Activity for PNG and MNG tools

Alexander Walter created ticket #83

Alexander Walter — Thu, 15 May 2025 05:35:09 -0000

pngcrush 1.8.13 not building in Windows 11

Thomas Klausner posted a comment on ticket #82

Thomas Klausner — Wed, 12 Feb 2025 10:16:23 -0000

In pkgsrc, we just remove the call completely: --- pngcrush.c.orig 2024-02-01 09:09:19.207140753 +0000 +++ pngcrush.c @@ -5520,8 +5520,6 @@ int main(int argc, char *argv[]) * they were already checked in the pngcrush_measure_idat * function */ - png_set_option(read_ptr, PNG_IGNORE_ADLER32, - PNG_OPTION_ON); png_set_crc_action(read_ptr, PNG_CRC_QUIET_USE, PNG_CRC_QUIET_USE); }

Nils Philippsen posted a comment on ticket #82

Nils Philippsen — Wed, 12 Feb 2025 09:43:30 -0000

There’s a PR on GitHub with a fix (though it’s closed and not applied because the contributor deleted their fork): https://github.com/glennrp/pmt/pull/2

Thomas Klausner posted a comment on ticket #82

Thomas Klausner — Thu, 01 Feb 2024 09:20:52 -0000

That should have been 'pngcrush 1.8.13 does not build against png 1.6.42' in the subject, sorry.

Thomas Klausner created ticket #82

Thomas Klausner — Thu, 01 Feb 2024 09:17:53 -0000

png 1.8.13 does not build against png 1.6.42

Johannes Kalliauer created ticket #81

Johannes Kalliauer — Tue, 18 Oct 2022 22:14:09 -0000

increases file-size

Max Pray created ticket #15

Max Pray — Sun, 10 Jul 2022 07:05:50 -0000

Add man page

Damion modified a comment on ticket #9

Damion — Sat, 22 Sep 2018 11:07:03 -0000

In Linux etc. pngcrush can already output to /dev/stdout as the outfile.png ; it can even load /dev/stdin as the infile.png the first time it attempts to do so; the problem is that pngcrush attempts to load the same infile.png more than once, which fails when infile.png was streamed in from the previous process as /dev/stdin. A hack for Linux etc. would be in the source code to look for if the inname variable equals "/dev/stdin", write the stream to something like temp.png, then update the value...

Damion posted a comment on ticket #9

Damion — Sat, 22 Sep 2018 11:03:07 -0000

In Linux etc. pngcrush can already output to /dev/stdout as the outfile.png ; it can even load /dev/stdin as the infile.png the first time it attempts to do so; the problem is that pngcrush attempts to load the same infile.png more than once, which fails when infile.png was streamed in from the previous process as /dev/stdin. A hack for Linux etc. would be in the source code to look for if the inname variable in equals "/dev/stdin", write the stream to something like temp.png, then update the value...

Samuel Messner created ticket #80

Samuel Messner — Fri, 09 Feb 2018 12:30:29 -0000

-fix does not work as documented

Yuriy Glukhov modified a comment on ticket #79

Yuriy Glukhov — Thu, 01 Feb 2018 12:04:42 -0000

Correction. The command to run: pngcrush -q -rem allb -reduce src.png pngout.png attached

Yuriy Glukhov posted a comment on ticket #79

Yuriy Glukhov — Thu, 01 Feb 2018 12:03:26 -0000

pngout.png attached

Yuriy Glukhov created ticket #79

Yuriy Glukhov — Thu, 01 Feb 2018 12:02:55 -0000

pngcrush corrupts the image

Maksim Derbasov posted a comment on ticket #78

Maksim Derbasov — Sun, 21 Jan 2018 02:28:05 -0000

tool: pngcrush

Maksim Derbasov created ticket #78

Maksim Derbasov — Wed, 17 Jan 2018 00:05:44 -0000

oldtimeout with overwrite

Glenn Randers-Pehrson committed [7ae751]

Glenn Randers-Pehrson — Wed, 01 Nov 2017 15:41:28 -0000

[pngcrush] Revise "-force/-noforce" documentation

Glenn Randers-Pehrson committed [18214b]

