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Fix a division by zero error when parsing an APE file.

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This commit is contained in:
Tsuda Kageyu 2014-12-23 20:54:20 +09:00
parent 735e17f504
commit 4a9614bfc3
1 changed files with 12 additions and 4 deletions
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16
taglib/ape/apeproperties.cpp
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@ -221,12 +221,20 @@ void APE::Properties::analyzeOld()
blocksPerFrame = 73728;
else
blocksPerFrame = 9216;
d->channels = header.toShort(4, false);
d->sampleRate = header.toUInt(6, false);
const uint finalFrameBlocks = header.toUInt(22, false);
const uint totalBlocks
= totalFrames > 0 ? (totalFrames - 1) * blocksPerFrame + finalFrameBlocks : 0;
d->length = totalBlocks / d->sampleRate;
d->bitrate = d->length > 0 ? ((d->streamLength * 8L) / d->length) / 1000 : 0;
uint totalBlocks = 0;
if(totalFrames > 0)
totalBlocks = (totalFrames - 1) * blocksPerFrame + finalFrameBlocks;
if(d->sampleRate > 0)
d->length = totalBlocks / d->sampleRate;
if(d->length > 0)
d->bitrate = ((d->streamLength * 8L) / d->length) / 1000;
}