Hi all,

I just tested the command lines with a Mac... There must be a mistake 
somewhere, but it is quite encouraging.

 * I used a copy of the tutorial of OpenMeetings Installation by Alvaro (16 
pages), and put it into a directory "Test". I renamed it OpenMeet.pdf to 
(preventively) avoid some undesirable effects of spaces or long names.
 * I launched a console and cd into this directory.
 * I typed following command:
convert -density 125 OpenMeet.pdf + profil '*' -quality 100 page-%04d.png
  * I got following errors:
convert: unable to open image '+': No such file or directory @ 
error/blob.c/OpenBlob/3485.
convert: no decode delegate for this image format `' @ 
error/constitute.c/ReadImage/556.
convert: unable to open image 'profil': No such file or directory @ 
error/blob.c/OpenBlob/3485.
convert: unable to open image 'profil': No such file or directory @ 
error/blob.c/OpenBlob/3485.
convert: no decode delegate for this image format `' @ 
error/constitute.c/ReadImage/556.
 * BUT I've got now 32 new png-files, numerotated 0000 to 0035. The files 
page-0000.png and page-0015.png correspond to the first page of the PDF file.

--> I guess that ImageMagick works, but that there is some problem with the 
options in the command lines.

Hope this helps...
Xavier

________________________________
De : Maxim Solodovnik <solomax...@gmail.com>
Envoyé : jeudi 11 juillet 2019 09:44
À : Openmeetings user-list
Objet : Re: conversion problem during update

