FreeCalypso > hg > gsm-codec-lib

view libtwamr/d_gain_p.h @ 586:b21ea4ab586d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
libgsmhr1: update for TW-TS-002 version 1.2.0 The component of libgsmhr1 being changed is RTP input functions; the change is accepting FT=1 (invalid SID) frames both with and without payload data bits.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 10 Mar 2025 02:03:31 +0000
parents e18452a4fbac
children
line wrap: on
line source

/*
********************************************************************************
*
*      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