RtpCodec保存和还原Rtp seq

src/Rtsp/RtpCodec.h

@@ -84,7 +84,9 @@ public:
     uint32_t getSsrc() const {
         return _ssrc;
     }
-
+    int16_t getSeq() const {return _seq;}
+    void setSeq(int16_t seq) {_seq = seq;}
+    
     RtpPacket::Ptr makeRtp(TrackType type,const void *data, size_t len, bool mark, uint64_t stamp);
 
 private:

src/Rtsp/RtspMuxer.cpp

@@ -38,6 +38,7 @@ void RtspMuxer::onRtp(RtpPacket::Ptr in, bool is_key) {
         in->ntp_stamp = _ntp_stamp_start + (in->getStamp() * uint64_t(1000) / in->sample_rate);
     }
 #endif
+    _rtp_seq[in->type] = in->getSeq() + 1;
     _rtpRing->write(std::move(in), is_key);
 }
 
@@ -71,7 +72,8 @@ bool RtspMuxer::addTrack(const Track::Ptr &track) {
     if (!encoder) {
         return false;
     }
-
+    auto rtp = std::dynamic_pointer_cast<RtpInfo>(encoder);
+    rtp->setSeq(_rtp_seq[track->getTrackType()]);
     //设置rtp输出环形缓存
     encoder->setRtpRing(_rtpInterceptor);
 

src/Rtsp/RtspMuxer.h

@@ -53,7 +53,7 @@ public:
      * 获取完整的SDP字符串
      * @return SDP字符串
      */
-    std::string getSdp() ;
+    std::string getSdp();
 
     /**
      * 获取rtp环形缓存
@@ -80,7 +80,7 @@ public:
     /**
      * 重置所有track
      */
-    void resetTracks() override ;
+    void resetTracks() override;
 
 private:
     void onRtp(RtpPacket::Ptr in, bool is_key);
@@ -88,6 +88,7 @@ private:
 
 private:
     bool _live = true;
+    uint16_t _rtp_seq[TrackMax]{0};
     uint32_t _rtp_stamp[TrackMax]{0};
     uint64_t _ntp_stamp[TrackMax]{0};
     uint64_t _ntp_stamp_start;