MythLogBot@irc.freenode.net :: #mythtv

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Sunday, January 6th, 2019, 00:10 UTC
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[00:36:54] markspieth: I have pushed an updated configure. Hopefully I havent broken anything. Now to see what libass is (not) doing.
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[02:40:33] gigem: peterbennett, markspieth: It wasn't too much trouble for a potentially, brilliant idea. Uninstall libass-dev, configure libass with --disable-fontconfig --disable-require-system-font-provider, make, make install and build mythtv. Voila, no subtitles. Hopefully, it's the same issue as on Android and whole lot easier to debug on Linux. That will have to wait, though, football playoffs await.
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[06:52:00] markspieth2: I will see if I can get fontconfig to build.
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[16:00:34] mark____: warpme_: does anything break if you just don't use webkit?
[16:00:56] mark____: apart from the obvious ui elements
[16:04:21] hampton: I looked briefly at that and iirc there's a hook in mythfrontend, a file in libmythui(?) and a bunch of stuff in the plugins directory. mythbrowser, of course, but also stuff in mythmusic, mythnewsreader, etc.
[16:07:18] hampton: I didn't spend any time figuring out how to cut it out of the compile. I was just looking at the effort to convert to the newer web widgets.
[16:08:26] warpme_: mark____: honestly speaking I don?t know (beside configure exits with error: ?webkit missing. Extiting now...?
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[16:12:17] warpme_: hampton: is there chance to restore verbosity in systemd logging in mythbackend to state before logging daemon removal? Currently loging with ?general? and log level ?info? gives me like this: ?Jan 05 16:09:09 mythtv mythbackend[10600]: 2019-01–05 16:09:09.845029 C mythcommandlineparser.cpp:2609:ConfigureLogging Qt version: compile: 5.5.1, runtime: 5.5.1?
[16:13:23] warpme_: You see date info is doubled. also sources code line info is present while previously it was only logged when log level was ?debug?.
[16:14:32] hampton: Sure, I'll take a look at it tomorrow.
[16:15:31] warpme_: As systemd jurnal is limited size for all processes – extensive logging info from one process makes other proceses logs dissapearing quicker...
[16:15:45] warpme_: thx!
[16:39:13] hampton: warpme_: What version of Qt are you using to compile on osx?
[16:39:24] warpme_: 5.11.2
[16:39:47] hampton: Does that still have qtwebkit?
[16:41:09] warpme_: no. for workarround – pls see readme in my osx-script git (https://github.com/warpme/mythv-osx-build-script)
[16:41:19] hampton: ok
[16:41:21] ** hampton wants to bump the minimum Qt to 5.7.0, but doesn't want to break anything. **
[16:41:55] warpme_: oh pls not 5.7. I have my production be with os having 5.5.1
[16:48:37] hampton: You must be running Ubuntu 16.04. From what I understand, that's officially unsupported now. I can hold off on bumping the version, but at some point we should drop support in the code.
[16:50:06] hampton: I could commit the patch to bump 5.3 -> 5.5 which would stop master from compiling on jessie, while leaving 16.04 working. The 5.5 ->5.7 bump could come later.
[16:56:34] hampton: LOL. My production backend is also running 16.04.
[17:01:41] warpme_: guys – are plans to include #12809? this is REALLY nice enhacement...
[17:01:56] warpme_: i mean include in v30
[17:03:01] hampton: warpme_: btw, that contents of that link appear to have a goof. It says: "You may simple copy QtWebKit/QtWebKitWidgets related files from , <mkspecs/modules> and to relevant dirs in Qt5.11.1 install.)" What's the ", <mkspecs/modules>" supposed to be?
[17:03:49] ** hampton is currently trying to compile on osx using brew for installing libraries. **
[17:07:47] mark____: warpme_: I thought qt rejected libraries compiled for different versions – or is that just plugins?
[17:09:11] mark____: I guess the bigger question is – what's the plan for QtWebKit replacement... we can't expect packagers to start pulling in old library versions.
[17:09:17] warpme_: hampton: here is list of dirs/files I used for copying qt5.5.1 webkit to qt5.11: https://pastebin.com/HuG5Ys0D
[17:09:50] warpme_: this is output of ls -R1 so sorry for not so nice format
[17:10:20] hampton: thanks
[17:12:23] hampton: We also need to migrate from Quicktime to the newer AVFoundation and AVKit.
[17:12:30] warpme_: mark____: indeed also i was affraid of this. I just tried with 5.5.1 webkit and 5.11.2 missmath and discover it works ok without any errors/complains (atleat I can?t see any issues). so I stay with this hack as this saves me huge pain of building webkit from sources...
[17:13:12] warpme_: this is for osx. for minimyth2 I?m building webkit....
[17:14:36] hampton: webkit is not just a mac issue. If/when the Qt Company (aka Trolltech) drops webkit (from qt6?) its going to be an issue on all platforms.
