FreeCalypso > hg > gsm-codec-lib

/*
*****************************************************************************
*
*      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             : cbsearch.h
*      Purpose          : Inovative codebook search (find index and gain)
*
*****************************************************************************
*/
#ifndef cbsearch_h
#define cbsearch_h "$Id $"

/*
*****************************************************************************
*                         INCLUDE FILES
*****************************************************************************
*/
#include "tw_amr.h"
#include "typedef.h"

/*
*****************************************************************************
*                         LOCAL VARIABLES AND TABLES
*****************************************************************************
*/

/*
*****************************************************************************
*                         DEFINITION OF DATA TYPES
*****************************************************************************
*/

/*
*****************************************************************************
*                         PUBLIC PROGRAM CODE
*****************************************************************************
*/
int cbsearch(Word16 x[],     /* i : target vector, Q0                      */
             Word16 h[],     /* i : impulse response of weighted synthesis */
                             /*     filter h[-L_subfr..-1] must be set to  */
                             /*    zero. Q12                               */
             Word16 T0,      /* i : Pitch lag                              */
             Word16 pitch_sharp, /* i : Last quantized pitch gain, Q14     */
             Word16 gain_pit,/* i : Pitch gain, Q14                        */
             Word16 res2[],  /* i : Long term prediction residual, Q0      */
             Word16 code[],  /* o : Innovative codebook, Q13               */
             Word16 y[],     /* o : filtered fixed codebook excitation, Q12 */
             Word16 **anap,  /* o : Signs of the pulses                    */
             enum Mode mode, /* i : coder mode                             */
             Word16 subNr)   /* i : subframe number                        */
;

#endif
author	Mychaela Falconia <falcon@freecalypso.org>
date	Thu, 18 Apr 2024 20:35:02 +0000
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