From 07f107981d282baa084c28626966b1515e1fb21d Mon Sep 17 00:00:00 2001
From: BBBits <bazza@bbbits.com>
Date: Mon, 7 Dec 2020 18:18:29 +1300
Subject: [PATCH] IR rx Igore min bits if unknown 1st draft

Code should be in IRrecv.cpp
---
 tasmota/settings.h                |  6 +++---
 tasmota/xdrv_05_irremote.ino      | 12 +++++++++---
 tasmota/xdrv_05_irremote_full.ino |  8 ++++++++
 3 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/tasmota/settings.h b/tasmota/settings.h
index 02dd5cba3..8f8d6e9d4 100644
--- a/tasmota/settings.h
+++ b/tasmota/settings.h
@@ -142,9 +142,9 @@ typedef union {                            // Restricted by MISRA-C Rule 18.4 bu
     uint32_t mqtt_switches : 1;            // bit 0 (v9.0.0.3)   - SetOption114 - (Switch) Detach Switches from relays and enable MQTT action state for all the SwitchModes (1)
     uint32_t mi32_enable : 1;              // bit 1 (v9.1.0.1)   - SetOption115 - (ESP32 BLE) Enable ESP32 MI32 BLE (1)
     uint32_t zb_disable_autoquery : 1;     // bit 2 (v9.1.0.1)   - SetOption116 - (Zigbee) Disable auto-query of zigbee lights and devices (1)
-    uint32_t spare03 : 1;                  // bit 3
-    uint32_t spare04 : 1;                  // bit 4
-    uint32_t spare05 : 1;                  // bit 5
+    uint32_t ir_rx_min_unknown_bits_8 : 1; // bit 3 SetOption117
+    uint32_t ir_rx_min_unknown_bits_16 : 1;// bit 4 SetOption118
+    uint32_t ir_rx_min_unknown_bits_32 : 1;// bit 5 SetOption119
     uint32_t spare06 : 1;                  // bit 6
     uint32_t spare07 : 1;                  // bit 7
     uint32_t spare08 : 1;                  // bit 8
diff --git a/tasmota/xdrv_05_irremote.ino b/tasmota/xdrv_05_irremote.ino
index cd401d7c0..6c7e934b5 100644
--- a/tasmota/xdrv_05_irremote.ino
+++ b/tasmota/xdrv_05_irremote.ino
@@ -19,7 +19,7 @@
 
 /*
 Below is the Pyhton3 code to decompress IR comact format.
-
+Resolve this  {"Protocol":"UNKNOWN","Bits":4,"Hash":"0xC1E490FF"}}
 ======================================================================
 import re
 
@@ -170,7 +170,14 @@ void IrReceiveCheck(void)
 
     iridx = results.decode_type;
     if ((iridx < 0) || (iridx > MAX_STANDARD_IR)) { iridx = 0; }  // UNKNOWN
-
+    uint8_t min_bits = 0;
+    if(Settings.flag5.ir_rx_min_unknown_bits_8) { min_bits += 8; }
+    if(Settings.flag5.ir_rx_min_unknown_bits_16) { min_bits += 16; }
+    if(Settings.flag5.ir_rx_min_unknown_bits_32) { min_bits += 32; }
+    if (results.bits < min_bits){
+      irrecv->resume();
+      return;
+    }
     if (iridx) {
       if (results.bits > 64) {
         // This emulates IRutils resultToHexidecimal and may needs a larger IR_RCV_BUFFER_SIZE
@@ -247,7 +254,6 @@ void IrReceiveCheck(void)
       }
 #endif  // USE_DOMOTICZ
     }
-
     irrecv->resume();
   }
 }
diff --git a/tasmota/xdrv_05_irremote_full.ino b/tasmota/xdrv_05_irremote_full.ino
index ce75d09db..bf1d8c790 100644
--- a/tasmota/xdrv_05_irremote_full.ino
+++ b/tasmota/xdrv_05_irremote_full.ino
@@ -287,6 +287,14 @@ void IrReceiveCheck(void)
   decode_results results;
 
   if (irrecv->decode(&results)) {
+    uint8_t min_bits = 0;
+    if(Settings.flag5.ir_rx_min_unknown_bits_8) { min_bits += 8; }
+    if(Settings.flag5.ir_rx_min_unknown_bits_16) { min_bits += 16; }
+    if(Settings.flag5.ir_rx_min_unknown_bits_32) { min_bits += 32; }
+    if (results.bits < min_bits){
+      irrecv->resume();
+      return;
+    }
     uint32_t now = millis();
 
 //    if ((now - ir_lasttime > IR_TIME_AVOID_DUPLICATE) && (UNKNOWN != results.decode_type) && (results.bits > 0)) {