track时，最终数据将输出到RtpEncoder中
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track->addDelegate(encoder);
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//rtp编码器共用同一个环形缓存
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encoder->setRtpRing(_rtpRing);
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};
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if(track->ready()){
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lam();
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}else{
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_trackReadyCallback[codec_id] = lam;
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}
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}
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string RtspMuxer::getSdp() {
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if(!_trackReadyCallback.empty()){
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//尚未就绪
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return "";
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}
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return _sdp;
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}
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void RtspMuxer::inputFrame(const Frame::Ptr &frame) {
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auto codec_id = frame->getCodecId();
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auto it = _track_map.find(codec_id);
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if (it == _track_map.end()) {
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return;
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}
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it->second->inputFrame(frame);
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if(!_inited && !_trackReadyCallback.empty() && it->second->ready()){
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//Track由未就绪状态装换成就绪状态，我们就生成sdp以及rtp编码器
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auto it_callback = _trackReadyCallback.find(codec_id);
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if(it_callback != _trackReadyCallback.end()){
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it_callback->second();
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_trackReadyCallback.erase(it_callback);
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}
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}
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if(!_inited && _trackReadyCallback.empty()){
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_inited = true;
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onInited();
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}
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}
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bool RtspMuxer::inputRtp(const RtpPacket::Ptr &rtp, bool key_pos) {
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_rtpRing->write(rtp,key_pos);
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return key_pos;
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}
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RtpRingInterface::RingType::Ptr RtspMuxer::getRtpRing() const {
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return _rtpRing;
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}
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} /* namespace mediakit */ |