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修复海康rtsp点播拉流seek相关bug(#2501 #2511)

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xiongguangjie 2023-05-31 09:59:41 +08:00 committed by GitHub
parent 0232caf068
commit 11a39c68c4
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1 changed files with 170 additions and 177 deletions
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347
src/Rtsp/RtspPlayer.cpp
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@ -8,40 +8,35 @@
* may be found in the AUTHORS file in the root of the source tree.
*/
#include <set>
#include <cmath>
#include <algorithm>
#include <iomanip>
#include "Common/config.h"
#include "RtspPlayer.h"
#include "Util/MD5.h"
#include "Util/base64.h"
#include "Common/config.h"
#include "Rtcp/Rtcp.h"
#include "Rtcp/RtcpContext.h"
#include "RtspMediaSource.h"
#include "RtspDemuxer.h"
#include "RtspMediaSource.h"
#include "RtspPlayerImp.h"
#include "Util/MD5.h"
#include "Util/base64.h"
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <set>
using namespace toolkit;
using namespace std;
namespace mediakit {
enum PlayType {
type_play = 0,
type_pause,
type_seek,
type_speed
};
enum PlayType { type_play = 0, type_pause, type_seek, type_speed };
RtspPlayer::RtspPlayer(const EventPoller::Ptr &poller) : TcpClient(poller){
}
RtspPlayer::RtspPlayer(const EventPoller::Ptr &poller)
: TcpClient(poller) {}
RtspPlayer::~RtspPlayer(void) {
DebugL << endl;
}
void RtspPlayer::sendTeardown(){
void RtspPlayer::sendTeardown() {
if (alive()) {
if (!_content_base.empty()) {
sendRtspRequest("TEARDOWN", _content_base);
@ -50,7 +45,7 @@ void RtspPlayer::sendTeardown(){
}
}
void RtspPlayer::teardown(){
void RtspPlayer::teardown() {
sendTeardown();
_md5_nonce.clear();
_realm.clear();
@ -69,7 +64,7 @@ void RtspPlayer::teardown(){
_on_response = nullptr;
}
void RtspPlayer::play(const string &strUrl){
void RtspPlayer::play(const string &strUrl) {
RtspUrl url;
try {
url.parse(strUrl);
@ -94,32 +89,35 @@ void RtspPlayer::play(const string &strUrl){
weak_ptr<RtspPlayer> weakSelf = static_pointer_cast<RtspPlayer>(shared_from_this());
float playTimeOutSec = (*this)[Client::kTimeoutMS].as<int>() / 1000.0f;
_play_check_timer.reset(new Timer(playTimeOutSec, [weakSelf]() {
auto strongSelf=weakSelf.lock();
if(!strongSelf) {
_play_check_timer.reset(new Timer(
playTimeOutSec,
[weakSelf]() {
auto strongSelf = weakSelf.lock();
if (!strongSelf) {
return false;
}
strongSelf->onPlayResult_l(SockException(Err_timeout, "play rtsp timeout"), false);
return false;
}
strongSelf->onPlayResult_l(SockException(Err_timeout,"play rtsp timeout"),false);
return false;
}, getPoller()));
},
getPoller()));
if(!(*this)[Client::kNetAdapter].empty()){
if (!(*this)[Client::kNetAdapter].empty()) {
setNetAdapter((*this)[Client::kNetAdapter]);
}
startConnect(url._host, url._port, playTimeOutSec);
}
void RtspPlayer::onConnect(const SockException &err){
