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rtsp/rtmp推流支持断连续推: #1240, #1300

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This commit is contained in:
ziyue 2022-01-10 16:37:50 +08:00
parent 262af8dfeb
commit f5efd232a9
10 changed files with 240 additions and 130 deletions
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2
README.md
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@ -112,6 +112,8 @@
- 支持虚拟主机,可以隔离不同域名
- 支持按需拉流，无人观看自动关断拉流
- 支持先拉流后推流，提高及时推流画面打开率
- 支持先播放后推流
- 支持推流异常断开重连续推播放器不断开
- 提供c api sdk
- 支持FFmpeg拉流代理任意格式的流
- 支持http api生成并返回实时截图

4
conf/config.ini
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@ -89,6 +89,10 @@ wait_track_ready_ms=10000
wait_add_track_ms=3000
#如果track未就绪，我们先缓存帧数据，但是有最大个数限制，防止内存溢出
unready_frame_cache=100
#推流断开后可以在超时时间内重新连接上继续推流，这样播放器会接着播放。
#置0关闭此特性(推流断开会导致立即断开播放器)
#此参数不应大于播放器超时时间
continue_push_ms=15000
[hls]
#hls写文件的buf大小，调整参数可以提高文件io性能

22
src/Common/MediaSource.cpp
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@ -85,6 +85,20 @@ const string& MediaSource::getId() const {
return _stream_id;
}
std::shared_ptr<void> MediaSource::getOwnership() {
if (_owned.test_and_set()) {
//已经被所有
return nullptr;
}
weak_ptr<MediaSource> weak_self = shared_from_this();
return std::shared_ptr<void>(this, [weak_self](void *ptr) {
auto strong_self = weak_self.lock();
if (strong_self) {
strong_self->_owned.clear();
}
});
}
int MediaSource::getBytesSpeed(TrackType type){
if(type == TrackInvalid){
return _speed[TrackVideo].getSpeed() + _speed[TrackAudio].getSpeed();
@ -419,8 +433,12 @@ void MediaSource::regist() {
//减小互斥锁临界区
lock_guard<recursive_mutex> lock(s_media_source_mtx);
auto &ref = s_media_source_map[_schema][_vhost][_app][_stream_id];
// 增加判断, 防止当前流已注册时再次注册
if (ref.lock() && ref.lock().get() != this) {
auto src = ref.lock();
if (src) {
if (src.get() == this) {
return;
}
//增加判断, 防止当前流已注册时再次注册
throw std::invalid_argument("media source already existed:" + _schema + "/" + _vhost + "/" + _app + "/" + _stream_id);
}
ref = shared_from_this();

5
src/Common/MediaSource.h
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@ -13,6 +13,7 @@
#include <mutex>
#include <string>
#include <atomic>
#include <memory>
#include <functional>
#include <unordered_map>
@ -219,6 +220,9 @@ public:
// 流id
const string& getId() const;
//获取对象所有权
std::shared_ptr<void> getOwnership();
// 获取所有Track
vector<Track::Ptr> getTracks(bool ready = true) const override;
@ -301,6 +305,7 @@ protected:
BytesSpeed _speed[TrackMax];
private:
atomic_flag _owned { false };
time_t _create_stamp;
Ticker _ticker;
string _schema;

2
src/Common/config.cpp
View File

@ -78,6 +78,7 @@ const string kEnableAudio = GENERAL_FIELD"enable_audio";
const string kWaitTrackReadyMS = GENERAL_FIELD"wait_track_ready_ms";
const string kWaitAddTrackMS = GENERAL_FIELD"wait_add_track_ms";
const string kUnreadyFrameCache = GENERAL_FIELD"unready_frame_cache";
const string kContinuePushMS = GENERAL_FIELD"continue_push_ms";
onceToken token([](){
mINI::Instance()[kFlowThreshold] = 1024;
@ -100,6 +101,7 @@ onceToken token([](){
mINI::Instance()[kWaitTrackReadyMS] = 10000;
mINI::Instance()[kWaitAddTrackMS] = 3000;
mINI::Instance()[kUnreadyFrameCache] = 100;
mINI::Instance()[kContinuePushMS] = 15 * 1000;
},nullptr);
}//namespace General

