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移除MultiMuxerPrivate对象，修复rtp发送时无sps pps帧的问题

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This commit is contained in:
ziyue 2021-07-20 11:51:26 +08:00
parent 902c25ae67
commit 4b34e58d3c
3 changed files with 249 additions and 340 deletions
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482
src/Common/MultiMediaSourceMuxer.cpp
View File

@ -18,95 +18,6 @@ namespace toolkit {
namespace mediakit {
///////////////////////////////MultiMuxerPrivate//////////////////////////////////
MultiMuxerPrivate::~MultiMuxerPrivate() {}
MultiMuxerPrivate::MultiMuxerPrivate(const string &vhost, const string &app, const string &stream, float dur_sec,
bool enable_rtsp, bool enable_rtmp, bool enable_hls, bool enable_mp4) {
_stream_url = vhost + " " + app + " " + stream;
if (enable_rtmp) {
_rtmp = std::make_shared<RtmpMediaSourceMuxer>(vhost, app, stream, std::make_shared<TitleMeta>(dur_sec));
}
if (enable_rtsp) {
_rtsp = std::make_shared<RtspMediaSourceMuxer>(vhost, app, stream, std::make_shared<TitleSdp>(dur_sec));
}
if (enable_hls) {
_hls = dynamic_pointer_cast<HlsRecorder>(Recorder::createRecorder(Recorder::type_hls, vhost, app, stream));
}
if (enable_mp4) {
_mp4 = Recorder::createRecorder(Recorder::type_mp4, vhost, app, stream);
}
_ts = std::make_shared<TSMediaSourceMuxer>(vhost, app, stream);
#if defined(ENABLE_MP4)
_fmp4 = std::make_shared<FMP4MediaSourceMuxer>(vhost, app, stream);
#endif
}
void MultiMuxerPrivate::resetTracks() {
if (_rtmp) {
_rtmp->resetTracks();
}
if (_rtsp) {
_rtsp->resetTracks();
}
if (_ts) {
_ts->resetTracks();
}
#if defined(ENABLE_MP4)
if (_fmp4) {
_fmp4->resetTracks();
}
#endif
//拷贝智能指针，目的是为了防止跨线程调用设置录像相关api导致的线程竞争问题
auto hls = _hls;
if (hls) {
hls->resetTracks();
}
auto mp4 = _mp4;
if (mp4) {
mp4->resetTracks();
}
}
void MultiMuxerPrivate::setMediaListener(const std::weak_ptr<MediaSourceEvent> &listener) {
_listener = listener;
if (_rtmp) {
_rtmp->setListener(listener);
}
if (_rtsp) {
_rtsp->setListener(listener);
}
if (_ts) {
_ts->setListener(listener);
}
#if defined(ENABLE_MP4)
if (_fmp4) {
_fmp4->setListener(listener);
}
#endif
auto hls = _hls;
if (hls) {
hls->setListener(listener);
}
}
int MultiMuxerPrivate::totalReaderCount() const {
auto hls = _hls;
return (_rtsp ? _rtsp->readerCount() : 0) +
(_rtmp ? _rtmp->readerCount() : 0) +
(_ts ? _ts->readerCount() : 0) +
#if defined(ENABLE_MP4)
(_fmp4 ? _fmp4->readerCount() : 0) +
#endif
(hls ? hls->readerCount() : 0);
}
static std::shared_ptr<MediaSinkInterface> makeRecorder(MediaSource &sender, const vector<Track::Ptr> &tracks, Recorder::type type, const string &custom_path, size_t max_second){
auto recorder = Recorder::createRecorder(type, sender.getVhost(), sender.getApp(), sender.getId(), custom_path, max_second);
for (auto &track : tracks) {
@ -115,129 +26,6 @@ static std::shared_ptr<MediaSinkInterface> makeRecorder(MediaSource &sender, con
return recorder;
}
//此函数可能跨线程调用
bool MultiMuxerPrivate::setupRecord(MediaSource &sender, Recorder::type type, bool start, const string &custom_path, size_t max_second){
switch (type) {
case Recorder::type_hls : {