Glenn Randers-Pehrson — Wed, 01 Nov 2017 15:24:14 -0000

[pngcrush] Fix documentation about "-noforce"; fix "-bail" behaviour

Glenn Randers-Pehrson committed [4f75e3]

Glenn Randers-Pehrson — Sun, 15 Oct 2017 01:02:47 -0000

[Pngcrush] Update pngcrush to 1.8.14 and libpng to libpng-1.6.34

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13-HELP.txt

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13.tar.xz.asc

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13-nolib.zip.asc

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13.tar.gz

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13-nolib.tar.gz.asc

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13-nolib.zip

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13-nolib.tar.xz.asc

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13.zip

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13-LICENSE.txt

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13.7z.asc

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13-nolib.tar.gz

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13.zip.asc

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13.tar.xz

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13.7z

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13-nolib.tar.xz

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13.tar.gz.asc

PNG and MNG tools — Tue, 29 Aug 2017 21:27:04 -0000

PNG and MNG tools released /pngcrush/1.8.13/pngcrush-1.8.13-ANNOUNCE.html

PNG and MNG tools — Tue, 29 Aug 2017 21:27:03 -0000

PNG and MNG tools released /pngcrush/1.8.13/ChangeLog.html

PNG and MNG tools — Tue, 29 Aug 2017 21:27:03 -0000

Glenn Randers-Pehrson committed [3d690b]

Glenn Randers-Pehrson — Tue, 29 Aug 2017 21:18:15 -0000

[pngcrush] Version 1.8.13 (built with libpng-1.6.32 and zlib-1.2.11)

ilovezfs posted a comment on ticket #77

ilovezfs — Mon, 21 Aug 2017 15:01:32 -0000

There is no clock_gettime on macOS prior to 10.12.

Glenn Randers-Pehrson posted a comment on ticket #77

Glenn Randers-Pehrson — Mon, 21 Aug 2017 14:59:59 -0000

There's no problem with MacOS 10 on pngcrush. It's the problem of finding clock_gettime on older versions. Apparently ImageMagick's scheme finds it but simply adding librt to LIBS doesn't do it for pngcrush. Incidentally libpng has the same problem. I think you will find that on MacOS 10, the "timepng" tool gets built but on the older Macs it will be omitted.

Zhiming Wang posted a comment on ticket #77

Zhiming Wang — Mon, 21 Aug 2017 14:32:44 -0000

clock_gettime(3) is found in libc (/usr/lib/system/libsystem_c.dylib) on macOS 10.12+. There's no seperate librt. AC_SEARCH_LIBS(clock_gettime, rt, ...) does not guarantee librt is present. It only attempts to link against librt if clock_gettime isn't available when linking aginast no extra libraries; but since it's already in libc, the -lrt step is simply skipped.

Glenn Randers-Pehrson modified a comment on ticket #77

Glenn Randers-Pehrson — Mon, 21 Aug 2017 14:12:22 -0000

Well, that indicates that -lrt should work. ImageMagick's configure.ac is heavy reading, but somehow it's finding librt. It uses autoconf Check for clock_gettime(). AC_SEARCH_LIBS(clock_gettime, rt, AC_DEFINE([HAVE_CLOCK_GETTIME,[1],[Define to 1 if you have clock_gettime.]) AC_MSG_CHECKING([whether clock_gettime supports CLOCK_REALTIME]) AC_COMPILE_IFELSE( AC_LANG_PROGRAM( [[#include ]], [[clockid_t clockType = CLOCK_REALTIME;]]), AC_MSG_RESULT(yes) AC_DEFINE([HAVE_CLOCK_REALTIME,[1], [Define...

