Package: rrdtool
Version: 1.2.15-0.3
Severity: wishlist
Tags: patch

Please enable better compression for png images that are output by
rrdtool.  This simple patch should do just that:


--- rrdtool-1.2.15/src/rrd_gfx.c.eerst  2007-05-21 09:28:03.430687978 +0200
+++ rrdtool-1.2.15/src/rrd_gfx.c        2007-05-21 09:26:50.913141309 +0200
@@ -827,7 +827,7 @@
   /* lets make this fast while ending up with some increass in image size */
   png_set_filter(png_ptr,0,PNG_FILTER_NONE);
   /* png_set_filter(png_ptr,0,PNG_FILTER_SUB); */
-  png_set_compression_level(png_ptr,1);
+  png_set_compression_level(png_ptr,Z_BEST_COMPRESSION);
   /* png_set_compression_strategy(png_ptr,Z_HUFFMAN_ONLY); */
   /* 
   png_set_filter(png_ptr,PNG_FILTER_TYPE_BASE,PNG_FILTER_SUB);



-- System Information:
Debian Release: 4.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-4-686
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)

Versions of packages rrdtool depends on:
ii  libart-2.0-2              2.3.17-1       Library of functions for 2D graphi
ii  libc6                     2.3.6.ds1-13   GNU C Library: Shared libraries
ii  libfreetype6              2.2.1-5        FreeType 2 font engine, shared lib
ii  libpng12-0                1.2.15~beta5-1 PNG library - runtime
ii  librrd2                   1.2.15-0.3     Time-series data storage and displ
ii  zlib1g                    1:1.2.3-13     compression library - runtime

rrdtool recommends no packages.

-- no debconf information


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