[更新MpvPlayer初始化代码]: 调整MpvPlayer类的initMpv方法，增加了对"wid"属性设置的判断逻辑，确保在特定条件下使用默认视频输出模块"libmpv"。

RealChuan · RealChuan · commit 618c5781378e · 2024-06-21T12:43:54.000+08:00
- 修复了在某些情况下，MpvPlayer可能无法正确设置窗口ID的问题。
- 增加了对"vo"选项的设置，以确保在窗口ID无效时，能够回退到默认的视频输出模块。
diff --git a/src/mpv/mpvplayer.cc b/src/mpv/mpvplayer.cc
@@ -624,6 +624,8 @@ void MpvPlayer::initMpv(QWidget *widget)
         int64_t wid = raw_wid;
 #endif
         mpv_set_property(d_ptr->mpv, "wid", MPV_FORMAT_INT64, &wid);
+    } else {
+        mpv_set_option_string(d_ptr->mpv, "vo", "libmpv");
     }
     // Enable default bindings, because we're lazy. Normally, a player using
     // mpv as backend would implement its own key bindings.

Original file line number	Diff line number	Diff line change
`@@ -624,6 +624,8 @@ void MpvPlayer::initMpv(QWidget *widget)`
`624`	`624`	`int64_t wid = raw_wid;`
`625`	`625`	`#endif`
`626`	`626`	`mpv_set_property(d_ptr->mpv, "wid", MPV_FORMAT_INT64, &wid);`
	`627`	`+ } else {`
	`628`	`+ mpv_set_option_string(d_ptr->mpv, "vo", "libmpv");`
`627`	`629`	`}`
`628`	`630`	`// Enable default bindings, because we're lazy. Normally, a player using`
`629`	`631`	`// mpv as backend would implement its own key bindings.`