FreeCalypso > hg > themwi-system-sw
comparison mgw/dtmf_defs.h @ 126:815e4c59162e
mgw DTMF: tone definitions and sample array generation
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 01 Oct 2022 17:09:51 -0800 |
parents | |
children | 4b35a5a400f1 |
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125:5081f2bc6f1c | 126:815e4c59162e |
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1 /* | |
2 * This header file holds various internal definitions for DTMF generation, | |
3 * including key tunable settings of min and max DTMF duration. | |
4 */ | |
5 | |
6 #define DTMF_MIN_FRAMES 10 /* 200 ms */ | |
7 #define DTMF_MAX_FRAMES 60 /* 1200 ms */ | |
8 | |
9 struct dtmf_desc { | |
10 int digit; | |
11 float freq_low; | |
12 float freq_high; | |
13 int16_t *samples; | |
14 }; |