FreeCalypso > hg > themwi-system-sw

annotate mgw/dtmf_defs.h @ 150:529906fddcfa

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mgw DTMF timing fix in the corner case of no speech arriving between the end of one DTMF and the start of next
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 11 Oct 2022 14:10:29 -0800
parents 815e4c59162e
children 4b35a5a400f1
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815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
815e4c59162e mgw DTMF: tone definitions and sample array generation
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2 * This header file holds various internal definitions for DTMF generation,
815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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3 * including key tunable settings of min and max DTMF duration.
815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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4 */
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5
815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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6 #define DTMF_MIN_FRAMES 10 /* 200 ms */
815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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7 #define DTMF_MAX_FRAMES 60 /* 1200 ms */
815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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8
815e4c59162e mgw DTMF: tone definitions and sample array generation
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9 struct dtmf_desc {
815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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10 int digit;
815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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11 float freq_low;
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Mychaela Falconia <falcon@freecalypso.org>
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12 float freq_high;
815e4c59162e mgw DTMF: tone definitions and sample array generation
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13 int16_t *samples;
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14 };