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Kindle output: Fix cover images that contain EXIF data but not an EXIF rotation not displaying on the Kindle lockscreen

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The code to strip EXIF would only do so if the EXIF actually had a
rotation. Now we always strip the EXIF data. Fixes #1943495 [Lockscreen covers not shown on Kindle for JPEGs with EXIF information](https://bugs.launchpad.net/calibre/+bug/1943495)
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Kovid Goyal 2024-05-28 09:27:48 +05:30
parent 6d47a9760e
commit 8e167914cd
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1 changed files with 3 additions and 1 deletions
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src/calibre/ebooks/mobi/writer2/resources.py
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@ -27,12 +27,14 @@ def process_jpegs_for_amazon(data: bytes) -> bytes:
# Amazon's MOBI renderer can't render JPEG images without JFIF metadata # Amazon's MOBI renderer can't render JPEG images without JFIF metadata
# and images with EXIF data dont get displayed on the cover screen # and images with EXIF data dont get displayed on the cover screen
changed = not img.info changed = not img.info
has_exif = False
if hasattr(img, 'getexif'): if hasattr(img, 'getexif'):
exif = img.getexif() exif = img.getexif()
has_exif = bool(exif)
if exif.get(0x0112) in (2,3,4,5,6,7,8): if exif.get(0x0112) in (2,3,4,5,6,7,8):
changed = True changed = True
img = ImageOps.exif_transpose(img) img = ImageOps.exif_transpose(img)
if changed: if changed or has_exif:
out = BytesIO() out = BytesIO()
img.save(out, 'JPEG') img.save(out, 'JPEG')
data = out.getvalue() data = out.getvalue()