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annotate mgw/dtmf_defs.h @ 171:4f1f3f799295

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doc/Codec-library-depend: article written
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 21 Nov 2022 01:01:39 -0800
parents a6eb2de277f6
children
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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,
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a6eb2de277f6 mgw: massive simplification for continuous RTP stream from BTS
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3 * including DTMF_MAX_FRAMES limit.
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815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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4 */
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815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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6 #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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815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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8 struct dtmf_desc {
815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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9 int digit;
815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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10 float freq_low;
815e4c59162e mgw DTMF: tone definitions and sample array generation
Mychaela Falconia <falcon@freecalypso.org>
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11 float freq_high;
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Mychaela Falconia <falcon@freecalypso.org>
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12 int16_t *samples;
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Mychaela Falconia <falcon@freecalypso.org>
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13 };