Add custom RTMP port number support (#462)

* Bump api spec version

* Add support for custom RTMP port. Closes #454

config/config.go

@@ -26,6 +26,7 @@ type config struct {
 	VersionNumber        string          `yaml:"-"`
 	VideoSettings        videoSettings   `yaml:"videoSettings"`
 	WebServerPort        int             `yaml:"webServerPort"`
+	RTMPServerPort       int             `yaml:"rtmpServerPort"`
 	DisableUpgradeChecks bool            `yaml:"disableUpgradeChecks"`
 	YP                   YP              `yaml:"yp"`
 }
@@ -174,6 +175,14 @@ func (c *config) GetPublicWebServerPort() int {
 	return _default.WebServerPort
 }
 
+func (c *config) GetRTMPServerPort() int {
+	if c.RTMPServerPort != 0 {
+		return c.RTMPServerPort
+	}
+
+	return _default.RTMPServerPort
+}
+
 func (c *config) GetMaxNumberOfReferencedSegmentsInPlaylist() int {
 	if c.Files.MaxNumberInPlaylist > 0 {
 		return c.Files.MaxNumberInPlaylist

config/defaults.go

@@ -3,6 +3,7 @@ package config
 func getDefaults() config {
 	defaults := config{}
 	defaults.WebServerPort = 8080
+	defaults.RTMPServerPort = 1935
 	defaults.VideoSettings.ChunkLengthInSeconds = 4
 	defaults.Files.MaxNumberInPlaylist = 5
 	defaults.YP.Enabled = false