[swfmill] Does swfmill have any options for image compression?

[mawe]

Mark Winterhalder schrieb:
>>  Tested it at work, with a 24 bit PNG with semi-transparent areas, saved for web out of Photoshop:
>>
>>  - Original PNG: 858 KB
>>  - SWF output size, with JPEG quality for publishing set to 0 (zero): 177 KB
>>  - SWF output size, JPEG quality set to 100 (hundred): 627 KB
>>
>>  The low quality version showed heavy artifacts and was, well ... low quality.
>>  I couldn't notice any differences in quality for the high quality version, despite the 200+ KB
>>  difference in filesize.
>>
>>  Maybe this helps.
> 
> Thanks, that's not what I had expected, especially not artefacs since
> it's supposed to be lossless.
> 
> I just had a look at the official specs at
> <http://www.adobe.com/devnet/swf/> and lossless images are raw (with
> two or three settings for bits per pixel) and just zlib compressed.
> While zlib has a setting for compression level, this only affects how
> long it takes to compress, it mustn't result in loss of information.
> 
> Do the artifacts your getting maybe look like jpeg compression?
> Because that would mean that Flash converts it to jpg. That would
> surprise me quite a bit, but it would be an explanation, and it would
> be easy to check with Swfmill.
> 
> Mark

I think these are jpeg artifacts, though really strong ones.

Check it out here:
http://typeofundefined.com/stuff/screens/swf_png_low.png

Matthias