mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-23 11:17:09 +08:00
853 lines
27 KiB
C++
853 lines
27 KiB
C++
/*
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* MIT License
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*
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* Copyright (c) 2016-2019 xiongziliang <771730766@qq.com>
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* Copyright (c) 2018 huohuo <913481084@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 <set>
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#include <cmath>
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#include <stdarg.h>
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#include <algorithm>
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#include <iomanip>
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#include "Common/config.h"
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#include "RtspPlayer.h"
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#include "Util/MD5.h"
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#include "Util/mini.h"
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#include "Util/util.h"
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#include "Util/base64.h"
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#include "Network/sockutil.h"
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using namespace toolkit;
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using namespace mediakit::Client;
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namespace mediakit {
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enum PlayType {
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type_play = 0,
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type_pause,
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type_seek
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};
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RtspPlayer::RtspPlayer(const EventPoller::Ptr &poller) : TcpClient(poller){
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RtpReceiver::setPoolSize(64);
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}
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RtspPlayer::~RtspPlayer(void) {
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DebugL << endl;
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}
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void RtspPlayer::teardown(){
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if (alive()) {
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sendRtspRequest("TEARDOWN" ,_strContentBase);
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shutdown(SockException(Err_shutdown,"teardown"));
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}
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_rtspMd5Nonce.clear();
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_rtspRealm.clear();
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_aTrackInfo.clear();
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_strSession.clear();
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_strContentBase.clear();
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RtpReceiver::clear();
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CLEAR_ARR(_apRtpSock);
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CLEAR_ARR(_apRtcpSock);
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CLEAR_ARR(_aui16FirstSeq)
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CLEAR_ARR(_aui64RtpRecv)
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CLEAR_ARR(_aui64RtpRecv)
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CLEAR_ARR(_aui16NowSeq)
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_pPlayTimer.reset();
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_pRtpTimer.reset();
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_uiCseq = 1;
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_onHandshake = nullptr;
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}
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void RtspPlayer::play(const string &strUrl){
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Rtsp::eRtpType eType = (Rtsp::eRtpType)(int)(*this)[kRtpType];
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auto schema = FindField(strUrl.data(), nullptr,"://");
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bool isSSL = strcasecmp(schema.data(),"rtsps") == 0;
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//查找"://"与"/"之间的字符串，用于提取用户名密码
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auto middle_url = FindField(strUrl.data(),"://","/");
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if(middle_url.empty()){
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middle_url = FindField(strUrl.data(),"://", nullptr);
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}
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auto pos = middle_url.rfind('@');
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if(pos == string::npos){
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//并没有用户名密码
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play(isSSL,strUrl,"","",eType);
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return;
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}
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//包含用户名密码
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auto user_pwd = middle_url.substr(0,pos);
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auto suffix = strUrl.substr(schema.size() + 3 + pos + 1);
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auto url = StrPrinter << "rtsp://" << suffix << endl;
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if(user_pwd.find(":") == string::npos){
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play(isSSL,url,user_pwd,"",eType);
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return;
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}
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auto user = FindField(user_pwd.data(),nullptr,":");
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auto pwd = FindField(user_pwd.data(),":",nullptr);
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play(isSSL,url,user,pwd,eType);
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}
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void RtspPlayer::play(bool isSSL,const string &strUrl, const string &strUser, const string &strPwd, Rtsp::eRtpType eType ) {
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DebugL << strUrl << " "
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<< (strUser.size() ? strUser : "null") << " "
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<< (strPwd.size() ? strPwd:"null") << " "
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<< eType;
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teardown();
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if(strUser.size()){
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(*this)[kRtspUser] = strUser;
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}
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if(strPwd.size()){
