FreeCalypso > hg > themwi-system-sw

annotate mgw/dtmf_defs.h @ 199:e6c7ced3c031

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mgw: accept zero-length RTP payload as BFI Mainline OsmoBTS now has an option (rtp continuous-streaming) that causes it to emit an RTP packet every 20 ms without gaps, sending a BFI marker in the form of zero-length RTP payload when it has nothing else to send. These codec-independent BFI markers don't indicate TAF, but this provision is a good start. Accept this BFI packet format in themwi-mgw.
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 29 Mar 2023 20:23:43 -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 /*
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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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4 */
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6 #define DTMF_MAX_FRAMES 60 /* 1200 ms */
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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 {
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Mychaela Falconia <falcon@freecalypso.org>
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9 int digit;
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Mychaela Falconia <falcon@freecalypso.org>
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10 float freq_low;
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Mychaela Falconia <falcon@freecalypso.org>
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11 float freq_high;
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12 int16_t *samples;
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13 };