FreeCalypso > hg > gsm-codec-lib
view libtwamr/qgain795.h @ 418:93d6c6960a46
libtwamr: integrate cod_amr.c
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 07 May 2024 03:50:25 +0000 |
parents | 2aa98051d445 |
children |
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/* ******************************************************************************** * * 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 : qgain795.h * Purpose : (pre-) quantization of pitch gain for MR795 * ******************************************************************************** */ #ifndef qgain795_h #define qgain795_h "$Id $" /* ******************************************************************************** * INCLUDE FILES ******************************************************************************** */ #include "typedef.h" #include "g_adapt.h" /* ******************************************************************************** * DECLARATION OF PROTOTYPES ******************************************************************************** */ /************************************************************************* * * FUNCTION: MR795_gain_quant * * PURPOSE: pitch and codebook quantization for MR795 * *************************************************************************/ void MR795_gain_quant( GainAdaptState *adapt_st, /* i/o: gain adapter state structure */ Word16 res[], /* i : LP residual, Q0 */ Word16 exc[], /* i : LTP excitation (unfiltered), Q0 */ Word16 code[], /* i : CB innovation (unfiltered), Q13 */ Word16 frac_coeff[], /* i : coefficients (5), Q15 */ Word16 exp_coeff[], /* i : energy coefficients (5), Q0 */ /* coefficients from calc_filt_ener() */ Word16 exp_code_en, /* i : innovation energy (exponent), Q0 */ Word16 frac_code_en, /* i : innovation energy (fraction), Q15 */ Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */ Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */ Word16 L_subfr, /* i : Subframe length */ Word16 cod_gain_frac, /* i : opt. codebook gain (fraction),Q15 */ Word16 cod_gain_exp, /* i : opt. codebook gain (exponent), Q0 */ Word16 gp_limit, /* i : pitch gain limit */ Word16 *gain_pit, /* i/o: Pitch gain (unquant/quant), 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) */ Word16 **anap /* o : Index of quantization */ /* (first gain pitch, then code pitch)*/ ); #endif