From 1305b8be7a07f8f6215cd5c3e8abecb41bf222b6 Mon Sep 17 00:00:00 2001
From: Jens Ahrensfeld <jens@jayfield.org>
Date: Sun, 10 Feb 2019 17:24:17 +0000
Subject: [PATCH] - add gap sync

git-svn-id: http://moon:8086/svn/software/trunk/projects/GnuRadio@425 b431acfa-c32f-4a4a-93f1-934dc6c82436
---
 gr-jay/lib/bit_packer_impl.cc | 18 ++++++++++++++++++
 gr-jay/lib/bit_packer_impl.h  |  1 +
 2 files changed, 19 insertions(+)

diff --git a/gr-jay/lib/bit_packer_impl.cc b/gr-jay/lib/bit_packer_impl.cc
index 479d1ad..5cee8a0 100644
--- a/gr-jay/lib/bit_packer_impl.cc
+++ b/gr-jay/lib/bit_packer_impl.cc
@@ -47,6 +47,7 @@ bit_packer_impl::bit_packer_impl(int numBitsIn, int numBitsOut, int endianess)
 , m_numBitsIn(numBitsIn)
 , m_numBitsOut(numBitsOut)
 , m_endianess(endianess)
+, m_gapCount(0)
 {}
 
 /*
@@ -81,9 +82,26 @@ bit_packer_impl::general_work (int noutput_items,
 		{
 			m_inputCounter = 0;
 			m_outputCounter = 0;
+			m_output = 0;
 		}
 		else
 		{
+			if (in[i] == 1)
+			{
+				m_gapCount++;
+			}
+			else
+			{
+				m_gapCount = 0;
+			}
+			
+			if (m_gapCount >= 16)
+			{
+				m_inputCounter = 0;
+				m_outputCounter = 0;
+				m_output = 0;
+				continue;
+			}
 			if (m_endianess == 0)
 			{
 				if(m_inputCounter == m_numBitsIn)
diff --git a/gr-jay/lib/bit_packer_impl.h b/gr-jay/lib/bit_packer_impl.h
index 23abc3e..aa76866 100644
--- a/gr-jay/lib/bit_packer_impl.h
+++ b/gr-jay/lib/bit_packer_impl.h
@@ -36,6 +36,7 @@ namespace gr {
 	int m_numBitsOut;
 	int m_endianess;
 	int m_output;
+	int m_gapCount;
 	
      public:
       bit_packer_impl(int numBitsIn, int numBitsOut, int endianess);