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(*this)[kRtspPwd] = strPwd;
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(*this)[kRtspPwdIsMD5] = false;
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}
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_eType = eType;
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auto ip = FindField(strUrl.data(), "://", "/");
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if (ip.empty()) {
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ip = split(FindField(strUrl.data(), "://", NULL),"?")[0];
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}
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auto port = atoi(FindField(ip.data(), ":", NULL).data());
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if (port <= 0) {
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//rtsp 默认端口554
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port = isSSL ? 322 : 554;
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} else {
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//服务器域名
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ip = FindField(ip.data(), NULL, ":");
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}
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if(ip.empty()){
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onPlayResult_l(SockException(Err_other,StrPrinter << "illegal rtsp url:" << strUrl),false);
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return;
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}
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_strUrl = strUrl;
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weak_ptr<RtspPlayer> weakSelf = dynamic_pointer_cast<RtspPlayer>(shared_from_this());
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float playTimeOutSec = (*this)[kTimeoutMS].as<int>() / 1000.0;
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_pPlayTimer.reset( new Timer(playTimeOutSec, [weakSelf]() {
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auto strongSelf=weakSelf.lock();
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if(!strongSelf) {
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return false;
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}
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strongSelf->onPlayResult_l(SockException(Err_timeout,"play rtsp timeout"),false);
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return false;
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},getPoller()));
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if(!(*this)[kNetAdapter].empty()){
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setNetAdapter((*this)[kNetAdapter]);
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}
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startConnect(ip, port , playTimeOutSec);
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}
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void RtspPlayer::onConnect(const SockException &err){
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if(err.getErrCode() != Err_success) {
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onPlayResult_l(err,false);
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return;
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}
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sendDescribe();
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}
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void RtspPlayer::onRecv(const Buffer::Ptr& pBuf) {
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input(pBuf->data(),pBuf->size());
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}
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void RtspPlayer::onErr(const SockException &ex) {
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//定时器_pPlayTimer为空后表明握手结束了
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onPlayResult_l(ex,!_pPlayTimer);
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}
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// from live555
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bool RtspPlayer::handleAuthenticationFailure(const string ¶msStr) {
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if(!_rtspRealm.empty()){
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//已经认证过了
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return false;
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}
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char *realm = new char[paramsStr.size()];
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char *nonce = new char[paramsStr.size()];
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char *stale = new char[paramsStr.size()];
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onceToken token(nullptr,[&](){
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delete[] realm;
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delete[] nonce;
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delete[] stale;
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});
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if (sscanf(paramsStr.data(), "Digest realm=\"%[^\"]\", nonce=\"%[^\"]\", stale=%[a-zA-Z]", realm, nonce, stale) == 3) {
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_rtspRealm = (const char *)realm;
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_rtspMd5Nonce = (const char *)nonce;
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return true;
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}
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if (sscanf(paramsStr.data(), "Digest realm=\"%[^\"]\", nonce=\"%[^\"]\"", realm, nonce) == 2) {
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_rtspRealm = (const char *)realm;
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_rtspMd5Nonce = (const char *)nonce;
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return true;
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}
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if (sscanf(paramsStr.data(), "Basic realm=\"%[^\"]\"", realm) == 1) {
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_rtspRealm = (const char *)realm;
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return true;
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}
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return false;
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}
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void RtspPlayer::handleResDESCRIBE(const Parser& parser) {
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string authInfo = parser["WWW-Authenticate"];
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//发送DESCRIBE命令后的回复
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if ((parser.Url() == "401") && handleAuthenticationFailure(authInfo)) {
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sendDescribe();
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return;
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}
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if(parser.Url() == "302" || parser.Url() == "301"){
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auto newUrl = parser["Location"];
