Externally loaded text tracks not loading properly (#3461)

* fix text tracks

* keep map

* use where

* update change log

* fix build error

CHANGELOG.md

@@ -86,6 +86,7 @@
 
 ## Next
 - Android, iOS: add onVolumeChange event #3322
+- iOS: Externally loaded text tracks not loading properly [#3461](https://github.com/react-native-video/react-native-video/pull/3461)
 
 ### Version 6.0.0-alpha.9
 - All: add built-in typescript support [#3266](https://github.com/react-native-video/react-native-video/pull/3266)

ios/Video/Features/RCTPlayerOperations.swift

@@ -18,7 +18,7 @@ enum RCTPlayerOperations {
 
             // The first few tracks will be audio & video track
             var firstTextIndex = 0
-            for i in 0 ..< trackCount where (player?.currentItem?.tracks[i].assetTrack?.hasMediaCharacteristic(.legible)) != nil {
+            for i in 0 ..< trackCount where player?.currentItem?.tracks[i].assetTrack?.hasMediaCharacteristic(.legible) ?? false {
                 firstTextIndex = i
                 break
             }

ios/Video/RCTVideo.swift

@@ -1206,7 +1206,7 @@ class RCTVideo: UIView, RCTVideoPlayerViewControllerDelegate, RCTPlayerObserverH
                                            "orientation": orientation,
                                        ],
                                        "audioTracks": audioTracks,
-                                       "textTracks": textTracks.map(\.json),
+                                       "textTracks": self._textTracks?.compactMap { $0.json } ?? textTracks.map(\.json),
                                        "target": self.reactTag as Any])
                 }
             }