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Prevent pillow from closing non-exclusive fps (#1121)
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@ -44,29 +44,31 @@ def _resize_photo_if_needed(
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file = io.BytesIO(file)
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try:
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with PIL.Image.open(file) as image:
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if image.width <= width and image.height <= height:
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return file
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# Don't use a `with` block for `image`, or `file` would be closed.
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# See https://github.com/LonamiWebs/Telethon/issues/1121 for more.
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image = PIL.Image.open(file)
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if image.width <= width and image.height <= height:
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return file
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image.thumbnail((width, height), PIL.Image.ANTIALIAS)
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image.thumbnail((width, height), PIL.Image.ANTIALIAS)
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alpha_index = image.mode.find('A')
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if alpha_index == -1:
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# If the image mode doesn't have alpha
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# channel then don't bother masking it away.
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result = image
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else:
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# We could save the resized image with the original format, but
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# JPEG often compresses better -> smaller size -> faster upload
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# We need to mask away the alpha channel ([3]), since otherwise
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# IOError is raised when trying to save alpha channels in JPEG.
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result = PIL.Image.new('RGB', image.size, background)
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result.paste(image, mask=image.split()[alpha_index])
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alpha_index = image.mode.find('A')
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if alpha_index == -1:
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# If the image mode doesn't have alpha
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# channel then don't bother masking it away.
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result = image
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else:
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# We could save the resized image with the original format, but
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# JPEG often compresses better -> smaller size -> faster upload
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# We need to mask away the alpha channel ([3]), since otherwise
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# IOError is raised when trying to save alpha channels in JPEG.
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result = PIL.Image.new('RGB', image.size, background)
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result.paste(image, mask=image.split()[alpha_index])
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buffer = io.BytesIO()
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result.save(buffer, 'JPEG')
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buffer.seek(0)
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return buffer
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buffer = io.BytesIO()
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result.save(buffer, 'JPEG')
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buffer.seek(0)
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return buffer
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except IOError:
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return file
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