Allow transcoding to smaller sizes a configurable and optional feature

app/app.go

@@ -28,15 +28,6 @@ import (
 
 //go:generate rice embed-go
 
-var (
-	SizeMap = map[string]string{
-		"hd720": "720p",
-		"hd480": "480p",
-		"nhd":   "360p",
-		"film":  "240p",
-	}
-)
-
 // App represents main application.
 type App struct {
 	Config    *Config
@@ -327,7 +318,7 @@ func (a *App) uploadHandler(w http.ResponseWriter, r *http.Request) {
 
 		// TODO: Make this a background job
 		// Resize for lower quality options
-		for size, suffix := range SizeMap {
+		for size, suffix := range a.Config.Transcoder.Sizes {
 			log.
 				WithField("size", size).
 				WithField("vf", filepath.Base(vf)).
@@ -518,7 +509,7 @@ func (a *App) importHandler(w http.ResponseWriter, r *http.Request) {
 
 		// TODO: Make this a background job
 		// Resize for lower quality options
-		for size, suffix := range SizeMap {
+		for size, suffix := range a.Config.Transcoder.Sizes {
 			log.
 				WithField("size", size).
 				WithField("vf", filepath.Base(vf)).

app/config.go

@@ -34,9 +34,13 @@ type ThumbnailerConfig struct {
 	Timeout int `json:"timeout"`
 }
 
+// Sizes a map of ffmpeg -s option to suffix. e.g: hd720 -> #720p
+type Sizes map[string]string
+
 // TranscoderConfig settings for Transcoder
 type TranscoderConfig struct {
-	Timeout int `json:"timeout"`
+	Timeout int   `json:"timeout"`
+	Sizes   Sizes `json:"sizes"`
 }
 
 // FeedConfig settings for App Feed.
@@ -73,6 +77,7 @@ func DefaultConfig() *Config {
 		},
 		Transcoder: &TranscoderConfig{
 			Timeout: 300,
+			Sizes:   Sizes(nil),
 		},
 		Feed: &FeedConfig{
 			ExternalURL: "http://localhost:8000",

config.json

@@ -16,7 +16,8 @@
         "timeout": 60
     },
     "transcoder": {
-        "timeout": 300
+        "timeout": 300,
+        "sizes": null
     },
     "feed": {
         "external_url": "",