if(err.getErrCode() != Err_success) {
onPlayResult_l(err,false);
void RtspPlayer::onConnect(const SockException &err) {
if (err.getErrCode() != Err_success) {
onPlayResult_l(err, false);
return;
}
sendOptions();
}
void RtspPlayer::onRecv(const Buffer::Ptr& buf) {
if(_benchmark_mode && !_play_check_timer){
//在性能测试模式下，如果rtsp握手完毕后，不再解析rtp包
void RtspPlayer::onRecv(const Buffer::Ptr &buf) {
if (_benchmark_mode && !_play_check_timer) {
// 在性能测试模式下，如果rtsp握手完毕后，不再解析rtp包
_rtp_recv_ticker.resetTime();
return;
}
@ -132,21 +130,21 @@ void RtspPlayer::onRecv(const Buffer::Ptr& buf) {
}
void RtspPlayer::onError(const SockException &ex) {
//定时器_pPlayTimer为空后表明握手结束了
onPlayResult_l(ex,!_play_check_timer);
// 定时器_pPlayTimer为空后表明握手结束了
onPlayResult_l(ex, !_play_check_timer);
}
// from live555
bool RtspPlayer::handleAuthenticationFailure(const string &paramsStr) {
if(!_realm.empty()){
//已经认证过了
if (!_realm.empty()) {
// 已经认证过了
return false;
}
char *realm = new char[paramsStr.size()];
char *nonce = new char[paramsStr.size()];
char *stale = new char[paramsStr.size()];
onceToken token(nullptr,[&](){
onceToken token(nullptr, [&]() {
delete[] realm;
delete[] nonce;
delete[] stale;
@ -169,16 +167,16 @@ bool RtspPlayer::handleAuthenticationFailure(const string &paramsStr) {
return false;
}
bool RtspPlayer::handleResponse(const string &cmd, const Parser &parser){
bool RtspPlayer::handleResponse(const string &cmd, const Parser &parser) {
string authInfo = parser["WWW-Authenticate"];
//发送DESCRIBE命令后的回复
// 发送DESCRIBE命令后的回复
if ((parser.Url() == "401") && handleAuthenticationFailure(authInfo)) {
sendOptions();
return false;
}
if(parser.Url() == "302" || parser.Url() == "301"){
if (parser.Url() == "302" || parser.Url() == "301") {
auto newUrl = parser["Location"];
if(newUrl.empty()){
if (newUrl.empty()) {
throw std::runtime_error("未找到Location字段(跳转url)");
}
play(newUrl);
@ -190,19 +188,19 @@ bool RtspPlayer::handleResponse(const string &cmd, const Parser &parser){
return true;
}
void RtspPlayer::handleResDESCRIBE(const Parser& parser) {
void RtspPlayer::handleResDESCRIBE(const Parser &parser) {
if (!handleResponse("DESCRIBE", parser)) {
return;
}
_content_base = parser["Content-Base"];
if(_content_base.empty()){
if (_content_base.empty()) {
_content_base = _play_url;
}
if (_content_base.back() == '/') {
_content_base.pop_back();
}
//解析sdp
// 解析sdp
SdpParser sdpParser(parser.Content());
string sdp;
@ -224,16 +222,16 @@ void RtspPlayer::handleResDESCRIBE(const Parser& parser) {
}
_rtcp_context.clear();
for (auto &track : _sdp_track) {
if(track->_pt != 0xff){
setPayloadType(_rtcp_context.size(),track->_pt);
if (track->_pt != 0xff) {
setPayloadType(_rtcp_context.size(), track->_pt);
}
_rtcp_context.emplace_back(std::make_shared<RtcpContextForRecv>());
}
sendSetup(0);
}
//有必要的情况下创建udp端口
void RtspPlayer::createUdpSockIfNecessary(int track_idx){
// 有必要的情况下创建udp端口
