Make setting the offline content optional

config-example.yaml

@@ -25,7 +25,6 @@ instanceDetails:
 videoSettings:
   # Change this value and keep it secure.  Treat it like a password to your live stream.
   streamingKey: abc123
-  offlineContent: static/offline.m4v # Is displayed when a stream ends
 
   // Determine the bitrate of your stream variants.
   // See https://github.com/gabek/owncast/blob/master/doc/configuration.md#video-quality for details.

config/config.go

@@ -197,6 +197,15 @@ func (c *config) GetMaxNumberOfReferencedSegmentsInPlaylist() int {
 	return 20
 }
 
+func (c *config) GetOfflineContentPath() string {
+	if c.VideoSettings.OfflineContent != "" {
+		return c.VideoSettings.OfflineContent
+	}
+
+	// This is relative to the webroot, not the project root.
+	return "static/offline.m4"
+}
+
 //Load tries to load the configuration file
 func Load(filePath string, versionInfo string) error {
 	Config = new(config)

core/ffmpeg/ffmpeg.go

@@ -9,6 +9,6 @@ func ShowStreamOfflineState() {
 	transcoder := NewTranscoder()
 	transcoder.SetSegmentLength(10)
 	transcoder.SetAppendToStream(true)
-	transcoder.SetInput(config.Config.VideoSettings.OfflineContent)
+	transcoder.SetInput(config.Config.GetOfflineContentPath())
 	transcoder.Start()
 }