Implementation of C-Netz (German mobile telephone system)

src/cnetz/scrambler.h

@@ -0,0 +1,12 @@
+#include "../common/filter.h"
+
+typedef struct scrambler {
+	double			carrier_phaseshift256;	/* carrier phase shift per sample */
+	double			carrier_phase256;	/* current phase of carrier frequency */
+	biquad_low_pass_t	bq;			/* filter to remove carrier frequency */
+} scrambler_t;
+
+void scrambler_init(void);
+void scrambler_setup(scrambler_t *scrambler, int samplerate);
+void scrambler(scrambler_t *scrambler, int16_t *samples, int length);
+