From 05c2d4c583e7ec35722dbed69ed358b7b90d1fcd Mon Sep 17 00:00:00 2001
From: Cedric Verstraeten <cedric@verstraeten.io>
Date: Sat, 7 Jan 2023 08:39:00 +0100
Subject: [PATCH] make sure the stream is ready before we start sending stream
 over websocket (#48)

fix for https://github.com/kerberos-io/agent/issues/68
---
 machinery/src/routers/websocket/main.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/machinery/src/routers/websocket/main.go b/machinery/src/routers/websocket/main.go
index 562a439..23d7cb7 100644
--- a/machinery/src/routers/websocket/main.go
+++ b/machinery/src/routers/websocket/main.go
@@ -135,7 +135,7 @@ logreader:
 
 		var mat gocv.Mat
 		var encodedImage string
-		if cursor != nil {
+		if cursor != nil && decoder != nil {
 			pkt, err := cursor.ReadPacket()
 			if err == nil {
 				if !pkt.IsKeyFrame {