1 files changed, 34 insertions, 0 deletions
diff --git a/src/ss5/mf.h b/src/ss5/mf.h
new file mode 100644
index 0000000..ca7d304
--- /dev/null
+++ b/src/ss5/mf.h
@@ -0,0 +1,34 @@
+
+#include "../libfilter/iir_filter.h"
+
+struct mf_mod_tone {
+	double rot;
+	double phase;
+	double amplitude;
+};
+
+typedef struct mf_mod {
+	int tones;
+	struct mf_mod_tone tone[0];
+} mf_mod_t;
+
+struct mf_demod_tone {
+	double rot;
+	double phase;
+	iir_filter_t lp[2];
+};
+
+typedef struct mf_demod {
+	int tones;
+	struct mf_demod_tone tone[0];
+} mf_demod_t;
+
+int mf_init(int _fast_math);
+void mf_exit(void);
+mf_mod_t *mf_mod_init(double samplerate, int tones, double *freq, double *amplitude);
+void mf_mod_exit(mf_mod_t *mod);
+void mf_mod(mf_mod_t *mod, uint32_t *mask, sample_t *samples, int length);
+mf_demod_t *mf_demod_init(double samplerate, int tones, double *freq, double *width);
+void mf_demod_exit(mf_demod_t *demod);
+void mf_demod(mf_demod_t *demod, sample_t *samples, int length, sample_t **levels_squared);
+