FreeCalypso > hg > gsm-codec-lib
comparison libgsmefr/dtx_defs.h @ 119:c1d53064b410
libgsmefr: split dtx.c into dtx_{common,dec,enc}.c
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sat, 10 Dec 2022 02:25:20 +0000 |
| parents | libgsmefr/dtx.c@58b64224d4ac |
| children |
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| 118:cc08498ed21b | 119:c1d53064b410 |
|---|---|
| 1 /* | |
| 2 * The definitions contained in this header file originally lived in | |
| 3 * dtx.c; they are being factored out into a new header file as part of | |
| 4 * splitting of dtx.c code into common, encoder-only and decoder-only | |
| 5 * parts. | |
| 6 */ | |
| 7 | |
| 8 /* Inverse values of DTX hangover period and DTX hangover period + 1 */ | |
| 9 | |
| 10 #define INV_DTX_HANGOVER (0x7fff / DTX_HANGOVER) | |
| 11 #define INV_DTX_HANGOVER_P1 (0x7fff / (DTX_HANGOVER+1)) | |
| 12 | |
| 13 #define NB_PULSE 10 /* Number of pulses in fixed codebook excitation */ | |
| 14 | |
| 15 /* Constant DTX_ELAPSED_THRESHOLD is used as threshold for allowing | |
| 16 SID frame updating without hangover period in case when elapsed | |
| 17 time measured from previous SID update is below 24 */ | |
| 18 | |
| 19 #define DTX_ELAPSED_THRESHOLD (24 + DTX_HANGOVER - 1) |