diff --git a/3rdpart/ZLToolKit b/3rdpart/ZLToolKit
index a4771b35..12c2ec7b 160000
--- a/3rdpart/ZLToolKit
+++ b/3rdpart/ZLToolKit
@@ -1 +1 @@
-Subproject commit a4771b353d9ebe1bc162364237a31f4184a7c435
+Subproject commit 12c2ec7b07dce1b6a0543d9979f5c5231f69e828
diff --git a/postman/ZLMediaKit.postman_collection.json b/postman/ZLMediaKit.postman_collection.json
index 39377f1a..784bb60c 100644
--- a/postman/ZLMediaKit.postman_collection.json
+++ b/postman/ZLMediaKit.postman_collection.json
@@ -1758,10 +1758,16 @@
 							"value": "obs",
 							"description": "流id，例如 obs"
 						},
+						{
+							"key": "ssrc_multi_send",
+							"value": "0",
+							"description": "是否支持同ssrc推流到多个上级服务器,该参数非必选参数 默认false",
+							"disabled": true
+						},
 						{
 							"key": "ssrc",
 							"value": "1",
-							"description": "rtp推流的ssrc，ssrc不同时，可以推流到多个上级服务器"
+							"description": "rtp推流的ssrc"
 						},
 						{
 							"key": "dst_url",
diff --git a/server/WebApi.cpp b/server/WebApi.cpp
index 1034ae4c..63b4d5e3 100755
--- a/server/WebApi.cpp
+++ b/server/WebApi.cpp
@@ -1182,6 +1182,7 @@ void installWebApi() {
         //回复json
         val["port"] = port;
     });
+
       api_regist("/index/api/openRtpServerMultiplex", [](API_ARGS_MAP) {
       CHECK_SECRET();
       CHECK_ARGS("port", "stream_id");
@@ -1263,6 +1264,7 @@ void installWebApi() {
         args.passive = false;
         args.dst_url = allArgs["dst_url"];
         args.dst_port = allArgs["dst_port"];
+        args.ssrc_multi_send = allArgs["ssrc_multi_send"].empty() ? false : allArgs["ssrc_multi_send"].as<bool>();
         args.ssrc = allArgs["ssrc"];
         args.is_udp = allArgs["is_udp"];
         args.src_port = allArgs["src_port"];
diff --git a/src/Common/MediaSource.h b/src/Common/MediaSource.h
index ffced627..73306385 100644
--- a/src/Common/MediaSource.h
+++ b/src/Common/MediaSource.h
@@ -104,6 +104,8 @@ public:
         bool passive = false;
         // rtp payload type
         uint8_t pt = 96;
+        //是否支持同ssrc多服务器发送
+        bool ssrc_multi_send = false;
         // 指定rtp ssrc
         std::string ssrc;
         // 指定本地发送端口
diff --git a/src/Common/MultiMediaSourceMuxer.cpp b/src/Common/MultiMediaSourceMuxer.cpp
index bbb9b357..99898b95 100644
--- a/src/Common/MultiMediaSourceMuxer.cpp
+++ b/src/Common/MultiMediaSourceMuxer.cpp
@@ -45,6 +45,7 @@ static string getTrackInfoStr(const TrackSource *track_src){
     _StrPrinter codec_info;
     auto tracks = track_src->getTracks(true);
     for (auto &track : tracks) {
+        track->update();
         auto codec_type = track->getTrackType();
         codec_info << track->getCodecName();
         switch (codec_type) {
@@ -290,12 +291,14 @@ void MultiMediaSourceMuxer::startSendRtp(MediaSource &sender, const MediaSourceE
 
     auto ring = _ring;
     auto ssrc = args.ssrc;
+    auto ssrc_multi_send = args.ssrc_multi_send;
     auto tracks = getTracks(false);
     auto poller = getOwnerPoller(sender);
     auto rtp_sender = std::make_shared<RtpSender>(poller);
+
     weak_ptr<MultiMediaSourceMuxer> weak_self = shared_from_this();
 
-    rtp_sender->startSend(args, [ssrc, weak_self, rtp_sender, cb, tracks, ring, poller](uint16_t local_port, const SockException &ex) mutable {
+    rtp_sender->startSend(args, [ssrc,ssrc_multi_send, weak_self, rtp_sender, cb, tracks, ring, poller](uint16_t local_port, const SockException &ex) mutable {
         cb(local_port, ex);
         auto strong_self = weak_self.lock();
         if (!strong_self || ex) {
@@ -324,7 +327,10 @@ void MultiMediaSourceMuxer::startSendRtp(MediaSource &sender, const MediaSourceE
 
