Fix: audio subprocess handling

cmd/main.go

@@ -11,6 +11,7 @@ import (
 func main() {
 	versionPtr := flag.Bool("version", false, "print version and exit")
 	versionJsonPtr := flag.Bool("version-json", false, "print version as json and exit")
+	audioServerPtr := flag.Bool("audio-server", false, "Run as audio server subprocess")
 	flag.Parse()
 
 	if *versionPtr || *versionJsonPtr {
@@ -23,5 +24,5 @@ func main() {
 		return
 	}
 
-	kvm.Main()
+	kvm.Main(*audioServerPtr)
 }

main.go

@@ -2,7 +2,6 @@ package kvm
 
 import (
 	"context"
-	"flag"
 	"fmt"
 	"net/http"
 	"os"
@@ -113,12 +112,10 @@ func startAudioSubprocess() error {
 	return nil
 }
 
-func Main() {
-	// Initialize flag and channel
-	flag.BoolVar(&isAudioServer, "audio-server", false, "Run as audio server subprocess")
+func Main(audioServer bool) {
+	// Initialize channel and set audio server flag
+	isAudioServer = audioServer
 	audioProcessDone = make(chan struct{})
-	
-	flag.Parse()
 
 	// If running as audio server, only initialize audio processing
 	if isAudioServer {

web.go

@@ -223,7 +223,7 @@ func setupRouter() *gin.Engine {
 			"bytes_processed":  metrics.BytesProcessed,
 			"last_frame_time":  metrics.LastFrameTime,
 			"connection_drops": metrics.ConnectionDrops,
-			"average_latency":  metrics.AverageLatency.String(),
+			"average_latency":  fmt.Sprintf("%.1fms", float64(metrics.AverageLatency.Nanoseconds())/1e6),
 		})
 	})
 
@@ -410,7 +410,7 @@ func setupRouter() *gin.Engine {
 				"bytes_processed":  0,
 				"last_frame_time":  "",
 				"connection_drops": 0,
-				"average_latency":  "0s",
+				"average_latency":  "0.0ms",
 			})
 			return
 		}
@@ -422,7 +422,7 @@ func setupRouter() *gin.Engine {
 			"bytes_processed":  metrics.BytesProcessed,
 			"last_frame_time":  metrics.LastFrameTime.Format("2006-01-02T15:04:05.000Z"),
 			"connection_drops": metrics.ConnectionDrops,
-			"average_latency":  metrics.AverageLatency.String(),
+			"average_latency":  fmt.Sprintf("%.1fms", float64(metrics.AverageLatency.Nanoseconds())/1e6),
 		})
 	})