feat(tvos): add custom image metadata option for tvos and add missing types for custom metadata properties (#3280)

* fix: add typescript types for custom metadata properties
* chore: add possibility to override image metadata of video playback

---------

Co-authored-by: Olivier Bouillet <62574056+freeboub@users.noreply.github.com>

ios/Video/DataStructures/VideoSource.swift

@@ -12,6 +12,7 @@ struct VideoSource {
     let title: String?
     let subtitle: String?
     let description: String?
+    let customImageUri: String?
     
     let json: NSDictionary?
     
@@ -29,6 +30,7 @@ struct VideoSource {
             self.title = nil
             self.subtitle = nil
             self.description = nil
+            self.customImageUri = nil
             return
         }
         self.json = json
@@ -43,5 +45,6 @@ struct VideoSource {
         self.title = json["title"] as? String
         self.subtitle = json["subtitle"] as? String
         self.description = json["description"] as? String
+        self.customImageUri = json["customImageUri"] as? String
     }
 }

ios/Video/Features/RCTVideoUtils.swift

@@ -330,4 +330,15 @@ enum RCTVideoUtils {
         item.extendedLanguageTag = "und"
         return item.copy() as! AVMetadataItem
     }
+    
+    static func createImageMetadataItem(imageUri: String)  -> Data? {
+        if let uri = URL(string: imageUri),
+           let imgData = try? Data(contentsOf: uri),
+           let image = UIImage(data: imgData),
+           let pngData = image.pngData() {
+            return pngData
+        }
+        
+        return nil
+    }
 }

ios/Video/RCTVideo.swift

@@ -408,6 +408,11 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
             mapping[.commonIdentifierDescription] = description
         }
         
+        if let customImageUri = _source?.customImageUri,
+           let imageData = RCTVideoUtils.createImageMetadataItem(imageUri: customImageUri) {
+            mapping[.commonIdentifierArtwork] = imageData
+        }
+        
         if #available(iOS 12.2, *), !mapping.isEmpty {
             playerItem.externalMetadata = RCTVideoUtils.createMetadataItems(for: mapping)
         }