         // 可能归属线程发生变更
         strong_self->getOwnerPoller(MediaSource::NullMediaSource())->async([=]() {
-            strong_self->_rtp_sender[ssrc] = std::move(reader);
+            if(!ssrc_multi_send) {
+                strong_self->_rtp_sender.erase(ssrc);
+            }
+            strong_self->_rtp_sender.emplace(ssrc,reader);
         });
     });
 #else
diff --git a/src/Common/MultiMediaSourceMuxer.h b/src/Common/MultiMediaSourceMuxer.h
index 4db34d42..45ab7623 100644
--- a/src/Common/MultiMediaSourceMuxer.h
+++ b/src/Common/MultiMediaSourceMuxer.h
@@ -168,7 +168,7 @@ private:
     toolkit::Ticker _last_check;
     Stamp _stamp[2];
     std::weak_ptr<Listener> _track_listener;
-    std::unordered_map<std::string, RingType::RingReader::Ptr> _rtp_sender;
+    std::unordered_multimap<std::string, RingType::RingReader::Ptr> _rtp_sender;
     FMP4MediaSourceMuxer::Ptr _fmp4;
     RtmpMediaSourceMuxer::Ptr _rtmp;
     RtspMediaSourceMuxer::Ptr _rtsp;
diff --git a/src/Extension/AAC.cpp b/src/Extension/AAC.cpp
index 1047a8b3..27f18359 100644
--- a/src/Extension/AAC.cpp
+++ b/src/Extension/AAC.cpp
@@ -21,53 +21,56 @@ namespace mediakit{
 #ifndef ENABLE_MP4
 unsigned const samplingFrequencyTable[16] = { 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350, 0, 0, 0 };
 
-class AdtsHeader{
+class AdtsHeader {
 public:
-    unsigned int syncword = 0; //12 bslbf 同步字The bit string ‘1111 1111 1111’，说明一个ADTS帧的开始
-    unsigned int id;        //1 bslbf   MPEG 标示符, 设置为1
-    unsigned int layer;    //2 uimsbf Indicates which layer is used. Set to ‘00’
-    unsigned int protection_absent;  //1 bslbf  表示是否误码校验
-    unsigned int profile; //2 uimsbf  表示使用哪个级别的AAC，如01 Low Complexity(LC)--- AACLC
-    unsigned int sf_index;           //4 uimsbf  表示使用的采样率下标
-    unsigned int private_bit;        //1 bslbf
-    unsigned int channel_configuration;  //3 uimsbf  表示声道数
-    unsigned int original;               //1 bslbf
-    unsigned int home;                   //1 bslbf
-    //下面的为改变的参数即每一帧都不同
-    unsigned int copyright_identification_bit;   //1 bslbf
-    unsigned int copyright_identification_start; //1 bslbf
+    unsigned int syncword = 0; // 12 bslbf 同步字The bit string ‘1111 1111 1111’，说明一个ADTS帧的开始
+    unsigned int id; // 1 bslbf   MPEG 标示符, 设置为1
+    unsigned int layer; // 2 uimsbf Indicates which layer is used. Set to ‘00’
+    unsigned int protection_absent; // 1 bslbf  表示是否误码校验
+    unsigned int profile; // 2 uimsbf  表示使用哪个级别的AAC，如01 Low Complexity(LC)--- AACLC
+    unsigned int sf_index; // 4 uimsbf  表示使用的采样率下标
+    unsigned int private_bit; // 1 bslbf
+    unsigned int channel_configuration; // 3 uimsbf  表示声道数
+    unsigned int original; // 1 bslbf
+    unsigned int home; // 1 bslbf
+    // 下面的为改变的参数即每一帧都不同
+    unsigned int copyright_identification_bit; // 1 bslbf
+    unsigned int copyright_identification_start; // 1 bslbf
     unsigned int aac_frame_length; // 13 bslbf  一个ADTS帧的长度包括ADTS头和raw data block
-    unsigned int adts_buffer_fullness;           //11 bslbf     0x7FF 说明是码率可变的码流
-    //no_raw_data_blocks_in_frame 表示ADTS帧中有number_of_raw_data_blocks_in_frame + 1个AAC原始帧.
-    //所以说number_of_raw_data_blocks_in_frame == 0
-    //表示说ADTS帧中有一个AAC数据块并不是说没有。(一个AAC原始帧包含一段时间内1024个采样及相关数据)
-    unsigned int no_raw_data_blocks_in_frame;    //2 uimsfb
+    unsigned int adts_buffer_fullness; // 11 bslbf     0x7FF 说明是码率可变的码流
+    // no_raw_data_blocks_in_frame 表示ADTS帧中有number_of_raw_data_blocks_in_frame + 1个AAC原始帧.
+    // 所以说number_of_raw_data_blocks_in_frame == 0
+    // 表示说ADTS帧中有一个AAC数据块并不是说没有。(一个AAC原始帧包含一段时间内1024个采样及相关数据)
+    unsigned int no_raw_data_blocks_in_frame; // 2 uimsfb
 };
 
