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Use even/odd FIR filter based half band decimators for the device decimators

This commit is contained in:
f4exb 2016-11-05 21:52:13 +01:00
parent f2a50c0c0f
commit 3410d289d1
1 changed files with 13 additions and 0 deletions
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13
sdrbase/dsp/decimators.h
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@ -18,7 +18,11 @@
#define INCLUDE_GPL_DSP_DECIMATORS_H_
#include "dsp/dsptypes.h"
#ifdef USE_SIMD
#include "dsp/inthalfbandfiltereo1.h"
#else
#include "dsp/inthalfbandfilterdb.h"
#endif
#define DECIMATORS_HB_FILTER_ORDER 48
@ -120,12 +124,21 @@ public:
void decimate64_cen(SampleVector::iterator* it, const T* buf, qint32 len);
private:
#ifdef USE_SIMD
IntHalfbandFilterEO1<DECIMATORS_HB_FILTER_ORDER> m_decimator2; // 1st stages
IntHalfbandFilterEO1<DECIMATORS_HB_FILTER_ORDER> m_decimator4; // 2nd stages
IntHalfbandFilterEO1<DECIMATORS_HB_FILTER_ORDER> m_decimator8; // 3rd stages
IntHalfbandFilterEO1<DECIMATORS_HB_FILTER_ORDER> m_decimator16; // 4th stages
IntHalfbandFilterEO1<DECIMATORS_HB_FILTER_ORDER> m_decimator32; // 5th stages
IntHalfbandFilterEO1<DECIMATORS_HB_FILTER_ORDER> m_decimator64; // 6th stages
#else
IntHalfbandFilterDB<DECIMATORS_HB_FILTER_ORDER> m_decimator2; // 1st stages
IntHalfbandFilterDB<DECIMATORS_HB_FILTER_ORDER> m_decimator4; // 2nd stages
IntHalfbandFilterDB<DECIMATORS_HB_FILTER_ORDER> m_decimator8; // 3rd stages
IntHalfbandFilterDB<DECIMATORS_HB_FILTER_ORDER> m_decimator16; // 4th stages
IntHalfbandFilterDB<DECIMATORS_HB_FILTER_ORDER> m_decimator32; // 5th stages
IntHalfbandFilterDB<DECIMATORS_HB_FILTER_ORDER> m_decimator64; // 6th stages
#endif
};
template<typename T, uint SdrBits, uint InputBits>