From 0e53da09c7c608b4c38a037820f38b9630ea762f Mon Sep 17 00:00:00 2001
From: Shawn <shawn@ourpad.casa>
Date: Mon, 1 Jun 2026 22:59:00 -0400
Subject: [PATCH] =?UTF-8?q?fix:=20barcode=20scan=20rate=2050ms=E2=86=92300?=
 =?UTF-8?q?ms=20=E2=80=94=20decoder=20was=20thrashing,=20missed=20barcodes?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

delayBetweenScanAttempts was set to 50ms (20 scans/sec) but with
TRY_HARDER enabled and 13 barcode formats configured, the ZXing decoder
couldn't keep up — frames were skipped and barcodes visible in the
viewfinder were never detected. 300ms gives each frame enough processing
time while still feeling real-time.
---
 static/index.html | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/static/index.html b/static/index.html
index d2b0fd8..53653f5 100644
--- a/static/index.html
+++ b/static/index.html
@@ -2851,7 +2851,9 @@
 
     function _barcodeOptions() {
       return {
-        delayBetweenScanAttempts: 50,   // scan every 50ms (was default ~500ms)
+        delayBetweenScanAttempts: 300,  // scan every 300ms (was 50ms — too fast
+                                        // for TRY_HARDER with 13 formats, caused
+                                        // decoder thrashing and missed barcodes)
         delayBetweenScanSuccess: 2000,  // 2s cooldown after a successful scan
       };
     }