 static void dumpAdtsHeader(const AdtsHeader &hed, uint8_t *out) {
-    out[0] = (hed.syncword >> 4 & 0xFF); //8bit
-    out[1] = (hed.syncword << 4 & 0xF0); //4 bit
-    out[1] |= (hed.id << 3 & 0x08); //1 bit
-    out[1] |= (hed.layer << 1 & 0x06); //2bit
-    out[1] |= (hed.protection_absent & 0x01); //1 bit
+    out[0] = (hed.syncword >> 4 & 0xFF); // 8bit
+    out[1] = (hed.syncword << 4 & 0xF0); // 4 bit
+    out[1] |= (hed.id << 3 & 0x08); // 1 bit
+    out[1] |= (hed.layer << 1 & 0x06); // 2bit
+    out[1] |= (hed.protection_absent & 0x01); // 1 bit
     out[2] = (hed.profile << 6 & 0xC0); // 2 bit
-    out[2] |= (hed.sf_index << 2 & 0x3C); //4bit
-    out[2] |= (hed.private_bit << 1 & 0x02); //1 bit
-    out[2] |= (hed.channel_configuration >> 2 & 0x03); //1 bit
-    out[3] = (hed.channel_configuration << 6 & 0xC0);  // 2 bit
-    out[3] |= (hed.original << 5 & 0x20);				//1 bit
-    out[3] |= (hed.home << 4 & 0x10);				//1 bit
-    out[3] |= (hed.copyright_identification_bit << 3 & 0x08);			//1 bit
-    out[3] |= (hed.copyright_identification_start << 2 & 0x04);		//1 bit
-    out[3] |= (hed.aac_frame_length >> 11 & 0x03);				//2 bit
-    out[4] = (hed.aac_frame_length >> 3 & 0xFF);				//8 bit
-    out[5] = (hed.aac_frame_length << 5 & 0xE0);				//3 bit
-    out[5] |= (hed.adts_buffer_fullness >> 6 & 0x1F);				//5 bit
-    out[6] = (hed.adts_buffer_fullness << 2 & 0xFC);				//6 bit
-    out[6] |= (hed.no_raw_data_blocks_in_frame & 0x03);				//2 bit
+    out[2] |= (hed.sf_index << 2 & 0x3C); // 4bit
+    out[2] |= (hed.private_bit << 1 & 0x02); // 1 bit
+    out[2] |= (hed.channel_configuration >> 2 & 0x03); // 1 bit
+    out[3] = (hed.channel_configuration << 6 & 0xC0); // 2 bit
+    out[3] |= (hed.original << 5 & 0x20); // 1 bit
+    out[3] |= (hed.home << 4 & 0x10); // 1 bit
+    out[3] |= (hed.copyright_identification_bit << 3 & 0x08); // 1 bit
+    out[3] |= (hed.copyright_identification_start << 2 & 0x04); // 1 bit
+    out[3] |= (hed.aac_frame_length >> 11 & 0x03); // 2 bit
+    out[4] = (hed.aac_frame_length >> 3 & 0xFF); // 8 bit
+    out[5] = (hed.aac_frame_length << 5 & 0xE0); // 3 bit
+    out[5] |= (hed.adts_buffer_fullness >> 6 & 0x1F); // 5 bit
+    out[6] = (hed.adts_buffer_fullness << 2 & 0xFC); // 6 bit
+    out[6] |= (hed.no_raw_data_blocks_in_frame & 0x03); // 2 bit
 }
 
