Re: Log message "Unknown filter 'DCTDecode'"

Re: Log message "Unknown filter 'DCTDecode'"

[Christoph Reller]

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On Mon, 19 Jun 2017 12:21:00 +0200 luigi scarso <luigi.scarso@gmail.com
> wrote:

> 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
>

Thank you Luigi,

This error message is gone now. Sorry for the confusion I have created by
not having reported a well defined way to produce this message.

Cheers, Christoph

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Re: Log message "Unknown filter 'DCTDecode'"

[luigi scarso]

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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Re: Log message "Unknown filter 'DCTDecode'"

[luigi scarso]

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'"

[Ulrike Fischer]

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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Re: Log message "Unknown filter 'DCTDecode'"

[luigi scarso]

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'"

[Ulrike Fischer]

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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Re: Log message "Unknown filter 'DCTDecode'"

[luigi scarso]

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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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Log message "Unknown filter 'DCTDecode'"

[Christoph Reller]

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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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