Various improvements

submodules/TelegramCore/Sources/Utils/ImageRepresentationsUtils.swift

@@ -2,6 +2,25 @@ import Postbox
 import TelegramApi
 import MtProtoKit
 
+public func smallestVideoRepresentation(_ representations: [TelegramMediaImage.VideoRepresentation]) -> TelegramMediaImage.VideoRepresentation? {
+    if representations.count == 0 {
+        return nil
+    } else {
+        var dimensions = representations[0].dimensions
+        var index = 0
+        
+        for i in 1 ..< representations.count {
+            let representationDimensions = representations[i].dimensions
+            if representationDimensions.width < dimensions.width && representationDimensions.height < dimensions.height {
+                dimensions = representationDimensions
+                index = i
+            }
+        }
+        
+        return representations[index]
+    }
+}
+
 public func smallestImageRepresentation(_ representations: [TelegramMediaImageRepresentation]) -> TelegramMediaImageRepresentation? {
     if representations.count == 0 {
         return nil