-static void parseAacConfig(const string &config, AdtsHeader &adts) {
+static bool parseAacConfig(const string &config, AdtsHeader &adts) {
+    if (config.size() < 2) {
+        return false;
+    }
     uint8_t cfg1 = config[0];
     uint8_t cfg2 = config[1];
 
@@ -94,6 +97,7 @@ static void parseAacConfig(const string &config, AdtsHeader &adts) {
     adts.aac_frame_length = 7;
     adts.adts_buffer_fullness = 2047;
     adts.no_raw_data_blocks_in_frame = 0;
+    return true;
 }
 #endif// ENABLE_MP4
 
@@ -168,10 +172,12 @@ int dumpAacConfig(const string &config, size_t length, uint8_t *out, size_t out_
 #endif
 }
 
-bool parseAacConfig(const string &config, int &samplerate, int &channels){
+bool parseAacConfig(const string &config, int &samplerate, int &channels) {
 #ifndef ENABLE_MP4
     AdtsHeader header;
-    parseAacConfig(config, header);
+    if (!parseAacConfig(config, header)) {
+        return false;
+    }
     samplerate = samplingFrequencyTable[header.sf_index];
     channels = header.channel_configuration;
     return true;
@@ -326,11 +332,14 @@ bool AACTrack::inputFrame_l(const Frame::Ptr &frame) {
     return false;
 }
 
+bool AACTrack::update() {
+    return parseAacConfig(_cfg, _sampleRate, _channel);
+}
+
 void AACTrack::onReady() {
-    if (_cfg.size() < 2) {
-        return;
+    if (!parseAacConfig(_cfg, _sampleRate, _channel)) {
+        _cfg.clear();
     }
-    parseAacConfig(_cfg, _sampleRate, _channel);
 }
 
 Track::Ptr AACTrack::clone() {
@@ -342,6 +351,7 @@ Sdp::Ptr AACTrack::getSdp() {
         WarnL << getCodecName() << " Track未准备好";
         return nullptr;
     }
+    update();
     return std::make_shared<AACSdp>(getConfig(), getAudioSampleRate(), getAudioChannel(), getBitRate() / 1024);
 }
 
diff --git a/src/Extension/AAC.h b/src/Extension/AAC.h
index b95fc6f2..32cf934b 100644
--- a/src/Extension/AAC.h
+++ b/src/Extension/AAC.h
@@ -52,6 +52,7 @@ public:
     int getAudioSampleRate() const override;
     int getAudioSampleBit() const override;
     bool inputFrame(const Frame::Ptr &frame) override;
+    bool update() override;
 
 private:
     void onReady();
diff --git a/src/Extension/H264.cpp b/src/Extension/H264.cpp
index eeccd600..eda6b188 100644
--- a/src/Extension/H264.cpp
+++ b/src/Extension/H264.cpp
@@ -168,6 +168,10 @@ bool H264Track::inputFrame(const Frame::Ptr &frame) {
     return ret;
 }
 
+bool H264Track::update() {
+    return getAVCInfo(_sps, _width, _height, _fps);
+}
+
 void H264Track::onReady() {
     if (!getAVCInfo(_sps, _width, _height, _fps)) {
         _sps.clear();
diff --git a/src/Extension/H264.h b/src/Extension/H264.h
index 30a8f747..0afe593d 100644
--- a/src/Extension/H264.h
+++ b/src/Extension/H264.h
@@ -128,6 +128,7 @@ public:
     int getVideoWidth() const override;
     float getVideoFps() const override;
     bool inputFrame(const Frame::Ptr &frame) override;
+    bool update() override;
 
 private:
     void onReady();
diff --git a/src/Extension/H264Rtp.cpp b/src/Extension/H264Rtp.cpp
index 28c775c6..442205a6 100644
--- a/src/Extension/H264Rtp.cpp
+++ b/src/Extension/H264Rtp.cpp
@@ -44,13 +44,15 @@ H264Frame::Ptr H264RtpDecoder::obtainFrame() {
 
 bool H264RtpDecoder::inputRtp(const RtpPacket::Ptr &rtp, bool key_pos) {
     auto seq = rtp->getSeq();
-    auto ret = decodeRtp(rtp);
-    if (!_gop_dropped && seq != (uint16_t) (_last_seq + 1) && _last_seq) {
+    auto last_is_gop = _is_gop;
+    _is_gop = decodeRtp(rtp);
+    if (!_gop_dropped && seq != (uint16_t)(_last_seq + 1) && _last_seq) {
         _gop_dropped = true;
         WarnL << "start drop h264 gop, last seq:" << _last_seq << ", rtp:\r\n" << rtp->dumpString();
     }
     _last_seq = seq;
-    return ret;
+    // 确保有sps rtp的时候，gop从sps开始；否则从关键帧开始
+    return _is_gop && !last_is_gop;
 }
 