if (start && !_hls) {
//开始录制
auto hls = dynamic_pointer_cast<HlsRecorder>(makeRecorder(sender, getTracks(true), type, custom_path, max_second));
if (hls) {
//设置HlsMediaSource的事件监听器
hls->setListener(_listener);
}
_hls = hls;
} else if (!start && _hls) {
//停止录制
_hls = nullptr;
}
return true;
}
case Recorder::type_mp4 : {
if (start && !_mp4) {
//开始录制
_mp4 = makeRecorder(sender, getTracks(true), type, custom_path, max_second);
} else if (!start && _mp4) {
//停止录制
_mp4 = nullptr;
}
return true;
}
default : return false;
}
}
//此函数可能跨线程调用
bool MultiMuxerPrivate::isRecording(MediaSource &sender, Recorder::type type){
switch (type){
case Recorder::type_hls :
return _hls ? true : false;
case Recorder::type_mp4 :
return _mp4 ? true : false;
default:
return false;
}
}
void MultiMuxerPrivate::setTimeStamp(uint32_t stamp) {
if (_rtmp) {
_rtmp->setTimeStamp(stamp);
}
if (_rtsp) {
_rtsp->setTimeStamp(stamp);
}
}
void MultiMuxerPrivate::setTrackListener(Listener *listener) {
_track_listener = listener;
}
void MultiMuxerPrivate::onTrackReady(const Track::Ptr &track) {
if (_rtmp) {
_rtmp->addTrack(track);
}
if (_rtsp) {
_rtsp->addTrack(track);
}
if (_ts) {
_ts->addTrack(track);
}
#if defined(ENABLE_MP4)
if (_fmp4) {
_fmp4->addTrack(track);
}
#endif
//拷贝智能指针，目的是为了防止跨线程调用设置录像相关api导致的线程竞争问题
auto hls = _hls;
if (hls) {
hls->addTrack(track);
}
auto mp4 = _mp4;
if (mp4) {
mp4->addTrack(track);
}
}
bool MultiMuxerPrivate::isEnabled(){
auto hls = _hls;
return (_rtmp ? _rtmp->isEnabled() : false) ||
(_rtsp ? _rtsp->isEnabled() : false) ||
(_ts ? _ts->isEnabled() : false) ||
#if defined(ENABLE_MP4)
(_fmp4 ? _fmp4->isEnabled() : false) ||
#endif
(hls ? hls->isEnabled() : false) || _mp4;
}
void MultiMuxerPrivate::onTrackFrame(const Frame::Ptr &frame) {
if (_rtmp) {
_rtmp->inputFrame(frame);
}
if (_rtsp) {
_rtsp->inputFrame(frame);
}
if (_ts) {
_ts->inputFrame(frame);
}
#if defined(ENABLE_MP4)
if (_fmp4) {
_fmp4->inputFrame(frame);
}
#endif
//拷贝智能指针，目的是为了防止跨线程调用设置录像相关api导致的线程竞争问题
//此处使用智能指针拷贝来确保线程安全，比互斥锁性能更优
auto hls = _hls;
if (hls) {
hls->inputFrame(frame);
}
auto mp4 = _mp4;
if (mp4) {
mp4->inputFrame(frame);
}
}
static string getTrackInfoStr(const TrackSource *track_src){
_StrPrinter codec_info;
auto tracks = track_src->getTracks(true);
@ -268,58 +56,83 @@ static string getTrackInfoStr(const TrackSource *track_src){
return std::move(codec_info);
}
void MultiMuxerPrivate::onAllTrackReady() {
if (_rtmp) {
_rtmp->onAllTrackReady();
}
if (_rtsp) {
_rtsp->onAllTrackReady();
}
#if defined(ENABLE_MP4)
if (_fmp4) {
_fmp4->onAllTrackReady();
}
#endif
if (_track_listener) {
_track_listener->onAllTrackReady();
}
InfoL << "stream: " << _stream_url << " , codec info: " << getTrackInfoStr(this);
}
///////////////////////////////MultiMediaSourceMuxer//////////////////////////////////
MultiMediaSourceMuxer::~MultiMediaSourceMuxer() {}
MultiMediaSourceMuxer::MultiMediaSourceMuxer(const string &vhost, const string &app, const string &stream, float dur_sec,
bool enable_rtsp, bool enable_rtmp, bool enable_hls, bool enable_mp4) {
_muxer.reset(new MultiMuxerPrivate(vhost, app, stream, dur_sec, enable_rtsp, enable_rtmp, enable_hls, enable_mp4));
