RDS: fix flags decoding

Change d0...d3 order to d3...d0 to match the standard.
Change decoding of Mono/Stereo flag to match the standard.
Change decoding of stPTY flag to match the standard.

src/dsp/rds/parser_impl.cc

@@ -103,16 +103,16 @@ void parser_impl::decode_type0(unsigned int *group, bool B) {
  /* see page 41, table 9 of the standard */
  switch (segment_address) {
  case 0:
- mono_stereo=decoder_control_bit;
+ static_pty=!decoder_control_bit;
  break;
  case 1:
- artificial_head=decoder_control_bit;
+ compressed=decoder_control_bit;
  break;
  case 2:
- compressed=decoder_control_bit;
+ artificial_head=decoder_control_bit;
  break;
  case 3:
- static_pty=decoder_control_bit;
+ mono_stereo=decoder_control_bit;
  break;
  default:
  break;

src/qtgui/dockrds.cpp

@@ -70,8 +70,8 @@ void DockRDS::updateRDS(QString text, int type)
  if (str.at(1) == '1') out.append("TA ");
  if (str.at(2) == '0') out.append("Speech ");
  if (str.at(2) == '1') out.append("Music ");
- if (str.at(3) == '0') out.append("Stereo ");
- if (str.at(3) == '1') out.append("Mono ");
+ if (str.at(3) == '1') out.append("Stereo ");
+ if (str.at(3) == '0') out.append("Mono ");
  if (str.at(4) == '1') out.append("AH ");
  if (str.at(5) == '1') out.append("CMP ");
  if (str.at(6) == '1') out.append("stPTY ");