diff options
Diffstat (limited to 'src/libdtmf/dtmf_decode.h')
| -rw-r--r-- | src/libdtmf/dtmf_decode.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/libdtmf/dtmf_decode.h b/src/libdtmf/dtmf_decode.h index 7c5780f..ea2ff8e 100644 --- a/src/libdtmf/dtmf_decode.h +++ b/src/libdtmf/dtmf_decode.h @@ -1,6 +1,8 @@ #include "../libfm/fm.h" -typedef struct ftmf_meas { +#define DTMF_FREQ_MARGIN_PERCENT_DEFAULT 3 /* 1.8 .. 3.5 % */ + +typedef struct dtmf_meas { double frequency_low; double frequency_high; double amplitude_low; @@ -28,8 +30,9 @@ typedef struct dtmf_dec { dtmf_meas_t meas; /* measurements */ } dtmf_dec_t; -int dtmf_decode_init(dtmf_dec_t *dtmf, void *priv, void (*recv_digit)(void *priv, char digit, dtmf_meas_t *meas), int samplerate, double max_amplitude, double min_amplitude); +int dtmf_decode_init(dtmf_dec_t *dtmf, void *priv, void (*recv_digit)(void *priv, char digit, dtmf_meas_t *meas), int samplerate, double max_amplitude, double min_amplitude, double freq_margin); void dtmf_decode_exit(dtmf_dec_t *dtmf); +void dtmf_decode_reset(dtmf_dec_t *dtmf); void dtmf_decode(dtmf_dec_t *dtmf, sample_t *samples, int length); void dtmf_decode_filter(dtmf_dec_t *dtmf, sample_t *samples, int length, sample_t *frequency_low, sample_t *frequency_high, sample_t *amplitude_low, sample_t *amplitude_high); |