_muxer->setTrackListener(this);
if (enable_rtmp) {
_rtmp = std::make_shared<RtmpMediaSourceMuxer>(vhost, app, stream, std::make_shared<TitleMeta>(dur_sec));
}
if (enable_rtsp) {
_rtsp = std::make_shared<RtspMediaSourceMuxer>(vhost, app, stream, std::make_shared<TitleSdp>(dur_sec));
}
if (enable_hls) {
_hls = dynamic_pointer_cast<HlsRecorder>(Recorder::createRecorder(Recorder::type_hls, vhost, app, stream));
}
if (enable_mp4) {
_mp4 = Recorder::createRecorder(Recorder::type_mp4, vhost, app, stream);
}
_ts = std::make_shared<TSMediaSourceMuxer>(vhost, app, stream);
#if defined(ENABLE_MP4)
_fmp4 = std::make_shared<FMP4MediaSourceMuxer>(vhost, app, stream);
#endif
}
void MultiMediaSourceMuxer::setMediaListener(const std::weak_ptr<MediaSourceEvent> &listener) {
setDelegate(listener);
auto self = shared_from_this();
//拦截事件
_muxer->setMediaListener(shared_from_this());
if (_rtmp) {
_rtmp->setListener(self);
}
if (_rtsp) {
_rtsp->setListener(self);
}
if (_ts) {
_ts->setListener(self);
}
#if defined(ENABLE_MP4)
if (_fmp4) {
_fmp4->setListener(self);
}
#endif
auto hls = _hls;
if (hls) {
hls->setListener(self);
}
}
void MultiMediaSourceMuxer::setTrackListener(const std::weak_ptr<MultiMuxerPrivate::Listener> &listener) {
void MultiMediaSourceMuxer::setTrackListener(const std::weak_ptr<Listener> &listener) {
_track_listener = listener;
}
int MultiMediaSourceMuxer::totalReaderCount() const {
auto hls = _hls;
auto ret = (_rtsp ? _rtsp->readerCount() : 0) +
(_rtmp ? _rtmp->readerCount() : 0) +
(_ts ? _ts->readerCount() : 0) +
#if defined(ENABLE_MP4)
(_fmp4 ? _fmp4->readerCount() : 0) +
#endif
(hls ? hls->readerCount() : 0);
#if defined(ENABLE_RTPPROXY)
return _muxer->totalReaderCount() + (int)_rtp_sender.size();
return ret + (int)_rtp_sender.size();
#else
return _muxer->totalReaderCount();
return ret;
#endif
}
void MultiMediaSourceMuxer::setTimeStamp(uint32_t stamp) {
_muxer->setTimeStamp(stamp);
}
vector<Track::Ptr> MultiMediaSourceMuxer::getTracks(MediaSource &sender, bool trackReady) const {
return _muxer->getTracks(trackReady);
if (_rtmp) {
_rtmp->setTimeStamp(stamp);
}
if (_rtsp) {
_rtsp->setTimeStamp(stamp);
}
}
int MultiMediaSourceMuxer::totalReaderCount(MediaSource &sender) {
@ -330,12 +143,48 @@ int MultiMediaSourceMuxer::totalReaderCount(MediaSource &sender) {
return listener->totalReaderCount(sender);
}
//此函数可能跨线程调用
bool MultiMediaSourceMuxer::setupRecord(MediaSource &sender, Recorder::type type, bool start, const string &custom_path, size_t max_second) {
return _muxer->setupRecord(sender, type, start, custom_path, max_second);
switch (type) {
case Recorder::type_hls : {
if (start && !_hls) {
//开始录制
auto hls = dynamic_pointer_cast<HlsRecorder>(makeRecorder(sender, MediaSink::getTracks(), type, custom_path, max_second));
if (hls) {
//设置HlsMediaSource的事件监听器
hls->setListener(shared_from_this());
}
_hls = hls;
} else if (!start && _hls) {
//停止录制
_hls = nullptr;
}
return true;
}
case Recorder::type_mp4 : {
if (start && !_mp4) {
//开始录制
_mp4 = makeRecorder(sender, MediaSink::getTracks(), type, custom_path, max_second);
} else if (!start && _mp4) {
//停止录制
_mp4 = nullptr;
}
return true;
}
