fix: play videos from sd card

close #323

android/app/src/main/kotlin/com/edde746/plezy/exoplayer/ExoPlayerPlugin.kt

@@ -1,6 +1,7 @@
 package com.edde746.plezy.exoplayer
 
 import android.app.Activity
+import android.net.Uri
 import android.util.Log
 import com.edde746.plezy.mpv.MpvPlayerCore
 import com.edde746.plezy.mpv.MpvPlayerDelegate
@@ -190,7 +191,9 @@ class ExoPlayerPlugin : FlutterPlugin, MethodChannel.MethodCallHandler,
                     options.add("http-header-fields-append=$key: $value")
                 }
                 val optionsStr = options.joinToString(",")
-                mpvCore?.command(arrayOf("loadfile", uri, "replace", "-1", optionsStr))
+                // Convert content:// URIs to fdclose:// for MPV (SAF SD card downloads)
+                val mpvUri = openContentFd(uri)?.let { "fdclose://$it" } ?: uri
+                mpvCore?.command(arrayOf("loadfile", mpvUri, "replace", "-1", optionsStr))
             } else {
                 playerCore?.open(uri, headers, startPositionMs, autoPlay)
             }
@@ -502,6 +505,25 @@ class ExoPlayerPlugin : FlutterPlugin, MethodChannel.MethodCallHandler,
         eventSink?.success(event)
     }
 
+    /**
+     * Opens a content:// URI via ContentResolver and returns the raw FD number,
+     * or null if the URI is not a content:// scheme or opening fails.
+     * The returned FD is detached so MPV can own and close it via fdclose://.
+     */
+    private fun openContentFd(uriString: String): Int? {
+        if (!uriString.startsWith("content://")) return null
+        return try {
+            val uri = Uri.parse(uriString)
+            val pfd = activity?.contentResolver?.openFileDescriptor(uri, "r") ?: return null
+            val fd = pfd.detachFd()
+            Log.d(TAG, "Opened content FD $fd for $uriString")
+            fd
+        } catch (e: Exception) {
+            Log.e(TAG, "Failed to open content FD: ${e.message}", e)
+            null
+        }
+    }
+
     override fun onFormatUnsupported(
         uri: String,
         headers: Map<String, String>?,
@@ -561,7 +583,9 @@ class ExoPlayerPlugin : FlutterPlugin, MethodChannel.MethodCallHandler,
                     options.add("http-header-fields-append=$key: $value")
                 }
                 val optionsStr = options.joinToString(",")
-                mpvCore?.command(arrayOf("loadfile", uri, "replace", "-1", optionsStr))
+                // Convert content:// URIs to fdclose:// for MPV (SAF SD card downloads)
+                val mpvUri = openContentFd(uri)?.let { "fdclose://$it" } ?: uri
+                mpvCore?.command(arrayOf("loadfile", mpvUri, "replace", "-1", optionsStr))
 
                 // Request audio focus
                 mpvCore?.requestAudioFocus()

android/app/src/main/kotlin/com/edde746/plezy/mpv/MpvPlayerPlugin.kt

@@ -1,6 +1,7 @@
 package com.edde746.plezy.mpv
 
 import android.app.Activity
+import android.net.Uri
 import android.util.Log
 import io.flutter.embedding.engine.plugins.FlutterPlugin
 import io.flutter.embedding.engine.plugins.activity.ActivityAware
@@ -98,6 +99,7 @@ class MpvPlayerPlugin : FlutterPlugin, MethodChannel.MethodCallHandler,
             "clearVideoFrameRate" -> handleClearVideoFrameRate(result)
             "requestAudioFocus" -> handleRequestAudioFocus(result)
             "abandonAudioFocus" -> handleAbandonAudioFocus(result)
+            "openContentFd" -> handleOpenContentFd(call, result)
             "isInitialized" -> result.success(playerCore?.isInitialized ?: false)
             else -> result.notImplemented()
         }
@@ -236,6 +238,37 @@ class MpvPlayerPlugin : FlutterPlugin, MethodChannel.MethodCallHandler,
         result.success(null)
     }
 
+    private fun handleOpenContentFd(call: MethodCall, result: MethodChannel.Result) {
+        val uriString = call.argument<String>("uri")
+        if (uriString == null) {
+            result.error("INVALID_ARGS", "Missing 'uri'", null)
+            return
+        }
+
+        try {
+            val uri = Uri.parse(uriString)
+            val contentResolver = activity?.contentResolver
+            if (contentResolver == null) {
+                result.error("NO_ACTIVITY", "Activity not available", null)
+                return
+            }
+
+            val pfd = contentResolver.openFileDescriptor(uri, "r")
+            if (pfd == null) {
+                result.error("OPEN_FAILED", "Failed to open file descriptor for $uriString", null)
+                return
+            }
+
+            // detachFd() transfers ownership of the FD to the caller (MPV via fdclose://)
+            val fd = pfd.detachFd()
+            Log.d(TAG, "Opened content FD $fd for $uriString")
+            result.success(fd)
+        } catch (e: Exception) {
+            Log.e(TAG, "Failed to open content FD: ${e.message}", e)
+            result.error("OPEN_FAILED", e.message, null)
+        }
+    }
+
     // MpvPlayerDelegate
 
     override fun onPropertyChange(name: String, value: Any?) {

lib/mpv/player/player_native.dart

@@ -84,6 +84,17 @@ class PlayerNative extends PlayerBase {
   // Playback Control
   // ============================================
 
+  /// Opens a content:// URI via the platform channel and returns the raw FD number.
+  /// Returns null if the call fails.
+  Future<int?> _openContentFd(String contentUri) async {
+    try {
+      final fd = await methodChannel.invokeMethod<int>('openContentFd', {'uri': contentUri});
+      return fd;
+    } catch (e) {
+      return null;
+    }
+  }
+
   @override
   Future<void> open(Media media, {bool play = true}) async {
     checkDisposed();
@@ -113,7 +124,16 @@ class PlayerNative extends PlayerBase {
       await setProperty('pause', 'yes');
     }
 
-    await command(['loadfile', media.uri, 'replace']);
+    // Convert content:// URIs to fdclose:// for MPV on Android (SAF SD card downloads)
+    var uri = media.uri;
+    if (Platform.isAndroid && uri.startsWith('content://')) {
+      final fd = await _openContentFd(uri);
+      if (fd != null) {
+        uri = 'fdclose://$fd';
+      }
+    }
+
+    await command(['loadfile', uri, 'replace']);
   }
 
   @override

lib/screens/video_player_screen.dart

@@ -885,7 +885,7 @@ class VideoPlayerScreenState extends State<VideoPlayerScreen> with WidgetsBindin
 
     return PlaybackInitializationResult(
       availableVersions: [],
-      videoUrl: 'file://$videoPath',
+      videoUrl: videoPath.contains('://') ? videoPath : 'file://$videoPath',
       mediaInfo: null,
       externalSubtitles: const [],
       isOffline: true,