fix(exoplayer): properly handle aspect ratio & subtitles

android/src/main/java/dev/zoriya/omni/OmniView.kt

@@ -4,6 +4,7 @@ import android.app.PictureInPictureParams
 import android.graphics.Rect
 import android.os.Build
 import android.util.Rational
+import android.view.Gravity
 import android.view.SurfaceHolder
 import android.view.SurfaceView
 import android.view.View
@@ -11,6 +12,10 @@ import android.view.ViewGroup
 import android.widget.FrameLayout
 import androidx.core.view.isVisible
 import androidx.media3.common.Player
+import androidx.media3.common.VideoSize
+import androidx.media3.common.text.CueGroup
+import androidx.media3.ui.AspectRatioFrameLayout
+import androidx.media3.ui.SubtitleView
 import com.facebook.react.bridge.LifecycleEventListener
 import com.facebook.react.uimanager.ThemedReactContext
 import com.margelo.nitro.omni.HybridOmniPlayerSpec
@@ -68,6 +73,16 @@ class OmniView(val context: ThemedReactContext) :
         }
     }
 
+    private val contentFrame = AspectRatioFrameLayout(context).apply {
+        setResizeMode(AspectRatioFrameLayout.RESIZE_MODE_FIT)
+        layoutParams = FrameLayout.LayoutParams(
+            FrameLayout.LayoutParams.MATCH_PARENT,
+            FrameLayout.LayoutParams.MATCH_PARENT,
+            Gravity.CENTER
+        )
+        view.addView(this)
+    }
+
     private val surfaceView = SurfaceView(context).apply {
         layoutParams = FrameLayout.LayoutParams(
             FrameLayout.LayoutParams.MATCH_PARENT,
@@ -75,8 +90,19 @@ class OmniView(val context: ThemedReactContext) :
         )
         holder.addCallback(this@OmniView)
         addOnLayoutChangeListener(this@OmniView)
+        contentFrame.addView(this)
+    }
+
+    private val subtitleView = SubtitleView(context).apply {
+        layoutParams = FrameLayout.LayoutParams(
+            FrameLayout.LayoutParams.MATCH_PARENT,
+            FrameLayout.LayoutParams.MATCH_PARENT
+        )
+        setUserDefaultStyle()
+        setUserDefaultTextSize()
         view.addView(this)
     }
+
     private var surfaceReady = false
     private var boundPlayer: OmniPlayer? = null
     private var rootContent: ViewGroup? = null
@@ -94,6 +120,20 @@ class OmniView(val context: ThemedReactContext) :
         context.addLifecycleEventListener(this)
     }
 
+    override fun onVideoSizeChanged(videoSize: VideoSize) {
+        contentFrame.setAspectRatio(
+            if (videoSize.width > 0 && videoSize.height > 0) {
+                videoSize.width * videoSize.pixelWidthHeightRatio / videoSize.height
+            } else {
+                0f
+            }
+        )
+    }
+
+    override fun onCues(cueGroup: CueGroup) {
+        subtitleView.setCues(cueGroup.cues)
+    }
+
     override fun onLayoutChange(
         view: View?,
         left: Int,
@@ -307,7 +347,7 @@ class OmniView(val context: ThemedReactContext) :
             child.visibility = View.GONE
         }
 
-        view.removeView(surfaceView)
+        contentFrame.removeView(surfaceView)
         root.addView(
             surfaceView,
             FrameLayout.LayoutParams(
@@ -331,7 +371,7 @@ class OmniView(val context: ThemedReactContext) :
         }
         rootContentViews = emptyList()
 
-        view.addView(surfaceView, FrameLayout.LayoutParams(
+        contentFrame.addView(surfaceView, FrameLayout.LayoutParams(
             FrameLayout.LayoutParams.MATCH_PARENT,
             FrameLayout.LayoutParams.MATCH_PARENT
         ))

android/src/main/java/dev/zoriya/omni/VlcPlayer.kt

@@ -525,8 +525,9 @@ class VlcPlayer(ctx: Context) :
         val selectedAudio = player.getSelectedTrack(IMedia.Track.Type.Audio)
         val selectedSubtitle = player.getSelectedTrack(IMedia.Track.Type.Text)
 
-        val videoTracks = player.getTracks(IMedia.Track.Type.Video)
-        if (!videoTracks.isNullOrEmpty()) {
+        player.getTracks(IMedia.Track.Type.Video).orEmpty()
+            .groupBy { listOf(it.language, it.name, it.description) }
+            .values.forEach { videoTracks ->
                 val videoFormats = videoTracks.map { track ->
                     Format.Builder()
                         .setId(track.id)
@@ -535,7 +536,7 @@ class VlcPlayer(ctx: Context) :
                         .setSampleMimeType("video/x-unknown")
                         .build()
                 }
-            val group = TrackGroup("vlc-video", *videoFormats.toTypedArray())
+                val group = TrackGroup("vlc-video-${videoTracks.minOf { it.id }}", *videoFormats.toTypedArray())
                 val selected = BooleanArray(videoFormats.size) { idx ->
                     selectedVideo != null && selectedVideo.id == videoTracks[idx].id
                 }
@@ -543,17 +544,23 @@ class VlcPlayer(ctx: Context) :
                 result.add(Group(group, videoFormats.size > 1, support, selected))
             }
 
-        player.getTracks(IMedia.Track.Type.Audio)?.forEach { track ->
-            val format = Format.Builder()
+        player.getTracks(IMedia.Track.Type.Audio).orEmpty()
+            .groupBy { listOf(it.language, it.name, it.description) }
+            .values.forEach { audioTracks ->
+                val audioFormats = audioTracks.map { track ->
+                    Format.Builder()
                         .setId(track.id)
                         .setLabel(track.name)
                         .setLanguage(track.language)
                         .setSampleMimeType("audio/x-unknown")
                         .build()
-            val group = TrackGroup("vlc-audio-${track.id}", format)
-            val selected = booleanArrayOf(selectedAudio != null && selectedAudio.id == track.id)
-            val support = intArrayOf(FORMAT_HANDLED)
-            result.add(Group(group, false, support, selected))
+                }
+                val group = TrackGroup("vlc-audio-${audioTracks.minOf { it.id }}", *audioFormats.toTypedArray())
+                val selected = BooleanArray(audioFormats.size) { idx ->
+                    selectedAudio != null && selectedAudio.id == audioTracks[idx].id
+                }
+                val support = IntArray(audioFormats.size) { FORMAT_HANDLED }
+                result.add(Group(group, audioFormats.size > 1, support, selected))
             }
 
         player.getTracks(IMedia.Track.Type.Text)?.forEach { track ->