[Video] Minor player tweaks (#5044)

src/view/com/composer/videos/VideoPreview.tsx

@@ -5,6 +5,7 @@ import {ImagePickerAsset} from 'expo-image-picker'
 import {useVideoPlayer, VideoView} from 'expo-video'
 
 import {CompressedVideo} from '#/lib/media/video/types'
+import {clamp} from '#/lib/numbers'
 import {ExternalEmbedRemoveBtn} from 'view/com/composer/ExternalEmbedRemoveBtn'
 import {atoms as a, useTheme} from '#/alf'
 
@@ -25,23 +26,31 @@ export function VideoPreview({
     player.play()
   })
 
-  const aspectRatio = asset.width / asset.height
+  let aspectRatio = asset.width / asset.height
+
+  if (isNaN(aspectRatio)) {
+    aspectRatio = 16 / 9
+  }
+
+  aspectRatio = clamp(aspectRatio, 1 / 1, 3 / 1)
 
   return (
     <View
       style={[
         a.w_full,
         a.rounded_sm,
-        {aspectRatio: isNaN(aspectRatio) ? 16 / 9 : aspectRatio},
+        {aspectRatio},
         a.overflow_hidden,
         a.border,
         t.atoms.border_contrast_low,
+        {backgroundColor: t.palette.black},
       ]}>
       <VideoView
         player={player}
         style={a.flex_1}
         allowsPictureInPicture={false}
         nativeControls={false}
+        contentFit="contain"
       />
       <ExternalEmbedRemoveBtn onRemove={clear} />
     </View>