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OPF2: Backport the fallback process for reading Open Manga Format (OMF) cover images to OPF2

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The OMF cover image was not referenced in the KEPUB conversion because the EPUB Input plugin references OPF2 instead of OPF3.
This commit is contained in:
xyzzy-foo 2026-01-16 05:30:35 +09:00
parent d8f33cf65e
commit abc81de373
1 changed files with 9 additions and 0 deletions
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9
src/calibre/ebooks/metadata/opf2.py
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@ -1224,6 +1224,15 @@ class OPF: # {{{
mt = item.get('media-type', '')
if mt and 'xml' not in mt and 'html' not in mt:
return item.get('href', None)
# OMF files have the cover as the first item in the spine
first_ref = self.first_spine_item()
if first_ref:
for item in self.itermanifest():
if item.get('href') == first_ref:
mt = item.get('media-type', '')
if mt and mt.lower() in {'image/jpeg', 'image/jpg', 'image/png', 'image/webp'}:
return first_ref
break
@property
def raster_cover(self):