 /*
@@ -74,7 +76,7 @@ bool H264RtpDecoder::singleFrame(const RtpPacket::Ptr &rtp, const uint8_t *ptr,
     _frame->_buffer.assign("\x00\x00\x00\x01", 4);
     _frame->_buffer.append((char *) ptr, size);
     _frame->_pts = stamp;
-    auto key = _frame->keyFrame();
+    auto key = _frame->keyFrame() || _frame->configFrame();
     outputFrame(rtp, _frame);
     return key;
 }
@@ -127,7 +129,7 @@ bool H264RtpDecoder::mergeFu(const RtpPacket::Ptr &rtp, const uint8_t *ptr, ssiz
 
     if (!fu->end_bit) {
         //非末尾包
-        return fu->start_bit ? _frame->keyFrame() : false;
+        return fu->start_bit ? (_frame->keyFrame() || _frame->configFrame()) : false;
     }
 
     //确保下一次fu必须收到第一个包
diff --git a/src/Extension/H264Rtp.h b/src/Extension/H264Rtp.h
index 31200cb8..98d49cda 100644
--- a/src/Extension/H264Rtp.h
+++ b/src/Extension/H264Rtp.h
@@ -51,6 +51,7 @@ private:
     void outputFrame(const RtpPacket::Ptr &rtp, const H264Frame::Ptr &frame);
 
 private:
+    bool _is_gop = false;
     bool _gop_dropped = false;
     bool _fu_dropped = true;
     uint16_t _last_seq = 0;
diff --git a/src/Extension/H265.cpp b/src/Extension/H265.cpp
index 9985a9cb..926ab2a4 100644
--- a/src/Extension/H265.cpp
+++ b/src/Extension/H265.cpp
@@ -144,6 +144,10 @@ bool H265Track::inputFrame_l(const Frame::Ptr &frame) {
     return ret;
 }
 
+bool H265Track::update() {
+    return getHEVCInfo(_vps, _sps, _width, _height, _fps);
+}
+
 void H265Track::onReady() {
     if (!getHEVCInfo(_vps, _sps, _width, _height, _fps)) {
         _vps.clear();
diff --git a/src/Extension/H265.h b/src/Extension/H265.h
index 521663f4..912f1f46 100644
--- a/src/Extension/H265.h
+++ b/src/Extension/H265.h
@@ -150,6 +150,7 @@ public:
     int getVideoHeight() const override;
     float getVideoFps() const override;
     bool inputFrame(const Frame::Ptr &frame) override;
+    bool update() override;
 
 private:
     void onReady();
diff --git a/src/Extension/H265Rtp.cpp b/src/Extension/H265Rtp.cpp
index 23bbb109..22866ff4 100644
--- a/src/Extension/H265Rtp.cpp
+++ b/src/Extension/H265Rtp.cpp
@@ -163,7 +163,7 @@ bool H265RtpDecoder::mergeFu(const RtpPacket::Ptr &rtp, const uint8_t *ptr, ssiz
 
     if (!e_bit) {
         //非末尾包
-        return s_bit ? _frame->keyFrame() : false;
+        return s_bit ? (_frame->keyFrame() || _frame->configFrame()) : false;
     }
 
     //确保下一次fu必须收到第一个包
@@ -175,13 +175,15 @@ bool H265RtpDecoder::mergeFu(const RtpPacket::Ptr &rtp, const uint8_t *ptr, ssiz
 
 bool H265RtpDecoder::inputRtp(const RtpPacket::Ptr &rtp, bool) {
     auto seq = rtp->getSeq();
-    auto ret = decodeRtp(rtp);
+    auto last_is_gop = _is_gop;
+    _is_gop = decodeRtp(rtp);
     if (!_gop_dropped && seq != (uint16_t) (_last_seq + 1) && _last_seq) {
         _gop_dropped = true;
         WarnL << "start drop h265 gop, last seq:" << _last_seq << ", rtp:\r\n" << rtp->dumpString();
     }
     _last_seq = seq;
-    return ret;
+    // 确保有sps rtp的时候，gop从sps开始；否则从关键帧开始
+    return _is_gop && !last_is_gop;
 }
 
