feat: add technical stream info overlay for MPV player

modules/mpv-player/android/src/main/java/expo/modules/mpvplayer/MPVLayerRenderer.kt

@@ -430,6 +430,57 @@ class MPVLayerRenderer(private val context: Context) : MPVLib.EventObserver {
         MPVLib.setPropertyDouble("panscan", panscanValue)
     }
 
+    // MARK: - Technical Info
+
+    fun getTechnicalInfo(): Map<String, Any> {
+        val info = mutableMapOf<String, Any>()
+
+        // Video dimensions
+        MPVLib.getPropertyInt("video-params/w")?.takeIf { it > 0 }?.let {
+            info["videoWidth"] = it
+        }
+        MPVLib.getPropertyInt("video-params/h")?.takeIf { it > 0 }?.let {
+            info["videoHeight"] = it
+        }
+
+        // Video codec
+        MPVLib.getPropertyString("video-format")?.let {
+            info["videoCodec"] = it
+        }
+
+        // Audio codec
+        MPVLib.getPropertyString("audio-codec-name")?.let {
+            info["audioCodec"] = it
+        }
+
+        // FPS (container fps)
+        MPVLib.getPropertyDouble("container-fps")?.takeIf { it > 0 }?.let {
+            info["fps"] = it
+        }
+
+        // Video bitrate (bits per second)
+        MPVLib.getPropertyInt("video-bitrate")?.takeIf { it > 0 }?.let {
+            info["videoBitrate"] = it
+        }
+
+        // Audio bitrate (bits per second)
+        MPVLib.getPropertyInt("audio-bitrate")?.takeIf { it > 0 }?.let {
+            info["audioBitrate"] = it
+        }
+
+        // Demuxer cache duration (seconds of video buffered)
+        MPVLib.getPropertyDouble("demuxer-cache-duration")?.let {
+            info["cacheSeconds"] = it
+        }
+
+        // Dropped frames
+        MPVLib.getPropertyInt("frame-drop-count")?.let {
+            info["droppedFrames"] = it
+        }
+
+        return info
+    }
+
     // MARK: - MPVLib.EventObserver
     
     override fun eventProperty(property: String) {

modules/mpv-player/android/src/main/java/expo/modules/mpvplayer/MpvPlayerModule.kt

@@ -173,6 +173,11 @@ class MpvPlayerModule : Module() {
                 view.isZoomedToFill()
             }
 
+            // Technical info function
+            AsyncFunction("getTechnicalInfo") { view: MpvPlayerView ->
+                view.getTechnicalInfo()
+            }
+
             // Defines events that the view can send to JavaScript
             Events("onLoad", "onPlaybackStateChange", "onProgress", "onError", "onTracksReady")
         }

modules/mpv-player/android/src/main/java/expo/modules/mpvplayer/MpvPlayerView.kt

@@ -330,6 +330,12 @@ class MpvPlayerView(context: Context, appContext: AppContext) : ExpoView(context
         return _isZoomedToFill
     }
 
+    // MARK: - Technical Info
+
+    fun getTechnicalInfo(): Map<String, Any> {
+        return renderer?.getTechnicalInfo() ?: emptyMap()
+    }
+
     // MARK: - MPVLayerRenderer.Delegate
     
     override fun onPositionChanged(position: Double, duration: Double) {