113 static void biquad_bandpass(struct biquad *bq, double frequency, double Q)  in biquad_bandpass()  argument
116 	frequency = max(0.0, frequency);  in biquad_bandpass()
121 	if (frequency > 0 && frequency < 1) {  in biquad_bandpass()
122 		double w0 = M_PI * frequency;  in biquad_bandpass()
153 static void biquad_lowshelf(struct biquad *bq, double frequency, double db_gain)  in biquad_lowshelf()  argument
156 	frequency = max(0.0, min(frequency, 1.0));  in biquad_lowshelf()
160 	if (frequency == 1) {  in biquad_lowshelf()
163 	} else if (frequency > 0) {  in biquad_lowshelf()
164 		double w0 = M_PI * frequency;  in biquad_lowshelf()
187 static void biquad_highshelf(struct biquad *bq, double frequency,  in biquad_highshelf()  argument
191 	frequency = max(0.0, min(frequency, 1.0));  in biquad_highshelf()
195 	if (frequency == 1) {  in biquad_highshelf()
198 	} else if (frequency > 0) {  in biquad_highshelf()
199 		double w0 = M_PI * frequency;  in biquad_highshelf()
222 static void biquad_peaking(struct biquad *bq, double frequency, double Q,  in biquad_peaking()  argument
226 	frequency = max(0.0, min(frequency, 1.0));  in biquad_peaking()
233 	if (frequency > 0 && frequency < 1) {  in biquad_peaking()
235 			double w0 = M_PI * frequency;  in biquad_peaking()
260 static void biquad_notch(struct biquad *bq, double frequency, double Q)  in biquad_notch()  argument
263 	frequency = max(0.0, min(frequency, 1.0));  in biquad_notch()
268 	if (frequency > 0 && frequency < 1) {  in biquad_notch()
270 			double w0 = M_PI * frequency;  in biquad_notch()
295 static void biquad_allpass(struct biquad *bq, double frequency, double Q)  in biquad_allpass()  argument
298 	frequency = max(0.0, min(frequency, 1.0));  in biquad_allpass()
303 	if (frequency > 0 && frequency < 1) {  in biquad_allpass()
305 			double w0 = M_PI * frequency;  in biquad_allpass()