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if(newUrl.empty()){
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throw std::runtime_error("未找到Location字段(跳转url)");
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}
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play(newUrl);
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return;
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}
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if (parser.Url() != "200") {
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throw std::runtime_error(
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StrPrinter << "DESCRIBE:" << parser.Url() << " " << parser.Tail() << endl);
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}
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_strContentBase = parser["Content-Base"];
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if(_strContentBase.empty()){
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_strContentBase = _strUrl;
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}
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if (_strContentBase.back() == '/') {
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_strContentBase.pop_back();
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}
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SdpParser sdpParser(parser.Content());
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//解析sdp
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_aTrackInfo = sdpParser.getAvailableTrack();
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auto title = sdpParser.getTrack(TrackTitle);
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bool isPlayback = false;
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if(title && title->_duration ){
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isPlayback = true;
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}
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for(auto &stamp : _stamp){
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stamp.setPlayBack(isPlayback);
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stamp.setRelativeStamp(0);
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}
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if (_aTrackInfo.empty()) {
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throw std::runtime_error("无有效的Sdp Track");
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}
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if (!onCheckSDP(sdpParser.toString())) {
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throw std::runtime_error("onCheckSDP faied");
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}
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sendSetup(0);
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}
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//有必要的情况下创建udp端口
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void RtspPlayer::createUdpSockIfNecessary(int track_idx){
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auto &rtpSockRef = _apRtpSock[track_idx];
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auto &rtcpSockRef = _apRtcpSock[track_idx];
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if(!rtpSockRef){
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rtpSockRef.reset(new Socket(getPoller()));
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//rtp随机端口
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if (!rtpSockRef->bindUdpSock(0, get_local_ip().data())) {
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rtpSockRef.reset();
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throw std::runtime_error("open rtp sock failed");
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}
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}
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if(!rtcpSockRef){
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rtcpSockRef.reset(new Socket(getPoller()));
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//rtcp端口为rtp端口+1，目的是为了兼容某些服务器，其实更推荐随机端口
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if (!rtcpSockRef->bindUdpSock(rtpSockRef->get_local_port() + 1, get_local_ip().data())) {
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rtcpSockRef.reset();
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throw std::runtime_error("open rtcp sock failed");
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}
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}
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if(rtpSockRef->get_local_port() % 2 != 0){
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//如果rtp端口不是偶数，那么与rtcp端口互换，目的是兼容一些要求严格的服务器
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Socket::Ptr tmp = rtpSockRef;
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rtpSockRef = rtcpSockRef;
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rtcpSockRef = tmp;
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}
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}
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//发送SETUP命令
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void RtspPlayer::sendSetup(unsigned int trackIndex) {
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_onHandshake = std::bind(&RtspPlayer::handleResSETUP,this, placeholders::_1,trackIndex);
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auto &track = _aTrackInfo[trackIndex];
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auto baseUrl = _strContentBase + "/" + track->_control_surffix;
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switch (_eType) {
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case Rtsp::RTP_TCP: {
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sendRtspRequest("SETUP",baseUrl,{"Transport",StrPrinter << "RTP/AVP/TCP;unicast;interleaved=" << track->_type * 2 << "-" << track->_type * 2 + 1});
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}
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break;
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case Rtsp::RTP_MULTICAST: {
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sendRtspRequest("SETUP",baseUrl,{"Transport","Transport: RTP/AVP;multicast"});
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}
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break;
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case Rtsp::RTP_UDP: {
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createUdpSockIfNecessary(trackIndex);
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sendRtspRequest("SETUP",baseUrl,{"Transport",
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StrPrinter << "RTP/AVP;unicast;client_port="
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<< _apRtpSock[trackIndex]->get_local_port() << "-"
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<< _apRtcpSock[trackIndex]->get_local_port()});
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}
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break;
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default:
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break;
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}
