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Handle default value for RowsPerStrip TIFF tag

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This commit is contained in:
Andrew Murray 2021-03-25 17:04:31 +11:00
parent 759c518420
commit b541aff64a
3 changed files with 10 additions and 2 deletions
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Tests/images/one_strip.tif Normal file
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5
Tests/test_file_libtiff.py
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@ -869,6 +869,11 @@ class TestFileLibTiff(LibTiffTestCase):
im.load()
assert im.size == (950, 975)
def test_one_strip(self):
with Image.open("Tests/images/one_strip.tif") as im:
im.load()
assert im.size == (1728, 2344)
def test_orientation(self):
with Image.open("Tests/images/g4_orientation_1.tif") as base_im:
for i in range(2, 9):

5
src/libImaging/TiffDecode.c
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@ -328,7 +328,10 @@ _decodeStrip(Imaging im, ImagingCodecState state, TIFF *tiff) {
int ret;
ret = TIFFGetField(tiff, TIFFTAG_ROWSPERSTRIP, &rows_per_strip);
if (ret != 1) {
if (
ret != 1 ||
rows_per_strip == 4294967295 // 2 ** 32 - 1, the default
) {
rows_per_strip = state->ysize;
}
TRACE(("RowsPerStrip: %u \n", rows_per_strip));