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mp4 properties: handle the case when mp4 file header has zero bitrate

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calculate it based on filesize and length
This commit is contained in:
Nick Shaforostoff 2019-04-13 18:43:44 +02:00
parent 6455671ece
commit 6ca536b5b6
1 changed files with 6 additions and 1 deletions
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7
taglib/mp4/mp4properties.cpp
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@ -213,7 +213,12 @@ MP4::Properties::read(File *file, Atoms *atoms)
pos += 3;
}
pos += 10;
d->bitrate = static_cast<int>((data.toUInt(pos) + 500) / 1000.0 + 0.5);
if(data.toUInt(pos) != 0u || d->length <= 0) {
d->bitrate = static_cast<int>((data.toUInt(pos) + 500) / 1000.0 + 0.5);
}
else {
d->bitrate = 8 * (file->length() - atom->offset - atom->length) / d->length;
}
}
}
}