webcam

Overlord-Client/cmd/agent/handlers/webcam.go

@@ -0,0 +1,55 @@
+package handlers
+
+import (
+	"context"
+	"log"
+	"time"
+
+	"overlord-client/cmd/agent/capture"
+	rt "overlord-client/cmd/agent/runtime"
+)
+
+func WebcamStart(ctx context.Context, env *rt.Env) error {
+	fps := env.WebcamFPS
+	if fps <= 0 {
+		fps = 30
+	}
+	if env.WebcamUseMaxFPS {
+		fps = 60
+	}
+	if fps > 120 {
+		fps = 120
+	}
+	interval := time.Second / time.Duration(fps)
+	log.Printf("webcam: starting stream (max fps %d)", fps)
+	defer capture.CleanupWebcam()
+	ticker := time.NewTicker(interval)
+	defer ticker.Stop()
+	lastErrText := ""
+	lastErrLogAt := time.Time{}
+
+	for {
+		select {
+		case <-ctx.Done():
+			log.Printf("webcam: stopping stream")
+			return nil
+		case <-ticker.C:
+			if err := capture.NowWebcam(ctx, env); err != nil {
+				if ctx.Err() != nil {
+					log.Printf("webcam: stopping stream")
+					return nil
+				}
+				errText := err.Error()
+				now := time.Now()
+				if errText != lastErrText || now.Sub(lastErrLogAt) >= 2*time.Second {
+					log.Printf("webcam: capture error: %v", err)
+					lastErrText = errText
+					lastErrLogAt = now
+				}
+			} else {
+				lastErrText = ""
+				lastErrLogAt = time.Time{}
+			}
+		}
+	}
+}