Make the YSF demodulator stiffer when locked.

YSFRX.h

@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2015 by Jonathan Naylor G4KLX
+ *   Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -38,6 +38,7 @@ public:
 private:
   uint32_t    m_pll;
   bool        m_prev;
+  uint32_t    m_inc;
   YSFRX_STATE m_state;
   uint32_t    m_symbolBuffer;
   uint64_t    m_bitBuffer;
@@ -64,6 +65,7 @@ private:
   uint32_t getSyndrome23127(uint32_t pattern) const;
   uint32_t golay24128(const uint8_t* bytes) const;
   bool checksum(const uint8_t* fich) const;
+  void locked(bool lock);
 };
 
 #endif