diff options
| -rw-r--r-- | src/qmmp/equ/iir_cfs.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/src/qmmp/equ/iir_cfs.c b/src/qmmp/equ/iir_cfs.c index 1f8152e65..3daeae4ff 100644 --- a/src/qmmp/equ/iir_cfs.c +++ b/src/qmmp/equ/iir_cfs.c @@ -83,7 +83,7 @@ static const double band_f031[] = #define GAIN_F1 GAIN_F0 / M_SQRT2 #define SAMPLING_FREQ 44100.0 -#define TETA(f) (2*M_PI*(double)f/bands[n].sfreq) +#define TETA(f) (2*M_PI*(double)f/iir_bands[n].sfreq) #define TWOPOWER(value) (value * value) #define BETA2(tf0, tf) \ @@ -111,7 +111,7 @@ struct { double octave; int band_count; double sfreq; -} bands[] = { +} iir_bands[] = { { iir_cf10_11k_11025, band_f011k, 1.0, 10, 11025.0 }, { iir_cf10_22k_22050, band_f022k, 1.0, 10, 22050.0 }, { iir_cforiginal10_44100, band_original_f010, 1.0, 10, 44100.0 }, @@ -210,13 +210,13 @@ void calc_coeffs() double x0; n = 0; - for (; bands[n].cfs; n++) { - double *freqs = (double *)bands[n].cfs; - for (i=0; i<bands[n].band_count; i++) + for (; iir_bands[n].cfs; n++) { + double *freqs = (double *)iir_bands[n].cfs; + for (i=0; i<iir_bands[n].band_count; i++) { /* Find -3dB frequencies for the center freq */ - find_f1_and_f2(freqs[i], bands[n].octave, &f1, &f2); + find_f1_and_f2(freqs[i], iir_bands[n].octave, &f1, &f2); /* Find Beta */ if ( find_root( BETA2(TETA(freqs[i]), TETA(f1)), @@ -232,9 +232,9 @@ void calc_coeffs() * Now the 2 factor has been distributed in the coefficients */ /* Now store the coefficients */ - bands[n].coeffs[i].beta = 2.0 * x0; - bands[n].coeffs[i].alpha = 2.0 * ALPHA(x0); - bands[n].coeffs[i].gamma = 2.0 * GAMMA(x0, TETA(freqs[i])); + iir_bands[n].coeffs[i].beta = 2.0 * x0; + iir_bands[n].coeffs[i].alpha = 2.0 * ALPHA(x0); + iir_bands[n].coeffs[i].gamma = 2.0 * GAMMA(x0, TETA(freqs[i])); #ifdef DEBUG printf("Freq[%d]: %f. Beta: %.10e Alpha: %.10e Gamma %.10e\n", i, freqs[i], bands[n].coeffs[i].beta, @@ -242,9 +242,9 @@ void calc_coeffs() #endif } else { /* Shouldn't happen */ - bands[n].coeffs[i].beta = 0.; - bands[n].coeffs[i].alpha = 0.; - bands[n].coeffs[i].gamma = 0.; + iir_bands[n].coeffs[i].beta = 0.; + iir_bands[n].coeffs[i].alpha = 0.; + iir_bands[n].coeffs[i].gamma = 0.; printf(" **** Where are the roots?\n"); } }// for i |