mod: 视频播放器重构 - 基本功能

lib/plugin/pl_player/models/data_source.dart

@@ -0,0 +1,55 @@
+import 'dart:io';
+
+/// The way in which the video was originally loaded.
+///
+/// This has nothing to do with the video's file type. It's just the place
+/// from which the video is fetched from.
+enum DataSourceType {
+  /// The video was included in the app's asset files.
+  asset,
+
+  /// The video was downloaded from the internet.
+  network,
+
+  /// The video was loaded off of the local filesystem.
+  file,
+
+  /// The video is available via contentUri. Android only.
+  contentUri,
+}
+
+class DataSource {
+  File? file;
+  String? videoSource;
+  String? audioSource;
+  String? subFiles;
+  DataSourceType type;
+  Map<String, String>? httpHeaders; // for headers
+  DataSource({
+    this.file,
+    this.videoSource,
+    this.audioSource,
+    this.subFiles,
+    required this.type,
+    this.httpHeaders,
+  }) : assert((type == DataSourceType.file && file != null) ||
+            videoSource != null);
+
+  DataSource copyWith({
+    File? file,
+    String? videoSource,
+    String? audioSource,
+    String? subFiles,
+    DataSourceType? type,
+    Map<String, String>? httpHeaders,
+  }) {
+    return DataSource(
+      file: file ?? this.file,
+      videoSource: videoSource ?? this.videoSource,
+      audioSource: audioSource ?? this.audioSource,
+      subFiles: subFiles ?? this.subFiles,
+      type: type ?? this.type,
+      httpHeaders: httpHeaders ?? this.httpHeaders,
+    );
+  }
+}