FreeCalypso > hg > gsm-codec-lib
diff libtwamr/qua_gain.h @ 377:b02e043dcba0
libtwamr: integrate qua_gain.c
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Mon, 06 May 2024 04:24:17 +0000 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtwamr/qua_gain.h Mon May 06 04:24:17 2024 +0000 @@ -0,0 +1,56 @@ +/* +******************************************************************************** +* +* 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 : qua_gain.h +* Purpose : Quantization of pitch and codebook gains. +* +******************************************************************************** +*/ +#ifndef qua_gain_h +#define qua_gain_h "$Id $" + +/* +******************************************************************************** +* INCLUDE FILES +******************************************************************************** +*/ +#include "tw_amr.h" +#include "typedef.h" + +/* +******************************************************************************** +* DECLARATION OF PROTOTYPES +******************************************************************************** +*/ +/************************************************************************* + * + * FUNCTION: Qua_gain() + * + * PURPOSE: Quantization of pitch and codebook gains. + * (using predicted codebook gain) + * + *************************************************************************/ +Word16 +Qua_gain( /* o : index of quantization. */ + enum Mode mode, /* i : AMR mode */ + Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */ + Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */ + Word16 frac_coeff[], /* i : energy coeff. (5), fraction part, Q15 */ + Word16 exp_coeff[], /* i : energy coeff. (5), exponent part, Q0 */ + /* (frac_coeff and exp_coeff computed in */ + /* calc_filt_energies()) */ + Word16 gp_limit, /* i : pitch gain limit */ + Word16 *gain_pit, /* o : Pitch gain, Q14 */ + Word16 *gain_cod, /* o : Code gain, Q1 */ + Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */ + /* (for MR122 MA predictor update) */ + Word16 *qua_ener /* o : quantized energy error, Q10 */ + /* (for other MA predictor update) */ +); +#endif