?? phi_prep.h
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/*====================================================================*/
/* MPEG-4 Audio (ISO/IEC 14496-3) Copyright Header */
/*====================================================================*/
/*
This software module was originally developed by Rakesh Taori and Andy
Gerrits (Philips Research Laboratories, Eindhoven, The Netherlands) in
the course of development of the MPEG-4 Audio (ISO/IEC 14496-3). This
software module is an implementation of a part of one or more MPEG-4
Audio (ISO/IEC 14496-3) tools as specified by the MPEG-4 Audio
(ISO/IEC 14496-3). ISO/IEC gives users of the MPEG-4 Audio (ISO/IEC
14496-3) free license to this software module or modifications thereof
for use in hardware or software products claiming conformance to the
MPEG-4 Audio (ISO/IEC 14496-3). Those intending to use this software
module in hardware or software products are advised that its use may
infringe existing patents. The original developer of this software
module and his/her company, the subsequent editors and their
companies, and ISO/IEC have no liability for use of this software
module or modifications thereof in an implementation. Copyright is not
released for non MPEG-4 Audio (ISO/IEC 14496-3) conforming products.
CN1 retains full right to use the code for his/her own purpose, assign
or donate the code to a third party and to inhibit third parties from
using the code for non MPEG-4 Audio (ISO/IEC 14496-3) conforming
products. This copyright notice must be included in all copies or
derivative works. Copyright 1996.
*/
/*====================================================================*/
/*======================================================================*/
/* */
/* INCLUDE_FILE: PHI_PREP.H */
/* PACKAGE: WDBxx */
/* COMPONENT: Preprocessing Module */
/* */
/*======================================================================*/
#ifndef _phi_prep_h_
#define _phi_prep_h_
#ifdef __cplusplus
extern "C" {
#endif
/*======================================================================*/
/* Function Prototype: celp_preprocessing */
/*======================================================================*/
void /* Return Value: Void */
celp_preprocessing
(
float InputSignal[], /* In: Input Signal */
float PP_InputSignal[], /* Out: Preprocessed Input Signal */
float *prev_x, /* In/Out: Previous x */
float *prev_y, /* In/Out: Previous y */
long frame_size, /* In: Number of samples in frame */
long sampling_frequency /* In: Sampling Frequency */
);
#ifdef __cplusplus
}
#endif
#endif /* #ifndef _phi_prep_h_ */
/*======================================================================*/
/* H I S T O R Y */
/*======================================================================*/
/* 17-04-96 R. Taori Initial Version */
/* 30-07-96 R. Taori Modified interface to meet the MPEG-4 requirement*/
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