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BMP to PNG — very slow conversion

Open intelfx opened this issue 6 years ago • 2 comments

Specifically, opening the same image in e.g. Paint and "saving as" as PNG takes <1second, whereas the same conversion using FileConverter takes ~30 seconds.

System specs: Intel i7-8550U, Windows 10.

intelfx avatar Mar 08 '19 00:03 intelfx

Can you send me a BMP file that causes this bad performances?

Tichau avatar Apr 11 '19 18:04 Tichau

@Tichau sorry, didn't notice your reply up until now.

Consider, for example, this 4K screenshot: Screenshot_0035.bmp. Converting this file to PNG via FileConverter takes 19.5 seconds while "saving as" PNG in Paint takes ~0.5 seconds.

intelfx avatar Apr 18 '19 21:04 intelfx