void RtspPlayer::createUdpSockIfNecessary(int track_idx) {
auto &rtpSockRef = _rtp_sock[track_idx];
auto &rtcpSockRef = _rtcp_sock[track_idx];
if (!rtpSockRef || !rtcpSockRef) {
@ -244,30 +242,27 @@ void RtspPlayer::createUdpSockIfNecessary(int track_idx){
}
}
//发送SETUP命令
// 发送SETUP命令
void RtspPlayer::sendSetup(unsigned int track_idx) {
_on_response = std::bind(&RtspPlayer::handleResSETUP, this, placeholders::_1, track_idx);
auto &track = _sdp_track[track_idx];
auto control_url = track->getControlUrl(_content_base);
switch (_rtp_type) {
case Rtsp::RTP_TCP: {
sendRtspRequest("SETUP", control_url, {"Transport", StrPrinter << "RTP/AVP/TCP;unicast;interleaved=" << track->_type * 2 << "-" << track->_type * 2 + 1});
}
break;
sendRtspRequest(
"SETUP", control_url, { "Transport", StrPrinter << "RTP/AVP/TCP;unicast;interleaved=" << track->_type * 2 << "-" << track->_type * 2 + 1 });
} break;
case Rtsp::RTP_MULTICAST: {
sendRtspRequest("SETUP", control_url, {"Transport", "RTP/AVP;multicast"});
}
break;
sendRtspRequest("SETUP", control_url, { "Transport", "RTP/AVP;multicast" });
} break;
case Rtsp::RTP_UDP: {
createUdpSockIfNecessary(track_idx);
sendRtspRequest("SETUP", control_url, {"Transport",
StrPrinter << "RTP/AVP;unicast;client_port="
<< _rtp_sock[track_idx]->get_local_port() << "-"
<< _rtcp_sock[track_idx]->get_local_port()});
}
break;
default:
break;
sendRtspRequest(
"SETUP", control_url,
{ "Transport",
StrPrinter << "RTP/AVP;unicast;client_port=" << _rtp_sock[track_idx]->get_local_port() << "-" << _rtcp_sock[track_idx]->get_local_port() });
} break;
default: break;
}
}
@ -292,9 +287,9 @@ void RtspPlayer::handleResSETUP(const Parser &parser, unsigned int track_idx) {
auto transport_map = Parser::parseArgs(strTransport, ";", "=");
RtspSplitter::enableRecvRtp(_rtp_type == Rtsp::RTP_TCP);
string ssrc = transport_map["ssrc"];
if(!ssrc.empty()){
if (!ssrc.empty()) {
sscanf(ssrc.data(), "%x", &_sdp_track[track_idx]->_ssrc);
} else{
} else {
_sdp_track[track_idx]->_ssrc = 0;
}
@ -310,47 +305,47 @@ void RtspPlayer::handleResSETUP(const Parser &parser, unsigned int track_idx) {
auto &pRtcpSockRef = _rtcp_sock[track_idx];
if (_rtp_type == Rtsp::RTP_MULTICAST) {
//udp组播
auto multiAddr = transport_map["destination"];
// udp组播
auto multiAddr = transport_map["destination"];
pRtpSockRef = createSocket();
//目前组播仅支持ipv4
// 目前组播仅支持ipv4
if (!pRtpSockRef->bindUdpSock(rtp_port, "0.0.0.0")) {
pRtpSockRef.reset();
throw std::runtime_error("open udp sock err");
}
auto fd = pRtpSockRef->rawFD();
if (-1 == SockUtil::joinMultiAddrFilter(fd, multiAddr.data(), get_peer_ip().data(),get_local_ip().data())) {
SockUtil::joinMultiAddr(fd, multiAddr.data(),get_local_ip().data());
if (-1 == SockUtil::joinMultiAddrFilter(fd, multiAddr.data(), get_peer_ip().data(), get_local_ip().data())) {
SockUtil::joinMultiAddr(fd, multiAddr.data(), get_local_ip().data());
}
