add external playing option for linux

-mpv( with header and subtitle support)
-vlc

lib/controllers/detail_controller.dart

@@ -382,7 +382,8 @@ class DetailPageController extends GetxController {
             await launchMobileExternalPlayer(watchData.url, player);
             return;
           }
-          await launchDesktopExternalPlayer(watchData.url, player);
+          await launchDesktopExternalPlayer(watchData.url, player,
+              watchData.headers ?? {}, watchData.subtitles ?? []);
           return;
         } catch (e) {
           showPlatformSnackbar(

lib/utils/external_player.dart

@@ -1,6 +1,9 @@
 import 'dart:io';
 
 import 'package:android_intent_plus/android_intent.dart';
+import 'package:miru_app/models/index.dart';
+import 'package:miru_app/utils/request.dart';
+import 'package:path_provider/path_provider.dart';
 import 'package:url_launcher/url_launcher_string.dart';
 
 Future<void> launchMobileExternalPlayer(String playUrl, String player) async {
@@ -19,14 +22,49 @@ Future<void> launchMobileExternalPlayer(String playUrl, String player) async {
 }
 
 // desktop
-Future<void> launchDesktopExternalPlayer(String playUrl, String player) async {
+Future<void> launchDesktopExternalPlayer(
+    String playUrl,
+    String player,
+    Map<String, String> headers,
+    List<ExtensionBangumiWatchSubtitle> subs) async {
+  final subLink = subs.map((e) => e.url).toList();
+  //windows
+  if (Platform.isWindows) {
+    switch (player) {
+      case "vlc":
+        const vlc = 'C:\\Program Files\\VideoLAN\\VLC\\vlc.exe';
+        await Process.run(vlc, [playUrl]);
+        break;
+      case "potplayer":
+        await _launchExternalPlayer("potplayer://$playUrl");
+        break;
+    }
+  }
+  //linux
   switch (player) {
     case "vlc":
-      const vlc = 'C:\\Program Files\\VideoLAN\\VLC\\vlc.exe';
-      await Process.run(vlc, [playUrl]);
+      await Process.run("vlc", [playUrl]);
       break;
-    case "potplayer":
-      await _launchExternalPlayer("potplayer://$playUrl");
+    case "mpv":
+      final sub = [];
+      var directory = await getTemporaryDirectory();
+      for (final s in subs) {
+        final fileName = Uri.parse(s.url).pathSegments.last;
+        final response = await dio.get(s.url);
+        final targetPath = '${directory.path}/$fileName';
+        await File(targetPath).writeAsString(response.data);
+        sub.add(targetPath);
+      }
+
+      final uA = headers.remove("User-Agent");
+      final headerFields =
+          headers.entries.map((e) => '${e.key}: ${e.value}').join(', ');
+      await Process.run("mpv", [
+        playUrl,
+        '--user-agent=$uA',
+        if (headerFields.isNotEmpty) '--http-header-fields="$headerFields"',
+        if (subLink.isNotEmpty) '--sub-files=${sub.join(":")}',
+      ]);
       break;
   }
 }

lib/views/pages/settings/settings_page.dart

@@ -235,6 +235,13 @@ class _SettingsPageState extends State<SettingsPage> {
                     "Other": "other",
                   };
                 }
+                if (Platform.isLinux) {
+                  return {
+                    "settings.external-player-builtin".i18n: "built-in",
+                    "VLC": "vlc",
+                    "mpv": "mpv",
+                  };
+                }
                 return {
                   "settings.external-player-builtin".i18n: "built-in",
                   "VLC": "vlc",

linux/CMakeLists.txt

@@ -90,7 +90,7 @@ set_target_properties(${BINARY_NAME}
 # Generated plugin build rules, which manage building the plugins and adding
 # them to the application.
 include(flutter/generated_plugins.cmake)
-
+target_link_libraries(${BINARY_NAME} PRIVATE ${MIMALLOC_LIB})
 
 # === Installation ===
 # By default, "installing" just makes a relocatable bundle in the build