Make audio stream optional for preview generation (#1454)

pkg/manager/config/config.go

@@ -56,14 +56,17 @@ const CalculateMD5 = "calculate_md5"
 // should be used when generating and using generated files for scenes.
 const VideoFileNamingAlgorithm = "video_file_naming_algorithm"
 
-const PreviewPreset = "preview_preset"
-
 const MaxTranscodeSize = "max_transcode_size"
 const MaxStreamingTranscodeSize = "max_streaming_transcode_size"
 
 const ParallelTasks = "parallel_tasks"
 const parallelTasksDefault = 1
 
+const PreviewPreset = "preview_preset"
+
+const PreviewAudio = "preview_audio"
+const previewAudioDefault = true
+
 const PreviewSegmentDuration = "preview_segment_duration"
 const previewSegmentDurationDefault = 0.75
 
@@ -403,6 +406,11 @@ func (i *Instance) GetParallelTasksWithAutoDetection() int {
 	return parallelTasks
 }
 
+func (i *Instance) GetPreviewAudio() bool {
+	viper.SetDefault(PreviewAudio, previewAudioDefault)
+	return viper.GetBool(PreviewAudio)
+}
+
 // GetPreviewSegments returns the amount of segments in a scene preview file.
 func (i *Instance) GetPreviewSegments() int {
 	return viper.GetInt(PreviewSegments)
@@ -560,7 +568,6 @@ func (i *Instance) GetMenuItems() []string {
 }
 
 func (i *Instance) GetSoundOnPreview() bool {
-	viper.SetDefault(SoundOnPreview, false)
 	return viper.GetBool(SoundOnPreview)
 }
 
@@ -740,6 +747,7 @@ func (i *Instance) setDefaultValues() error {
 	viper.SetDefault(PreviewSegments, previewSegmentsDefault)
 	viper.SetDefault(PreviewExcludeStart, previewExcludeStartDefault)
 	viper.SetDefault(PreviewExcludeEnd, previewExcludeEndDefault)
+	viper.SetDefault(SoundOnPreview, false)
 
 	viper.SetDefault(Database, i.GetDefaultDatabaseFilePath())