 bool H265RtpDecoder::decodeRtp(const RtpPacket::Ptr &rtp) {
@@ -220,7 +222,7 @@ bool H265RtpDecoder::singleFrame(const RtpPacket::Ptr &rtp, const uint8_t *ptr,
     _frame->_buffer.assign("\x00\x00\x00\x01", 4);
     _frame->_buffer.append((char *) ptr, size);
     _frame->_pts = stamp;
-    auto key = _frame->keyFrame();
+    auto key = _frame->keyFrame() || _frame->configFrame();
     outputFrame(rtp, _frame);
     return key;
 }
diff --git a/src/Extension/H265Rtp.h b/src/Extension/H265Rtp.h
index cd9702f4..569d8091 100644
--- a/src/Extension/H265Rtp.h
+++ b/src/Extension/H265Rtp.h
@@ -51,6 +51,7 @@ private:
     void outputFrame(const RtpPacket::Ptr &rtp, const H265Frame::Ptr &frame);
 
 private:
+    bool _is_gop = false;
     bool _using_donl_field = false;
     bool _gop_dropped = false;
     bool _fu_dropped = true;
diff --git a/src/Extension/Track.h b/src/Extension/Track.h
index e7aa2b7c..3a1b8519 100644
--- a/src/Extension/Track.h
+++ b/src/Extension/Track.h
@@ -39,6 +39,11 @@ public:
      */
     virtual Track::Ptr clone() = 0;
 
+    /**
+     * 更新track信息，比如触发sps/pps解析
+     */
+    virtual bool update() { return false; }
+
     /**
      * 生成sdp
      * @return  sdp对象
diff --git a/src/Http/HttpClient.cpp b/src/Http/HttpClient.cpp
index 328872e6..dd1546db 100644
--- a/src/Http/HttpClient.cpp
+++ b/src/Http/HttpClient.cpp
@@ -80,7 +80,7 @@ void HttpClient::sendRequest(const string &url) {
     }
 
     if (!alive() || host_changed) {
-        startConnect(host, port, _wait_header_ms);
+        startConnect(host, port, _wait_header_ms / 1000.0f);
     } else {
         SockException ex;
         onConnect_l(ex);
diff --git a/src/Player/PlayerProxy.cpp b/src/Player/PlayerProxy.cpp
index 2a319ff8..73e46b71 100644
--- a/src/Player/PlayerProxy.cpp
+++ b/src/Player/PlayerProxy.cpp
@@ -70,6 +70,7 @@ void PlayerProxy::setTranslationInfo()
     _transtalion_info.stream_info.clear();
     auto tracks = _muxer->getTracks();
     for (auto &track : tracks) {
+        track->update();
         _transtalion_info.stream_info.emplace_back();
         auto &back = _transtalion_info.stream_info.back();
         back.bitrate = track->getBitRate();
diff --git a/src/Record/MP4Muxer.cpp b/src/Record/MP4Muxer.cpp
index c79cc132..5458a31d 100644
--- a/src/Record/MP4Muxer.cpp
+++ b/src/Record/MP4Muxer.cpp
@@ -198,6 +198,7 @@ bool MP4MuxerInterface::addTrack(const Track::Ptr &track) {
         return false;
     }
 
+    track->update();
     switch (track->getCodecId()) {
         case CodecG711A:
         case CodecG711U:
diff --git a/src/Rtmp/Rtmp.cpp b/src/Rtmp/Rtmp.cpp
index 140afeed..33c46f11 100644
--- a/src/Rtmp/Rtmp.cpp
+++ b/src/Rtmp/Rtmp.cpp
@@ -57,6 +57,7 @@ AudioMeta::AudioMeta(const AudioTrack::Ptr &audio) {
 }
 
 uint8_t getAudioRtmpFlags(const Track::Ptr &track) {
+    track->update();
     switch (track->getTrackType()) {
         case TrackAudio: {
             auto audioTrack = std::dynamic_pointer_cast<AudioTrack>(track);
@@ -115,6 +116,7 @@ uint8_t getAudioRtmpFlags(const Track::Ptr &track) {
 
 void Metadata::addTrack(AMFValue &metadata, const Track::Ptr &track) {
     Metadata::Ptr new_metadata;
+    track->update();
     switch (track->getTrackType()) {
         case TrackVideo: {
             new_metadata = std::make_shared<VideoMeta>(std::dynamic_pointer_cast<VideoTrack>(track));