diff --git a/HISTORY b/HISTORY
index 2f04de7..7efb36f 100644
--- a/HISTORY
+++ b/HISTORY
@@ -415,7 +415,7 @@ VDR Plugin 'femon' Revision History
 - Updated for vdr-1.7.18.
 - Added scaling for symbols.
 
-2011-xx-xx: Version 1.7.11
+2011-12-04: Version 1.7.11
 
 - Updated for vdr-1.7.22: New API functions for signal strength
   and quality used to provide information for the OSD.
diff --git a/femon.c b/femon.c
index 7553c5f..ad6ec64 100644
--- a/femon.c
+++ b/femon.c
@@ -14,8 +14,8 @@
 #include "femonservice.h"
 #include "femontools.h"
 
-#if defined(APIVERSNUM) && APIVERSNUM < 10719
-#error "VDR-1.7.19 API version or greater is required!"
+#if defined(APIVERSNUM) && APIVERSNUM < 10722
+#error "VDR-1.7.22 API version or greater is required!"
 #endif
 
 static const char VERSION[]       = "1.7.11";
diff --git a/femonosd.c b/femonosd.c
index debff05..932bef3 100644
--- a/femonosd.c
+++ b/femonosd.c
@@ -851,7 +851,7 @@ eOSState cFemonOsd::ProcessKey(eKeys Key)
 {
   eOSState state = cOsdObject::ProcessKey(Key);
   if (state == osUnknown) {
-     switch (Key) {
+     switch (int(Key)) {
        case k0:
             if ((m_Number == 0) && (m_OldNumber != 0)) {
                m_Number = m_OldNumber;
diff --git a/femontools.c b/femontools.c
index 70f7fc2..4d2ee9f 100644
--- a/femontools.c
+++ b/femontools.c
@@ -544,45 +544,6 @@ cString getBitrateKbits(double value)
 
 // --- cFemonBitStream -------------------------------------------------------
 
-int cFemonBitStream::GetBit(void)
-{
-  if (index >= length)
-     return 1;
-  int r = (data[index >> 3] >> (7 - (index & 7))) & 1;
-  ++index;
-  return r;
-}
-
-uint32_t cFemonBitStream::GetBits(int n)
-{
-  uint32_t r = 0;
-  while (n--)
-        r |= GetBit() << n;
-  return r;
-}
-
-void cFemonBitStream::ByteAlign(void)
-{
-  int n = index % 8;
-  if (n > 0)
-     SkipBits(8 - n);
-}
-
-void cFemonBitStream::WordAlign(void)
-{
-  int n = index % 16;
-  if (n > 0)
-     SkipBits(16 - n);
-}
-
-bool cFemonBitStream::SetLength(int Length)
-{
-  if (Length > length)
-     return false;
-  length = Length;
-  return true;
-}
-
 uint32_t cFemonBitStream::GetUeGolomb()
 {
   int n = 0;
diff --git a/femontools.h b/femontools.h
index d063f34..f027938 100644
--- a/femontools.h
+++ b/femontools.h
@@ -71,27 +71,9 @@ cString getVideoBitrate(double value, double stream);
 cString getBitrateMbits(double value);
 cString getBitrateKbits(double value);
 
-class cFemonBitStream {
-private:
-  const uint8_t *data;
-  int length; // in bits
-  int index; // in bits
+class cFemonBitStream : public cBitStream {
 public:
-  cFemonBitStream(const uint8_t *Data, int Length) : data(Data), length(Length), index(0) {}
-  ~cFemonBitStream() {}
-  int GetBit(void);
-  uint32_t GetBits(int n);
-  void ByteAlign(void);
-  void WordAlign(void);
-  bool SetLength(int Length);
-  void SkipBits(int n) { index += n; }
-  void SkipBit(void) { SkipBits(1); }
-  bool IsEOF(void) const { return index >= length; }
-  void Reset(void) { index = 0; }
-  int Length(void) const { return length; }
-  int Index(void) const { return (IsEOF() ? length : index); }
-  const uint8_t *GetData(void) const { return (IsEOF() ? NULL : data + (index / 8)); }
-
+  cFemonBitStream(const uint8_t *Data, const int Length) : cBitStream(Data, Length) {}
   uint32_t       GetUeGolomb();
   int32_t        GetSeGolomb();
   void           SkipGolomb();