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During Mobi generation convert image types other than GIF and JPEG.

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This commit is contained in:
Marshall T. Vandegrift 2008-12-31 17:16:53 -05:00
parent cc0185ba92
commit c2cd135cf8
1 changed files with 9 additions and 3 deletions
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12
src/calibre/ebooks/mobi/writer.py
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@ -256,15 +256,21 @@ class MobiWriter(object):
self._text_nrecords = nrecords
def _rescale_image(self, data, maxsizeb, dimen=None):
image = Image.open(StringIO(data))
format = image.format
changed = False
if image.format not in ('JPEG', 'GIF'):
format = 'GIF'
changed = True
if dimen is not None:
image = Image.open(StringIO(data))
image.thumbnail(dimen, Image.ANTIALIAS)
changed = True
if changed:
data = StringIO()
image.save(data, image.format)
image.save(data, format)
data = data.getvalue()
if len(data) < maxsizeb:
return data
image = Image.open(StringIO(data))
for quality in xrange(95, -1, -1):
data = StringIO()
image.save(data, 'JPEG', quality=quality)