3
src/Common/config.h
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@ -193,6 +193,9 @@ extern const string kWaitTrackReadyMS;
extern const string kWaitAddTrackMS;
//如果track未就绪，我们先缓存帧数据，但是有最大个数限制(100帧时大约4秒)，防止内存溢出
extern const string kUnreadyFrameCache;
//推流断开后可以在超时时间内重新连接上继续推流，这样播放器会接着播放。
//置0关闭此特性(推流断开会导致立即断开播放器)
extern const string kContinuePushMS;
}//namespace General

228
src/Rtmp/RtmpSession.cpp
View File

@ -24,9 +24,9 @@ RtmpSession::~RtmpSession() {
}
void RtmpSession::onError(const SockException& err) {
bool isPlayer = !_publisher_src;
uint64_t duration = _ticker.createdTime()/1000;
WarnP(this) << (isPlayer ? "RTMP播放器(" : "RTMP推流器(")
bool is_player = !_push_src;
uint64_t duration = _ticker.createdTime() / 1000;
WarnP(this) << (is_player ? "RTMP播放器(" : "RTMP推流器(")
<< _media_info._vhost << "/"
<< _media_info._app << "/"
<< _media_info._streamid
@ -34,26 +34,35 @@ void RtmpSession::onError(const SockException& err) {
<< ",耗时(s):" << duration;
//流量统计事件广播
GET_CONFIG(uint32_t,iFlowThreshold,General::kFlowThreshold);
GET_CONFIG(uint32_t, iFlowThreshold, General::kFlowThreshold);
if(_total_bytes >= iFlowThreshold * 1024){
NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastFlowReport, _media_info, _total_bytes, duration, isPlayer, static_cast<SockInfo &>(*this));
if (_total_bytes >= iFlowThreshold * 1024) {
NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastFlowReport, _media_info, _total_bytes, duration, is_player, static_cast<SockInfo &>(*this));
}
GET_CONFIG(uint32_t, continue_push_ms, General::kContinuePushMS);
if (_push_src && continue_push_ms) {
//取消所有权
_push_src_ownership = nullptr;
//延时10秒注销流
auto push_src = std::move(_push_src);
getPoller()->doDelayTask(continue_push_ms, [push_src]() { return 0; });
}
}
void RtmpSession::onManager() {
GET_CONFIG(uint32_t,handshake_sec,Rtmp::kHandshakeSecond);
GET_CONFIG(uint32_t,keep_alive_sec,Rtmp::kKeepAliveSecond);
GET_CONFIG(uint32_t, handshake_sec, Rtmp::kHandshakeSecond);
GET_CONFIG(uint32_t, keep_alive_sec, Rtmp::kKeepAliveSecond);
if (_ticker.createdTime() > handshake_sec * 1000) {
if (!_ring_reader && !_publisher_src) {
shutdown(SockException(Err_timeout,"illegal connection"));
if (!_ring_reader && !_push_src) {
shutdown(SockException(Err_timeout, "illegal connection"));
}
}
if (_publisher_src) {
//publisher
if (_push_src) {
// push
if (_ticker.elapsedTime() > keep_alive_sec * 1000) {
shutdown(SockException(Err_timeout,"recv data from rtmp pusher timeout"));
shutdown(SockException(Err_timeout, "recv data from rtmp pusher timeout"));
}
}
}
@ -121,31 +130,61 @@ void RtmpSession::onCmd_publish(AMFDecoder &dec) {
_media_info.parse(_tc_url + "/" + getStreamId(dec.load<std::string>()));
_media_info._schema = RTMP_SCHEMA;
auto on_res = [this,pToken](const string &err, bool enableHls, bool enableMP4){
auto src = dynamic_pointer_cast<RtmpMediaSource>(MediaSource::find(RTMP_SCHEMA,
_media_info._vhost,
_media_info._app,
_media_info._streamid));
bool auth_success = err.empty();
bool ok = (!src && !_publisher_src && auth_success);
AMFValue status(AMF_OBJECT);
status.set("level", ok ? "status" : "error");
status.set("code", ok ? "NetStream.Publish.Start" : (auth_success ? "NetStream.Publish.BadName" : "NetStream.Publish.BadAuth"));
status.set("description", ok ? "Started publishing stream." : (auth_success ? "Already publishing." : err.data()));
status.set("clientid", "0");
sendReply("onStatus", nullptr, status);
if (!ok) {
string errMsg = StrPrinter << (auth_success ? "already publishing:" : err.data()) << " "
<< _media_info._vhost << " "
<< _media_info._app << " "
<< _media_info._streamid;
shutdown(SockException(Err_shutdown,errMsg));
auto on_res = [this, pToken](const string &err, bool enableHls, bool enableMP4) {
if (!err.empty()) {
sendStatus({ "level", "error",
"code", "NetStream.Publish.BadAuth",
"description", err,
"clientid", "0" });
shutdown(SockException(Err_shutdown, StrPrinter << "Unauthorized:" << err));
return;
}
_publisher_src.reset(new RtmpMediaSourceImp(_media_info._vhost, _media_info._app, _media_info._streamid));
_publisher_src->setListener(dynamic_pointer_cast<MediaSourceEvent>(shared_from_this()));
//设置转协议
_publisher_src->setProtocolTranslation(enableHls, enableMP4);
assert(!_push_src);
auto src = MediaSource::find(RTMP_SCHEMA, _media_info._vhost, _media_info._app, _media_info._streamid);
auto push_failed = (bool)src;
while (src) {
//尝试断连后继续推流
auto rtmp_src = dynamic_pointer_cast<RtmpMediaSourceImp>(src);
if (!rtmp_src) {
//源不是rtmp推流产生的
break;
}
auto ownership = rtmp_src->getOwnership();
if (!ownership) {
//获取推流源所有权失败
break;
}
_push_src = std::move(rtmp_src);
_push_src_ownership = std::move(ownership);
push_failed = false;
break;
}
if (push_failed) {
sendStatus({"level", "error",
"code", "NetStream.Publish.BadName",
"description", "Already publishing.",
"clientid", "0" });
shutdown(SockException(Err_shutdown, StrPrinter << "Already publishing:" << err));
return;
}
if (!_push_src) {
_push_src = std::make_shared<RtmpMediaSourceImp>(_media_info._vhost, _media_info._app, _media_info._streamid);
//获取所有权
_push_src_ownership = _push_src->getOwnership();
_push_src->setProtocolTranslation(enableHls, enableMP4);
}
_push_src->setListener(dynamic_pointer_cast<MediaSourceEvent>(shared_from_this()));
sendStatus({"level", "status",
"code", "NetStream.Publish.Start",
"description", "Started publishing stream.",
"clientid", "0" });
setSocketFlags();
};
@ -178,15 +217,27 @@ void RtmpSession::onCmd_publish(AMFDecoder &dec) {
}
void RtmpSession::onCmd_deleteStream(AMFDecoder &dec) {
AMFValue status(AMF_OBJECT);
status.set("level", "status");
status.set("code", "NetStream.Unpublish.Success");
status.set("description", "Stop publishing.");
sendReply("onStatus", nullptr, status);
sendStatus({ "level", "status",
"code", "NetStream.Unpublish.Success",
"description", "Stop publishing." });
throw std::runtime_error(StrPrinter << "Stop publishing" << endl);
}
void RtmpSession::sendPlayResponse(const string &err,const RtmpMediaSource::Ptr &src){
void RtmpSession::sendStatus(const std::initializer_list<string> &key_value) {
AMFValue status(AMF_OBJECT);
int i = 0;
string key;
for (auto &val : key_value) {
if (++i % 2 == 0) {
status.set(key, val);
} else {
key = val;
}
}
sendReply("onStatus", nullptr, status);
}
void RtmpSession::sendPlayResponse(const string &err, const RtmpMediaSource::Ptr &src) {
bool auth_success = err.empty();
bool ok = (src.operator bool() && auth_success);
if (ok) {
@ -194,13 +245,12 @@ void RtmpSession::sendPlayResponse(const string &err,const RtmpMediaSource::Ptr
sendUserControl(CONTROL_STREAM_BEGIN, STREAM_MEDIA);
}
