Add thumbnails array

goutubedl.go

@@ -109,7 +109,8 @@ type Info struct {
 	Description string `json:"description"`
 	Thumbnail   string `json:"thumbnail"`
 	// not unmarshalled, populated from image thumbnail file
-	ThumbnailBytes []byte `json:"-"`
+	ThumbnailBytes []byte      `json:"-"`
+	Thumbnails     []Thumbnail `json:"thumbnails"`
 
 	Formats   []Format              `json:"formats"`
 	Subtitles map[string][]Subtitle `json:"subtitles"`
@@ -121,6 +122,15 @@ type Info struct {
 	Format
 }
 
+type Thumbnail struct {
+	ID         string `json:"id"`
+	URL        string `json:"url"`
+	Preference int    `json:"preference"`
+	Width      int    `json:"width"`
+	Height     int    `json:"height"`
+	Resolution string `json:"resolution"`
+}
+
 // Format youtube-dl downloadable format
 type Format struct {
 	Ext            string  `json:"ext"`             // Video filename extension