seven

libipcamera/RTPRelay.go

@@ -11,9 +11,9 @@ import (
 )
 
 type Frame struct {
-	Data []byte
+    Data     []byte
+    Elapsed  uint32
 }
-
 type RTPRelay struct {
 	close    bool
 	listener net.PacketConn
@@ -50,6 +50,8 @@ func (r *RTPRelay) readLoop() {
 
 	frameBuffer := bytes.Buffer{}
 
+	var elapsed uint32 // <-- store last timestamp
+
 	for {
 		r.listener.SetReadDeadline(time.Now().Add(10 * time.Second))
 
@@ -86,12 +88,15 @@ func (r *RTPRelay) readLoop() {
 		case 0x0001:
 			frameBuffer.Write(payload)
 		case 0x0002:
+			if len(payload) >= 16 {
+				elapsed = binary.LittleEndian.Uint32(payload[12:])
+			}
 			// Emit a full H264 frame
 			if frameBuffer.Len() > 0 {
-				cp := append([]byte{}, frameBuffer.Bytes()...)
-				r.Frames <- Frame{Data: cp}
-				frameBuffer.Reset()
-			}
+		        cp := append([]byte{}, frameBuffer.Bytes()...)
+		        r.Frames <- Frame{Data: cp, Elapsed: elapsed}
+		        frameBuffer.Reset()
+		    }
 		}
 	}
 }