// onStatus(NetStream.Play.Reset)
AMFValue status(AMF_OBJECT);
status.set("level", ok ? "status" : "error");
status.set("code", ok ? "NetStream.Play.Reset" : (auth_success ? "NetStream.Play.StreamNotFound" : "NetStream.Play.BadAuth"));
status.set("description", ok ? "Resetting and playing." : (auth_success ? "No such stream." : err.data()));
status.set("details", _media_info._streamid);
status.set("clientid", "0");
sendReply("onStatus", nullptr, status);
sendStatus({ "level", (ok ? "status" : "error"),
"code", (ok ? "NetStream.Play.Reset" : (auth_success ? "NetStream.Play.StreamNotFound" : "NetStream.Play.BadAuth")),
"description", (ok ? "Resetting and playing." : (auth_success ? "No such stream." : err.data())),
"details", _media_info._streamid,
"clientid", "0" });
if (!ok) {
string err_msg = StrPrinter << (auth_success ? "no such stream:" : err.data()) << " "
<< _media_info._vhost << " "
@ -211,13 +261,12 @@ void RtmpSession::sendPlayResponse(const string &err,const RtmpMediaSource::Ptr
}
// onStatus(NetStream.Play.Start)
status.clear();
status.set("level", "status");
status.set("code", "NetStream.Play.Start");
status.set("description", "Started playing.");
status.set("details", _media_info._streamid);
status.set("clientid", "0");
sendReply("onStatus", nullptr, status);
sendStatus({ "level", "status",
"code", "NetStream.Play.Start",
"description", "Started playing." ,
"details", _media_info._streamid,
"clientid", "0"});
// |RtmpSampleAccess(true, true)
AMFEncoder invoke;
@ -232,13 +281,11 @@ void RtmpSession::sendPlayResponse(const string &err,const RtmpMediaSource::Ptr
sendResponse(MSG_DATA, invoke.data());
//onStatus(NetStream.Play.PublishNotify)
status.clear();
status.set("level", "status");
status.set("code", "NetStream.Play.PublishNotify");
status.set("description", "Now published.");
status.set("details", _media_info._streamid);
status.set("clientid", "0");
sendReply("onStatus", nullptr, status);
sendStatus({ "level", "status",
"code", "NetStream.Play.PublishNotify",
"description", "Now published." ,
"details", _media_info._streamid,
"clientid", "0"});
auto &metadata = src->getMetaData();
if(metadata){
@ -280,7 +327,7 @@ void RtmpSession::sendPlayResponse(const string &err,const RtmpMediaSource::Ptr
strongSelf->shutdown(SockException(Err_shutdown,"rtmp ring buffer detached"));
});
src->pause(false);
_player_src = src;
_play_src = src;
//提高服务器发送性能
setSocketFlags();
}
@ -386,14 +433,14 @@ void RtmpSession::onCmd_pause(AMFDecoder &dec) {
dec.load<AMFValue>();/* NULL */
bool paused = dec.load<bool>();
TraceP(this) << paused;
AMFValue status(AMF_OBJECT);
status.set("level", "status");
status.set("code", paused ? "NetStream.Pause.Notify" : "NetStream.Unpause.Notify");
status.set("description", paused ? "Paused stream." : "Unpaused stream.");
sendReply("onStatus", nullptr, status);
sendStatus({ "level", "status",
"code", (paused ? "NetStream.Pause.Notify" : "NetStream.Unpause.Notify"),
"description", (paused ? "Paused stream." : "Unpaused stream.")});
//streamBegin
sendUserControl(paused ? CONTROL_STREAM_EOF : CONTROL_STREAM_BEGIN, STREAM_MEDIA);
auto strongSrc = _player_src.lock();
auto strongSrc = _play_src.lock();
if (strongSrc) {
strongSrc->pause(paused);
}
@ -405,17 +452,16 @@ void RtmpSession::onCmd_playCtrl(AMFDecoder &dec) {
int ctrlType = ctrlObj["ctrlType"].as_integer();
