FreeCalypso > hg > gsm-codec-lib
view libtwamr/post_pro.h @ 480:332397bc80aa
doc/AMR-library-API: document public const data items
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sun, 19 May 2024 23:18:17 +0000 |
parents | a0f914a28371 |
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 : post_pro.h * Purpose : Postprocessing of output speech. * * - 2nd order high pass filtering with cut * off frequency at 60 Hz. * - Multiplication of output by two. * ******************************************************************************** */ #ifndef post_pro_h #define post_pro_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; } Post_ProcessState; /* ******************************************************************************** * DECLARATION OF PROTOTYPES ******************************************************************************** */ void Post_Process_reset (Post_ProcessState *st); /* reset of Post processing state (i.e. set state memory to zero) returns 0 on success */ int Post_Process ( Post_ProcessState *st, /* i/o : post process state */ Word16 signal[], /* i/o : signal */ Word16 lg /* i : lenght of signal */ ); #endif