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Fix line lengths and init background out of loop

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This commit is contained in:
Riley Lahd 2019-03-11 07:55:37 -06:00
parent 215cdfd0d5
commit 3b74281a2f
1 changed files with 6 additions and 4 deletions
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10
src/PIL/GifImagePlugin.py
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@ -423,6 +423,7 @@ def _write_multiple_frames(im, fp, palette):
im_frames = []
frame_count = 0
background = None
for imSequence in itertools.chain([im],
im.encoderinfo.get("append_images", [])):
for im_frame in ImageSequence.Iterator(imSequence):
@ -443,20 +444,21 @@ def _write_multiple_frames(im, fp, palette):
if im_frames:
# delta frame
previous = im_frames[-1]
if ("disposal" in im.encoderinfo and im.encoderinfo["disposal"] == 2):
if ("disposal" in im.encoderinfo \
and im.encoderinfo["disposal"] == 2):
base_image = background
else:
base_image = previous["im"]
if _get_palette_bytes(im_frame) == \
_get_palette_bytes(base_image):
delta = ImageChops.subtract_modulo(im_frame,
base_image)
delta = ImageChops.subtract_modulo(im_frame, base_image)
else:
delta = ImageChops.subtract_modulo(
im_frame.convert('RGB'), base_image.convert('RGB'))
bbox = delta.getbbox()
if not bbox and not ("disposal" in im.encoderinfo and im.encoderinfo["disposal"] == 2):
if not bbox and not ("disposal" in im.encoderinfo \
and im.encoderinfo["disposal"] == 2):
# This frame is identical to the previous frame
if duration:
previous['encoderinfo']['duration'] += \