float speed = ctrlObj["speed"].as_number();
AMFValue status(AMF_OBJECT);
status.set("level", "status");
status.set("code", "NetStream.Speed.Notify");
status.set("description", "Speeding");
sendReply("onStatus", nullptr, status);
sendStatus({ "level", "status",
"code", "NetStream.Speed.Notify",
"description", "Speeding"});
//streamBegin
sendUserControl(CONTROL_STREAM_EOF, STREAM_MEDIA);
auto stongSrc = _player_src.lock();
if (stongSrc) {
stongSrc->speed(speed);
auto strong_src = _play_src.lock();
if (strong_src) {
strong_src->speed(speed);
}
}
@ -424,7 +470,7 @@ void RtmpSession::setMetaData(AMFDecoder &dec) {
if (type != "onMetaData") {
throw std::runtime_error("can only set metadata");
}
_publisher_metadata = dec.load<AMFValue>();
_push_metadata = dec.load<AMFValue>();
}
void RtmpSession::onProcessCmd(AMFDecoder &dec) {
@ -471,7 +517,7 @@ void RtmpSession::onRtmpChunk(RtmpPacket::Ptr packet) {
setMetaData(dec);
} else if (type == "onMetaData") {
//兼容某些不规范的推流器
_publisher_metadata = dec.load<AMFValue>();
_push_metadata = dec.load<AMFValue>();
} else {
TraceP(this) << "unknown notify:" << type;
}
@ -480,8 +526,8 @@ void RtmpSession::onRtmpChunk(RtmpPacket::Ptr packet) {
case MSG_AUDIO:
case MSG_VIDEO: {
if (!_publisher_src) {
WarnL << "Not a rtmp publisher!";
if (!_push_src) {
WarnL << "Not a rtmp push!";
return;
}
GET_CONFIG(bool, rtmp_modify_stamp, Rtmp::kModifyStamp);
@ -493,9 +539,9 @@ void RtmpSession::onRtmpChunk(RtmpPacket::Ptr packet) {
if (!_set_meta_data) {
_set_meta_data = true;
_publisher_src->setMetaData(_publisher_metadata ? _publisher_metadata : TitleMeta().getMetadata());
_push_src->setMetaData(_push_metadata ? _push_metadata : TitleMeta().getMetadata());
}
_publisher_src->onWrite(std::move(packet));
_push_src->onWrite(std::move(packet));
break;
}
@ -507,15 +553,13 @@ void RtmpSession::onRtmpChunk(RtmpPacket::Ptr packet) {
void RtmpSession::onCmd_seek(AMFDecoder &dec) {
dec.load<AMFValue>();/* NULL */
AMFValue status(AMF_OBJECT);
status.set("level", "status");
status.set("code", "NetStream.Seek.Notify");
status.set("description", "Seeking.");
sendReply("onStatus", nullptr, status);
sendStatus({ "level", "status",
"code", "NetStream.Seek.Notify",
"description", "Seeking."});
auto milliSeconds = (uint32_t)(dec.load<AMFValue>().as_number());
InfoP(this) << "rtmp seekTo(ms):" << milliSeconds;
auto strong_src = _player_src.lock();
auto strong_src = _play_src.lock();
if (strong_src) {
strong_src->seekTo(milliSeconds);
}
@ -527,7 +571,7 @@ void RtmpSession::onSendMedia(const RtmpPacket::Ptr &pkt) {
bool RtmpSession::close(MediaSource &sender,bool force) {
//此回调在其他线程触发
if(!_publisher_src || (!force && _publisher_src->totalReaderCount())){
if(!_push_src || (!force && _push_src->totalReaderCount())){
return false;
}
string err = StrPrinter << "close media:" << sender.getSchema() << "/" << sender.getVhost() << "/" << sender.getApp() << "/" << sender.getId() << " " << force;
@ -536,7 +580,7 @@ bool RtmpSession::close(MediaSource &sender,bool force) {
}
int RtmpSession::totalReaderCount(MediaSource &sender) {
return _publisher_src ? _publisher_src->totalReaderCount() : sender.readerCount();
return _push_src ? _push_src->totalReaderCount() : sender.readerCount();
}
MediaOriginType RtmpSession::getOriginType(MediaSource &sender) const{

