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More useful error message when loading image from data fails

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Kovid Goyal 2026-02-01 01:01:27 +05:30
parent ce7e0eed2f
commit bdb6839a76
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1 changed files with 8 additions and 1 deletions
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9
src/calibre/utils/img.py
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@ -124,7 +124,14 @@ def image_from_data(data):
q = what(None, data)
if q == 'jxr':
return load_jxr_data(data)
raise NotImage(f'Not a valid image (detected type: {q})')
ba = QByteArray(data)
buf = QBuffer(ba)
buf.open(QIODevice.OpenModeFlag.ReadOnly)
r = QImageReader(buf)
i = r.read()
buf.close()
if i.isNull():
raise NotImage(f'Not a valid image (detected type: {q}). Error: {r.errorString()}')
return i