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}
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void RtspPlayer::handleResSETUP(const Parser &parser, unsigned int uiTrackIndex) {
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if (parser.Url() != "200") {
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throw std::runtime_error(
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StrPrinter << "SETUP:" << parser.Url() << " " << parser.Tail() << endl);
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}
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if (uiTrackIndex == 0) {
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_strSession = parser["Session"];
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_strSession.append(";");
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_strSession = FindField(_strSession.data(), nullptr, ";");
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}
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auto strTransport = parser["Transport"];
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if(strTransport.find("TCP") != string::npos || strTransport.find("interleaved") != string::npos){
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_eType = Rtsp::RTP_TCP;
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}else if(strTransport.find("multicast") != string::npos){
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_eType = Rtsp::RTP_MULTICAST;
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}else{
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_eType = Rtsp::RTP_UDP;
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}
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RtspSplitter::enableRecvRtp(_eType == Rtsp::RTP_TCP);
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if(_eType == Rtsp::RTP_TCP) {
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string interleaved = FindField( FindField((strTransport + ";").data(), "interleaved=", ";").data(), NULL, "-");
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_aTrackInfo[uiTrackIndex]->_interleaved = atoi(interleaved.data());
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}else{
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const char *strPos = (_eType == Rtsp::RTP_MULTICAST ? "port=" : "server_port=") ;
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auto port_str = FindField((strTransport + ";").data(), strPos, ";");
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uint16_t rtp_port = atoi(FindField(port_str.data(), NULL, "-").data());
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uint16_t rtcp_port = atoi(FindField(port_str.data(), "-",NULL).data());
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auto &pRtpSockRef = _apRtpSock[uiTrackIndex];
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auto &pRtcpSockRef = _apRtcpSock[uiTrackIndex];
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if (_eType == Rtsp::RTP_MULTICAST) {
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//udp组播
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auto multiAddr = FindField((strTransport + ";").data(), "destination=", ";");
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pRtpSockRef.reset(new Socket(getPoller()));
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if (!pRtpSockRef->bindUdpSock(rtp_port, multiAddr.data())) {
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pRtpSockRef.reset();
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throw std::runtime_error("open udp sock err");
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}
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auto fd = pRtpSockRef->rawFD();
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if (-1 == SockUtil::joinMultiAddrFilter(fd, multiAddr.data(), get_peer_ip().data(),get_local_ip().data())) {
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SockUtil::joinMultiAddr(fd, multiAddr.data(),get_local_ip().data());
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}
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} else {
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createUdpSockIfNecessary(uiTrackIndex);
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//udp单播
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struct sockaddr_in rtpto;
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rtpto.sin_port = ntohs(rtp_port);
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rtpto.sin_family = AF_INET;
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rtpto.sin_addr.s_addr = inet_addr(get_peer_ip().data());
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pRtpSockRef->setSendPeerAddr((struct sockaddr *)&(rtpto));
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//发送rtp打洞包
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pRtpSockRef->send("\xce\xfa\xed\xfe", 4);
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//设置rtcp发送目标，为后续发送rtcp做准备
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rtpto.sin_port = ntohs(rtcp_port);
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rtpto.sin_family = AF_INET;
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rtpto.sin_addr.s_addr = inet_addr(get_peer_ip().data());
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pRtcpSockRef->setSendPeerAddr((struct sockaddr *)&(rtpto));
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}
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auto srcIP = inet_addr(get_peer_ip().data());
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weak_ptr<RtspPlayer> weakSelf = dynamic_pointer_cast<RtspPlayer>(shared_from_this());
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//设置rtp over udp接收回调处理函数
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pRtpSockRef->setOnRead([srcIP, uiTrackIndex, weakSelf](const Buffer::Ptr &buf, struct sockaddr *addr , int addr_len) {
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auto strongSelf = weakSelf.lock();
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if (!strongSelf) {
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return;
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}
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if (((struct sockaddr_in *) addr)->sin_addr.s_addr != srcIP) {
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WarnL << "收到其他地址的rtp数据:" << inet_ntoa(((struct sockaddr_in *) addr)->sin_addr);
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return;
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}
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strongSelf->handleOneRtp(uiTrackIndex, strongSelf->_aTrackInfo[uiTrackIndex], (unsigned char *) buf->data(), buf->size());
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});
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if(pRtcpSockRef) {
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//设置rtcp over udp接收回调处理函数
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pRtcpSockRef->setOnRead([srcIP, uiTrackIndex, weakSelf](const Buffer::Ptr &buf, struct sockaddr *addr , int addr_len) {
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auto strongSelf = weakSelf.lock();
