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Thumbnail: Support for paletted PNG files

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Raphael Michel
2022-01-04 16:26:13 +01:00
parent b3b7b9bbab
commit 30c1771d29
1 changed files with 3 additions and 1 deletions
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src/pretix/helpers/thumb.py
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@@ -173,7 +173,7 @@ def create_thumbnail(sourcename, size):
image = resize_image(image, size) image = resize_image(image, size)
if source.name.endswith('.jpg') or source.name.endswith('.jpeg'): if source.name.lower().endswith('.jpg') or source.name.lower().endswith('.jpeg'):
# Yields better file sizes for photos # Yields better file sizes for photos
target_ext = 'jpeg' target_ext = 'jpeg'
quality = 95 quality = 95
@@ -184,6 +184,8 @@ def create_thumbnail(sourcename, size):
checksum = hashlib.md5(image.tobytes()).hexdigest() checksum = hashlib.md5(image.tobytes()).hexdigest()
name = checksum + '.' + size.replace('^', 'c') + '.' + target_ext name = checksum + '.' + size.replace('^', 'c') + '.' + target_ext
buffer = BytesIO() buffer = BytesIO()
if image.mode == "P" and source.name.lower().endswith('.png'):
image = image.convert('RGBA')
if image.mode not in ("1", "L", "RGB", "RGBA"): if image.mode not in ("1", "L", "RGB", "RGBA"):
image = image.convert('RGB') image = image.convert('RGB')
image.save(fp=buffer, format=target_ext.upper(), quality=quality) image.save(fp=buffer, format=target_ext.upper(), quality=quality)