[gs-bugs] [Bug 691565] tiff24lzw & tiff24zip output devices

bugzilla-daemon at ghostscript.com bugzilla-daemon at ghostscript.com
Thu Aug 19 16:35:46 UTC 2010


http://bugs.ghostscript.com/show_bug.cgi?id=691565

Ray Johnston <ray.johnston at artifex.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WORKSFORME

--- Comment #1 from Ray Johnston <ray.johnston at artifex.com> 2010-08-19 16:35:44 UTC ---
This is already done, and even documented, although you have to read on a bit
in doc/Devices.htm#TIFF to see it:

The compression scheme that is used for the image data can be set for all tiff
devices with:
-----------------------------
    -sCompression=none | crle | g3 | g4 | lzw | pack
        Change the compression scheme of the tiff device. 
        crle, g3, and g4 may only be used with 1 bit devices (including
tiffsep1).
-----------------------------

Note that MaxStripSize is used for these since libtiff doesn't do 'stream'
compression, and thus with MaxStripSize=0 will attempt to store the entire
page in RAM before compressing it. The default MaxStripSize prevents this.

All of these changes were in place by rev 10298 in March 2010 and will be
in the 9.00 release coming Real Soon Now

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