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if (!strongSelf) {
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return;
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}
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if (((struct sockaddr_in *) addr)->sin_addr.s_addr != srcIP) {
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WarnL << "收到其他地址的rtcp数据:" << inet_ntoa(((struct sockaddr_in *) addr)->sin_addr);
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return;
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}
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strongSelf->onRtcpPacket(uiTrackIndex, strongSelf->_aTrackInfo[uiTrackIndex], (unsigned char *) buf->data(), buf->size());
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});
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}
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}
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if (uiTrackIndex < _aTrackInfo.size() - 1) {
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//需要继续发送SETUP命令
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sendSetup(uiTrackIndex + 1);
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return;
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}
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//所有setup命令发送完毕
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//发送play命令
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sendPause(type_play, 0);
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}
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void RtspPlayer::sendDescribe() {
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//发送DESCRIBE命令后处理函数:handleResDESCRIBE
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_onHandshake = std::bind(&RtspPlayer::handleResDESCRIBE,this, placeholders::_1);
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sendRtspRequest("DESCRIBE",_strUrl,{"Accept","application/sdp"});
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}
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void RtspPlayer::sendPause(int type , uint32_t seekMS){
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_onHandshake = std::bind(&RtspPlayer::handleResPAUSE,this, placeholders::_1,type);
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//开启或暂停rtsp
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switch (type){
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case type_pause:
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sendRtspRequest("PAUSE", _strContentBase);
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break;
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case type_play:
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sendRtspRequest("PLAY", _strContentBase);
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break;
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case type_seek:
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sendRtspRequest("PLAY", _strContentBase, {"Range",StrPrinter << "npt=" << setiosflags(ios::fixed) << setprecision(2) << seekMS / 1000.0 << "-"});
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break;
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default:
|
||
WarnL << "unknown type : " << type;
|
||
_onHandshake = nullptr;
|
||
break;
|
||
}
|
||
}
|
||
void RtspPlayer::pause(bool bPause) {
|
||
sendPause(bPause ? type_pause : type_seek, getProgressMilliSecond());
|
||
}
|
||
|
||
void RtspPlayer::handleResPAUSE(const Parser& parser,int type) {
|
||
if (parser.Url() != "200") {
|
||
switch (type) {
|
||
case type_pause:
|
||
WarnL << "Pause failed:" << parser.Url() << " " << parser.Tail() << endl;
|
||
break;
|
||
case type_play:
|
||
WarnL << "Play failed:" << parser.Url() << " " << parser.Tail() << endl;
|
||
break;
|
||
case type_seek:
|
||
WarnL << "Seek failed:" << parser.Url() << " " << parser.Tail() << endl;
|
||
break;
|
||
}
|
||
return;
|
||
}
|
||
|
||
if (type == type_pause) {
|
||
//暂停成功！
|
||
_pRtpTimer.reset();
|
||
return;
|
||
}
|
||
|
||
//play或seek成功
|
||
uint32_t iSeekTo = 0;
|
||
//修正时间轴
|
||
auto strRange = parser["Range"];
|
||
if (strRange.size()) {
|
||
auto strStart = FindField(strRange.data(), "npt=", "-");
|
||
if (strStart == "now") {
|
||
strStart = "0";
|
||
}
|
||
iSeekTo = 1000 * atof(strStart.data());
|
||
DebugL << "seekTo(ms):" << iSeekTo;
|
||
}
|
||
//设置相对时间戳
|
||
_stamp[0].setRelativeStamp(iSeekTo);
|
||
_stamp[1].setRelativeStamp(iSeekTo);
|
||
onPlayResult_l(SockException(Err_success, type == type_seek ? "resum rtsp success" : "rtsp play success"), type == type_seek);
|
||
}
|
||
|
||
void RtspPlayer::onWholeRtspPacket(Parser &parser) {
|
||
try {
|
||
decltype(_onHandshake) fun;
|
||
_onHandshake.swap(fun);
|
||
if(fun){
|
||
fun(parser);
|
||
}
|
||
parser.Clear();
|
||
} catch (std::exception &err) {
|
||
//定时器_pPlayTimer为空后表明握手结束了
|
||
onPlayResult_l(SockException(Err_other, err.what()),!_pPlayTimer);
|
||
}
|
||
}
|
||
|
||
void RtspPlayer::onRtpPacket(const char *data, uint64_t len) {
|
||
int trackIdx = -1;
|
||
uint8_t interleaved = data[1];
|
||
if(interleaved %2 == 0){
|
||
trackIdx = getTrackIndexByInterleaved(interleaved);
|
||
if (trackIdx != -1) {
|
||
handleOneRtp(trackIdx,_aTrackInfo[trackIdx],(unsigned char *)data + 4, len - 4);
|
||
}
|
||
}else{
|
||
trackIdx = getTrackIndexByInterleaved(interleaved - 1);
|
||
if (trackIdx != -1) {
|
||
onRtcpPacket(trackIdx, _aTrackInfo[trackIdx], (unsigned char *) data + 4, len - 4);
|
||
}
|
||
}
|
||
}
|
||
|
||
void RtspPlayer::onRtcpPacket(int iTrackidx, SdpTrack::Ptr &track, unsigned char *pucData, unsigned int uiLen){
|
||
|
||
}
|
||
|
||
|
||
#if 0
|
||
//改代码提取自FFmpeg，参考之
|
||
// Receiver Report
|
||
avio_w8(pb, (RTP_VERSION << 6) + 1); /* 1 report block */
|
||
avio_w8(pb, RTCP_RR);
|
||
avio_wb16(pb, 7); /* length in words - 1 */
|
||
// our own SSRC: we use the server's SSRC + 1 to avoid conflicts
|
||
avio_wb32(pb, s->ssrc + 1);
|
||
avio_wb32(pb, s->ssrc); // server SSRC
|
||
// some placeholders we should really fill...
|
||
// RFC 1889/p64
|
||
extended_max = stats->cycles + stats->max_seq;
|
||
expected = extended_max - stats->base_seq;
|
||
lost = expected - stats->received;
|
||
lost = FFMIN(lost, 0xffffff); // clamp it since it's only 24 bits...
|
||
expected_interval = expected - stats->expected_prior;
|
||
stats->expected_prior = expected;
|
||
received_interval = stats->received - stats->received_prior;
|
||
stats->received_prior = stats->received;
|
||
lost_interval = expected_interval - received_interval;
|
||
if (expected_interval == 0 || lost_interval <= 0)
|
||
fraction = 0;
|
||
else
|
||
fraction = (lost_interval << 8) / expected_interval;
|
||
|
||
fraction = (fraction << 24) | lost;
|
||
|
||
avio_wb32(pb, fraction); /* 8 bits of fraction, 24 bits of total packets lost */
|
||
avio_wb32(pb, extended_max); /* max sequence received */
|
||
avio_wb32(pb, stats->jitter >> 4); /* jitter */
|
||
|
||
if (s->last_rtcp_ntp_time == AV_NOPTS_VALUE) {
|
||
avio_wb32(pb, 0); /* last SR timestamp */
|
||
avio_wb32(pb, 0); /* delay since last SR */
|
||
} else {
|
||
uint32_t middle_32_bits = s->last_rtcp_ntp_time >> 16; // this is valid, right? do we need to handle 64 bit values special?
