MythLogBot@irc.freenode.net :: #mythtv

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aloril, Anssi, benklop, blahdodo, brfransen, ChanServ, clever, CyberJacob, davic, dekarl, eharris, ElmerFudd, enyc, frobnic, ghoti, gigem, GreyFoxx, hampton, Hydr0p0nX, ijc, ikevin, J-e-f-f-A, jpabq, jya, kwizart, libsci, mad_enz, markspieth, markspieth2, MitchCapper, MythBuild, MythLogBot, MythNotifyBot, nephyrin`, Panic, peper03, pppingme, rhpot199`, Simon--, sphery, taylorr, tonsofpcs, tris, Warped, XDS2010|AFK, _charly_, Roklobster, knowledg1junkie, mrec_, ooshlablu, jpharvey, amessina, Tobbe5178, dblain, Chutt_, ramshadow, jheizer_, tgm4883
Tuesday, February 27th, 2018, 01:51 UTC
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[09:44:12] SteveGoodey: tgm4883: Hello, seems that Mythbuntu 16.04 MythTV V29 fixes nightly build are not updating? Mythtv commits fixes/29 shows one 3 days ago, 25th Feb.
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[13:44:50] hdt551: I have Debian stretch installed and am trying to compile mythtv fixes/29
[13:44:50] hdt551: when I run ./configure for mythtv I get "ERROR: cannot find taglib 1.7 or later"
[13:45:09] hdt551: n Synaptic my only choice is libtag1v5 which apparently is not good enough.
[13:45:09] hdt551: I have tried to find a newer version but it does not seem to be available.
[13:45:24] hdt551: I thought mythtv development was done using debian but maybe they do not necessarily use standard packages and I may need to compile a newer version of libtag myself?
[13:47:27] stuarta: run the ansible playbooks at https://github.com/MythTV/ansible and that'll install what you need
[13:50:11] hdt551: stuarta: I don't know what ansible is but I will give it a try. Thank you.
[13:50:15] stuarta: run the qt5 playbook
[13:50:54] SteveGoodey: stuarta: I sent an irc to tgm 4883 about mythbuntu v29 nightly builds not updating. Not sure if he's on here much. is there a way of contacting him direct?
[13:51:15] stuarta: SteveGoodey: yes, and he should wake up soon, he's NA based
[13:51:27] stuarta: lemme pm you his email
[13:51:53] stuarta: done
[13:53:29] stuarta: anyone remember which version we switched to qt5 in???
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[14:06:30] hampton: The latest 0.27 configure requires Qt4.8 or better, and the latest 0.28 configure requires 5.2 or better.
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[14:55:58] stuarta: thought it was 0.28 that was qt5
[14:56:13] stuarta: i've been non specific in the ansible readme, and that'll do for now
[14:57:02] stuarta: i've just noticed that the nvidia card in my new laptop, is also correctly reporting via vaapi using the vdpau backend for vaapi
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[15:08:07] peterbennett: Ticket #13220 is from somebody who is using qt4.8 with MythTV 29. apparently that is what you get with Ubuntu trusty .
[15:08:07] ** MythLogBot http://code.mythtv.org/trac/ticket/13220 **
[15:08:33] peterbennett: stuarta: ^^^
[15:09:43] peterbennett: stuarta: My experience is that vaapi with nvidia card using vaapi to vdpau does not work well at all. Everything gets distorted.
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[15:34:19] stuarta: peterbennett: we don't support trusty, trusty is 14.04, our target is latest LTS which is Xenial (16.04)
[15:36:53] stuarta: peterbennett: i think i'll try it out of curiosity, but stick with vdpau (one of the reasons i got this laptop)
[15:43:45] peterbennett: stuarta: I think trusty is supported by Ubuntu until April 2019. I suppose Mythbuntu should not be building version 29 for trusty.
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[16:07:39] stuarta: yes ubuntu will support it
[16:10:33] stuarta: but we've decided to target latest lts only
[16:10:45] stuarta: tbh, i don't think we've actually removed any qt4 code
[16:11:16] hampton: I did in master, but none of those changes were backported.
