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Saturate additions in FDKaacEnc_IntensityStereoProcessing

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This fixes a crash when encoding a sample from github issue #98.
This commit is contained in:
Martin Storsjo 2018-11-05 11:29:37 +02:00
parent 2df66985b5
commit 35d6f66c58
1 changed files with 2 additions and 2 deletions
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4
libAACenc/src/intensity.cpp
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@ -747,9 +747,9 @@ void FDKaacEnc_IntensityStereoProcessing(
j++) { j++) {
s = ((mdctSpectrumLeft[j] << s0) >> 1) + s = ((mdctSpectrumLeft[j] << s0) >> 1) +
((mdctSpectrumRight[j] << s0) >> 1); ((mdctSpectrumRight[j] << s0) >> 1);
es += fMultDiv2(s, s) >> es = fAddSaturate(es, fMultDiv2(s, s) >>
(MDCT_SPEC_SF - (MDCT_SPEC_SF -
1); // scaled 2*(mdctScale - s0 + 1) + MDCT_SPEC_SF 1)); // scaled 2*(mdctScale - s0 + 1) + MDCT_SPEC_SF
} }
msMask[sfb + sfboffs] = 0; msMask[sfb + sfboffs] = 0;
tmp = fDivNorm(sfbEnergyLeft[sfb + sfboffs], es, &s1); tmp = fDivNorm(sfbEnergyLeft[sfb + sfboffs], es, &s1);