default : return false;
}
}
//此函数可能跨线程调用
bool MultiMediaSourceMuxer::isRecording(MediaSource &sender, Recorder::type type) {
return _muxer->isRecording(sender,type);
switch (type){
case Recorder::type_hls :
return _hls ? true : false;
case Recorder::type_mp4 :
return _mp4 ? true : false;
default:
return false;
}
}
void MultiMediaSourceMuxer::startSendRtp(MediaSource &, const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, uint16_t src_port, const function<void(uint16_t local_port, const SockException &ex)> &cb){
@ -348,7 +197,7 @@ void MultiMediaSourceMuxer::startSendRtp(MediaSource &, const string &dst_url, u
if (!strong_self || ex) {
return;
}
for (auto &track : strong_self->_muxer->getTracks(false)) {
for (auto &track : strong_self->MediaSink::getTracks(false)) {
rtp_sender->addTrack(track);
}
rtp_sender->addTrackCompleted();
@ -383,28 +232,94 @@ bool MultiMediaSourceMuxer::stopSendRtp(MediaSource &sender, const string &ssrc)
#endif//ENABLE_RTPPROXY
}
void MultiMediaSourceMuxer::addTrack(const Track::Ptr &track) {
void MultiMediaSourceMuxer::onTrackReady(const Track::Ptr &track) {
if (CodecL16 == track->getCodecId()) {
WarnL << "L16音频格式目前只支持RTSP协议推流拉流!!!";
return;
}
_muxer->addTrack(track);
}
void MultiMediaSourceMuxer::addTrackCompleted() {
_muxer->addTrackCompleted();
}
if (_rtmp) {
_rtmp->addTrack(track);
}
if (_rtsp) {
_rtsp->addTrack(track);
}
if (_ts) {
_ts->addTrack(track);
}
#if defined(ENABLE_MP4)
if (_fmp4) {
_fmp4->addTrack(track);
}
#endif
void MultiMediaSourceMuxer::onAllTrackReady(){
_muxer->setMediaListener(shared_from_this());
auto listener = _track_listener.lock();
if(listener){
listener->onAllTrackReady();
//拷贝智能指针，目的是为了防止跨线程调用设置录像相关api导致的线程竞争问题
auto hls = _hls;
if (hls) {
hls->addTrack(track);
}
auto mp4 = _mp4;
if (mp4) {
mp4->addTrack(track);
}
}
void MultiMediaSourceMuxer::onAllTrackReady() {
setMediaListener(getDelegate());
if (_rtmp) {
_rtmp->onAllTrackReady();
}
if (_rtsp) {
_rtsp->onAllTrackReady();
}
#if defined(ENABLE_MP4)
if (_fmp4) {
_fmp4->onAllTrackReady();
}
#endif
auto listener = _track_listener.lock();
if (listener) {
listener->onAllTrackReady();
}
InfoL << "stream: " << _stream_url << " , codec info: " << getTrackInfoStr(this);
}
void MultiMediaSourceMuxer::resetTracks() {
_muxer->resetTracks();
MediaSink::resetTracks();
if (_rtmp) {
_rtmp->resetTracks();
}
if (_rtsp) {
_rtsp->resetTracks();
}
if (_ts) {
_ts->resetTracks();
}
#if defined(ENABLE_MP4)
if (_fmp4) {
_fmp4->resetTracks();
}
#endif
#if defined(ENABLE_RTPPROXY)
lock_guard<mutex> lck(_rtp_sender_mtx);
for (auto &pr : _rtp_sender) {
pr.second->resetTracks();
}
#endif
//拷贝智能指针，目的是为了防止跨线程调用设置录像相关api导致的线程竞争问题
auto hls = _hls;
if (hls) {
hls->resetTracks();
}
auto mp4 = _mp4;
if (mp4) {
mp4->resetTracks();
}
}
//该类实现frame级别的时间戳覆盖
@ -459,14 +374,40 @@ private:
Frame::Ptr _frame;
};
void MultiMediaSourceMuxer::inputFrame(const Frame::Ptr &frame_in) {
void MultiMediaSourceMuxer::onTrackFrame(const Frame::Ptr &frame_in) {
GET_CONFIG(bool, modify_stamp, General::kModifyStamp);
auto frame = frame_in;
if (modify_stamp) {
//开启了时间戳覆盖
frame = std::make_shared<FrameModifyStamp>(frame, _stamp[frame->getTrackType()]);
