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Energy quantization tuning.

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Prediction coefficient now depends on the frame size. Also, the pdfs and means
have been adjusted and better quantized. This breaks compatibility of course.
This commit is contained in:
Jean-Marc Valin 2010-07-23 16:10:36 -04:00
parent 2ed05631f8
commit ca6533cd88
6 changed files with 28 additions and 30 deletions
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4
libcelt/celt.c
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@ -986,7 +986,7 @@ int celt_encode_with_ec_float(CELTEncoder * restrict st, const celt_sig * pcm, c
#else
max_decay = .125*nbAvailableBytes;
#endif
quant_coarse_energy(st->mode, st->start, st->end, bandLogE, st->oldBandE, nbCompressedBytes*8, intra_ener, st->mode->prob, error, enc, C, max_decay);
quant_coarse_energy(st->mode, st->start, st->end, bandLogE, st->oldBandE, nbCompressedBytes*8, intra_ener, st->mode->prob, error, enc, C, LM, max_decay);
/* Variable bitrate */
if (vbr_rate>0)
{
@ -1800,7 +1800,7 @@ int celt_decode_with_ec_float(CELTDecoder * restrict st, const unsigned char *da
ALLOC(fine_quant, st->mode->nbEBands, int);
/* Get band energies */
unquant_coarse_energy(st->mode, st->start, st->end, bandE, st->oldBandE, intra_ener, st->mode->prob, dec, C);
unquant_coarse_energy(st->mode, st->start, st->end, bandE, st->oldBandE, intra_ener, st->mode->prob, dec, C, LM);
ALLOC(tf_res, st->mode->nbEBands, int);
tf_decode(st->start, st->end, C, isTransient, tf_res, nbAvailableBytes, LM, dec);