MythLogBot@irc.freenode.net :: #mythtv

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Wednesday, September 16th, 2020, 02:25 UTC
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[08:35:38] markk_: re IPTV – this is my paired down config: https://pastebin.com/An3akhR4
[08:36:39] markk_: this used to work. I can start livetv but any channel switch just bails out. Tried digging into the guts of the buffering but I can't figure out what is going on. streams are working fine.
[08:57:01] markk_: hrm – I have a fix – not sure how it will impact other tuners though. will create a ticket.
[08:59:28] stuarta: sounds like you are having fun :-/
[09:03:31] markk_: stuarta: not sure I would call it fun
[09:44:50] markk_: ffs – what the hell is going on with this box. dvd playback crashing now.
[09:46:03] stuarta: :(
[09:53:47] markk_: anyone else seeing a crash with dvd playback? very odd place to crash – in QMutex https://github.com/MythTV/mythtv/blob/master/ . . . fer.cpp#L744
[09:54:52] stuarta: tbh, i haven't tried dvd playback in a long time
[09:55:23] stuarta: for oddness like this, i typically try a full distclean, remove everything that's been installed and try again
[09:55:29] stuarta: worst case i clear the ccache too
[09:56:52] markk_: have done the full ininstall, distclean. will try ccache
[09:58:11] stuarta: also check you have no libs that are no longer used (extremely rare), but has caused this crap before
[09:58:17] stuarta: +installed
[09:59:20] markk_: stuarta: yes – have cleared out any stale rubbish
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[10:00:56] stuarta: it's certainly very odd
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[10:31:05] markk_: nope – still crashing
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[15:13:57] hampton: So it is. Trying to recursively lock a mutex
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[16:17:29] markk_: hampton: why do you say recursive? tried changing it to a recursive mutex and it still crashes. strange as nothing has changed in that code for a while. can only think that maybe the ffmpeg merge has changed something
[16:44:10] hampton: I only said that because the function it crashed in is named "isRecursive"
[16:46:41] hampton: Actually looking at the data, it appears that m_menuBtnLock may have been overwritten. m_menuBtnLock.d is invalid.
[16:46:46] ** hampton has to run **
[16:56:07] markk_: hrm – qmutex is a red herring. there is some corruption somewhere.
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[19:50:33] markk_: hampton: the dvd issue is from https://github.com/MythTV/mythtv/commit/18a65 . . . eb2d401e6133
[19:51:12] markk_: the problematic code is https://github.com/MythTV/mythtv/blob/master/ . . . fer.cpp#L678
[19:54:37] markk_: m_clut.data() appears to be the issue – incrementing a temporay value – if I store that pointer and pass that to std::copy it works
[19:56:16] markk_: hampton: a quick look suggests there may be issues elsewhere
[19:56:27] markk_: (with std::copy)
[19:59:09] ** hampton is running through... **
[20:02:00] hampton: I'll look at it tonight. There's something funky about std::copy and how it applies the size (i.e. the size is a count of the number of items, but are the items of the size of the source item or the size of the destination item). I thought I had checked all of those, but I'll check it again.
[20:10:03] markk_: hampton: ok – that makes sense. I have a fix then – just need to cast m_clut.data appropriately. I'll push it.
[20:25:55] jpabq: Running master, on one of my frontends, CEA-608 and CEA-708 captions do not display correctly. Most of the captions don't display at all. Some captions will display but only for a fraction of how long they should. If I run mythfrontend on my backend computer, they display correctly. Anyone have any ideas?
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[21:38:00] markspieth: jpabq: sounds like something I fixed for av subtitles a while ago. forced subtitles were clearing unforced ones early.
[21:38:55] markspieth: I couldn't test those modes so left that functionality alone
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