|
||
uint32_t delay_since_last = av_rescale(av_gettime_relative() - s->last_rtcp_reception_time,
|
||
65536, AV_TIME_BASE);
|
||
|
||
avio_wb32(pb, middle_32_bits); /* last SR timestamp */
|
||
avio_wb32(pb, delay_since_last); /* delay since last SR */
|
||
}
|
||
|
||
// CNAME
|
||
avio_w8(pb, (RTP_VERSION << 6) + 1); /* 1 report block */
|
||
avio_w8(pb, RTCP_SDES);
|
||
len = strlen(s->hostname);
|
||
avio_wb16(pb, (7 + len + 3) / 4); /* length in words - 1 */
|
||
avio_wb32(pb, s->ssrc + 1);
|
||
avio_w8(pb, 0x01);
|
||
avio_w8(pb, len);
|
||
avio_write(pb, s->hostname, len);
|
||
avio_w8(pb, 0); /* END */
|
||
// padding
|
||
for (len = (7 + len) % 4; len % 4; len++)
|
||
avio_w8(pb, 0);
|
||
#endif
|
||
|
||
void RtspPlayer::sendReceiverReport(bool overTcp,int iTrackIndex){
|
||
static const char s_cname[] = "ZLMediaKitRtsp";
|
||
uint8_t aui8Rtcp[4 + 32 + 10 + sizeof(s_cname) + 1] = {0};
|
||
uint8_t *pui8Rtcp_RR = aui8Rtcp + 4, *pui8Rtcp_SDES = pui8Rtcp_RR + 32;
|
||
auto &track = _aTrackInfo[iTrackIndex];
|
||
auto &counter = _aRtcpCnt[iTrackIndex];
|
||
|
||
aui8Rtcp[0] = '$';
|
||
aui8Rtcp[1] = track->_interleaved + 1;
|
||
aui8Rtcp[2] = (sizeof(aui8Rtcp) - 4) >> 8;
|
||
aui8Rtcp[3] = (sizeof(aui8Rtcp) - 4) & 0xFF;
|
||
|
||
pui8Rtcp_RR[0] = 0x81;/* 1 report block */
|
||
pui8Rtcp_RR[1] = 0xC9;//RTCP_RR
|
||
pui8Rtcp_RR[2] = 0x00;
|
||
pui8Rtcp_RR[3] = 0x07;/* length in words - 1 */
|
||
|
||
uint32_t ssrc=htonl(track->_ssrc + 1);
|
||
// our own SSRC: we use the server's SSRC + 1 to avoid conflicts
|
||
memcpy(&pui8Rtcp_RR[4], &ssrc, 4);
|
||
ssrc=htonl(track->_ssrc);
|
||
// server SSRC
|
||
memcpy(&pui8Rtcp_RR[8], &ssrc, 4);
|
||
|
||
//FIXME: 8 bits of fraction, 24 bits of total packets lost
|
||
pui8Rtcp_RR[12] = 0x00;
|
||
pui8Rtcp_RR[13] = 0x00;
|
||
pui8Rtcp_RR[14] = 0x00;
|
||
pui8Rtcp_RR[15] = 0x00;
|
||
|
||
//FIXME: max sequence received
|
||
int cycleCount = getCycleCount(iTrackIndex);
|
||
pui8Rtcp_RR[16] = cycleCount >> 8;
|
||
pui8Rtcp_RR[17] = cycleCount & 0xFF;
|
||
pui8Rtcp_RR[18] = counter.pktCnt >> 8;
|
||
pui8Rtcp_RR[19] = counter.pktCnt & 0xFF;
|
||
|
||
uint32_t jitter = htonl(getJitterSize(iTrackIndex));
|
||
//FIXME: jitter
|
||
memcpy(pui8Rtcp_RR + 20, &jitter , 4);
|
||
/* last SR timestamp */
|
||
memcpy(pui8Rtcp_RR + 24, &counter.lastTimeStamp, 4);
|
||
uint32_t msInc = htonl(ntohl(counter.timeStamp) - ntohl(counter.lastTimeStamp));
|
||
/* delay since last SR */
|
||
memcpy(pui8Rtcp_RR + 28, &msInc, 4);
|
||
|
||
// CNAME
|
||
pui8Rtcp_SDES[0] = 0x81;
|
||
pui8Rtcp_SDES[1] = 0xCA;
|
||
pui8Rtcp_SDES[2] = 0x00;
|
||
pui8Rtcp_SDES[3] = 0x06;
|
||
|
||
memcpy(&pui8Rtcp_SDES[4], &ssrc, 4);
|
||
|
||
pui8Rtcp_SDES[8] = 0x01;
|
||
pui8Rtcp_SDES[9] = 0x0f;
|
||
memcpy(&pui8Rtcp_SDES[10], s_cname, sizeof(s_cname));
|
||
pui8Rtcp_SDES[10 + sizeof(s_cname)] = 0x00;
|
||
|
||
if(overTcp){
|
||
send(obtainBuffer((char *) aui8Rtcp, sizeof(aui8Rtcp)));
|
||
}else if(_apRtcpSock[iTrackIndex]) {
|
||
_apRtcpSock[iTrackIndex]->send((char *) aui8Rtcp + 4, sizeof(aui8Rtcp) - 4);
|
||
}
|
||
}
|
||
|
||
|
||
void RtspPlayer::onRtpSorted(const RtpPacket::Ptr &rtppt, int trackidx){
