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change MonochromeJpegError to JpegColorspaceError and add check for jpegs with alpha channel

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This commit is contained in:
Johannes 'josch' Schauer 2016-02-17 00:37:13 +01:00
parent d9b2550ceb
commit 3e8894c7da
1 changed files with 5 additions and 3 deletions
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8
src/img2pdf.py
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@ -86,7 +86,7 @@ class ImageOpenError(Exception):
pass
class MonochromeJpegError(Exception):
class JpegColorspaceError(Exception):
pass
@ -616,9 +616,11 @@ def read_images(rawdata, colorspace, first_frame_only=False):
color, ndpi, imgwidthpx, imgheightpx = get_imgmetadata(
imgdata, imgformat, default_dpi, colorspace, rawdata)
if color == Colorspace['1']:
raise MonochromeJpegError("jpeg can't be monochrome")
raise JpegColorspaceError("jpeg can't be monochrome")
if color == Colorspace['P']:
raise MonochromeJpegError("jpeg can't have a color palette")
raise JpegColorspaceError("jpeg can't have a color palette")
if color == Colorspace['RGBA']:
raise JpegColorspaceError("jpeg can't have an alpha channel")
im.close()
return [(color, ndpi, imgformat, rawdata, imgwidthpx, imgheightpx)]
else: