refactor(video_player): change audio track selection to use track object instead of ID

- Modified selectAudioTrack to accept VideoAudioTrack object instead of string trackId
- Replaced single id field with groupIndex and trackIndex integers in VideoAudioTrack
- Updated equality, hashCode, and toString methods to reflect new track identification structure

Author: nateshmbhat

packages/video_player/video_player_platform_interface/CHANGELOG.md

@@ -1,3 +1,10 @@
+## 7.0.0
+
+* **BREAKING CHANGE**: Refactors audio track identification system:
+  * `VideoAudioTrack.id` (String) replaced with separate `groupIndex` (int) and `trackIndex` (int) properties.
+  * `selectAudioTrack(int playerId, String trackId)` changed to `selectAudioTrack(int playerId, VideoAudioTrack track)` - now accepts the full track object instead of separate parameters.
+  * This change provides better type safety and a more intuitive API for audio track selection.
+
 ## 6.6.0
 
 * Adds `VideoAudioTrack` class and `getAudioTracks()`, `selectAudioTrack()`, `isAudioTrackSupportAvailable()` methods for audio track management.

packages/video_player/video_player_platform_interface/lib/video_player_platform_interface.dart

@@ -134,8 +134,11 @@ abstract class VideoPlayerPlatform extends PlatformInterface {
     throw UnimplementedError('getAudioTracks() has not been implemented.');
   }
 
-  /// Selects which audio track is chosen for playback from its [trackId]
-  Future<void> selectAudioTrack(int playerId, String trackId) {
+  /// Selects which audio track is chosen for playback.
+  ///
+  /// The [track] parameter should be one of the tracks returned by [getAudioTracks].
+  /// Platform implementations will extract the necessary indices from the track object.
+  Future<void> selectAudioTrack(int playerId, VideoAudioTrack track) {
     throw UnimplementedError('selectAudioTrack() has not been implemented.');
   }
 
@@ -567,7 +570,8 @@ class VideoCreationOptions {
 class VideoAudioTrack {
   /// Constructs an instance of [VideoAudioTrack].
   const VideoAudioTrack({
-    required this.id,
+    required this.groupIndex,
+    required this.trackIndex,
     required this.label,
     required this.language,
     required this.isSelected,
@@ -577,8 +581,11 @@ class VideoAudioTrack {
     this.codec,
   });
 
-  /// Unique identifier for the audio track.
-  final String id;
+  /// The group index of the audio track.
+  final int groupIndex;
+
+  /// The track index within the group.
+  final int trackIndex;
 
   /// Human-readable label for the track.
   ///
@@ -618,7 +625,8 @@ class VideoAudioTrack {
     return identical(this, other) ||
         other is VideoAudioTrack &&
             runtimeType == other.runtimeType &&
-            id == other.id &&
+            groupIndex == other.groupIndex &&
+            trackIndex == other.trackIndex &&
             label == other.label &&
             language == other.language &&
             isSelected == other.isSelected &&
@@ -630,7 +638,8 @@ class VideoAudioTrack {
 
   @override
   int get hashCode => Object.hash(
-    id,
+    groupIndex,
+    trackIndex,
     label,
     language,
     isSelected,
@@ -643,7 +652,8 @@ class VideoAudioTrack {
   @override
   String toString() =>
       'VideoAudioTrack('
-      'id: $id, '
+      'groupIndex: $groupIndex, '
+      'trackIndex: $trackIndex, '
       'label: $label, '
       'language: $language, '
       'isSelected: $isSelected, '

packages/video_player/video_player_platform_interface/pubspec.yaml

@@ -4,7 +4,7 @@ repository: https://github.com/flutter/packages/tree/main/packages/video_player/
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+video_player%22
 # NOTE: We strongly prefer non-breaking changes, even at the expense of a
 # less-clean API. See https://flutter.dev/go/platform-interface-breaking-changes
-version: 6.6.0
+version: 7.0.0
 
 environment:
   sdk: ^3.7.0

packages/video_player/video_player_platform_interface/test/video_player_platform_interface_test.dart

@@ -30,8 +30,15 @@ void main() {
   test(
     'default implementation selectAudioTrack throws unimplemented',
     () async {
+      const VideoAudioTrack track = VideoAudioTrack(
+        groupIndex: 0,
+        trackIndex: 0,
+        label: 'Test',
+        language: 'en',
+        isSelected: false,
+      );
       await expectLater(
-        () => initialInstance.selectAudioTrack(1, 'trackId'),
+        () => initialInstance.selectAudioTrack(1, track),
         throwsUnimplementedError,
       );
     },