feat(player): add mpv cache and buffer configuration

modules/mpv-player/ios/MPVLayerRenderer.swift

@@ -300,7 +300,11 @@ final class MPVLayerRenderer {
         startPosition: Double? = nil,
         externalSubtitles: [String]? = nil,
         initialSubtitleId: Int? = nil,
-        initialAudioId: Int? = nil
+        initialAudioId: Int? = nil,
+        cacheEnabled: String? = nil,
+        cacheSeconds: Int? = nil,
+        demuxerMaxBytes: Int? = nil,
+        demuxerMaxBackBytes: Int? = nil
     ) {
         currentPreset = preset
         currentURL = url
@@ -323,6 +327,21 @@ final class MPVLayerRenderer {
             // Stop previous playback before loading new file
             self.command(handle, ["stop"])
             self.updateHTTPHeaders(headers)
+
+            // Apply cache/buffer settings
+            if let cacheMode = cacheEnabled {
+                self.setProperty(name: "cache", value: cacheMode)
+            }
+            if let cacheSecs = cacheSeconds {
+                self.setProperty(name: "cache-secs", value: String(cacheSecs))
+            }
+            if let maxBytes = demuxerMaxBytes {
+                self.setProperty(name: "demuxer-max-bytes", value: "\(maxBytes)MiB")
+            }
+            if let maxBackBytes = demuxerMaxBackBytes {
+                self.setProperty(name: "demuxer-max-back-bytes", value: "\(maxBackBytes)MiB")
+            }
+
             // Set start position
             if let startPos = startPosition, startPos > 0 {
                 self.setProperty(name: "start", value: String(format: "%.2f", startPos))

modules/mpv-player/ios/MpvPlayerModule.swift

@@ -29,7 +29,10 @@ public class MpvPlayerModule: Module {
         guard let source = source,
               let urlString = source["url"] as? String,
               let videoURL = URL(string: urlString) else { return }
-        
+
+        // Parse cache config if provided
+        let cacheConfig = source["cacheConfig"] as? [String: Any]
+
         let config = VideoLoadConfig(
           url: videoURL,
           headers: source["headers"] as? [String: String],
@@ -37,9 +40,13 @@ public class MpvPlayerModule: Module {
           startPosition: source["startPosition"] as? Double,
           autoplay: (source["autoplay"] as? Bool) ?? true,
           initialSubtitleId: source["initialSubtitleId"] as? Int,
-          initialAudioId: source["initialAudioId"] as? Int
+          initialAudioId: source["initialAudioId"] as? Int,
+          cacheEnabled: cacheConfig?["enabled"] as? String,
+          cacheSeconds: cacheConfig?["cacheSeconds"] as? Int,
+          demuxerMaxBytes: cacheConfig?["maxBytes"] as? Int,
+          demuxerMaxBackBytes: cacheConfig?["maxBackBytes"] as? Int
         )
-        
+
         view.loadVideo(config: config)
       }
 

modules/mpv-player/ios/MpvPlayerView.swift

@@ -15,7 +15,12 @@ struct VideoLoadConfig {
 	var initialSubtitleId: Int?
 	/// MPV audio track ID to select on start (1-based, nil to use default)
 	var initialAudioId: Int?
-	
+	/// Cache/buffer settings
+	var cacheEnabled: String?  // "auto", "yes", or "no"
+	var cacheSeconds: Int?     // Seconds of video to buffer
+	var demuxerMaxBytes: Int?  // Max cache size in MB
+	var demuxerMaxBackBytes: Int?  // Max backward cache size in MB
+
 	init(
 		url: URL,
 		headers: [String: String]? = nil,
@@ -23,7 +28,11 @@ struct VideoLoadConfig {
 		startPosition: Double? = nil,
 		autoplay: Bool = true,
 		initialSubtitleId: Int? = nil,
-		initialAudioId: Int? = nil
+		initialAudioId: Int? = nil,
+		cacheEnabled: String? = nil,
+		cacheSeconds: Int? = nil,
+		demuxerMaxBytes: Int? = nil,
+		demuxerMaxBackBytes: Int? = nil
 	) {
 		self.url = url
 		self.headers = headers
@@ -32,6 +41,10 @@ struct VideoLoadConfig {
 		self.autoplay = autoplay
 		self.initialSubtitleId = initialSubtitleId
 		self.initialAudioId = initialAudioId
+		self.cacheEnabled = cacheEnabled
+		self.cacheSeconds = cacheSeconds
+		self.demuxerMaxBytes = demuxerMaxBytes
+		self.demuxerMaxBackBytes = demuxerMaxBackBytes
 	}
 }
 
@@ -151,13 +164,17 @@ class MpvPlayerView: ExpoView {
 			startPosition: config.startPosition,
 			externalSubtitles: config.externalSubtitles,
 			initialSubtitleId: config.initialSubtitleId,
-			initialAudioId: config.initialAudioId
+			initialAudioId: config.initialAudioId,
+			cacheEnabled: config.cacheEnabled,
+			cacheSeconds: config.cacheSeconds,
+			demuxerMaxBytes: config.demuxerMaxBytes,
+			demuxerMaxBackBytes: config.demuxerMaxBackBytes
 		)
-		
+
 		if config.autoplay {
 			play()
 		}
-		
+
 		onLoad(["url": config.url.absoluteString])
 	}
 	

modules/mpv-player/src/MpvPlayer.types.ts

@@ -43,6 +43,17 @@ export type VideoSource = {
   initialSubtitleId?: number;
   /** MPV audio track ID to select on start (1-based) */
   initialAudioId?: number;
+  /** MPV cache/buffer configuration */
+  cacheConfig?: {
+    /** Whether caching is enabled: "auto" (default), "yes", or "no" */
+    enabled?: "auto" | "yes" | "no";
+    /** Seconds of video to buffer (default: 10, range: 5-120) */
+    cacheSeconds?: number;
+    /** Maximum cache size in MB (default: 150, range: 50-500) */
+    maxBytes?: number;
+    /** Maximum backward cache size in MB (default: 50, range: 25-200) */
+    maxBackBytes?: number;
+  };
 };
 
 export type MpvPlayerViewProps = {