how do i export jpg from wmv?

[BringItAroundTown]

I have read that I *should be able to export a jpg from a wmv using convert video.wmv stills-%d.jpg.
When i first tried this i got a error saying: convert: no decode delegate for this image format.
After someone said i should add a entry to coder.xml of <coder magick="WMV" name="MPEG"/>

After i added that i stopped getting the error but it just sits there forever.
Nothing ever happenes.
So is there please a way i can configure or update my ImageMagick to export a thumb from a wmv. Thanks.

[BringItAroundTown]

Is there any reason why no one is even reading this?
Is there more info I can provide that will help get my question answered?

[fmw42]

It is not that no one is reading this. But likely we do not know the answer. I can give you some tips, but I have never used wmf.

I believe that you may need to install the delegate library (libwmf) for it and possibly enable it in your configuration.

see
http://www.imagemagick.org/download/delegates/
http://www.imagemagick.org/script/advan ... lation.php

[BringItAroundTown]

I believe i have the package for wmf. My question was regarding the WMV format though.
I wasn't aware those two were related.

when i run identify -list format, wmf is listed in there. wmv is not.

[fmw42]

what do you get from

convert -list configure

see line starting with DELEGATES. That tells you what IM actually finds in its configuration.

The list you are looking at only says what is compatible with IM.

[BringItAroundTown]

this is what gets returned for delegates when i ran convert -list configure
DELEGATES bzlib djvu fontconfig freetype gvc jpeg jp2 lcms openexr png rsvg tiff wmf x11 xml zlib

[fmw42]

I believe i have the package for wmf. My question was regarding the WMV format though.
I wasn't aware those two were related.

when i run identify -list format, wmf is listed in there. wmv is not.

I see

WMV MPEG rw+ Windows Media Video


But I have no idea whether or where to find or enable wmv delegate? What IM version are you using. Perhaps an upgrade is in order?

[anthony]

convert -list delegate

or look for the delegate.xml file the location of which is also listed by the above command.

[BringItAroundTown]

convert -list delegate

or look for the delegate.xml file the location of which is also listed by the above command.

Path: /usr/lib/ImageMagick-6.3.7/config/delegates.xml

Delegate Command
-------------------------------------------------------------------------------
cgm => "ralcgm" -d ps -oC < "%i" > "%o" 2> "%u"
dng:decode => "ufraw-batch" --silent --wb=camera --black-point=auto --exposure=auto --create-id=also --out-type=ppm16 "--output=%u.pnm" "%i"
eps<=>pdf "gs" -q -dQUIET -dPARANOIDSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 "-sDEVICE=pdfwrite" "-sOutputFile=%o" "-f%i"
eps<=>ps "gs" -q -dQUIET -dPARANOIDSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=0 "-sDEVICE=pswrite" "-sOutputFile=%o" "-f%i"
fig => "fig2dev" -L ps "%i" "%o"
gplt => "echo" "set size 1.25,0.62 set terminal postscript portrait color solid; set output "%o"; load "%i"" > "%u";"gnuplot" "%u"
hdr => "ra_pfm" "%i" "%o"
hpg => "hp2xx" -q -m eps -f `basename "%o"` "%i" mv -f `basename "%o"` "%o"
hpgl => "if [ -e hp2xx -o -e /usr/bin/hp2xx ]; then hp2xx -q -m eps -f `basename "%o"` "%i" mv -f `basename "%o"` "%o else echo "You need to install hp2xx to use HPGL files with ImageMagick." exit 1 fi"
htm => "html2ps" -U -o "%o" "%i"
html => "html2ps" -U -o "%o" "%i"
https => "curl" -s -k -o "%o" "https:%M"
ilbm => "ilbmtoppm" "%i" > "%o"
man => "groff" -man -Tps "%i" > "%o"
pdf<=>eps "gs" -q -dQUIET -dPARANOIDSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=0 "-sDEVICE=epswrite" "-sOutputFile=%o" "-f%i"
pdf<=>ps "gs" -q -dQUIET -dPARANOIDSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=0 "-sDEVICE=pswrite" "-sOutputFile=%o" "-f%i"
pic => "ra_pfm" "%i" "%o"
pnm<= ilbm "ppmtoilbm" -24if "%i" > "%o"
pnm<= launch "gimp" "%i"
pov => "povray" "+i%i" -D0 +o"%o" +fn%q +w%w +h%h +a -q9 -kfi"%s" -kff"%n" "convert" -concatenate "%o*.png" "%o"
ps<=>eps "gs" -q -dQUIET -dPARANOIDSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=0 "-sDEVICE=epswrite" "-sOutputFile=%o" "-f%i"
ps<=>pdf "gs" -q -dQUIET -dPARANOIDSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=0 "-sDEVICE=pdfwrite" "-sOutputFile=%o" "-f%i"
ps<= print "lpr "%i"
rad => "ra_pfm" "%i" "%o"
rgba<= rle "rawtorle" -o "%o" -v "%i"
scan => "scanimage" -d "%i" > "%o"
shtml => "html2ps" -U -o "%o" "%i"
svg => "wmf2eps" -o "%o" "%i"
txt<=>ps "enscript" -o "%o" "%i"
wmf => "wmf2eps" -o "%o" "%i"

is the response i get from your command. i do not see wmv either. what do i need to add to get it there?

[fmw42]

6.3.7 is very very old (170 versions old). I suggest that you seriously consider upgrading.

[BringItAroundTown]

ok sysadmin upgraded imagemagick and now i get his error:


convert: Delegate failed `"ffmpeg" -v -1 -vframes %S -i "%i" -vcodec pam -an -f rawvideo -y "%u.pam" 2> "%Z"' @ delegate.c/InvokeDelegate/1032.
convert: unable to open image `/tmp/magick-XXjyWkG4.pam': No such file or directory @ blob.c/OpenBlob/2480.

[fmw42]

have you installed the ffmpeg delegate?

see this related post viewtopic.php?f=1&t=13650&p=48394&hilit=ffmpeg#p48394

[BringItAroundTown]

Well this imagemagick video covnersion is turning out to be a pain in the butt.
We installed ffmpeg to make it work but then running convert gave segmentation fault.
I was hoping getting aorund having to use ffmpeg anyway. So since we had to install it nayway I am using that to do what i want and it worked great the first try and i will be using it to generate the video thumbs i need.

As for the poster that supplied all that info for the other video converter, this is gonna be a part of an automated system so need something to run command line.