8
src/Rtmp/RtmpSession.h
View File

@ -85,6 +85,7 @@ private:
void setSocketFlags();
string getStreamId(const string &str);
void dumpMetadata(const AMFValue &metadata);
void sendStatus(const std::initializer_list<string> &key_value);
private:
bool _set_meta_data = false;
@ -97,9 +98,10 @@ private:
//数据接收超时计时器
Ticker _ticker;
MediaInfo _media_info;
std::weak_ptr<RtmpMediaSource> _player_src;
AMFValue _publisher_metadata;
std::shared_ptr<RtmpMediaSourceImp> _publisher_src;
std::weak_ptr<RtmpMediaSource> _play_src;
AMFValue _push_metadata;
RtmpMediaSourceImp::Ptr _push_src;
std::shared_ptr<void> _push_src_ownership;
RtmpMediaSource::RingType::RingReader::Ptr _ring_reader;
};

92
src/Rtsp/RtspSession.cpp
View File

@ -60,9 +60,9 @@ RtspSession::~RtspSession() {
}
void RtspSession::onError(const SockException &err) {
bool isPlayer = !_push_src;
bool is_player = !_push_src;
uint64_t duration = _alive_ticker.createdTime() / 1000;
WarnP(this) << (isPlayer ? "RTSP播放器(" : "RTSP推流器(")
WarnP(this) << (is_player ? "RTSP播放器(" : "RTSP推流器(")
<< _media_info._vhost << "/"
<< _media_info._app << "/"
<< _media_info._streamid
@ -81,16 +81,24 @@ void RtspSession::onError(const SockException &err) {
}
//流量统计事件广播
GET_CONFIG(uint32_t,iFlowThreshold,General::kFlowThreshold);
if(_bytes_usage >= iFlowThreshold * 1024){
NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastFlowReport, _media_info, _bytes_usage, duration, isPlayer, static_cast<SockInfo &>(*this));
GET_CONFIG(uint32_t, iFlowThreshold, General::kFlowThreshold);
if (_bytes_usage >= iFlowThreshold * 1024) {
NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastFlowReport, _media_info, _bytes_usage, duration, is_player, static_cast<SockInfo &>(*this));
}
GET_CONFIG(uint32_t, continue_push_ms, General::kContinuePushMS);
if (_push_src && continue_push_ms) {
//取消所有权
_push_src_ownership = nullptr;
//延时10秒注销流
auto push_src = std::move(_push_src);
getPoller()->doDelayTask(continue_push_ms, [push_src]() { return 0; });
}
}
void RtspSession::onManager() {
GET_CONFIG(uint32_t,handshake_sec,Rtsp::kHandshakeSecond);
GET_CONFIG(uint32_t,keep_alive_sec,Rtsp::kKeepAliveSecond);
GET_CONFIG(uint32_t, handshake_sec, Rtsp::kHandshakeSecond);
GET_CONFIG(uint32_t, keep_alive_sec, Rtsp::kKeepAliveSecond);
if (_alive_ticker.createdTime() > handshake_sec * 1000) {
if (_sessionid.size() == 0) {
@ -198,20 +206,6 @@ void RtspSession::handleReq_Options(const Parser &parser) {
}
void RtspSession::handleReq_ANNOUNCE(const Parser &parser) {
auto src = dynamic_pointer_cast<RtspMediaSource>(MediaSource::find(RTSP_SCHEMA,
_media_info._vhost,
_media_info._app,
_media_info._streamid));
if (src) {
sendRtspResponse("406 Not Acceptable", {"Content-Type", "text/plain"}, "Already publishing.");
string err = StrPrinter << "ANNOUNCE:"
<< "Already publishing:"
<< _media_info._vhost << " "
<< _media_info._app << " "
<< _media_info._streamid << endl;
throw SockException(Err_shutdown, err);
}
auto full_url = parser.FullUrl();
_content_base = full_url;
if (end_with(full_url, ".sdp")) {
