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Correct the scaling of the coeffs to 17bits.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27599 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Mohamed Tarek 2010-07-28 18:39:10 +00:00
parent a9acd1f45b
commit 7722c1d459
2 changed files with 3 additions and 3 deletions
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4
apps/codecs/libwmapro/wma.c
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@ -116,7 +116,7 @@ int ff_wma_run_level_decode(GetBitContext* gb,
offset += run_table[code]; offset += run_table[code];
sign = !get_bits1(gb); sign = !get_bits1(gb);
ptr[offset & coef_mask] = sign ? -level_table[code] : level_table[code]; ptr[offset & coef_mask] = sign ? -level_table[code] : level_table[code];
ptr[offset & coef_mask] <<= 16; ptr[offset & coef_mask] <<= 17;
} else if (code == 1) { } else if (code == 1) {
/** EOB */ /** EOB */
break; break;
@ -144,7 +144,7 @@ int ff_wma_run_level_decode(GetBitContext* gb,
} }
sign = !get_bits1(gb); sign = !get_bits1(gb);
ptr[offset & coef_mask] = sign ? -level : level; ptr[offset & coef_mask] = sign ? -level : level;
ptr[offset & coef_mask] <<=16; ptr[offset & coef_mask] <<=17;
} }
} }
/** NOTE: EOB can be omitted */ /** NOTE: EOB can be omitted */

2
apps/codecs/libwmapro/wmaprodec.c
View file

@ -873,7 +873,7 @@ static int decode_coeffs(WMAProDecodeCtx *s, int c)
for (i = 0; i < 4; i++) { for (i = 0; i < 4; i++) {
if (vals[i]) { if (vals[i]) {
int sign = get_bits1(&s->gb) - 1; int sign = get_bits1(&s->gb) - 1;
ci->coeffs[cur_coeff] = (sign == -1)? -vals[i]<<16 : vals[i]<<16; ci->coeffs[cur_coeff] = (sign == -1)? -vals[i]<<17 : vals[i]<<17;
num_zeros = 0; num_zeros = 0;
} else { } else {
ci->coeffs[cur_coeff] = 0; ci->coeffs[cur_coeff] = 0;