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avcodec/aacdec_template: Merge 3 #ifs related to noise handling 

Fewer #if and fewer lines

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-05-16 11:55:43 +02:00
parent 3d5863d739
commit bc33c99d56
1 changed files with 8 additions and 9 deletions
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17
libavcodec/aacdec_template.c
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@ -1673,25 +1673,24 @@ static int decode_spectrum_and_dequant(AACContext *ac, INTFLOAT coef[1024],
}
} else if (cbt_m1 == NOISE_BT - 1) {
for (group = 0; group < (AAC_SIGNE)g_len; group++, cfo+=128) {
#if !USE_FIXED
float scale;
#endif /* !USE_FIXED */
INTFLOAT band_energy;
#if USE_FIXED
for (k = 0; k < off_len; k++) {
ac->random_state = lcg_random(ac->random_state);
#if USE_FIXED
cfo[k] = ac->random_state >> 3;
#else
cfo[k] = ac->random_state;
#endif /* USE_FIXED */
}
#if USE_FIXED
band_energy = ac->fdsp->scalarproduct_fixed(cfo, cfo, off_len);
band_energy = fixed_sqrt(band_energy, 31);
noise_scale(cfo, sf[idx], band_energy, off_len);
#else
float scale;
for (k = 0; k < off_len; k++) {
ac->random_state = lcg_random(ac->random_state);
cfo[k] = ac->random_state;
}
band_energy = ac->fdsp->scalarproduct_float(cfo, cfo, off_len);
scale = sf[idx] / sqrtf(band_energy);
ac->fdsp->vector_fmul_scalar(cfo, cfo, scale, off_len);