From e6a90c061e59ba3efd4267898eb352140853cf66 Mon Sep 17 00:00:00 2001
From: Gavin MacGregor <gkthemac@gmail.com>
Date: Tue, 4 Nov 2025 21:59:30 +0000
Subject: [PATCH] Extend packet coding function to take packet numbers

---
 src/qteletextdecoder/pagebase.cpp | 8 ++++++++
 src/qteletextdecoder/pagebase.h   | 3 ++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/qteletextdecoder/pagebase.cpp b/src/qteletextdecoder/pagebase.cpp
index a6a4738..24bc6a3 100644
--- a/src/qteletextdecoder/pagebase.cpp
+++ b/src/qteletextdecoder/pagebase.cpp
@@ -37,6 +37,14 @@ PageBase::PacketCodingEnum PageBase::packetCoding() const
 	return Coding7bit;
 }
 
+PageBase::PacketCodingEnum PageBase::packetCoding(int y, int d) const
+{
+	if (y == 27 && d < 4)
+		return Coding4bit;
+	else
+		return Coding18bit;
+}
+
 bool PageBase::isEmpty() const
 {
 	for (int y=0; y<26; y++)
diff --git a/src/qteletextdecoder/pagebase.h b/src/qteletextdecoder/pagebase.h
index 17366e3..e6c50a9 100644
--- a/src/qteletextdecoder/pagebase.h
+++ b/src/qteletextdecoder/pagebase.h
@@ -35,6 +35,7 @@ public:
 
 	virtual PageFunctionEnum pageFunction() const;
 	virtual PacketCodingEnum packetCoding() const;
+	virtual PacketCodingEnum packetCoding(int y, int d) const;
 
 	virtual bool isEmpty() const;
 
@@ -43,7 +44,7 @@ public:
 	virtual bool setPacket(int y, QByteArray pkt);
 	virtual bool setPacket(int y, int d, QByteArray pkt);
 	virtual bool packetExists(int y) const;
-	virtual bool packetExists(int y, int d) const ;
+	virtual bool packetExists(int y, int d) const;
 	virtual bool clearPacket(int y);
 	virtual bool clearPacket(int y, int d);
 	virtual void clearAllPackets();