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Use duration from info dictionary when saving WebP #5338

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merged 1 commit into from Mar 21, 2021
Merged

Use duration from info dictionary when saving WebP #5338

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13 changes: 13 additions & 0 deletions Tests/test_file_webp.py
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Expand Up @@ -176,3 +176,16 @@ def test_background_from_gif(self, tmp_path):
[abs(original_value[i] - reread_value[i]) for i in range(0, 3)]
)
assert difference < 5

@skip_unless_feature("webp")
@skip_unless_feature("webp_anim")
def test_duration(self, tmp_path):
with Image.open("Tests/images/dispose_bgnd.gif") as im:
assert im.info["duration"] == 1000

out_webp = str(tmp_path / "temp.webp")
im.save(out_webp, save_all=True)

with Image.open(out_webp) as reloaded:
reloaded.load()
assert reloaded.info["duration"] == 1000
2 changes: 1 addition & 1 deletion src/PIL/WebPImagePlugin.py
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Expand Up @@ -192,7 +192,7 @@ def _save_all(im, fp, filename):
r, g, b = palette[background * 3 : (background + 1) * 3]
background = (r, g, b, 0)

duration = im.encoderinfo.get("duration", 0)
duration = im.encoderinfo.get("duration", im.info.get("duration"))
loop = im.encoderinfo.get("loop", 0)
minimize_size = im.encoderinfo.get("minimize_size", False)
kmin = im.encoderinfo.get("kmin", None)
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