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Automatically populate _n_frames if seeking to the last frame

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This commit is contained in:
Andrew Murray 2019-03-13 18:28:17 +11:00
parent d84fd20f0c
commit be80b083e5
1 changed files with 4 additions and 5 deletions
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9
src/PIL/TiffImagePlugin.py
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@ -998,11 +998,8 @@ class TiffImageFile(ImageFile.ImageFile):
def n_frames(self): def n_frames(self):
if self._n_frames is None: if self._n_frames is None:
current = self.tell() current = self.tell()
try: while self._n_frames is None:
while True: self._seek(self.tell() + 1)
self._seek(self.tell() + 1)
except EOFError:
self._n_frames = self.tell() + 1
self.seek(current) self.seek(current)
return self._n_frames return self._n_frames
@ -1039,6 +1036,8 @@ class TiffImageFile(ImageFile.ImageFile):
print("Loading tags, location: %s" % self.fp.tell()) print("Loading tags, location: %s" % self.fp.tell())
self.tag_v2.load(self.fp) self.tag_v2.load(self.fp)
self.__next = self.tag_v2.next self.__next = self.tag_v2.next
if self.__next == 0:
self._n_frames = frame + 1
if len(self._frame_pos) == 1: if len(self._frame_pos) == 1:
self._is_animated = self.__next != 0 self._is_animated = self.__next != 0
self.__frame += 1 self.__frame += 1