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only update the disposal_method if it not 'unspecified'

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This commit is contained in:
Lars Jørgen Solberg 2014-07-03 19:01:18 +02:00
parent f88a355c6c
commit 047832c6c6
1 changed files with 8 additions and 2 deletions
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10
PIL/GifImagePlugin.py
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@ -144,8 +144,14 @@ class GifImageFile(ImageFile.ImageFile):
self.info["duration"] = i16(block[1:3]) * 10
# disposal method - find the value of bits 4 - 6
self.disposal_method = 0b00011100 & flags
self.disposal_method = self.disposal_method >> 2
dispose_bits = 0b00011100 & flags
dispose_bits = dispose_bits >> 2
if dispose_bits:
# only set the dispose if it is not
# unspecified. I'm not sure if this is
# correct, but it seems to prevent the last
# frame from looking odd for some animations
self.disposal_method = dispose_bits
elif i8(s) == 255:
#
# application extension