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annotate libgsmfrp/silence_frame.c @ 122:b33f2168fdec

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doc/EFR-rationale article written
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 10 Dec 2022 08:51:01 +0000
parents 61cb83bd11ec
children
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6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
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2 * Table 1 in section 6 of 3GPP TS 46.011 specifies a silence frame
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
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3 * in the form of GSM 06.10 parameters; here we implement this exact
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
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4 * silence frame in libgsm encoding, which is also RTP encoding.
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
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5 */
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
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6
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
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7 #include "gsm_fr_preproc.h"
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
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8
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
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9 const gsm_frame gsmfr_preproc_silence_frame = {
6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
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10 0xDA, 0xA7, 0xAA, 0xA5, 0x1A,
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61cb83bd11ec GSM 06.11 silence frame: it's Nc=40 first, then bc=0
Mychaela Falconia <falcon@freecalypso.org>
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11 0x50, 0x20, 0x38, 0xE4, 0x6D, 0xB9, 0x1B,
61cb83bd11ec GSM 06.11 silence frame: it's Nc=40 first, then bc=0
Mychaela Falconia <falcon@freecalypso.org>
parents: 1
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12 0x50, 0x20, 0x38, 0xE4, 0x6D, 0xB9, 0x1B,
61cb83bd11ec GSM 06.11 silence frame: it's Nc=40 first, then bc=0
Mychaela Falconia <falcon@freecalypso.org>
parents: 1
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13 0x50, 0x20, 0x38, 0xE4, 0x6D, 0xB9, 0x1B,
61cb83bd11ec GSM 06.11 silence frame: it's Nc=40 first, then bc=0
Mychaela Falconia <falcon@freecalypso.org>
parents: 1
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14 0x50, 0x20, 0x38, 0xE4, 0x6D, 0xB9, 0x1B,
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6780b23654bd libgsmfrp: starting with the silence frame
Mychaela Falconia <falcon@freecalypso.org>
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15 };