Thank you all for your support. After downloading the latest Qt online.run file for linux, I could not get the Ubuntu laucher to accept the file. I did not try to build Qt5. But I did try out many of the Qt demos as well as Showcase demos. All worked fine including those involving videos.
Of course, changing my default video player did not help. On Mon, May 2, 2016 at 7:44 PM bill lam <[email protected]> wrote: > Certainly linux supports playing mp4 but jqt for linux is built against an > older version of Qt (4.8) because some linux boxes out there do not support > Qt 5. This is an issue of Qt libraries only. > > One can also build jqt against Qt 5.4 from source. > On May 3, 2016 3:19 AM, "Raul Miller" <[email protected]> wrote: > > > Oops, I was sloppy and missed that linux was involved. > > > > Under linux you're probably at the mercy of the installed handlers for > > MIME types and whatever overrides have been installed. > > > > See https://wiki.debian.org/MimeTypesSupport (and linked pages) for > > example, for the basics, then something like > > https://wiki.archlinux.org/index.php/default_applications for how that > > might play out, in terms of config files. > > > > Linux is getting to be almost as bad (or almost as good, depending on > > your perspective) as Windows for this kind of thing... > > > > -- > > Raul > > > > > > On Mon, May 2, 2016 at 3:05 PM, robert therriault <[email protected] > > > > wrote: > > > Thanks Raul, > > > > > > I suppose that is possible, but I would have thought that Linux would > > have a way of dealing with .mp4 files. The error of not finding a > > multimedia control in labsel makes me think that it is looking in the lab > > selection form for the videoviewer controls. This is why I suspect a > > 'ghost' form, but I appreciate your suggestion as it introduces other > > possibilities. > > > > > > Cheers, bob > > > > > >> On May 2, 2016, at 11:49 AM, Raul Miller <[email protected]> > wrote: > > >> > > >> Is there a chance that the video viewer has an OS requirement? (Like > > >> maybe windows media player needs to be installed?) > > >> > > >> Thanks, > > >> > > >> -- > > >> Raul > > >> > > >> > > >> On Mon, May 2, 2016 at 2:47 PM, robert therriault < > > [email protected]> wrote: > > >>> Hi Robert and much thanks for letting me know about the issue you > > found. > > >>> > > >>> Could you run wdforms '' in the terminal window and let me know what > > you find? That should indicate whether there are any 'ghost' forms that > may > > be crossing things up and may be a clue to the source of the bug. Another > > option would be to restart the jqt session and see if the problem > persists. > > If it does then 'ghost' forms would not be an issue. > > >>> > > >>> These are my specs on my system, which is running fine. > > >>> > > >>> Engine: j804/j64/darwin > > >>> Release: commercial/2015-12-21 18:06:25 > > >>> Library: 8.04.15 > > >>> Qt IDE: 1.4.9/5.4.2 > > >>> Platform: Darwin 64 > > >>> Installer: J804 install > > >>> > > >>> The difference that I see other than the platform is the Qt IDE > > version of 1.4.9/5.4.2 Perhaps Chris or Bill could suggest whether there > > should be different versions across different platforms. > > >>> > > >>> Cheers, bob > > >>> > > >>>> On May 2, 2016, at 11:20 AM, Robert Cyr <[email protected]> > wrote: > > >>>> > > >>>> On my Ubuntu 15.10 PC, running on a Haswell Core I-5-4570 with 8 > GiB. > > >>>> > > >>>> j804/j64/linux ,Release: commercial/2015-12-28 10:47:03 Library: > > 8.04.15, > > >>>> Qt IDE: 1.4.10/4.8.6, Platform: Linux 64, Installer: J804 install. > > >>>> > > >>>> > > >>>> I get this error message: > > >>>> > > >>>> > > >>>> *error in: labsel_ok_button* > > >>>> > > >>>> > > >>>> *cc : child not supported: multimedia video* > > >>>> > > >>>> * wd * > > >>>> > > >>>> > > >>>> * (LF,~wd ::(''"_)'qer') (13!:8)3 * > > >>>> > > >>>> > > >>>> > > >>>> > > >>>> On Sun, Apr 17, 2016 at 5:10 PM robert therriault < > > [email protected]> > > >>>> wrote: > > >>>> > > >>>>> Murray, > > >>>>> > > >>>>> I have updated the video viewer for the labs to include an option > to > > >>>>> increase the size of the video viewing window if you have access > to a > > >>>>> larger screen. If you update the the video viewer from the package > > manager, > > >>>>> you should see radio buttons down the left size of the screen that > > allow > > >>>>> you to select different sizes. > > >>>>> > > >>>>> Cheers, bob > > >>>>> > > >>>>>> On Mar 10, 2016, at 1:57 PM, Murray Eisenberg < > > [email protected]> > > >>>>> wrote: > > >>>>>> > > >>>>>> Is there some way to enlarge the video viewing window? > > >>>>>> > > >>>>>> On my 27” screen, the video is much too small for comfortable > > viewing. > > >>>>>> > > >>>>>> Most every video viewer I know allows such magnification. But I > > don’t > > >>>>> see any control here to do that, and the entire surrounding window > > will not > > >>>>> resize by dragging any edge or corner. > > >>>>>> > > >>>>>> > > >>>>>>> On Wed 9 Mar 2016 14:59:19 -0800,robert therriault < > > >>>>> [email protected] <mailto:[email protected]>> wrote: > > >>>>>>> > > >>>>>>> > > >>>>>>> ...For the last couple of months I have been working on creating > a > > >>>>> video version for J labs within the jqt environment. > > >>>>>>> > > >>>>>>> As a preview of coming attractions, I have made a video run > > through of > > >>>>> the lab and you can watch it here. https://youtu.be/vJ1i-XzU56E < > > >>>>> https://youtu.be/vJ1i-XzU56E> Make sure you watch it in the HD > > version > > >>>>> as standard definition does not do justice to text videos. > > >>>>>>> > > >>>>>>> The addon for videolabs 1.0.0 itself is now available for > > downloading > > >>>>> through Package Manager under the category of media/videolabs. It > > requires > > >>>>> you to be running j804 on the jqt platform in 64 bit mode. Joe > > Bogner has > > >>>>> run it on Windows and I have run it on the Mac and while I know > that > > video > > >>>>> is not supported for Android in jqt, other platforms should be > fine. > > >>>>>>> > > >>>>>>> When downloaded you should see a new lab entered in the 'Addons' > > >>>>> category of labs entitled 'Video Introduction to Labs'. Selecting > > that lab > > >>>>> should result in a message box display letting you know that the > > first time > > >>>>> you look at this lab that you will need to be connected to the > > internet for > > >>>>> about an 8 Mb download of video resources. These files will be > > stored in > > >>>>> the ~user/videolabs/Video_Introduction_to_Labs folder (don't worry > > the > > >>>>> download creates that folder) and should take less than a minute > > with a > > >>>>> decent internet connection. If you choose not to download, another > > message > > >>>>> box coms up letting you know that that lab will not run reliably > > without > > >>>>> the videos so that you should select a different lab. This process > > was done > > >>>>> so that large numbers of video files are not downloaded during the > > original > > >>>>> creation of a lab, but only if the viewer wishes to see a > particular > > lab. > > >>>>>>> > > >>>>>>> Once you have completed the download the first page of the lab > will > > >>>>> appear with the video viewer minimized in the upper left corner. > > Advancing > > >>>>> the lab is all that you need to do to go through the videos for > each > > >>>>> section and they should play automatically. The videos are in .mp4 > > format > > >>>>> and so should play on a variety of machines. If the videos do not > > playback > > >>>>> for you, let me know the JVERSION you are working with and the type > > of > > >>>>> machine you are using and I will work on some fixes. Fingers > crossed > > that > > >>>>> this will work for you….. > > >>>>>>> > > >>>>>> > > >>>>>> —— > > >>>>>> Murray Eisenberg > > [email protected] > > >>>>>> Mathematics & Statistics Dept. > > >>>>>> Lederle Graduate Research Tower phone 240 246-7240 (H) > > >>>>>> University of Massachusetts > > >>>>>> 710 North Pleasant Street > > >>>>>> Amherst, MA 01003-9305 > > >>>>>> > > >>>>>> > > >>>>>> > > >>>>>> > > >>>>>> > > ---------------------------------------------------------------------- > > >>>>>> For information about J forums see > > http://www.jsoftware.com/forums.htm > > >>>>> > > >>>>> > > ---------------------------------------------------------------------- > > >>>>> For information about J forums see > > http://www.jsoftware.com/forums.htm > > >>>> > ---------------------------------------------------------------------- > > >>>> For information about J forums see > > http://www.jsoftware.com/forums.htm > > >>> > > >>> > ---------------------------------------------------------------------- > > >>> For information about J forums see > http://www.jsoftware.com/forums.htm > > >> ---------------------------------------------------------------------- > > >> For information about J forums see > http://www.jsoftware.com/forums.htm > > > > > > ---------------------------------------------------------------------- > > > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
