diff options
Diffstat (limited to 'main/dsp.c')
| -rw-r--r-- | main/dsp.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/main/dsp.c b/main/dsp.c index 6c0b013e4..ab7cacf1a 100644 --- a/main/dsp.c +++ b/main/dsp.c @@ -283,24 +283,17 @@ typedef struct } td; } digit_detect_state_t; -static float dtmf_row[] = -{ +static const float dtmf_row[] = { 697.0, 770.0, 852.0, 941.0 }; -static float dtmf_col[] = -{ +static const float dtmf_col[] = { 1209.0, 1336.0, 1477.0, 1633.0 }; - -static float mf_tones[] = -{ +static const float mf_tones[] = { 700.0, 900.0, 1100.0, 1300.0, 1500.0, 1700.0 }; - -static char dtmf_positions[] = "123A" "456B" "789C" "*0#D"; - -static char bell_mf_positions[] = "1247C-358A--69*---0B----#"; - +static const char dtmf_positions[] = "123A" "456B" "789C" "*0#D"; +static const char bell_mf_positions[] = "1247C-358A--69*---0B----#"; static int thresholds[THRESHOLD_MAX]; static inline void goertzel_sample(goertzel_state_t *s, short sample) |