tmp fix video qos reset

Signed-off-by: 21pages <pages21@163.com>

src/server/video_qos.rs

@@ -221,7 +221,9 @@ impl VideoQoS {
     }
 
     pub fn reset(&mut self) {
-        *self = Default::default();
+        self.fps = FPS;
+        self.user_fps = FPS;
+        self.updated = true;
     }
 
     pub fn check_abr_config(&mut self) -> bool {

src/server/video_service.rs

@@ -547,7 +547,7 @@ fn run(sp: GenericService) -> ResultType<()> {
         check_uac_switch(c.privacy_mode_id, c._capturer_privacy_mode_id)?;
 
         let mut video_qos = VIDEO_QOS.lock().unwrap();
-        if video_qos.check_if_updated() {
+        if video_qos.check_if_updated() && video_qos.target_bitrate > 0 {
             log::debug!(
                 "qos is updated, target_bitrate:{}, fps:{}",
                 video_qos.target_bitrate,