WebP no compression

oX Triangle

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Mar 28, 2016, 9:43:33 AM3/28/16

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my question is: what exactly means "-m 0" (FAST)?

its a fast compression or a story/copy mode means NO compression?

for the case its means first point

suggest a new mode "-m -1" or "-m no" to get real no compression data

useful for compression experiments similar 7zip or for fast workspaces (ssd-disk)

James Zern

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Mar 30, 2016, 9:18:03 PM3/30/16

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Hi,

On Monday, March 28, 2016 at 6:43:33 AM UTC-7, oX Triangle wrote:

my question is: what exactly means "-m 0" (FAST)?

its a fast compression or a story/copy mode means NO compression?

-m (method) is a quality vs. speed trade-off. Lower -m values will do less analysis to speed up the encode at the cost of final file size and quality in the lossy case.

for the case its means first point
suggest a new mode "-m -1" or "-m no" to get real no compression data

I'm not sure I understand. You're suggesting a raw pass through method?

oX Triangle

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Jul 11, 2016, 12:09:51 PM7/11/16

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I'm not sure I understand. You're suggesting a raw pass through method?

useful for compression experiments similar 7zip or for fast workspaces (ssd-disk)

yes.. to deactivate any compressions on filelevel (L77 routines )

James Zern

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Jul 13, 2016, 1:52:36 AM7/13/16

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In that case you could simply decode the source to a ppm or pam and use that as source.

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