//设置rtcp发送端口
// 设置rtcp发送端口
pRtcpSockRef = createSocket();
//目前组播仅支持ipv4
// 目前组播仅支持ipv4
if (!pRtcpSockRef->bindUdpSock(0, "0.0.0.0")) {
//分配端口失败
// 分配端口失败
throw runtime_error("open udp socket failed");
}
//设置发送地址和发送端口
// 设置发送地址和发送端口
auto dst = SockUtil::make_sockaddr(get_peer_ip().data(), rtcp_port);
pRtcpSockRef->bindPeerAddr((struct sockaddr *)&(dst));
} else {
createUdpSockIfNecessary(track_idx);
//udp单播
// udp单播
auto dst = SockUtil::make_sockaddr(get_peer_ip().data(), rtp_port);
pRtpSockRef->bindPeerAddr((struct sockaddr *)&(dst));
//发送rtp打洞包
// 发送rtp打洞包
pRtpSockRef->send("\xce\xfa\xed\xfe", 4);
dst = SockUtil::make_sockaddr(get_peer_ip().data(), rtcp_port);
//设置rtcp发送目标，为后续发送rtcp做准备
// 设置rtcp发送目标，为后续发送rtcp做准备
pRtcpSockRef->bindPeerAddr((struct sockaddr *)&(dst));
}
auto peer_ip = get_peer_ip();
weak_ptr<RtspPlayer> weakSelf = static_pointer_cast<RtspPlayer>(shared_from_this());
//设置rtp over udp接收回调处理函数
pRtpSockRef->setOnRead([peer_ip, track_idx, weakSelf](const Buffer::Ptr &buf, struct sockaddr *addr , int addr_len) {
// 设置rtp over udp接收回调处理函数
pRtpSockRef->setOnRead([peer_ip, track_idx, weakSelf](const Buffer::Ptr &buf, struct sockaddr *addr, int addr_len) {
auto strongSelf = weakSelf.lock();
if (!strongSelf) {
return;
@ -359,13 +354,13 @@ void RtspPlayer::handleResSETUP(const Parser &parser, unsigned int track_idx) {
WarnL << "收到其他地址的rtp数据:" << SockUtil::inet_ntoa(addr);
return;
}
strongSelf->handleOneRtp(track_idx, strongSelf->_sdp_track[track_idx]->_type,
strongSelf->_sdp_track[track_idx]->_samplerate, (uint8_t *) buf->data(), buf->size());
strongSelf->handleOneRtp(
track_idx, strongSelf->_sdp_track[track_idx]->_type, strongSelf->_sdp_track[track_idx]->_samplerate, (uint8_t *)buf->data(), buf->size());
});
if(pRtcpSockRef) {
//设置rtcp over udp接收回调处理函数
pRtcpSockRef->setOnRead([peer_ip, track_idx, weakSelf](const Buffer::Ptr &buf, struct sockaddr *addr , int addr_len) {
if (pRtcpSockRef) {
// 设置rtcp over udp接收回调处理函数
pRtcpSockRef->setOnRead([peer_ip, track_idx, weakSelf](const Buffer::Ptr &buf, struct sockaddr *addr, int addr_len) {
auto strongSelf = weakSelf.lock();
if (!strongSelf) {
return;
@ -374,68 +369,66 @@ void RtspPlayer::handleResSETUP(const Parser &parser, unsigned int track_idx) {
WarnL << "收到其他地址的rtcp数据:" << SockUtil::inet_ntoa(addr);
return;
}
strongSelf->onRtcpPacket(track_idx, strongSelf->_sdp_track[track_idx], (uint8_t *) buf->data(), buf->size());
strongSelf->onRtcpPacket(track_idx, strongSelf->_sdp_track[track_idx], (uint8_t *)buf->data(), buf->size());
});
}
}
if (track_idx < _sdp_track.size() - 1) {
//需要继续发送SETUP命令
// 需要继续发送SETUP命令
sendSetup(track_idx + 1);
return;
}
//所有setup命令发送完毕
//发送play命令
// 所有setup命令发送完毕
// 发送play命令
sendPause(type_play, 0);
}
void RtspPlayer::sendDescribe() {
//发送DESCRIBE命令后处理函数:handleResDESCRIBE
// 发送DESCRIBE命令后处理函数:handleResDESCRIBE
_on_response = std::bind(&RtspPlayer::handleResDESCRIBE, this, placeholders::_1);
