| #ifndef _SYNTHESIS_H_ |
| #define _SYNTHESIS_H_ |
| |
| #include "ChannelizerBase.h" |
| |
| class Synthesis : public ChannelizerBase { |
| public: |
| /** Constructor for synthesis filterbank |
| @param m number of physical channels |
| @param blockLen number of samples per output of each iteration |
| @param hLen number of taps in each constituent filter path |
| */ |
| Synthesis(size_t m, size_t blockLen, size_t hLen = 16); |
| ~Synthesis(); |
| |
| /* Return required input and output buffer lengths */ |
| size_t inputLen() const; |
| size_t outputLen() const; |
| |
| /** Rotate "output commutator" and drive samples through filterbank |
| @param out complex output vector |
| @param oLen number of samples in buffer (must match block length * m) |
| @return false on error and true otherwise |
| */ |
| bool rotate(float *out, size_t oLen); |
| |
| /** Get buffer for an input path |
| @param chan channel number of filterbank |
| @return NULL on error and pointer to buffer otherwise |
| */ |
| float *inputBuffer(size_t chan) const; |
| bool resetBuffer(size_t chan); |
| }; |
| |
| #endif /* _SYNTHESIS_H_ */ |