#3407: tiff/geotiff support : number precision is not sufficient in double to
string conversion
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Reporter: LeRatier | Type:
Status: new | enhancement
Component: avcodec | Priority: normal
Keywords: tiff, | Version: git-
geotiff | master
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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In libavcodec/tiff.c, the double values of the GEOTIFF format are
converted to string thru the double2str() function.
This function is truncating double to 6 digits (ie the printf("%f")
default), leading to critical precision loss when using the result on the
decoder side
An easy patch would be to modify the "%f%s" of the snprintf in a
"%.15g%s" for example.
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Ticket URL: <https://trac.ffmpeg.org/ticket/3407>
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