sendRtspRequest("DESCRIBE", _play_url, {"Accept", "application/sdp"});
sendRtspRequest("DESCRIBE", _play_url, { "Accept", "application/sdp" });
}
void RtspPlayer::sendOptions(){
_on_response = [this](const Parser& parser){
void RtspPlayer::sendOptions() {
_on_response = [this](const Parser &parser) {
if (!handleResponse("OPTIONS", parser)) {
return;
}
//获取服务器支持的命令
// 获取服务器支持的命令
_supported_cmd.clear();
auto public_val = split(parser["Public"],",");
for(auto &cmd : public_val){
auto public_val = split(parser["Public"], ",");
for (auto &cmd : public_val) {
trim(cmd);
_supported_cmd.emplace(cmd);
}
//发送Describe请求，获取sdp
// 发送Describe请求，获取sdp
sendDescribe();
};
sendRtspRequest("OPTIONS", _play_url);
}
void RtspPlayer::sendKeepAlive(){
void RtspPlayer::sendKeepAlive() {
_on_response = [](const Parser &parser) {};
if(_supported_cmd.find("GET_PARAMETER") != _supported_cmd.end()){
//支持GET_PARAMETER，用此命令保活
if (_supported_cmd.find("GET_PARAMETER") != _supported_cmd.end()) {
// 支持GET_PARAMETER，用此命令保活
sendRtspRequest("GET_PARAMETER", _content_base);
}else{
//不支持GET_PARAMETER，用OPTIONS命令保活
} else {
// 不支持GET_PARAMETER，用OPTIONS命令保活
sendRtspRequest("OPTIONS", _play_url);
}
}
void RtspPlayer::sendPause(int type , uint32_t seekMS){
void RtspPlayer::sendPause(int type, uint32_t seekMS) {
_on_response = std::bind(&RtspPlayer::handleResPAUSE, this, placeholders::_1, type);
//开启或暂停rtsp
switch (type){
case type_pause:
sendRtspRequest("PAUSE", _content_base);
break;
// 开启或暂停rtsp
switch (type) {
case type_pause: sendRtspRequest("PAUSE", _content_base); break;
case type_play:
sendRtspRequest("PLAY", _content_base);
break;
// sendRtspRequest("PLAY", _content_base);
// break;
case type_seek:
sendRtspRequest("PLAY", _content_base, {"Range",StrPrinter << "npt=" << setiosflags(ios::fixed) << setprecision(2) << seekMS / 1000.0 << "-"});
sendRtspRequest("PLAY", _content_base, { "Range", StrPrinter << "npt=" << setiosflags(ios::fixed) << setprecision(2) << seekMS / 1000.0 << "-" });
break;
default:
WarnL << "unknown type : " << type;
@ -449,35 +442,31 @@ void RtspPlayer::pause(bool bPause) {
}
void RtspPlayer::speed(float speed) {
sendRtspRequest("PLAY", _content_base, {"Scale", StrPrinter << speed});
sendRtspRequest("PLAY", _content_base, { "Scale", StrPrinter << speed });
}
void RtspPlayer::handleResPAUSE(const Parser& parser,int type) {
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_pause: WarnL << "Pause failed:" << parser.Url() << " " << parser.Tail() << endl; break;
case type_play:
WarnL << "Play failed:" << parser.Url() << " " << parser.Tail() << endl;
onPlayResult_l(SockException(Err_shutdown, StrPrinter << "rtsp play failed:" << parser.Url() << " " << parser.Tail() ), !_play_check_timer);
break;
case type_seek:
WarnL << "Seek failed:" << parser.Url() << " " << parser.Tail() << endl;
