Merge pull request #17 from jianglieshan/aler9

fix:修改rtsp插件作为服务端出流时，ssrc为0的bug

client.go

@@ -165,6 +165,9 @@ func (client *RTSPClient) pullStream() {
 		Printf("connect:%s error:%v", client.URL, err)
 		return
 	}
+	client.OnClose = func() {
+		client.Client.Close()
+	}
 	//client.close should be after connected!
 	defer client.Client.Close()
 	var res *base.Response

server.go

@@ -75,7 +75,7 @@ func (sh *RTSPServer) OnDescribe(ctx *gortsplib.ServerHandlerOnDescribeCtx) (*ba
 		sub.Type = "RTSP pull"
 		sub.vt = s.WaitVideoTrack("h264", "h265")
 		sub.at = s.WaitAudioTrack("aac", "pcma", "pcmu")
-		ssrc := uintptr(unsafe.Pointer(stream))
+		ssrc := uintptr(unsafe.Pointer(&stream))
 		var trackIds = 0
 		if sub.vt != nil {
 			trackId := trackIds
@@ -98,7 +98,13 @@ func (sh *RTSPServer) OnDescribe(ctx *gortsplib.ServerHandlerOnDescribeCtx) (*ba
 			var st uint32
 			onVideo := func(ts uint32, pack *engine.VideoPack) {
 				for i, nalu := range pack.NALUs {
-					packs := vpacketer.Packetize(nalu, (ts-st)*90)
+					var samples uint32
+					if i == len(pack.NALUs)-1 {
+						samples = (ts - st) * 90
+					} else {
+						samples = 0
+					}
+					packs := vpacketer.Packetize(nalu, samples)
 					for j, rtpack := range packs {
 						rtpack.Marker = i == len(pack.NALUs)-1 && j == len(packs)-1
 						rtp, _ := rtpack.Marshal()