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Changed GifImagePlugin to include use image info params

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This commit is contained in:
Andrew Murray 2015-08-21 22:09:05 +10:00
parent 1f8a37841c
commit f64bc891d4
2 changed files with 18 additions and 5 deletions
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21
PIL/GifImagePlugin.py
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@ -24,7 +24,8 @@
# See the README file for information on usage and redistribution. # See the README file for information on usage and redistribution.
# #
from PIL import Image, ImageFile, ImagePalette, ImageChops, ImageSequence, _binary from PIL import Image, ImageFile, ImagePalette, \
ImageChops, ImageSequence, _binary
__version__ = "0.9" __version__ = "0.9"
@ -317,6 +318,7 @@ def _save_all(im, fp, filename):
def _save(im, fp, filename, save_all=False): def _save(im, fp, filename, save_all=False):
im.encoderinfo.update(im.info)
if _imaging_gif: if _imaging_gif:
# call external driver # call external driver
try: try:
@ -347,7 +349,8 @@ def _save(im, fp, filename, save_all=False):
# e.g. getdata(im_frame, duration=1000) # e.g. getdata(im_frame, duration=1000)
if not previous: if not previous:
# global header # global header
for s in getheader(im_frame, palette, im.encoderinfo)[0] + getdata(im_frame): for s in getheader(im_frame, palette, im.encoderinfo)[0] + \
getdata(im_frame, (0, 0), **im.encoderinfo):
fp.write(s) fp.write(s)
else: else:
# delta frame # delta frame
@ -356,7 +359,8 @@ def _save(im, fp, filename, save_all=False):
if bbox: if bbox:
# compress difference # compress difference
for s in getdata(im_frame.crop(bbox), offset=bbox[:2]): for s in getdata(im_frame.crop(bbox),
bbox[:2], **im.encoderinfo):
fp.write(s) fp.write(s)
else: else:
# FIXME: what should we do in this case? # FIXME: what should we do in this case?
@ -591,7 +595,16 @@ def getheader(im, palette=None, info=None):
# size of global color table + global color table flag # size of global color table + global color table flag
header.append(o8(color_table_size + 128)) header.append(o8(color_table_size + 128))
# background + reserved/aspect # background + reserved/aspect
background = im.info["background"] if "background" in im.info else 0 if info and "background" in info:
background = info["background"]
elif "background" in im.info:
# This elif is redundant within GifImagePlugin
# since im.info parameters are bundled into the info dictionary
# However, external scripts may call getheader directly
# So this maintains earlier behaviour
background = im.info["background"]
else:
background = 0
header.append(o8(background) + o8(0)) header.append(o8(background) + o8(0))
# end of Logical Screen Descriptor # end of Logical Screen Descriptor

2
Tests/test_file_gif.py
View File

@ -96,7 +96,7 @@ class TestFileGif(PillowTestCase):
self.assertEqual(reread.n_frames, 5) self.assertEqual(reread.n_frames, 5)
def test_headers_saving_for_animated_gifs(self): def test_headers_saving_for_animated_gifs(self):
important_headers = ['background', 'version', 'transparency', 'duration', 'loop'] important_headers = ['background', 'version', 'duration', 'loop']
# Multiframe image # Multiframe image
im = Image.open("Tests/images/dispose_bgnd.gif") im = Image.open("Tests/images/dispose_bgnd.gif")