onPlayResult_l(SockException(Err_shutdown, StrPrinter << "rtsp play failed:" << parser.Url() << " " << parser.Tail()), !_play_check_timer);
break;
case type_seek: WarnL << "Seek failed:" << parser.Url() << " " << parser.Tail() << endl; break;
}
return;
}
if (type == type_pause) {
//暂停成功！
// 暂停成功！
_rtp_check_timer.reset();
return;
}
//play或seek成功
// play或seek成功
uint32_t iSeekTo = 0;
//修正时间轴
// 修正时间轴
auto strRange = parser["Range"];
if (strRange.size()) {
auto strStart = FindField(strRange.data(), "npt=", "-");
@ -495,54 +484,56 @@ void RtspPlayer::onWholeRtspPacket(Parser &parser) {
try {
decltype(_on_response) func;
_on_response.swap(func);
if(func){
if (func) {
func(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()),!_play_check_timer);
// 定时器_pPlayTimer为空后表明握手结束了
onPlayResult_l(SockException(Err_other, err.what()), !_play_check_timer);
}
}
void RtspPlayer::onRtpPacket(const char *data, size_t len) {
int trackIdx = -1;
uint8_t interleaved = data[1];
if(interleaved %2 == 0){
if (interleaved % 2 == 0) {
trackIdx = getTrackIndexByInterleaved(interleaved);
if (trackIdx == -1) {
return;
}
handleOneRtp(trackIdx, _sdp_track[trackIdx]->_type, _sdp_track[trackIdx]->_samplerate, (uint8_t *)data + RtpPacket::kRtpTcpHeaderSize, len - RtpPacket::kRtpTcpHeaderSize);
}else{
handleOneRtp(
trackIdx, _sdp_track[trackIdx]->_type, _sdp_track[trackIdx]->_samplerate, (uint8_t *)data + RtpPacket::kRtpTcpHeaderSize,
len - RtpPacket::kRtpTcpHeaderSize);
} else {
trackIdx = getTrackIndexByInterleaved(interleaved - 1);
if (trackIdx == -1) {
return;
}
onRtcpPacket(trackIdx, _sdp_track[trackIdx], (uint8_t *) data + RtpPacket::kRtpTcpHeaderSize, len - RtpPacket::kRtpTcpHeaderSize);
onRtcpPacket(trackIdx, _sdp_track[trackIdx], (uint8_t *)data + RtpPacket::kRtpTcpHeaderSize, len - RtpPacket::kRtpTcpHeaderSize);
}
}
//此处预留rtcp处理函数
void RtspPlayer::onRtcpPacket(int track_idx, SdpTrack::Ptr &track, uint8_t *data, size_t len){
auto rtcp_arr = RtcpHeader::loadFromBytes((char *) data, len);
// 此处预留rtcp处理函数
void RtspPlayer::onRtcpPacket(int track_idx, SdpTrack::Ptr &track, uint8_t *data, size_t len) {
auto rtcp_arr = RtcpHeader::loadFromBytes((char *)data, len);
for (auto &rtcp : rtcp_arr) {
_rtcp_context[track_idx]->onRtcp(rtcp);
if ((RtcpType) rtcp->pt == RtcpType::RTCP_SR) {
auto sr = (RtcpSR *) (rtcp);
//设置rtp时间戳与ntp时间戳的对应关系
if ((RtcpType)rtcp->pt == RtcpType::RTCP_SR) {
auto sr = (RtcpSR *)(rtcp);
// 设置rtp时间戳与ntp时间戳的对应关系
setNtpStamp(track_idx, sr->rtpts, sr->getNtpUnixStampMS());
}
}
}
void RtspPlayer::onRtpSorted(RtpPacket::Ptr rtppt, int trackidx){
void RtspPlayer::onRtpSorted(RtpPacket::Ptr rtppt, int trackidx) {
_stamp[trackidx] = rtppt->getStampMS();
_rtp_recv_ticker.resetTime();
onRecvRTP(std::move(rtppt), _sdp_track[trackidx]);
}
float RtspPlayer::getPacketLossRate(TrackType type) const{
float RtspPlayer::getPacketLossRate(TrackType type) const {
size_t lost = 0, expected = 0;
try {