Glenn Randers-Pehrson posted a comment on ticket #77

Glenn Randers-Pehrson — Mon, 21 Aug 2017 14:09:41 -0000

ilovezfs posted a comment on ticket #77

ilovezfs — Mon, 21 Aug 2017 13:48:01 -0000

bash-3.2$ grep GETTIME config/config.h /* #undef HAVE_CLOCK_GETTIME */ #define HAVE_GETTIMEOFDAY 1 bash-3.2$

Glenn Randers-Pehrson posted a comment on ticket #77

Glenn Randers-Pehrson — Mon, 21 Aug 2017 13:33:25 -0000

Would you configure ImageMagick on your platform and do grep GETTIME config/config.h

ilovezfs posted a comment on ticket #77

ilovezfs — Mon, 21 Aug 2017 11:04:51 -0000

No, unfortunately, that just leads to ld: library not found for -lrt.

Glenn Randers-Pehrson posted a comment on ticket #77

Glenn Randers-Pehrson — Mon, 21 Aug 2017 10:45:48 -0000

On some platforms it is sufficient to enable "LIBS += -lrt" in the Makefile. Does that work on the MacOS/XCode versions that are having trouble? I believe that would be a better solution if it works because it will give you the high-resolution timing.

ilovezfs created ticket #77

ilovezfs — Mon, 21 Aug 2017 04:57:53 -0000

OS X 10.11 with Xcode 8.x clock_gettime problem

Glenn Randers-Pehrson modified a comment on ticket #76

Glenn Randers-Pehrson — Tue, 15 Aug 2017 22:28:49 -0000

Fixed in the GIT repos. Just add "exit (0);" around line 4478 in pngcrush.c until I push 1.8.13 out soon with the fix. The "CPU time" line will not appear.

Glenn Randers-Pehrson posted a comment on ticket #76

Glenn Randers-Pehrson — Tue, 15 Aug 2017 22:27:59 -0000

Fixed in the GIT repos. Just add "exit (0);" around line 4478 in pngcrush.c until I push 1.8.13 out soon with the fix.

Glenn Randers-Pehrson committed [6fa635]

Glenn Randers-Pehrson — Tue, 15 Aug 2017 22:24:34 -0000

Add "exit(0)" after processing the "-version" argument (thanks to Peter Hagan).

Glenn Randers-Pehrson posted a comment on ticket #76

Glenn Randers-Pehrson — Tue, 15 Aug 2017 22:13:53 -0000

Ah, thanks. I'll take care of it soon. Glenn

Peter Hagen posted a comment on ticket #76

Peter Hagen — Tue, 15 Aug 2017 21:41:58 -0000

...no? :) I may not have made it clear that I'm talking about "pngcrush -version".

Glenn Randers-Pehrson posted a comment on ticket #76

Glenn Randers-Pehrson — Tue, 15 Aug 2017 21:31:39 -0000

Did you add the "Check ..for the most recent version" yourself, then? It isn't coming from the pngcrush that I'm distributing.

Peter Hagen posted a comment on ticket #76

Peter Hagen — Tue, 15 Aug 2017 21:21:01 -0000

I've used the versions from here (https://sourceforge.net/projects/pmt/files/pngcrush/).

Glenn Randers-Pehrson modified ticket #76

Glenn Randers-Pehrson — Tue, 15 Aug 2017 18:30:58 -0000

pngcrush -version behavior different in 1.8.12

Glenn Randers-Pehrson posted a comment on ticket #76

Glenn Randers-Pehrson — Tue, 15 Aug 2017 18:30:11 -0000

You can try using "pngcrush -v ...." to get the same output (more or less) as pngcrush-1.8.11

Glenn Randers-Pehrson posted a comment on ticket #76

Glenn Randers-Pehrson — Tue, 15 Aug 2017 18:28:14 -0000

Your pngcrush has been modified downstream. Where did you get it? (The pngcrush distributed from here does not say "Check http://pmt.sf.net for the most recent version.")

Peter Hagen created ticket #76

Peter Hagen — Tue, 15 Aug 2017 17:55:02 -0000

pngcrush -version behavior different in 1.8.12

Glenn Randers-Pehrson created a blog post

Glenn Randers-Pehrson — Sun, 30 Jul 2017 14:54:14 -0000

pngcrush-1.8.12 released

PNG and MNG tools released /pngcrush/1.8.12/pngcrush-1.8.12.zip.asc