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doing spreading function and gain quantisation in-place

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This commit is contained in:
Jean-Marc Valin 2008-03-05 23:22:00 +11:00
parent 6441379e57
commit c4a40c65c5
2 changed files with 6 additions and 14 deletions
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9
libcelt/quant_pitch.c
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@ -86,17 +86,14 @@ static void id2gains(int id, celt_pgain_t *gains, int len)
int quant_pitch(celt_pgain_t *gains, int len, ec_enc *enc)
{
int i, id;
VARDECL(celt_pgain_t *g2);
SAVE_STACK;
ALLOC(g2, len, celt_pgain_t);
/*for (i=0;i<len;i++) printf ("%f ", gains[i]);printf ("\n");*/
/* Convert to a representation where the MSE criterion should be near-optimal */
for (i=0;i<len;i++)
g2[i] = Q15ONE-celt_sqrt(Q1515ONE-MULT16_16(gains[i],gains[i]));
id = vq_index(g2, pgain_table, len, 128);
gains[i] = Q15ONE-celt_sqrt(Q1515ONE-MULT16_16(gains[i],gains[i]));
id = vq_index(gains, pgain_table, len, 128);
ec_enc_uint(enc, id, 128);
/*for (i=0;i<len;i++) printf ("%f ", pgain_table[id*len+i]);printf ("\n");*/
id2gains(id, gains, len);
RESTORE_STACK;
return id!=0;
}