/*====================================================================*//*         MPEG-4 Audio (ISO/IEC 14496-3) Copyright Header            *//*====================================================================*//*This software module was originally developed by Rakesh Taori and AndyGerrits (Philips Research Laboratories, Eindhoven, The Netherlands) inthe course of development of the MPEG-4 Audio (ISO/IEC 14496-3). Thissoftware module is an implementation of a part of one or more MPEG-4Audio (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/IEC14496-3) free license to this software module or modifications thereoffor use in hardware or software products claiming conformance to theMPEG-4 Audio (ISO/IEC 14496-3). Those intending to use this softwaremodule in hardware or software products are advised that its use mayinfringe existing patents. The original developer of this softwaremodule and his/her company, the subsequent editors and theircompanies, and ISO/IEC have no liability for use of this softwaremodule or modifications thereof in an implementation. Copyright is notreleased for non MPEG-4 Audio (ISO/IEC 14496-3) conforming products.CN1 retains full right to use the code for his/her own purpose, assignor donate the code to a third party and to inhibit third parties fromusing the code for non MPEG-4 Audio (ISO/IEC 14496-3) conformingproducts.  This copyright notice must be included in all copies orderivative works. Copyright 1996.*//*====================================================================*//*======================================================================*//*                                                                      *//*      INCLUDE_FILE:   PHI_APRE.H                                      *//*      PACKAGE:        WDBxx                                           *//*      COMPONENT:      Adaptive Codebook Preselection Module           *//*                                                                      *//*======================================================================*/#ifndef _phi_apre_h_#define _phi_apre_h_#ifdef __cplusplusextern "C" {#endif/*======================================================================*//* Function Prototype: PHI_allocate_energy_table                        *//*======================================================================*/void PHI_allocate_energy_table(    const long sbfrm_size,          /* In: Subframe size in samples     */    const long acbk_size,           /* In: Length of Adaptive Codebook  */    const long sac_search_step      /* In: Try every $1-th sample       */    );    /*======================================================================*//* Function Prototype: PHI_cba_preselection                             *//*======================================================================*/void PHI_cba_preselection(const long  nos,	      /* In:   Number of samples to be processed	*/const long  max_lag,      /* In:   Maximum Permitted Adapt cbk Lag 	    */const long  min_lag,      /* In:   Minimum Permitted Adapt cbk Lag 	    */const long  n_sbfrm_frm,  /* In:   Number of subframes in a frame  	    */const long  n_lags,       /* In:   Number of lag candidates			    */const float ca[],	      /* In:   Segment from adaptive codebook  	    */const float ta[],	      /* In:   Backward filtered target signal 	    */const float a,  	      /* In:   Lpc Coefficients (weighted) 		    */long  pi[], 		      /* Out:  Result preselection: Lag candidates  */const long  n		      /* In:   Subframe Counter (we need this) 	    */            		      /*	   For explanation :see philips proposal*/);/*======================================================================*//* Function Prototype: PHI_free_energy_table                            *//*======================================================================*/void PHI_free_energy_table(    const long sbfrm_size,          /* In: Subframe size in samples     */    const long acbk_size            /* In: Length of Adaptive Codebook  */);#ifdef __cplusplus}#endif#endif  /* #ifndef _phi_apre_h_ *//*======================================================================*//*      H I S T O R Y                                                   *//*======================================================================*//* 17-04-96 R. Taori  Initial Version                                   */