feat: load the user's mpv.conf

src/qml/Main.qml

@@ -33,6 +33,7 @@ Kirigami.ApplicationWindow {
         id: settingsPage
         SettingsPage {
             translator: player.translator
+            mpvItem: player.mpvItem
         }
     }
 

src/qml/PlayerPage.qml

@@ -14,6 +14,7 @@ Kirigami.Page {
     property bool fullScreen: false
     readonly property alias mediaTitle: mpv.mediaTitle
     readonly property alias translator: translator
+    readonly property MpvItem mpvItem: mpv
 
     signal aboutRequested()
     signal settingsRequested()
@@ -175,6 +176,9 @@ Kirigami.Page {
 
         MpvItem {
             id: mpv
+            loadUserConfig: QtPotatoSettings.loadMpvConfig
+            // QtPotato's own subtitle settings win over mpv.conf.
+            onUserConfigApplied: page.applySubtitleStyle()
             anchors {
                 left: parent.left
                 right: parent.right

src/qml/SettingsPage.qml

@@ -9,6 +9,7 @@ FormCard.FormCardPage {
     id: page
 
     required property TranslationService translator
+    required property MpvItem mpvItem
 
     title: KI18n.i18nc("@title", "Settings")
 
@@ -27,6 +28,32 @@ FormCard.FormCardPage {
         onVisibleChanged: if (!visible) page.translator.clearError()
     }
 
+    FormCard.FormHeader {
+        title: KI18n.i18nc("@title:group", "Player")
+    }
+
+    FormCard.FormCard {
+        FormCard.FormSwitchDelegate {
+            text: KI18n.i18nc("@option:check", "Use mpv.conf")
+            description: KI18n.i18nc("@info", "Reads mpv.conf from %1, like the mpv player does. Changes apply the next time QtPotato starts. Subtitle text size and outline set below take precedence.", page.mpvItem.userConfigDir)
+            checked: QtPotatoSettings.loadMpvConfig
+            onToggled: QtPotatoSettings.loadMpvConfig = checked
+        }
+
+        FormCard.FormDelegateSeparator {}
+
+        FormCard.FormTextDelegate {
+            text: page.mpvItem.loadedUserConfigFiles.length > 0
+                ? KI18n.i18nc("@info", "Loaded: %1", page.mpvItem.loadedUserConfigFiles.join(", "))
+                : (QtPotatoSettings.loadMpvConfig
+                    ? KI18n.i18nc("@info", "No mpv.conf found")
+                    : KI18n.i18nc("@info", "mpv.conf is not used"))
+            description: page.mpvItem.skippedUserOptions.length > 0
+                ? KI18n.i18nc("@info", "Ignored because they would break the built-in player: %1", page.mpvItem.skippedUserOptions.join(", "))
+                : ""
+        }
+    }
+
     FormCard.FormHeader {
         title: KI18n.i18nc("@title:group", "Subtitles")
     }