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avcodec/dcaenc: fix lfe fir coefficients

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2015-09-17 21:13:37 +00:00
parent 58fe57d5a0
commit 32e1af77ec
1 changed files with 5 additions and 4 deletions
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9
libavcodec/dcaenc.c
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@ -174,10 +174,11 @@ static int encode_init(AVCodecContext *avctx)
cb_to_level[i] = (int32_t)(0x7fffffff * pow(10, -0.005 * i));
}
/* FIXME: probably incorrect */
for (i = 0; i < 256; i++) {
lfe_fir_64i[i] = (int32_t)(0x01ffffff * ff_dca_lfe_fir_64[i]);
lfe_fir_64i[511 - i] = (int32_t)(0x01ffffff * ff_dca_lfe_fir_64[i]);
for (k = 0; k < 32; k++) {
for (j = 0; j < 8; j++) {
lfe_fir_64i[64 * j + k] = (int32_t)(0xffffff800000ULL * ff_dca_lfe_fir_64[8 * k + j]);
lfe_fir_64i[64 * (7-j) + (63 - k)] = (int32_t)(0xffffff800000ULL * ff_dca_lfe_fir_64[8 * k + j]);
}
}
for (i = 0; i < 512; i++) {