[swfmill] Bitmap Encoding on <data> element.

[Fred]

On Wed, Dec 2, 2009 at 6:52 PM, Daniel Cassidy <mail at danielcassidy.me.uk> wrote:
> 2009/12/2 Fred <phreed at gmail.com>:
>> I've got a swf2xml which contains something like...
>>
>> ...
>>   <DefineBitsLossless2 objectID="1" format="5" width="243" height="256">
>>        <data>
>>          <data>eNrtnQl8TOf6x3+WCKFS+1ZFaU
>> ...
>>        vn8vWyJshf8B9JqkqA==</data></data>
>>      </DefineBitsLossless2>
>> ...
>>
>> What is the encoding type of the inner data element?
>
> It is the raw bitmap data used by Flash, base 64 encoded (so as to be
> valid within an XML document).
>
> Once you’ve base 64 decoded it, the format is zlib-compressed
> ALPHABITMAPDATA as specified by the SWF specification. That is, for
> each pixel in the image from left to right, top to bottom: one byte
> alpha, one byte red, one byte green, one byte blue. Don’t forget to
> decompress it first! :)
>
> Hope this helps,
> Dan.

Thanks, that did the trick.