* Log message "Unknown filter 'DCTDecode'"
@ 2017-06-16 7:15 Christoph Reller
2017-06-16 7:40 ` luigi scarso
0 siblings, 1 reply; 8+ messages in thread
From: Christoph Reller @ 2017-06-16 7:15 UTC (permalink / raw)
To: ntg-context
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Hi,
In recent versions of ConTeXt/luatex, I observe the following log entry:
Syntax Error (77727): Unknown filter 'DCTDecode'
This happens if the document includes JPEG images, e.g:
\starttext
\externalfigure[hacker.jpg]
\stoptext
The output PDF looks, however, fine. Does this message have any
significance?
Cheers,
Christoph
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* Re: Log message "Unknown filter 'DCTDecode'"
2017-06-16 7:15 Christoph Reller
@ 2017-06-16 7:40 ` luigi scarso
2017-06-16 9:04 ` Ulrike Fischer
0 siblings, 1 reply; 8+ messages in thread
From: luigi scarso @ 2017-06-16 7:40 UTC (permalink / raw)
To: mailing list for ConTeXt users
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Il 16 giu 2017 09:16, "Christoph Reller" <christoph.reller@gmail.com> ha
scritto:
Hi,
In recent versions of ConTeXt/luatex, I observe the following log entry:
Syntax Error (77727): Unknown filter 'DCTDecode'
This happens if the document includes JPEG images, e.g:
\starttext
\externalfigure[hacker.jpg]
\stoptext
not here, with that image.
Can you give us
context --version
luatex --version
?
--
luigi
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* Re: Log message "Unknown filter 'DCTDecode'"
2017-06-16 7:40 ` luigi scarso
@ 2017-06-16 9:04 ` Ulrike Fischer
2017-06-16 9:08 ` luigi scarso
0 siblings, 1 reply; 8+ messages in thread
From: Ulrike Fischer @ 2017-06-16 9:04 UTC (permalink / raw)
To: ntg-context
Am Fri, 16 Jun 2017 09:40:09 +0200 schrieb luigi scarso:
> Il 16 giu 2017 09:16, "Christoph Reller" <christoph.reller@gmail.com> ha
> scritto:
>
> Hi,
>
> In recent versions of ConTeXt/luatex, I observe the following log entry:
>
> Syntax Error (77727): Unknown filter 'DCTDecode'
>
> This happens if the document includes JPEG images, e.g:
>
> \starttext
> \externalfigure[hacker.jpg]
> \stoptext
>
>
>
> not here, with that image.
I can't reproduce it either in a current minimals, but miktex had
for a few days a similar bug which affected pdftex and (according
Christian) also luatex: https://sourceforge.net/p/miktex/bugs/2605/
--
Ulrike Fischer
http://www.troubleshooting-tex.de/
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Log message "Unknown filter 'DCTDecode'"
2017-06-16 9:04 ` Ulrike Fischer
@ 2017-06-16 9:08 ` luigi scarso
2017-06-16 9:19 ` Ulrike Fischer
0 siblings, 1 reply; 8+ messages in thread
From: luigi scarso @ 2017-06-16 9:08 UTC (permalink / raw)
To: mailing list for ConTeXt users
On Fri, Jun 16, 2017 at 11:04 AM, Ulrike Fischer <news3@nililand.de> wrote:
> I can't reproduce it either in a current minimals, but miktex had
> for a few days a similar bug which affected pdftex and (according
> Christian) also luatex: https://sourceforge.net/p/miktex/bugs/2605/
The message from him
"""
Thanks, I have fixed this (luatex and xetex were also affected).
"""
is a bit cryptic, as I have not seen patches for this issue in luatex
(perhaps in texlive ?)
--
luigi
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* Re: Log message "Unknown filter 'DCTDecode'"
2017-06-16 9:08 ` luigi scarso
@ 2017-06-16 9:19 ` Ulrike Fischer
2017-06-16 9:23 ` luigi scarso
0 siblings, 1 reply; 8+ messages in thread
From: Ulrike Fischer @ 2017-06-16 9:19 UTC (permalink / raw)
To: ntg-context
Am Fri, 16 Jun 2017 11:08:21 +0200 schrieb luigi scarso:
>> I can't reproduce it either in a current minimals, but miktex had
>> for a few days a similar bug which affected pdftex and (according
>> Christian) also luatex: https://sourceforge.net/p/miktex/bugs/2605/
>
> The message from him
> """
> Thanks, I have fixed this (luatex and xetex were also affected).
> """
> is a bit cryptic, as I have not seen patches for this issue in luatex
> (perhaps in texlive ?)
I didn't get the issue with texlive, so imho it had to do with
something special to the miktex compilation. The commit that fixed
the issue is here:
https://github.com/MiKTeX/miktex/commit/4a3d1592214f53760f456e54fa2b327f4ac4023c
--
Ulrike Fischer
http://www.troubleshooting-tex.de/
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Log message "Unknown filter 'DCTDecode'"
2017-06-16 9:19 ` Ulrike Fischer
@ 2017-06-16 9:23 ` luigi scarso
2017-06-19 10:21 ` luigi scarso
0 siblings, 1 reply; 8+ messages in thread
From: luigi scarso @ 2017-06-16 9:23 UTC (permalink / raw)
To: mailing list for ConTeXt users
On Fri, Jun 16, 2017 at 11:19 AM, Ulrike Fischer <news3@nililand.de> wrote:
>
> https://github.com/MiKTeX/miktex/commit/4a3d1592214f53760f456e54fa2b327f4ac4023c
hm poppler -- we are switching to 0.55.
Ok, we will see. Thank you for the link.
--
luigi
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* Re: Log message "Unknown filter 'DCTDecode'"
2017-06-16 9:23 ` luigi scarso
@ 2017-06-19 10:21 ` luigi scarso
0 siblings, 0 replies; 8+ messages in thread
From: luigi scarso @ 2017-06-19 10:21 UTC (permalink / raw)
To: mailing list for ConTeXt users
On Fri, Jun 16, 2017 at 11:23 AM, luigi scarso <luigi.scarso@gmail.com> wrote:
> On Fri, Jun 16, 2017 at 11:19 AM, Ulrike Fischer <news3@nililand.de> wrote:
>>
>> https://github.com/MiKTeX/miktex/commit/4a3d1592214f53760f456e54fa2b327f4ac4023c
>
> hm poppler -- we are switching to 0.55.
> Ok, we will see. Thank you for the link.
>
>
> --
> luigi
With poppler 0.55,
I am able to reproduce it with
$ convert -size 100x100 radial-gradient: rgradient.jpg; convert
rgradient.jpg rgradient.pdf
$ cat test.tex
\starttext
\externalfigure[rgradient.pdf]
\stoptext
Syntax Error (623): Unknown filter 'DCTDecode'
I'm investigating
--
luigi
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2017-06-21 9:23 ` Log message "Unknown filter 'DCTDecode'" Christoph Reller
2017-06-16 7:15 Christoph Reller
2017-06-16 7:40 ` luigi scarso
2017-06-16 9:04 ` Ulrike Fischer
2017-06-16 9:08 ` luigi scarso
2017-06-16 9:19 ` Ulrike Fischer
2017-06-16 9:23 ` luigi scarso
2017-06-19 10:21 ` luigi scarso
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