[17:16:27] ** hampton wanders off to finish taking down Christmas decorations. **
[17:25:38] mark____: hampton: I thought webkit was dropped after 5.5? i.e. no longer appears in 5.6
[17:27:46] mark____: hampton: are we using quicktime?
[17:29:21] warpme_: mark____: also I think webkit was dropped since 5.6 (infact it was replaced by webengine or something...)
[17:29:55] mark____: well it certainly isn't in 5.10:)
[17:34:26] hampton: I still see the qweview.h header file on all my linux/freebsd builders. Even arch at Qt5.12 has the header.
[17:35:11] hampton: qwebview.h
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[17:38:32] mark____: http://blog.qt.io/blog/2016/03/16/qt-5-6-released/
[17:39:02] mark____: is vague
[17:45:34] mark____: peterbennett: https://pastebin.com/RKShXtzr
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[17:46:39] mark____: this is the patch I've been testing for vaapi stream changes. it does the job but there is a weird side effect. video playback does not exit if the stream has changed when using vaapi.
[17:46:41] peterbennett: mark____: Thanks, I will try that on android
[17:47:25] peterbennett: mark____: will that be relevant to android UYVY slowness?
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[17:50:50] mark____: no -this is just vaapi. I'm going to work up something for opengl later. though to be honest I can't currently see a solution that meets all requirements – the old UYVY was the best performer but I simply can't get around the precision issue (on android)
[17:51:33] peterbennett: mark____: The precision was fine for Shield and Fire 4K – those support high precision.
[17:52:22] peterbennett: mark____: The precision caused problem on Fire (non-4K) – but this has other problems anyway and is not currently usable
[17:53:21] mark____: peterbennett: ok. I'm also confused as to why YV12 performance is so bad on android – is it just when deinterlacing?
[17:54:54] peterbennett: mark____: It is slow on 1080i and ok on 720p. I have not tried 1080p . Maybe I should just try the 1080i and turn off deinterlace.
[17:55:42] mark____: peterbennett: and maybe see how bob works in latest code (which has better quality and shouldn't be too GPU intensive)
[17:56:04] peterbennett: mark____: If the linear blend 2x actually not doubling the frame rate? I am not sure if the YV12 is doubling the frame rate.
[17:56:04] mark____: better quality in latest code – not better than kernel etc
[17:56:45] peterbennett: I think bob is 2x, I can try that.
[17:56:55] mark____: YV12 linear blend was nothing more than a blur filter before. Now it shoud work properly
[17:57:35] peterbennett: I will try all of the deinterlacers and report back on whether there is any difference in frames dropped.
[17:58:50] peterbennett: Is it possible to get back the old UVYV, possibly with an option that we can turn on for these Android devices?
[17:59:42] mark____: peterbennett: in the interests of getting something in for the release  – I'm thinking about reinstating the old UYVY code and changing the YV12 setting to a combo box. So there would the choice of YV12, UYVY, "HQ YUV" and software YUV2RGB.
[17:59:51] peterbennett: YV12 is not as bad as UYVY on android. YV12 drops a few frames each second, UVYV drops most frames
[18:00:44] mark____: I'd prefer to add OpenGL-lite as well – they all need to be either a setting or a profile.
[18:02:02] peterbennett: mark____: A combo box would be better. I had used the check boxes because there were already environment variables to disable certain things and environment veriables were not easy to set in android.
[18:02:56] mark____: ok – I'll do that later. Need to cook now. are you in a position to test the vaapi patch?
[18:02:58] peterbennett: I suppose adding these things to the profile is better but more work.
[18:03:13] peterbennett: Sure I can test the vaapi
[18:18:12] mark____: peterbennett: I'd prefer it all as profiles – not least because the deinterlacers can be specified properly. easy enough but I wasn't sure whether stuarta would be comfortable with a change like that at his stage?
[18:28:09] Steve-Goodey: #12809
[18:28:09] ** MythLogBot https://code.mythtv.org/trac/ticket/12809 **
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[19:04:07] peterbennett: mark____: Further testing reveals that YV12 is OK with Linear Blend 1x or Bob 2x, so that is good news. See my email.
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[19:14:28] peterbennett: mark____: Your vaapi patch says "error: corrupt patch at line 284" when I do git apply
[19:15:28] peterbennett: mark____: That being the last line of the patch I suspect it is cut off before the end ?
[19:20:10] peterbennett: mark____: If I remove the last entry in the patch file the patch has multiple rejectted hunks
[19:23:26] peterbennett: mark____: I cannot test the vaapi stuff the patch will not apply to latest master.
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[21:10:04] dizygotheca: mark____: webkit isn't needed. Just comment out the configure line where it dies
[21:11:08] dizygotheca: mark____: It was used by frontend but has been removed. IIRC there are some guards
[21:12:16] dizygotheca: mark____: It's still required by some plugins so configure hasn't been fixed yet
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[21:24:06] mark____: peterbennett: strange – sorry about that
[21:24:50] mark____: dizygotheca: thanks – I was hoping that was the case. had commented out that line but not tested yet
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