auto track_idx = getTrackIndexByTrackType(type);
@ -558,32 +549,32 @@ float RtspPlayer::getPacketLossRate(TrackType type) const{
if (!expected) {
return 0;
}
return (float) (double(lost) / double(expected));
return (float)(double(lost) / double(expected));
}
uint32_t RtspPlayer::getProgressMilliSecond() const{
return MAX(_stamp[0],_stamp[1]);
uint32_t RtspPlayer::getProgressMilliSecond() const {
return MAX(_stamp[0], _stamp[1]);
}
void RtspPlayer::seekToMilliSecond(uint32_t ms) {
sendPause(type_seek,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{
for (auto &val : header) {
if (++i % 2 == 0) {
header_map.emplace(key, val);
} else {
key = val;
}
}
sendRtspRequest(cmd,url,header_map);
sendRtspRequest(cmd, url, header_map);
}
void RtspPlayer::sendRtspRequest(const string &cmd, const string &url,const StrCaseMap &header_const) {
void RtspPlayer::sendRtspRequest(const string &cmd, const string &url, const StrCaseMap &header_const) {
auto header = header_const;
header.emplace("CSeq", StrPrinter << _cseq_send++);
header.emplace("User-Agent", kServerName);
@ -624,44 +615,49 @@ void RtspPlayer::sendRtspRequest(const string &cmd, const string &url,const StrC
}
_StrPrinter printer;
printer << cmd << " " << url << " RTSP/1.0\r\n";
for (auto &pr : header){
if (cmd == "PLAY") {
printer << cmd << " " << _play_url << " RTSP/1.0\r\n";
} else {
printer << cmd << " " << url << " RTSP/1.0\r\n";
}
for (auto &pr : header) {
printer << pr.first << ": " << pr.second << "\r\n";
}
printer << "\r\n";
SockSender::send(std::move(printer));
}
void RtspPlayer::onBeforeRtpSorted(const RtpPacket::Ptr &rtp, int track_idx){
void RtspPlayer::onBeforeRtpSorted(const RtpPacket::Ptr &rtp, int track_idx) {
auto &rtcp_ctx = _rtcp_context[track_idx];
rtcp_ctx->onRtp(rtp->getSeq(), rtp->getStamp(), rtp->ntp_stamp, rtp->sample_rate, rtp->size() - RtpPacket::kRtpTcpHeaderSize);
auto &ticker = _rtcp_send_ticker[track_idx];
if (ticker.elapsedTime() < 3 * 1000) {
//时间未到
// 时间未到
return;
}
auto &rtcp_flag = _send_rtcp[track_idx];
//每3秒发送一次心跳，rtcp与rtsp信令轮流心跳，该特性用于兼容issue:642
//有些rtsp服务器需要rtcp保活，有些需要发送信令保活
// 每3秒发送一次心跳，rtcp与rtsp信令轮流心跳，该特性用于兼容issue:642
// 有些rtsp服务器需要rtcp保活，有些需要发送信令保活
//发送信令保活
// 发送信令保活
if (!rtcp_flag) {
if (track_idx == 0) {
sendKeepAlive();
}
ticker.resetTime();
//下次发送rtcp保活
// 下次发送rtcp保活
rtcp_flag = true;
return;
}
//发送rtcp
// 发送rtcp
static auto send_rtcp = [](RtspPlayer *thiz, int index, Buffer::Ptr ptr) {
if (thiz->_rtp_type == Rtsp::RTP_TCP) {
auto &track = thiz->_sdp_track[index];
thiz->send(makeRtpOverTcpPrefix((uint16_t) (ptr->size()), track->_interleaved + 1));
thiz->send(makeRtpOverTcpPrefix((uint16_t)(ptr->size()), track->_interleaved + 1));
thiz->send(std::move(ptr));
} else {
thiz->_rtcp_sock[index]->send(std::move(ptr));
@ -670,39 +666,39 @@ void RtspPlayer::onBeforeRtpSorted(const RtpPacket::Ptr &rtp, int track_idx){
auto ssrc = rtp->getSSRC();
auto rtcp = rtcp_ctx->createRtcpRR(ssrc + 1, ssrc);
