#ifndef SUBBAND_LAYER_2_H#define SUBBAND_LAYER_2_H// class for layer II subbands in single channel mode:class SubbandLayer2 : public Subband { protected:  uint32 subbandnumber;  uint32 allocation;  uint32 scfsi;  uint32 scalefactor1, scalefactor2, scalefactor3;  bool	 grouping;  uint32 codelength;  uint32 quantizationsteps;  real	 factor;  uint32 groupnumber;  uint32 samplenumber;  real	 samples[3];  real	 c, d;  uint32 get_allocationlength (Header *);  uint32 prepare_sample_reading (Header *, uint32, bool *, uint32 *, real *,				 uint32 *, real *, real *);public:		SubbandLayer2 (uint32 subbandnumber);  void		read_allocation (AudioStream *, Header *, Crc16 *);  virtual void	read_scalefactor_selection (AudioStream *, Crc16 *);  void		read_scalefactor (AudioStream *, Header *);  bool		read_sampledata (AudioStream *);  bool		put_next_sample (e_channels, SynthesisFilter *, SynthesisFilter * = NULL);};// class for layer II subbands in joint stereo mode:class SubbandLayer2IntensityStereo : public SubbandLayer2 { protected:  uint32 channel2_scfsi;  uint32 channel2_scalefactor1, channel2_scalefactor2, channel2_scalefactor3; public:       SubbandLayer2IntensityStereo (uint32 subbandnumber);  void read_allocation (AudioStream *stream, Header *header, Crc16 *crc){    SubbandLayer2::read_allocation (stream, header, crc);  }  void read_scalefactor_selection (AudioStream *, Crc16 *);  void read_scalefactor (AudioStream *, Header *);  bool read_sampledata (AudioStream *stream){    return SubbandLayer2::read_sampledata (stream);  }  bool put_next_sample (e_channels, SynthesisFilter *, SynthesisFilter *);};// class for layer II subbands in stereo mode:class SubbandLayer2Stereo : public SubbandLayer2 { protected:  uint32 channel2_allocation;  uint32 channel2_scfsi;  uint32 channel2_scalefactor1, channel2_scalefactor2, channel2_scalefactor3;  bool	 channel2_grouping;  uint32 channel2_codelength;  uint32 channel2_quantizationsteps;  real	 channel2_factor;  real	 channel2_samples[3];  real	 channel2_c, channel2_d; public:  SubbandLayer2Stereo (uint32 subbandnumber);  void read_allocation (AudioStream *, Header *, Crc16 *);  void read_scalefactor_selection (AudioStream *, Crc16 *);  void read_scalefactor (AudioStream *, Header *);  bool read_sampledata (AudioStream *);  bool put_next_sample (e_channels, SynthesisFilter *, SynthesisFilter *);};#endif