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/* 
   ITU-T G.729 Annex C+ - Reference C code for floating point 
                         implementation of G.729 Annex C+ 
                         (integration of Annexes B, D and E) 
                          Version 2.1 of October 1999 
*/ 
 
 
/* 
 File : LSPDECE.C 
 */ 
 
#include  
#include "typedef.h" 
#include "ld8k.h" 
#include "ld8cp.h" 
#include "tab_ld8k.h" 
#include "tabld8cp.h" 
 
/* Prototype definitions of static functions */ 
static void lsp_iqua_cse(int prm[], FLOAT lsp_q[], int erase, 
    FLOAT freq_prev[MA_NP][M], FLOAT prev_lsp[], int *prev_ma); 
 
 
/*---------------------------------------------------------------------------- 
 * Lsp_decw_reset -   set the previous LSP vectors 
 *---------------------------------------------------------------------------- 
 */ 
void lsp_decw_resete( 
    FLOAT freq_prev[MA_NP][M],   /* (o) : previous LSP MA vector        */ 
    FLOAT prev_lsp[],            /* (o) : previous LSP vector        */ 
    int *prev_ma               /* previous MA prediction coef.*/ 
) 
{ 
    int  i; 
     
    for(i=0; i> NC0_B) & 1; 
        code0 = prm[0] & (INT16)(NC0 - 1); 
        code1 = (prm[1] >> NC1_B) & (INT16)(NC1 - 1); 
        code2 = prm[1] & (INT16)(NC1 - 1); 
         
        lsp_get_quante(lspcb1, lspcb2, code0, code1, code2, fg[mode_index], 
            freq_prev, lsp_q, fg_sum[mode_index], buf); 
         
        copy(lsp_q, prev_lsp, M ); 
        *prev_ma = mode_index; 
    } 
    else                         /* Frame erased */ 
    { 
        copy(prev_lsp, lsp_q, M ); 
         
        /* update freq_prev */ 
        lsp_prev_extract(prev_lsp, buf, 
            fg[*prev_ma], freq_prev, fg_sum_inv[*prev_ma]); 
    } 
    lsp_prev_update(buf, freq_prev); 
    return; 
} 
/*---------------------------------------------------------------------------- 
* d_lsp - decode lsp parameters 
*---------------------------------------------------------------------------- 
*/ 
void d_lspe( 
    int prm[],                 /* (i)  : indexes of the selected LSP */ 
    FLOAT lsp_q[],             /* (o)  : Quantized LSP parameters    */ 
    int erase,                 /* (i)  : frame erase information     */ 
    FLOAT freq_prev[MA_NP][M], /* (i/o): previous LSP MA vector      */ 
    FLOAT prev_lsp[],          /* (i/o): previous LSP vector         */ 
    int *prev_ma             /* (i/o): previous MA prediction coef.*/ 
) 
{ 
    int i; 
    lsp_iqua_cse(prm, lsp_q, erase, freq_prev, prev_lsp, prev_ma); 
     
    /* Convert LSFs to LSPs */ 
     
    for (i=0; i