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