|
||
//统计丢包率
|
||
if (_aui16FirstSeq[trackidx] == 0 || rtppt->sequence < _aui16FirstSeq[trackidx]) {
|
||
_aui16FirstSeq[trackidx] = rtppt->sequence;
|
||
_aui64RtpRecv[trackidx] = 0;
|
||
}
|
||
_aui64RtpRecv[trackidx] ++;
|
||
_aui16NowSeq[trackidx] = rtppt->sequence;
|
||
|
||
//计算相对时间戳
|
||
int64_t dts_out;
|
||
_stamp[trackidx].revise(rtppt->timeStamp,rtppt->timeStamp,dts_out,dts_out);
|
||
rtppt->timeStamp = dts_out;
|
||
onRecvRTP_l(rtppt,_aTrackInfo[trackidx]);
|
||
}
|
||
float RtspPlayer::getPacketLossRate(TrackType type) const{
|
||
int iTrackIdx = getTrackIndexByTrackType(type);
|
||
if(iTrackIdx == -1){
|
||
uint64_t totalRecv = 0;
|
||
uint64_t totalSend = 0;
|
||
for (unsigned int i = 0; i < _aTrackInfo.size(); i++) {
|
||
totalRecv += _aui64RtpRecv[i];
|
||
totalSend += (_aui16NowSeq[i] - _aui16FirstSeq[i] + 1);
|
||
}
|
||
if(totalSend == 0){
|
||
return 0;
|
||
}
|
||
return 1.0 - (double)totalRecv / totalSend;
|
||
}
|
||
|
||
if(_aui16NowSeq[iTrackIdx] - _aui16FirstSeq[iTrackIdx] + 1 == 0){
|
||
return 0;
|
||
}
|
||
return 1.0 - (double)_aui64RtpRecv[iTrackIdx] / (_aui16NowSeq[iTrackIdx] - _aui16FirstSeq[iTrackIdx] + 1);
|
||
}
|
||
|
||
uint32_t RtspPlayer::getProgressMilliSecond() const{
|
||
return MAX(_stamp[0].getRelativeStamp(),_stamp[1].getRelativeStamp());
|
||
}
|
||
void RtspPlayer::seekToMilliSecond(uint32_t ms) {
|
||
sendPause(type_seek,ms);
|
||
}
|
||
|
||
void RtspPlayer::sendRtspRequest(const string &cmd, const string &url, const std::initializer_list<string> &header) {
|
||
string key;
|
||
StrCaseMap header_map;
|
||
int i = 0;
|
||
for(auto &val : header){
|
||
if(++i % 2 == 0){
|
||
header_map.emplace(key,val);
|
||
}else{
|
||
key = val;
|
||
}
|
||
}
|
||
sendRtspRequest(cmd,url,header_map);
|
||
}
|
||
void RtspPlayer::sendRtspRequest(const string &cmd, const string &url,const StrCaseMap &header_const) {
|
||
auto header = header_const;
|
||
header.emplace("CSeq",StrPrinter << _uiCseq++);
|
||
header.emplace("User-Agent",SERVER_NAME "(build in " __DATE__ " " __TIME__ ")");
|
||
|
||
if(!_strSession.empty()){
|
||
header.emplace("Session",_strSession);
|
||
}
|
||
|
||
if(!_rtspRealm.empty() && !(*this)[kRtspUser].empty()){
|
||
if(!_rtspMd5Nonce.empty()){
|
||
//MD5认证
|
||
/*
|
||
response计算方法如下：
|
||
RTSP客户端应该使用username + password并计算response如下:
|
||
(1)当password为MD5编码,则
|
||
response = md5( password:nonce:md5(public_method:url) );
|
||
(2)当password为ANSI字符串,则
|
||
response= md5( md5(username:realm:password):nonce:md5(public_method:url) );
|
||
*/
|
||
string encrypted_pwd = (*this)[kRtspPwd];
|
||
if(!(*this)[kRtspPwdIsMD5].as<bool>()){
|
||
encrypted_pwd = MD5((*this)[kRtspUser]+ ":" + _rtspRealm + ":" + encrypted_pwd).hexdigest();
|
||
}
|
||
auto response = MD5( encrypted_pwd + ":" + _rtspMd5Nonce + ":" + MD5(cmd + ":" + url).hexdigest()).hexdigest();
|
||
_StrPrinter printer;
|
||
printer << "Digest ";
|
||
printer << "username=\"" << (*this)[kRtspUser] << "\", ";
|
||
printer << "realm=\"" << _rtspRealm << "\", ";
|
||
printer << "nonce=\"" << _rtspMd5Nonce << "\", ";
|
||
printer << "uri=\"" << url << "\", ";
|
||
