server: fix SETUP in case of no track ID and query parameters

Author: aler9

server_play_test.go

@@ -198,6 +198,18 @@ func TestServerPlayPath(t *testing.T) {
 			"rtsp://localhost:8554/teststream/",
 			"/teststream",
 		},
+		{
+			"without media id, query, ffmpeg",
+			"rtsp://localhost:8554/teststream?testing=123/",
+			"rtsp://localhost:8554/teststream/",
+			"/teststream",
+		},
+		{
+			"without media id, query, gstreamer",
+			"rtsp://localhost:8554/teststream/?testing=123",
+			"rtsp://localhost:8554/teststream/",
+			"/teststream",
+		},
 		{
 			"subpath",
 			"rtsp://localhost:8554/test/stream[control]",

server_session.go

@@ -73,6 +73,9 @@ func getPathAndQueryAndTrackID(u *base.URL) (string, string, string, error) {
 
 	// no track ID and a trailing slash.
 	// this happens when trying to read a MPEG-TS stream with FFmpeg.
+	if strings.HasSuffix(u.RawQuery, "/") {
+		return u.Path, u.RawQuery[:len(u.RawQuery)-1], "0", nil
+	}
 	if strings.HasSuffix(u.Path[1:], "/") {
 		return u.Path[:len(u.Path)-1], u.RawQuery, "0", nil
 	}