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view libtwamr/pre_proc.h @ 602:72cdae602d6e

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libgsmhr1/dec_func.c: rm unused static functions In the original code, sp_dec.c held two kinds of functions: those needed only as part of the decoder, and those used by both decoder and encoder engines. In this library, we have moved the latter class of functions to dec_func.c module. Almost all static functions from the original sp_dec.c, with the exception of aToRc(), are needed only on sp_dec.c side of the new divide - remove them from dec_func.c, where they became dead code.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 04 Dec 2025 18:58:22 +0000
parents 9b699f30e6f3
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             : pre_proc.h
*      Purpose          : Preprocessing of input speech.
*
********************************************************************************
*/
#ifndef pre_proc_h
#define pre_proc_h "$Id $"
 
/*
********************************************************************************
*                         INCLUDE FILES
********************************************************************************
*/
#include "typedef.h"
 
/*
********************************************************************************
*                         LOCAL VARIABLES AND TABLES
********************************************************************************
*/
 
/*
********************************************************************************
*                         DEFINITION OF DATA TYPES
********************************************************************************
*/
typedef struct {
  Word16 y2_hi;
  Word16 y2_lo;
  Word16 y1_hi;
  Word16 y1_lo;
  Word16 x0;
  Word16 x1;
} Pre_ProcessState;
 
/*
********************************************************************************
*                         DECLARATION OF PROTOTYPES
********************************************************************************
*/
 
void Pre_Process_reset (Pre_ProcessState *st);
/* reset of pre processing state (i.e. set state memory to zero)
   returns 0 on success
 */

int Pre_Process (
    Pre_ProcessState *st,
    Word16 signal[],   /* Input/output signal                               */
    Word16 lg          /* Lenght of signal                                  */
);

#endif