Issue 530 in webp: Animated graph decoding failed

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gheak… via monorail

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Jul 8, 2021, 5:18:33 AMJul 8
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Labels: Type-Defect Priority-Medium

New issue 530 by gheak...@gmail.com: Animated graph decoding failed
https://bugs.chromium.org/p/webp/issues/detail?id=530

I can view the image successfully using vwebp.exe, but using dwebp.exe decoding failed

Attachments:
微信截图_20210708171447.png 69.2 KB

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pasca… via monorail

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Jul 8, 2021, 5:45:06 AMJul 8
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Owner: pasca...@gmail.com
Status: WontFix

Comment #1 on issue 530 by pasca...@gmail.com: Animated graph decoding failed
https://bugs.chromium.org/p/webp/issues/detail?id=530#c1

The attached image is in PNG format, not in WebP format.

'vwebp.exe' agrees with that:

> vwebp attachment-509943.dat
Input file doesn't appear to be WebP format.


If you've converted this attachment to an animated-WebP file, then it's correct that 'dwebp' doesn't handle animated-WebP.
You need to use the 'anim_dump' tool (from examples/) to save individual frames of an animated-WebP.
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