Rewrite stream info API

pkg/srtp/server.go

@@ -3,6 +3,7 @@ package srtp
 import (
 	"encoding/binary"
 	"net"
+	"sync/atomic"
 )
 
 // Server using same UDP port for SRTP and for SRTCP as the iPhone does
@@ -55,6 +56,8 @@ func (s *Server) Serve(conn net.PacketConn) error {
 				}
 			}
 
+			atomic.AddUint32(&session.Recv, uint32(n))
+
 			if err = session.HandleRTP(buf[:n]); err != nil {
 				return err
 			}

pkg/srtp/session.go

@@ -17,6 +17,7 @@ type Session struct {
 
 	Write func(b []byte) (int, error)
 	Track *streamer.Track
+	Recv  uint32
 
 	lastSequence  uint32
 	lastTimestamp uint32