the page seems to correct

On Thu, 11 Jul 2019 at 14:42, Xavier M <xa...@hotmail.com> wrote:
>
> Just to check for step 1, due to the way it is written: do I follow the 
> instructions here?
> https://imagemagick.org/script/download.php#macosx
>
>
>
> ________________________________
> De : Maxim Solodovnik <solomax...@gmail.com>
> Envoyé : jeudi 11 juillet 2019 09:33
> À : Openmeetings user-list
> Objet : Re: conversion problem during update
>
> Steps:
> 1) Install ImageMagic
> 2) create empty folder, cd into this folder, put any PDF file to it
> Using terminal/console app
> 3) run
> `PATH_TO_IMAGIC_BIN/convert -density 125 NAME_OF_PDF.pdf +profile
> '*' -quality 100 page-%04d.png`
>
> should be no errors
> (NOTE PDF conversion might be blocked in ImageMagic policy.xml file)
>
> On Thu, 11 Jul 2019 at 14:29, Xavier M <xa...@hotmail.com> wrote:
> >
> > Hi,
> >
> > I'm a Mac user at work - be aware that it is not a server on the web. I do 
> > not fully understand the point, but if you detail me the steps, I can maybe 
> > help? I'll find time to do on Monday or Tuesday.
> >
> > Xavier
> >
> > ________________________________
> > De : Peter Dähn <da...@vcrp.de>
> > Envoyé : jeudi 11 juillet 2019 09:13
> > À : user@openmeetings.apache.org
> > Objet : Re: conversion problem during update
> >
> > I will ask MAC user around here...
> >
> > Am 11.07.19 um 08:32 schrieb Maxim Solodovnik:
> > > I can test it on Windows
> > > Not on Mac :(
> > >
> > > should be easy:
> > > 1) install ImageMagic
> > > 2) run command
> > > 3) report back :)
> > >
> > > Are there any volunteers?
> > >
> > > On Thu, 11 Jul 2019 at 13:29, Peter Dähn <da...@vcrp.de> wrote:
> > >> you are right... I simply try to keep it in mind... Maybe updates to
> > >> 5.0.x will be done by moving to a new server. I think complete migration
> > >> with conversion etc. will to be tested by more admins... ;-)
> > >>
> > >> Greetings Peter
> > >>
> > >> Am 11.07.19 um 08:17 schrieb Maxim Solodovnik:
> > >>> Actually this is "one minute task" BUT
> > >>> Someone need to test it using Win and Mac (I guess it will work on 
> > >>> Linux)
> > >>>
> > >>> On Thu, 11 Jul 2019 at 13:15, Peter Dähn <da...@vcrp.de> wrote:
> > >>>> Hi Maxim,
> > >>>>
> > >>>> seems to be. Does it hurt to add that parameter anyway?
> > >>>>
> > >>>> Greetigs Peter
> > >>>>
> > >>>> Am 11.07.19 um 07:17 schrieb Maxim Solodovnik:
> > >>>>> No answers for a long time
> > >>>>> I guess this one is not a common problem
> > >>>>>
> > >>>>> On Mon, 3 Jun 2019 at 13:44, Peter Dähn <da...@vcrp.de> wrote:
> > >>>>>> Hi Maxim,
> > >>>>>>
> > >>>>>> you are right, to add this would help, if it is a common problem.
> > >>>>>>
> > >>>>>> This is a really old file. It seems that it was already a pdf-file.
> > >>>>>> Original content of the folder was
> > >>>>>>
> > >>>>>> HASH.pdf, HASH.swf, library.xml and for each page of the pdf a
> > >>>>>> _thumb_page-XXXX.jpg.
> > >>>>>>
> > >>>>>> Greetings Peter
> > >>>>>>
> > >>>>>> Am 31.05.19 um 18:39 schrieb Maxim Solodovnik:
> > >>>>>>> Hello Peter,
> > >>>>>>>
> > >>>>>>> I guess you propose to add "profile" param to OM code :)
> > >>>>>>> I'm OK with it, could you check if your original document is being
> > >>>>>>> converted by OM UI as expected or not?
> > >>>>>>>
> > >>>>>>> On Fri, 31 May 2019 at 20:03, Peter Dähn <da...@vcrp.de> wrote:
> > >>>>>>>> Hi Maxim,
> > >>>>>>>>
> > >>>>>>>> I needed to convert some room files afterwards. I user command out 
> > >>>>>>>> of
> > >>>>>>>> the logs and got for some files an error.
> > >>>>>>>>
> > >>>>>>>> /usr/bin/convert -density 125
> > >>>>>>>> /SERVER/webapps/openmeetings/data/upload/files/HASH/HASH.pdf 
> > >>>>>>>> -quality
> > >>>>>>>> 100 
> > >>>>>>>> /SERVER/webapps/openmeetings/data/upload/files/HASH/page-%04d.png
> > >>>>>>>>
> > >>>>>>>> convert: profile 'icc': 'RGB ': RGB color space not permitted on
> > >>>>>>>> grayscale PNG
> > >>>>>>>> `/SERVER/webapps/openmeetings/data/upload/files/HASH/page-%04d.png'
> > >>>>>>>>  @
> > >>>>>>>> warning/png.c/MagickPNGWarningHandler/1654.
> > >>>>>>>>
> > >>>>>>>> I needed to add parameter +profile '*' . Now convert is working 
> > >>>>>>>> without
> > >>>>>>>> error.
> > >>>>>>>>
> > >>>>>>>> /usr/bin/convert -density 125
> > >>>>>>>> /SERVER/webapps/openmeetings/data/upload/files/HASH/HASH.pdf 
> > >>>>>>>> +profile
> > >>>>>>>> '*' -quality 100
> > >>>>>>>> /usr/lib/red5/webapps/openmeetings/data/upload/files/HASH/page-%04d.png
> > >>>>>>>>
> > >>>>>>>> Greetings Peter
> > >>>>>>>>
> > >>>>>>>> Am 15.05.19 um 13:15 schrieb Peter Dähn:
> > >>>>>>>>> Hi,
> > >>>>>>>>>
> > >>>>>>>>> I had a little problem during the last update (from 3.0.7 to 
> > >>>>>>>>> 4.0.8). I
> > >>>>>>>>> didn't realise, that ffmpeg didn't work after server update. The
> > >>>>>>>>> following om update went throug, despite the fact, that
> > >>>>>>>>> screen-recordings were not converted.
> > >>>>>>>>>
> > >>>>>>>>> That why I needed to figure out (with a little bit help of Maxim) 
> > >>>>>>>>> how to
> > >>>>>>>>> manage that afterwards. I would like to share my steps, in case 
> > >>>>>>>>> someone
> > >>>>>>>>> has a similar problem.
> > >>>>>>>>>
> > >>>>>>>>> 1. Get needed information from database (in my case it is 
> > >>>>>>>>> postgres)
> > >>>>>>>>>
> > >>>>>>>>>  select id,hash from om_file where deleted=false and 
> > >>>>>>>>> type='Recording'
> > >>>>>>>>> and dtype='Recording' order by id;
> > >>>>>>>>>
> > >>>>>>>>> 2. save the result in a text file e.g. convert_recordings.txt
> > >>>>>>>>>
> > >>>>>>>>> 3. prepare a little script (linux/bash)
> > >>>>>>>>>
> > >>>>>>>>> #!/bin/bash
> > >>>>>>>>> i=0
> > >>>>>>>>> while read line
> > >>>>>>>>> do
> > >>>>>>>>>    #echo "$line"
> > >>>>>>>>>    id=`echo $line | awk '{split($0, a, "|"); print a[1]}'`
> > >>>>>>>>>    #echo $id
> > >>>>>>>>>    hash=`echo $line | awk '{split($0, a, "|"); print a[2]}'`
> > >>>>>>>>>    #echo $hash
> > >>>>>>>>> #   echo "bearbeite $id"
> > >>>>>>>>>    command_mp4="/usr/local/bin/ffmpeg -y -nostdin -i
> > >>>>>>>>> /OM_OLD_DIR/webapps/openmeetings/data/streams/hibernate/flvRecording_$id.avi
> > >>>>>>>>> -c:v h264 -crf 24 -pix_fmt yuv420p -preset medium -profile:v 
> > >>>>>>>>> baseline
> > >>>>>>>>> -level 3.0 -movflags faststart -c:a aac -ar 22050 -b:a 32k
> > >>>>>>>>> /OM_DIR/webapps/openmeetings/data/streams/hibernate/$hash.mp4"
> > >>>>>>>>> #   echo $command_mp4
> > >>>>>>>>>    command_png="/usr/local/bin/ffmpeg -y -nostdin -i
> > >>>>>>>>> /OM_DIR/webapps/openmeetings/data/streams/hibernate/$hash.mp4 -vf
> > >>>>>>>>> thumbnail,scale=640:-1 -frames:v 1
> > >>>>>>>>> /OM_DIR/webapps/openmeetings/data/streams/hibernate/$hash.png"
> > >>>>>>>>> #   echo $command_png
> > >>>>>>>>>    $command_mp4
> > >>>>>>>>>    $command_png
> > >>>>>>>>> done < convert_recordings.txt
> > >>>>>>>>>
> > >>>>>>>>> 4. wait a looooong time (I had over 500 videos)
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>> Maybe ffmpeg command is a bit different for other versions.
> > >>>>>>>>>
> > >>>>>>>>> Greetings Peter
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>>
> > >>
> > >
> >
>
>
> --
> WBR
> Maxim aka solomax



--
WBR
Maxim aka solomax

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