auto rtcp_sdes = RtcpSdes::create({kServerName});
rtcp_sdes->chunks.type = (uint8_t) SdesType::RTCP_SDES_CNAME;
auto rtcp_sdes = RtcpSdes::create({ kServerName });
rtcp_sdes->chunks.type = (uint8_t)SdesType::RTCP_SDES_CNAME;
rtcp_sdes->chunks.ssrc = htonl(ssrc);
send_rtcp(this, track_idx, std::move(rtcp));
send_rtcp(this, track_idx, RtcpHeader::toBuffer(rtcp_sdes));
ticker.resetTime();
//下次发送信令保活
// 下次发送信令保活
rtcp_flag = false;
}
void RtspPlayer::onPlayResult_l(const SockException &ex , bool handshake_done) {
void RtspPlayer::onPlayResult_l(const SockException &ex, bool handshake_done) {
if (ex.getErrCode() == Err_shutdown) {
//主动shutdown的，不触发回调
// 主动shutdown的，不触发回调
return;
}
WarnL << ex.getErrCode() << " " << ex.what();
if (!handshake_done) {
//开始播放阶段
// 开始播放阶段
_play_check_timer.reset();
onPlayResult(ex);
//是否为性能测试模式
// 是否为性能测试模式
_benchmark_mode = (*this)[Client::kBenchmarkMode].as<int>();
} else if (ex) {
//播放成功后异常断开回调
// 播放成功后异常断开回调
onShutdown(ex);
} else {
//恢复播放
// 恢复播放
onResume();
}
if (!ex) {
//播放成功，恢复rtp接收超时定时器
// 播放成功，恢复rtp接收超时定时器
_rtp_recv_ticker.resetTime();
auto timeoutMS = (*this)[Client::kMediaTimeoutMS].as<uint64_t>();
weak_ptr<RtspPlayer> weakSelf = static_pointer_cast<RtspPlayer>(shared_from_this());
@ -712,13 +708,13 @@ void RtspPlayer::onPlayResult_l(const SockException &ex , bool handshake_done) {
return false;
}
if (strongSelf->_rtp_recv_ticker.elapsedTime() > timeoutMS) {
//接收rtp媒体数据包超时
// 接收rtp媒体数据包超时
strongSelf->onPlayResult_l(SockException(Err_timeout, "receive rtp timeout"), true);
return false;
}
return true;
};
//创建rtp数据接收超时检测定时器
// 创建rtp数据接收超时检测定时器
_rtp_check_timer = std::make_shared<Timer>(timeoutMS / 2000.0f, lam, getPoller());
} else {
sendTeardown();
@ -752,8 +748,7 @@ int RtspPlayer::getTrackIndexByTrackType(TrackType track_type) const {
///////////////////////////////////////////////////
// RtspPlayerImp
float RtspPlayerImp::getDuration() const
{
float RtspPlayerImp::getDuration() const {
return _demuxer ? _demuxer->getDuration() : 0;
}
@ -770,13 +765,11 @@ void RtspPlayerImp::addTrackCompleted() {
}
}
std::vector<Track::Ptr> RtspPlayerImp::getTracks(bool ready /*= true*/) const
{
std::vector<Track::Ptr> RtspPlayerImp::getTracks(bool ready /*= true*/) const {
return _demuxer ? _demuxer->getTracks(ready) : Super::getTracks(ready);
}
bool RtspPlayerImp::onCheckSDP(const std::string &sdp)
{
bool RtspPlayerImp::onCheckSDP(const std::string &sdp) {
_rtsp_media_src = std::dynamic_pointer_cast<RtspMediaSource>(_media_src);
if (_rtsp_media_src) {
_rtsp_media_src->setSdp(sdp);
@ -788,7 +781,7 @@ bool RtspPlayerImp::onCheckSDP(const std::string &sdp)
}
void RtspPlayerImp::onRecvRTP(RtpPacket::Ptr rtp, const SdpTrack::Ptr &track) {
//rtp解复用时可以判断是否为关键帧起始位置
// rtp解复用时可以判断是否为关键帧起始位置
auto key_pos = _demuxer->inputRtp(rtp);
if (_rtsp_media_src) {
_rtsp_media_src->onWrite(std::move(rtp), key_pos);