}
_muxer->inputFrame(frame);
if (_rtmp) {
_rtmp->inputFrame(frame);
}
if (_rtsp) {
_rtsp->inputFrame(frame);
}
if (_ts) {
_ts->inputFrame(frame);
}
//拷贝智能指针，目的是为了防止跨线程调用设置录像相关api导致的线程竞争问题
//此处使用智能指针拷贝来确保线程安全，比互斥锁性能更优
auto hls = _hls;
if (hls) {
hls->inputFrame(frame);
}
auto mp4 = _mp4;
if (mp4) {
mp4->inputFrame(frame);
}
#if defined(ENABLE_MP4)
if (_fmp4) {
_fmp4->inputFrame(frame);
}
#endif
#if defined(ENABLE_RTPPROXY)
lock_guard<mutex> lck(_rtp_sender_mtx);
@ -474,7 +415,6 @@ void MultiMediaSourceMuxer::inputFrame(const Frame::Ptr &frame_in) {
pr.second->inputFrame(frame);
}
#endif //ENABLE_RTPPROXY
}
bool MultiMediaSourceMuxer::isEnabled(){
@ -482,10 +422,19 @@ bool MultiMediaSourceMuxer::isEnabled(){
if (!_is_enable || _last_check.elapsedTime() > stream_none_reader_delay_ms) {
//无人观看时，每次检查是否真的无人观看
//有人观看时，则延迟一定时间检查一遍是否无人观看了(节省性能)
auto hls = _hls;
auto flag = (_rtmp ? _rtmp->isEnabled() : false) ||
(_rtsp ? _rtsp->isEnabled() : false) ||
(_ts ? _ts->isEnabled() : false) ||
#if defined(ENABLE_MP4)
(_fmp4 ? _fmp4->isEnabled() : false) ||
#endif
(hls ? hls->isEnabled() : false) || _mp4;
#if defined(ENABLE_RTPPROXY)
_is_enable = (_muxer->isEnabled() || _rtp_sender.size());
_is_enable = flag || _rtp_sender.size();
#else
_is_enable = _muxer->isEnabled();
_is_enable = flag;
#endif //ENABLE_RTPPROXY
if (_is_enable) {
//无人观看时，不刷新计时器,因为无人观看时每次都会检查一遍，所以刷新计数器无意义且浪费cpu
@ -495,5 +444,4 @@ bool MultiMediaSourceMuxer::isEnabled(){
return _is_enable;
}
}//namespace mediakit
}//namespace mediakit

105
src/Common/MultiMediaSourceMuxer.h
View File

@ -23,10 +23,10 @@
namespace mediakit{
class MultiMuxerPrivate : public MediaSink, public std::enable_shared_from_this<MultiMuxerPrivate>{
class MultiMediaSourceMuxer : public MediaSourceEventInterceptor, public MediaSink, public std::enable_shared_from_this<MultiMediaSourceMuxer>{
public:
friend class MultiMediaSourceMuxer;
typedef std::shared_ptr<MultiMuxerPrivate> Ptr;
typedef std::shared_ptr<MultiMediaSourceMuxer> Ptr;
class Listener{
public:
Listener() = default;
@ -34,43 +34,7 @@ public:
virtual void onAllTrackReady() = 0;
};
~MultiMuxerPrivate() override;
private:
MultiMuxerPrivate(const string &vhost,const string &app, const string &stream,float dur_sec,
bool enable_rtsp, bool enable_rtmp, bool enable_hls, bool enable_mp4);
void resetTracks() override;
void setMediaListener(const std::weak_ptr<MediaSourceEvent> &listener);
int totalReaderCount() const;
void setTimeStamp(uint32_t stamp);
void setTrackListener(Listener *listener);
bool setupRecord(MediaSource &sender, Recorder::type type, bool start, const string &custom_path, size_t max_second);
bool isRecording(MediaSource &sender, Recorder::type type);
bool isEnabled();
void onTrackReady(const Track::Ptr & track) override;
void onTrackFrame(const Frame::Ptr &frame) override;
void onAllTrackReady() override;
private:
string _stream_url;
Listener *_track_listener = nullptr;
RtmpMediaSourceMuxer::Ptr _rtmp;
RtspMediaSourceMuxer::Ptr _rtsp;
HlsRecorder::Ptr _hls;
MediaSinkInterface::Ptr _mp4;
TSMediaSourceMuxer::Ptr _ts;
#if defined(ENABLE_MP4)
FMP4MediaSourceMuxer::Ptr _fmp4;
#endif
