85 lines
3.7 KiB
C
85 lines
3.7 KiB
C
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struct quisk_cFilter {
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double * dCoefs; // filter coefficients
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complex double * cpxCoefs; // make the complex coefficients from dCoefs
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int nBuf; // dimension of cBuf
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int nTaps; // dimension of dSamples, cSamples, dCoefs and cpxCoefs
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int decim_index; // used to count samples for decimation
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complex double * cSamples; // storage for old samples
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complex double * ptcSamp; // next available position in cSamples
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complex double * cBuf; // auxillary buffer for interpolation
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} ;
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struct quisk_dFilter {
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double * dCoefs; // filter coefficients
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complex double * cpxCoefs; // make the complex coefficients from dCoefs
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int nBuf; // dimension of dBuf
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int nTaps; // dimension of dSamples, cSamples, dCoefs and cpxCoefs
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int decim_index; // used to count samples for decimation
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double * dSamples; // storage for old samples
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double * ptdSamp; // next available position in dSamples
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double * dBuf; // auxillary buffer for interpolation
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} ;
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struct quisk_cHB45Filter { // Complex half band decimate by 2 filter with 45 coefficients
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complex double * cBuf; // auxillary buffer for interpolation
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int nBuf; // dimension of cBuf
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int toggle;
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complex double samples[22];
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complex double center[11];
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} ;
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struct quisk_dHB45Filter { // Real half band decimate by 2 filter with 45 coefficients
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double * dBuf; // auxillary buffer for interpolation
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int nBuf; // dimension of dBuf
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int toggle;
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double samples[22];
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double center[11];
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} ;
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void quisk_filt_cInit(struct quisk_cFilter *, double *, int);
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void quisk_filt_dInit(struct quisk_dFilter *, double *, int);
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void quisk_filt_tune(struct quisk_dFilter *, double, int);
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complex double quisk_dC_out(double, struct quisk_dFilter *);
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double quisk_dD_out(double, struct quisk_dFilter *);
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int quisk_cInterpolate(complex double *, int, struct quisk_cFilter *, int);
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int quisk_dInterpolate(double *, int, struct quisk_dFilter *, int);
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int quisk_cDecimate(complex double *, int, struct quisk_cFilter *, int);
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int quisk_cCDecimate(complex double *, int, struct quisk_cFilter *, int);
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int quisk_dDecimate(double *, int, struct quisk_dFilter *, int);
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int quisk_cInterpDecim(complex double *, int, struct quisk_cFilter *, int, int);
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int quisk_cDecim2HB45(complex double *, int, struct quisk_cHB45Filter *);
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int quisk_dInterp2HB45(double *, int, struct quisk_dHB45Filter *);
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int quisk_cInterp2HB45(complex double *, int, struct quisk_cHB45Filter *);
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int quisk_dFilter(double *, int, struct quisk_dFilter *);
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int quisk_cFilter(complex double *, int, struct quisk_cFilter *);
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extern double quiskMicFilt48Coefs[325];
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extern double quiskMic5Filt48Coefs[424];
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extern double quiskMicFilt8Coefs[93];
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extern double quiskLpFilt48Coefs[186];
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extern double quiskFilt12_19Coefs[64];
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extern double quiskFilt185D3Coefs[189];
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extern double quiskFilt133D2Coefs[136];
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extern double quiskFilt167D3Coefs[174];
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extern double quiskFilt111D2Coefs[114];
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extern double quiskFilt53D1Coefs[55];
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extern double quiskFilt53D2Coefs[93];
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extern double quiskFilt144D3Coefs[147];
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extern double quiskFilt240D5Coefs[115];
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extern double quiskFilt240D5CoefsSharp[245];
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extern double quiskFilt48dec24Coefs[98];
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extern double quiskAudio24p6Coefs[36];
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extern double quiskAudio48p6Coefs[71];
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extern double quiskAudio96Coefs[11];
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extern double quiskAudio24p4Coefs[50];
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extern double quiskAudioFmHpCoefs[309];
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extern double quiskAudio24p3Coefs[100];
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extern double quiskFiltTx8kAudioB[168];
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extern double quiskFilt16dec8Coefs[62];
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extern double quiskFilt120s03[480];
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extern double quiskFiltI3D25Coefs[825];
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extern double quiskDgtFilt48Coefs[520];
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extern double quiskFilt300D5Coefs[125];
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extern double quiskFilt300D6Coefs[248];
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extern double quiskFilt240D4Coefs[100];
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