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Fix: Return a minimum width or height of 1 when trying to aspect a thumbnail.

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This commit is contained in:
Studying 2021-11-09 23:10:53 +01:00
parent 0ef69ddbdc
commit e6c14d14ee
1 changed files with 4 additions and 4 deletions
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8
synapse/rest/media/v1/thumbnailer.py
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@ -101,8 +101,8 @@ class Thumbnailer:
fits within the given rectangle::
(w_in / h_in) = (w_out / h_out)
w_out = min(w_max, h_max * (w_in / h_in))
h_out = min(h_max, w_max * (h_in / w_in))
w_out = max(min(w_max, h_max * (w_in / h_in)), 1)
h_out = max(min(h_max, w_max * (h_in / w_in)), 1)
Args:
max_width: The largest possible width.
@ -110,9 +110,9 @@ class Thumbnailer:
"""
if max_width * self.height < max_height * self.width:
return max_width, (max_width * self.height) // self.width
return max_width, max((max_width * self.height) // self.width, 1)
else:
return (max_height * self.width) // self.height, max_height
return max((max_height * self.width) // self.height, 1), max_height
def _resize(self, width: int, height: int) -> Image.Image:
# 1-bit or 8-bit color palette images need converting to RGB