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Do not require GPSAltitudeRef (assume positive if missing)

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This commit is contained in:
Martin Tůma 2019-03-13 22:01:05 +01:00
parent 541e658741
commit 51c88e7c7c
1 changed files with 3 additions and 3 deletions
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6
src/data/exifparser.cpp
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@ -54,8 +54,7 @@ QDate EXIFParser::date(TIFFFile &file, const IFDEntry &ds) const
double EXIFParser::altitude(TIFFFile &file, const IFDEntry &alt,
const IFDEntry &altRef) const
{
if (!(alt.type == TIFF_RATIONAL && alt.count == 1
&& altRef.type == TIFF_BYTE && altRef.count == 1))
if (!(alt.type == TIFF_RATIONAL && alt.count == 1))
return NAN;
if (!file.seek(alt.offset))
@ -67,7 +66,8 @@ double EXIFParser::altitude(TIFFFile &file, const IFDEntry &alt,
if (!file.readValue(den))
return NAN;
return altRef.offset ? -num/(double)den : num/(double)den;
return (altRef.type == TIFF_BYTE && altRef.count == 1 && altRef.offset)
? -num/(double)den : num/(double)den;
}
double EXIFParser::coordinate(TIFFFile &file, const IFDEntry &ll) const