printer << "response=\"" << response << "\"";
|
||
header.emplace("Authorization",printer);
|
||
}else if(!(*this)[kRtspPwdIsMD5].as<bool>()){
|
||
//base64认证
|
||
string authStr = StrPrinter << (*this)[kRtspUser] << ":" << (*this)[kRtspPwd];
|
||
char authStrBase64[1024] = {0};
|
||
av_base64_encode(authStrBase64,sizeof(authStrBase64),(uint8_t *)authStr.data(),authStr.size());
|
||
header.emplace("Authorization",StrPrinter << "Basic " << authStrBase64 );
|
||
}
|
||
}
|
||
|
||
_StrPrinter printer;
|
||
printer << cmd << " " << url << " RTSP/1.0\r\n";
|
||
for (auto &pr : header){
|
||
printer << pr.first << ": " << pr.second << "\r\n";
|
||
}
|
||
send(printer << "\r\n");
|
||
}
|
||
|
||
void RtspPlayer::onRecvRTP_l(const RtpPacket::Ptr &pkt, const SdpTrack::Ptr &track) {
|
||
_rtpTicker.resetTime();
|
||
onRecvRTP(pkt,track);
|
||
|
||
int iTrackIndex = getTrackIndexByInterleaved(pkt->interleaved);
|
||
if(iTrackIndex == -1){
|
||
return;
|
||
}
|
||
RtcpCounter &counter = _aRtcpCnt[iTrackIndex];
|
||
counter.pktCnt = pkt->sequence;
|
||
auto &ticker = _aRtcpTicker[iTrackIndex];
|
||
if (ticker.elapsedTime() > 5 * 1000) {
|
||
//send rtcp every 5 second
|
||
counter.lastTimeStamp = counter.timeStamp;
|
||
//直接保存网络字节序
|
||
memcpy(&counter.timeStamp, pkt->data() + 8 , 4);
|
||
if(counter.lastTimeStamp != 0){
|
||
sendReceiverReport(_eType == Rtsp::RTP_TCP,iTrackIndex);
|
||
ticker.resetTime();
|
||
}
|
||
}
|
||
|
||
|
||
}
|
||
void RtspPlayer::onPlayResult_l(const SockException &ex , bool handshakeCompleted) {
|
||
WarnL << ex.getErrCode() << " " << ex.what();
|
||
|
||
if(!ex){
|
||
//播放成功，恢复rtp接收超时定时器
|
||
_rtpTicker.resetTime();
|
||
weak_ptr<RtspPlayer> weakSelf = dynamic_pointer_cast<RtspPlayer>(shared_from_this());
|
||
int timeoutMS = (*this)[kMediaTimeoutMS].as<int>();
|
||
//创建rtp数据接收超时检测定时器
|
||
_pRtpTimer.reset( new Timer(timeoutMS / 2000.0, [weakSelf,timeoutMS]() {
|
||
auto strongSelf=weakSelf.lock();
|
||
if(!strongSelf) {
|
||
return false;
|
||
}
|
||
if(strongSelf->_rtpTicker.elapsedTime()> timeoutMS) {
|
||
//接收rtp媒体数据包超时
|
||
strongSelf->onPlayResult_l(SockException(Err_timeout,"receive rtp timeout"), true);
|
||
return false;
|
||
}
|
||
return true;
|
||
},getPoller()));
|
||
}
|
||
|
||
if (!handshakeCompleted) {
|
||
//开始播放阶段
|
||
_pPlayTimer.reset();
|
||
onPlayResult(ex);
|
||
} else if (ex) {
|
||
//播放成功后异常断开回调
|
||
onShutdown(ex);
|
||
} else {
|
||
//恢复播放
|
||
onResume();
|
||
}
|
||
|
||
if(ex){
|
||
teardown();
|
||
}
|
||
}
|
||
|
||
int RtspPlayer::getTrackIndexByInterleaved(int interleaved) const{
|
||
for (unsigned int i = 0; i < _aTrackInfo.size(); i++) {
|
||
if (_aTrackInfo[i]->_interleaved == interleaved) {
|
||
return i;
|
||
}
|
||
}
|
||
if(_aTrackInfo.size() == 1){
|
||
return 0;
|
||
}
|
||
return -1;
|
||
}
|
||
|
||
int RtspPlayer::getTrackIndexByTrackType(TrackType trackType) const {
|
||
for (unsigned int i = 0; i < _aTrackInfo.size(); i++) {
|
||
if (_aTrackInfo[i]->_type == trackType) {
|
||
return i;
|
||
}
|
||
}
|
||
if(_aTrackInfo.size() == 1){
|
||
return 0;
|
||
}
|
||
return -1;
|
||
}
|
||
|
||
} /* namespace mediakit */
|
||
|
||
|