@ -227,21 +221,50 @@ void RtspSession::handleReq_ANNOUNCE(const Parser &parser) {
throw SockException(Err_shutdown, StrPrinter << err << ":" << full_url);
}
auto onRes = [this, parser, full_url](const string &err, bool enableHls, bool enableMP4){
bool authSuccess = err.empty();
if (!authSuccess) {
sendRtspResponse("401 Unauthorized", {"Content-Type", "text/plain"}, err);
auto onRes = [this, parser, full_url](const string &err, bool enableHls, bool enableMP4) {
if (!err.empty()) {
sendRtspResponse("401 Unauthorized", { "Content-Type", "text/plain" }, err);
shutdown(SockException(Err_shutdown, StrPrinter << "401 Unauthorized:" << err));
return;
}
assert(!_push_src);
auto src = MediaSource::find(RTSP_SCHEMA, _media_info._vhost, _media_info._app, _media_info._streamid);
auto push_failed = (bool)src;
while (src) {
//尝试断连后继续推流
auto rtsp_src = dynamic_pointer_cast<RtspMediaSourceImp>(src);
if (!rtsp_src) {
//源不是rtmp推流产生的
break;
}
auto ownership = rtsp_src->getOwnership();
if (!ownership) {
//获取推流源所有权失败
break;
}
_push_src = std::move(rtsp_src);
_push_src_ownership = std::move(ownership);
push_failed = false;
break;
}
if (push_failed) {
sendRtspResponse("406 Not Acceptable", { "Content-Type", "text/plain" }, "Already publishing.");
string err = StrPrinter << "ANNOUNCE:"
<< "Already publishing:" << _media_info._vhost << " " << _media_info._app << " "
<< _media_info._streamid << endl;
throw SockException(Err_shutdown, err);
}
SdpParser sdpParser(parser.Content());
_sessionid = makeRandStr(12);
_sdp_track = sdpParser.getAvailableTrack();
if (_sdp_track.empty()) {
//sdp无效
// sdp无效
static constexpr auto err = "sdp中无有效track";
sendRtspResponse("403 Forbidden", {"Content-Type", "text/plain"}, err);
sendRtspResponse("403 Forbidden", { "Content-Type", "text/plain" }, err);
shutdown(SockException(Err_shutdown, StrPrinter << err << ":" << full_url));
return;
}
@ -249,11 +272,16 @@ void RtspSession::handleReq_ANNOUNCE(const Parser &parser) {
for (auto &track : _sdp_track) {
_rtcp_context.emplace_back(std::make_shared<RtcpContextForRecv>());
}
auto push_src = std::make_shared<RtspMediaSourceImp>(_media_info._vhost, _media_info._app, _media_info._streamid);
push_src->setListener(dynamic_pointer_cast<MediaSourceEvent>(shared_from_this()));
push_src->setProtocolTranslation(enableHls, enableMP4);
push_src->setSdp(parser.Content());
_push_src = std::move(push_src);
if (!_push_src) {
_push_src = std::make_shared<RtspMediaSourceImp>(_media_info._vhost, _media_info._app, _media_info._streamid);
//获取所有权
_push_src_ownership = _push_src->getOwnership();
_push_src->setProtocolTranslation(enableHls, enableMP4);
_push_src->setSdp(parser.Content());
}
_push_src->setListener(dynamic_pointer_cast<MediaSourceEvent>(shared_from_this()));
sendRtspResponse("200 OK");
};

4
src/Rtsp/RtspSession.h
View File

@ -185,7 +185,9 @@ private:
//url解析后保存的相关信息
MediaInfo _media_info;
//rtsp推流相关绑定的源
RtspMediaSource::Ptr _push_src;
RtspMediaSourceImp::Ptr _push_src;
//推流器所有权
std::shared_ptr<void> _push_src_ownership;
//rtsp播放器绑定的直播源
std::weak_ptr<RtspMediaSource> _play_src;
//直播源读取器