fix: limit ffprobe concurrency

internal/handler/admin.go

@@ -260,6 +260,9 @@ func updateSettingHandler(svc *service.Container) gin.HandlerFunc {
 			_ = svc.Repo.DB.WithContext(c.Request.Context()).Model(&model.User{}).Where("hide_adult = ?", false).Update("hide_adult", true).Error
 		}
 		service.ApplyRuntimeSetting(svc.Cfg, req.Key, req.Value)
+		if svc.FFprobe != nil && (req.Key == "ffprobe.max_concurrent" || req.Key == "app.ffprobe_max_concurrent") {
+			svc.FFprobe.SetMaxConcurrent(svc.Cfg.App.FFprobeMaxConcurrent)
+		}
 		if req.Key == "transcode.enabled" && !svc.Cfg.Transcoder.Enabled {
 			svc.Transcoder.StopAll()
 		}

internal/handler/system_extra.go

@@ -72,6 +72,7 @@ func schemaHandler(_ *service.Container) gin.HandlerFunc {
 						{"key": "transcode.idle_timeout_seconds", "type": "number", "label": "转码空闲停止秒数"},
 						{"key": "ffmpeg.path", "type": "text", "label": "FFmpeg 路径"},
 						{"key": "ffprobe.path", "type": "text", "label": "FFprobe 路径"},
+						{"key": "ffprobe.max_concurrent", "type": "number", "label": "FFprobe 最大并发"},
 					},
 				},
 				{