MythLogBot@irc.freenode.net :: #mythtv

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Tuesday, November 20th, 2018, 00:39 UTC
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[15:14:53] MythBuild: build #69 of master-ubuntu-18_04–64bit is complete: Exception [exception git] Build details are at http://code.mythtv.org/buildbot/builders/mast . . . it/builds/69 blamelist: John Poet <jpoet@mythtv.org >, David Hampton <mythtv@love2code.net >, David Engel <dengel@mythtv.org >, Bill Meek <billmeek@mythtv.org >, Peter Bennett <pbennett@mythtv.org >
[15:14:53] MythBuild: build #17 of 29-ubuntu-18_04–64bit is complete: Exception [exception git] Build details are at http://code.mythtv.org/buildbot/builders/29-u . . . it/builds/17 blamelist: John Poet <jpoet@mythtv.org >
[15:15:16] stuarta: wtf.
[15:15:25] stuarta: just because i updated the worker version
[15:15:41] stuarta: ah stupid, meant to be pointing at the dev instance
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[16:12:17] gary_buhrmaster: stuarta: it is unfortunate that buildbot did not provide better version tolerance into their newer worker codes (the recent mythtv externalrecorder versioning support provides client/service version upgrade agreements to, in theory at least, provide ways for older to support newer, and newer to support older).
[16:12:49] stuarta: gary_buhrmaster: we still have to get to buildbot-0.9 or later
[16:13:19] stuarta: they refused to have 0.9+ clients work with <0.9 masters
[16:15:15] gary_buhrmaster: Yes, I understand. I think it was a poor decision on their part. To use the old argument, you can't shutdown the entire telephone system across the country in order to upgrade one central office switch.
[16:16:12] stuarta: yeah, it's been a bit of a pain. at least now i'm making progress towards the new one, which will unblock the f27 -> f28 (or later) upgrade
[16:17:13] gary_buhrmaster: Or, to misrepresent Postel's law: Be conservative in what you send, be liberal in what you accept
[16:30:33] gary_buhrmaster: For clients, I just pip install the older buildslave codes (with --user) for the workers, ignoring the entire buildbot-worker program/libs installed with the OS. It was easier in my use case than blocking system updates which had a different set of dependency opportunities.
[16:30:51] stuarta: yeah on ubuntu i just installed the older package and held it
[16:31:01] gary_buhrmaster: but I look forward to buildbot 1.x to get out of that mitigation (which I just know will burn me sometime in the future because I will have forgotten I did it).
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[17:20:09] gigem: stuarta: Are the commit hooks stuck again?
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[17:38:10] peterbennett: gigem: AFAIK the commit hooks are permanently stuck.
[17:44:06] peterbennett: warpme_: You can add entries to the program table to test more transitions instead of waiting 30 minutes each time.
[17:44:51] peterbennett: warpme_: Itested a few transitions and they were ok, but you said it only happens occasionally so I cannot be sure if it is fixed.
[17:46:10] warpme_: peterbennet: thx for hint. I?m waiting 5min but indeed I can prepare xmltv with 1min duration fake progs. So far patch looks good – but give me some time to test :-)
[17:47:00] peterbennett: warpme_: In USA programs are normally every 30 minutes, maybe you have them more frequent in Poland.
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[17:47:50] warpme_: peterbennett: changing a bit topic: when You added android playback – it was via mediacodec in ffmpeg?
[17:48:04] gigem: stuarta: What have you and hampton been doing then to get them to work for a short while? hampton did just last week.
[17:48:26] peterbennett: warpme_: Yes – mediacodec via ffmpeg.
[17:49:15] peterbennett: warpme_: mediacodec and opengl es , Also you can use software decoding and opengl es.
[17:49:26] warpme_: Do you know how conceptualy mediacodec is related to other hwaccel decoders in ffmpeg?
[17:50:17] peterbennett: warpme_: mediacodec in ffmpeg is different from other hw accel decoders. It does not use a hw accel profile.
[17:51:52] peterbennett: warpme_: it does not use a hw_device_ctx
[17:52:29] warpme_: I?m trying to understant how myth devs. mediacodec knowledge can be reused to exploit ffmpeg with v4l2 m2m decoder. If I will show You code sample – will it be helpful?
[17:54:38] peterbennett: warpme_: the decoders I have added have one problem – they do not use direct to screen output from the decoder, they go through memory first. I have not yet found out how to do the direct to opengl for vaapi2 or mediacodec
[17:56:59] peterbennett: warpme_: I don't know about v4l m2m . Samples are always helpful.
[17:58:14] warpme_: I think best solution for this might be: drm_prime with overlays or egl surfaces. mem 2 mem copy should be via dma_buf – so CPU load will be zero by mem operations. There is very good video about this: https://www.youtube.com/watch?v=pF6i19oscqg
[17:58:42] warpme_: code sample: https://github.com/Elyotna/ffmpeg-drm/blob/master/main.c
[18:00:07] warpme_: it is for testing ffmpeg v4l2 m2m decoder with drm rendering. If we enter this route: all ARM hwaccedd decode world (including future rpi) is ours....
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[18:01:24] peterbennett: warpme_: I will take a look.
[18:05:19] warpme_: i suspect mediacodec deals internaly with vdec hw the same like v4l2 m2m does externally via api to ffmepg.
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[19:02:44] stuarta: gigem: lemme look
[19:03:24] stuarta: yep stuck :(
[19:09:35] stuarta: done
[19:09:40] ** stuarta wanders off again **
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[21:13:26] stuarta: shiny, i like, https://bb.mythtv.org/buildbot/#/workers
[21:13:34] stuarta: look quick, while builds are in progress
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[22:48:53] stuarta: well i know what's up with the fixes/29 build on freebsd, there's an '-I/usr/local/include' early on the compile line, so the headers get pulled from the installed libdvdnav, not our copy
[22:49:15] stuarta: hence DVDBtnGrp_t is undefined
[22:50:50] hampton: istr that I made changes on master to try and ensure that /usr/local/include came last.
[22:51:10] stuarta: yeah, that's the commit i'd need to track down
[22:52:43] hampton: bc20ba5a9a3bea4f5eb7ce5bf6c3e3f7e43f9e34
[23:03:02] natanojl: gigem: Thanks for fixing #13348
[23:03:02] ** MythLogBot https://code.mythtv.org/trac/ticket/13348 **
[23:05:16] stuarta: pile of poo
[23:10:00] stuarta: hampton: is there a preceding commit that might depend on? i've patched it in by hand and it's still not moving the include out to the end
[23:15:39] stuarta: in fact 6731aa6e0d6aa8955a977f86f04145ee70edaccd seems to be the same commit
[23:18:46] hampton: Maybe look at 0c5980ec4c, f8f49fc6f9, or 641109a0c7.
[23:28:02] stuarta: i give up for now, bed time
[23:29:40] gigem: stuarta: Thanks. natanojl: You're welcome.
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