[16:11:23] stuarta: which is correct
[16:11:36] stuarta: master won't go into ubuntu LTS until 20.04
[16:13:07] stuarta: by which time 14.04 should be EOL
[16:13:15] hampton: two years is a long time...
[16:13:39] stuarta: we have been known to go more than 2 years without a release
[16:13:53] stuarta: now sync'd to ubuntu releases so it's a bit more logical
[16:49:16] hampton: I just read an article about the kernel devs discussing what minimum compiler version they require. Do we require a minimum version of gcc or clang, or just say it must support C++11?
[16:50:08] stuarta: don't think we are specifically using c++11
[16:50:13] stuarta: i might be wrong
[16:50:36] hampton: I think I saw it in configure (or some other file)
[16:50:45] stuarta: entirely possible
[16:52:37] hampton: Its in settings.pro: CONFIG += c++11
[16:53:22] stuarta: :)
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[20:32:23] stuarta: peterbennett: so tried vaapi with vdpau backend, colours were fine, just looks zoomed to the top left of the content, saw about a quarter of the actual image
[20:33:21] peterbennett: stuarta: The image sized wrong and wrong aspect ratio
[20:34:09] stuarta: probably wrong aspect, hard to tell when so much of the image was missing
[20:34:17] peterbennett: stuarta: Not useful to watch a movie with only a quarter of the picture showing and stretched.
[20:34:22] stuarta: nope
[20:34:50] stuarta: but it's certainly not a priority on anybody's list
[20:34:51] jheizer_: haha
[20:35:14] peterbennett: I messed around with it a bit and gave up – use vdpau on nvidia systems
[20:35:20] stuarta: i have proper vdpau, so i insist that i use it via vaapi! – hah!
[20:35:27] stuarta: that would be plain stupid
[20:48:44] gigem: stuarta: After you've got that working, make it work in a VM!
[20:59:47] stuarta: hah, i'd rather spend some time getting vaapi to work correctly under wayland, and / or work out how the hell to use ffmpeg's hwaccel api
[21:06:32] MythBuild: build #2534 of master-fedora-32bit is complete: Success [3build successful] Build details are at http://code.mythtv.org/buildbot/builders/mast . . . /builds/2534
[21:07:43] gigem: All right, go ahead with that. I do want you to understand hwaccel for when we try mediacode on Android.
[21:09:33] stuarta: i've put an nvidia shield on my "one day" shopping list
[21:11:03] stuarta: ah yes, i need to do the migration of code.mythtv.org sooner rather than later
[21:11:20] stuarta: have to run through the upgrade steps again to double check
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[22:44:46] stuarta: peterbennett: markspieth2 gigem jpabq in the longer term does it make any sense to get rid of legacy XVideo stuff?
[22:45:13] stuarta: i mean Qt can happily revert to it's own painter, which would work regardless
[22:45:27] ** stuarta wanders off **
[22:45:39] jpabq: stuarta: Yes. The only time I ever use it, is when remote logging into a system to check a problem.
[22:46:08] peterbennett: You can still play videos using xvideo so maybe useful for emergency fallback
[22:46:33] markspieth2: I still use xvideo playback because it works. I would prefer that it not be taken out.
[22:46:37] stuarta: i only use it when i ssh to the backend and run setup within an Xnest screen
[22:46:55] stuarta: markspieth2: fair enough
[22:47:04] peterbennett: I had until recently a laptop with broken OpenGL that could only play with xvideo
[22:47:07] stuarta: tbh it's probably quite a bit of work to remove it cleanly
[22:52:32] peterbennett: I vote to keep it
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[23:46:42] gigem: Does anyone remember what issues Mark Kendall had with xvideo? ISTR, it caused some major compromises in the videoout handling. I know he wasn't very happy when it was decided to keep it. Maybe he eventually found a work around that made it not so bad.

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