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annotate libgsmhr1/twts002_out.c @ 493:dc7249923b3a

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libgsmhr1: implement TW-TS-002 output
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 17 Jun 2024 23:00:57 +0000
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493
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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2 * The function implemented in this module converts the output of HRv1
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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3 * speech encoder into an RTP payload per TW-TS-002, which in this
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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4 * particular case is also a valid RFC 5993 payload.
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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5 */
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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6
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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7 #include <stdint.h>
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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8 #include "tw_gsmhr.h"
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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9
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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10 void gsmhr_encoder_twts002_out(const int16_t *params, uint8_t *payload)
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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11 {
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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12 payload[0] = params[19] ? 0x00 : 0x20;
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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13 gsmhr_pack_ts101318(params, payload + 1);
dc7249923b3a libgsmhr1: implement TW-TS-002 output
Mychaela Falconia <falcon@freecalypso.org>
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14 }