std::weak_ptr<MediaSourceEvent> _listener;
};
class MultiMediaSourceMuxer : public MediaSourceEventInterceptor, public MediaSinkInterface, public MultiMuxerPrivate::Listener, public std::enable_shared_from_this<MultiMediaSourceMuxer>{
public:
typedef MultiMuxerPrivate::Listener Listener;
typedef std::shared_ptr<MultiMediaSourceMuxer> Ptr;
~MultiMediaSourceMuxer() override;
~MultiMediaSourceMuxer() override = default;
MultiMediaSourceMuxer(const string &vhost, const string &app, const string &stream, float dur_sec = 0.0,
bool enable_rtsp = true, bool enable_rtmp = true, bool enable_hls = true, bool enable_mp4 = false);
@ -84,7 +48,7 @@ public:
* 随着Track就绪事件监听器
* @param listener 事件监听器
*/
void setTrackListener(const std::weak_ptr<MultiMuxerPrivate::Listener> &listener);
void setTrackListener(const std::weak_ptr<Listener> &listener);
/**
* 返回总的消费者个数
@ -104,13 +68,6 @@ public:
/////////////////////////////////MediaSourceEvent override/////////////////////////////////
/**
* 获取所有Track
* @param trackReady 是否筛选过滤未就绪的track
* @return 所有Track
*/
vector<Track::Ptr> getTracks(MediaSource &sender, bool trackReady = true) const override;
/**
* 观看总人数
* @param sender 事件发送者
@ -150,48 +107,52 @@ public:
*/
bool stopSendRtp(MediaSource &sender, const string &ssrc) override;
/////////////////////////////////MediaSinkInterface override/////////////////////////////////
/**
* 添加track，内部会调用Track的clone方法
* 只会克隆sps pps这些信息 ，而不会克隆Delegate相关关系
* @param track 添加音频或视频轨道
*/
void addTrack(const Track::Ptr &track) override;
/**
* 添加track完毕
*/
void addTrackCompleted() override;
/**
* 重置track
*/
void resetTracks() override;
/**
* 写入帧数据
* @param frame 帧
*/
void inputFrame(const Frame::Ptr &frame) override;
/////////////////////////////////MultiMuxerPrivate::Listener override/////////////////////////////////
protected:
/////////////////////////////////MediaSink override/////////////////////////////////
/**
* 所有track全部就绪
* 某track已经准备好，其ready()状态返回true，
* 此时代表可以获取其例如sps pps等相关信息了
* @param track
*/
void onTrackReady(const Track::Ptr & track) override;
/**
* 所有Track已经准备好，
*/
void onAllTrackReady() override;
/**
* 某Track输出frame，在onAllTrackReady触发后才会调用此方法
* @param frame
*/
void onTrackFrame(const Frame::Ptr &frame) override;
private:
bool _is_enable = false;
string _stream_url;
Ticker _last_check;
Stamp _stamp[2];
MultiMuxerPrivate::Ptr _muxer;
std::weak_ptr<MultiMuxerPrivate::Listener> _track_listener;
std::weak_ptr<Listener> _track_listener;
#if defined(ENABLE_RTPPROXY)
mutex _rtp_sender_mtx;
unordered_map<string, RtpSender::Ptr> _rtp_sender;
#endif //ENABLE_RTPPROXY
#if defined(ENABLE_MP4)
FMP4MediaSourceMuxer::Ptr _fmp4;
#endif
RtmpMediaSourceMuxer::Ptr _rtmp;
RtspMediaSourceMuxer::Ptr _rtsp;
TSMediaSourceMuxer::Ptr _ts;
MediaSinkInterface::Ptr _mp4;
HlsRecorder::Ptr _hls;
//对象个数统计
ObjectStatistic<MultiMediaSourceMuxer> _statistic;
};

2
src/Rtmp/RtmpMediaSourceImp.h
View File

@ -127,7 +127,7 @@ public:
if (_recreate_metadata) {
//更新metadata
for (auto &track : _muxer->getTracks(*this)) {
for (auto &track : _muxer->MediaSink::getTracks()) {
Metadata::addTrack(_metadata, track);
}
RtmpMediaSource::updateMetaData(_metadata);