FreeCalypso > hg > gsm-codec-lib
view libtwamr/pre_proc.h @ 449:2af2b5c12268
Library-versions: libtwamr is officially version 1.0.0
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 10 May 2024 01:43:05 +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