send status 461 instead of error when multicast is used (#198)

go.mod

@@ -5,7 +5,7 @@ go 1.15
 require (
 	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
 	github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d // indirect
-	github.com/aler9/gortsplib v0.0.0-20210129115125-ec3002e995d9
+	github.com/aler9/gortsplib v0.0.0-20210203222351-9ecea799f5f0
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/fsnotify/fsnotify v1.4.9
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51

go.sum

@@ -2,8 +2,8 @@ github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafo
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d h1:UQZhZ2O0vMHr2cI+DC1Mbh0TJxzA3RcLoMsFw+aXw7E=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
-github.com/aler9/gortsplib v0.0.0-20210129115125-ec3002e995d9 h1:7iZ8cyijoHTNnebbkO1DYZYSCujBxEPPY7eD//TGbi8=
-github.com/aler9/gortsplib v0.0.0-20210129115125-ec3002e995d9/go.mod h1:8P09VjpiPJFyfkVosyF5/TY82jNwkMN165NS/7sc32I=
+github.com/aler9/gortsplib v0.0.0-20210203222351-9ecea799f5f0 h1:GR21cFNTYj4mNdqIz917WqqDQVarc+kKqElBgHXzoG0=
+github.com/aler9/gortsplib v0.0.0-20210203222351-9ecea799f5f0/go.mod h1:8P09VjpiPJFyfkVosyF5/TY82jNwkMN165NS/7sc32I=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=

main_test.go

@@ -314,34 +314,40 @@ func TestPublishRead(t *testing.T) {
 	}
 }
 
-func TestTCPOnly(t *testing.T) {
-	p, ok := testProgram("protocols: [tcp]\n")
-	require.Equal(t, true, ok)
-	defer p.close()
-
-	cnt1, err := newContainer("ffmpeg", "source", []string{
-		"-re",
-		"-stream_loop", "-1",
-		"-i", "emptyvideo.ts",
-		"-c", "copy",
-		"-f", "rtsp",
-		"-rtsp_transport", "tcp",
-		"rtsp://" + ownDockerIP + ":8554/teststream",
-	})
-	require.NoError(t, err)
-	defer cnt1.close()
+func TestAutomaticProtocol(t *testing.T) {
+	for _, source := range []string{
+		"ffmpeg",
+	} {
+		t.Run(source, func(t *testing.T) {
+			p, ok := testProgram("protocols: [tcp]\n")
+			require.Equal(t, true, ok)
+			defer p.close()
 
-	cnt2, err := newContainer("ffmpeg", "dest", []string{
-		"-rtsp_transport", "tcp",
-		"-i", "rtsp://" + ownDockerIP + ":8554/teststream",
-		"-vframes", "1",
-		"-f", "image2",
-		"-y", "/dev/null",
-	})
-	require.NoError(t, err)
-	defer cnt2.close()
+			switch source {
+			case "ffmpeg":
+				cnt1, err := newContainer("ffmpeg", "source", []string{
+					"-re",
+					"-stream_loop", "-1",
+					"-i", "emptyvideo.ts",
+					"-c", "copy",
+					"-f", "rtsp",
+					"rtsp://" + ownDockerIP + ":8554/teststream",
+				})
+				require.NoError(t, err)
+				defer cnt1.close()
+			}
 
-	require.Equal(t, 0, cnt2.wait())
+			cnt2, err := newContainer("ffmpeg", "dest", []string{
+				"-i", "rtsp://" + ownDockerIP + ":8554/teststream",
+				"-vframes", "1",
+				"-f", "image2",
+				"-y", "/dev/null",
+			})
+			require.NoError(t, err)
+			defer cnt2.close()
+			require.Equal(t, 0, cnt2.wait())
+		})
+	}
 }
 
 func TestPath(t *testing.T) {