FreeCalypso > hg > gsm-codec-lib
diff libtwamr/d_gain_p.h @ 340:e18452a4fbac
libtwamr: integrate d_gain_p.c
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 18 Apr 2024 23:45:25 +0000 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtwamr/d_gain_p.h Thu Apr 18 23:45:25 2024 +0000 @@ -0,0 +1,43 @@ +/* +******************************************************************************** +* +* GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001 +* R99 Version 3.3.0 +* REL-4 Version 4.1.0 +* +******************************************************************************** +* +* File : d_gain_p.h +* Purpose : Decodes the pitch gain using the received index. +* +******************************************************************************** +*/ +#ifndef d_gain_p_h +#define d_gain_p_h "$Id $" + +/* +******************************************************************************** +* INCLUDE FILES +******************************************************************************** +*/ +#include "tw_amr.h" +#include "typedef.h" + +/* +************************************************************************** +* +* Function : d_gain_pitch +* Purpose : Decodes the pitch gain using the received index. +* Description : In case of no frame erasure, the gain is obtained +* from the quantization table at the given index; +* otherwise, a downscaled past gain is used. +* Returns : Quantized pitch gain +* +************************************************************************** +*/ +Word16 d_gain_pitch ( /* return value: gain (Q14) */ + enum Mode mode, /* i : AMR mode */ + Word16 index /* i : index of quantization */ +); + +#endif