Beirdobot, irc.freenode.net

Saturday, July 5th, 2014, 00:24 UTC

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stuartm:

Wonder how this is coming about – FileRingBuf(//home/gbee/tmp//home/gbee/tmp): OpenFile(): Could not open.

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[11:10:55]

warpme:

Morning/evening all. Just quick q: is upnp working OK for music? In my case attempt to play song in VLC/IOS gives "error, file not found". Indeed looking in BE log http://pastebin.com/L17XKQ7M shows error 404. I think it is bug in current master...

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[11:37:53]

jya:

make sure you are running latest

[11:37:57]

jya:

working fine here

[11:42:02]

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[11:47:26]

warpme:

jya: my master build is from yesterday. That's why I'm asking on IRC. Maybe issue is in my config?. May You hint me where should I check?

[11:47:48]

jya:

latest version is: v0.28-pre-1725-gb265050

[11:48:27]

warpme:

this is my ver: mythbackend version: exported [v0.28-pre-1725-gb265050-dirty-v7.0.00] www.mythtv.org

[11:48:51]

jya:

only music you’re having issue with, or also videos?

[11:48:59]

warpme:

only music

[11:50:04]

jya:

will look into it while I’ve identified while scan videos doesn’t work if IPv6 isn’t set

[11:50:54]

warpme:

thx!

[12:12:06]

warpme:

jya: music issue in upnp seems to be dependedn on 'musiclocation' DB setting. Clearing this setting makes upnp music working. Have you music albums covers presented in VLC?

[12:12:18]

jya:

no

[12:12:28]

jya:

not that I have any artwork showing either

[12:12:32]

jya:

was it working before?

[12:13:05]

warpme:

I dont know. Just started to play with upnp recently

[12:16:05]

jya:

ah so it could be an old problem

[12:16:16]

jya:

right now, I’m only looking at regressions

[12:16:32]

jya:

one that are in 0.27 too

[12:18:02]

warpme:

regarding regressions in master vs. 0.27 – recent one is fe segfault when PIP is started on ION1

[12:22:16]

warpme:

interesting is that this segfault is not always. It depends on content. SD in SD plays OK. SD in HD also OK. HD in HD and HD in SD segfaults

[12:26:05]

stuartm:

jya:

[12:26:07]

stuartm:

MythSocket(1b8c750:55): Protocol error: 'GET /Con' is not a valid size prefix. 174 bytes pending.

[12:26:10]

stuartm:

oops

[12:26:25]

stuartm:

looks like another 6543/6544 port mixup?

[12:26:32]

stuartm:

that's upnp for artwork

[12:28:10]

jya:

warpme: if you start the frontend with -O vdpauhwaccel=0 ? does it still happen?

[12:28:29]

stuartm:

nevermind, upnp client was caching the old (incorrect) port

[12:28:46]

jya:

stuartm: I’ve re-went over all that commit , and I don’t see any further mixup

[12:29:05]

stuartm:

yeah my fault, sorry for the noise

[12:29:26]

stuartm:

forced a clear/restart of the app and it's working now

[12:29:35]

jya:

right now, I believe the issue with the SG, and scan removing files, is that before except for playback and RemoteFile, it would always use IPv4.

[12:30:12]

jya:

I’ve made it use IPv6 if available, but if IPv6 is set to NULL in the settings, and you attempt to scan, the MBE believe the requested hostname is always the local machine

[12:31:11]

jya:

problem is I can’t figure out where it’s doing that. all I see in the log is that it attempts to search for a SG on a SBE on the MBE instead

[12:31:37]

jya:

warpme: when is the last time you had tried PiP?

[12:31:42]

jya:

when it worked?

[12:31:51]

jya:

because nothing has changed there in months

[12:33:38]

jya:

jeez, that scan for file is so bad…

[12:34:15]

jya:

to search for a single file, it recurse in each directory with RemoteGetFileList, then scan that particular list, and do again for each sub-folder

[12:34:51]

jya:

no wonder scan is so slow.. since I’ve added a SBE, it takes a good minute to scan a rather small video library

[12:46:12]

** jya I think it’s the last time ever I attempt to maintain a backport branch… **

[12:47:09]

jya:

and that way that force people to test master if they want the new stuff, which help ironing the bug.. coverage in master is just too poor

[12:50:21]

warpme:

jya: -O vdpauhwaccel=0 not helping

[12:50:42]

jya:

well, there’s been no changes in that code in over a year

[12:51:17]

jya:

you can tell from your BT that it’s nvidia’s vdpau lib that is crashing

[12:51:33]

jya:

install libvdpau-dbg and provide a backtrace again

[12:52:20]

warpme:

regarding PiP issue: it started to segfault arround https://github.com/MythTV/mythtv/commit/849b2 . . . 263ed9612b2f reverting this commit (and all related) makes PiP working OK (with it's old bugs)

[12:53:01]

jya:

well, as I wrote, if you look at that commit, the default argument of _aligned is 0

[12:53:12]

jya:

meaning that code does NOTHING different

[12:53:42]

jya:

if you look at the code, you will see that the difference is that it does :if (_aligned) but _aligned is always 0

[12:53:48]

jya:

so it always does the same thing

[12:54:02]

jya:

so I don’t believe that reverting just that commit fix your problem

[12:54:46]

warpme:

I also mention about other commits related to this. One from them probably enables functionality from this commit

[12:55:03]

jya:

that and when using VDPAU, there’s no frame created, seing that a VideoFrame is only used for software decoding

[12:55:36]

warpme:

May You point me which is best candidate to remove? I can test and give You feedback

[12:55:48]

jya:

well, you can use git bisect

[12:55:58]

jya:

now that will give me a proper pointer.

[12:56:05]

jya:

but *that* commit, has nothing to do with it

[12:56:19]

jya:

not saying that isnt an issue

[12:56:25]

jya:

just not what your pointing to

[12:56:44]

warpme:

Unfortunatelly not so easy as it is mm2 (and adding git to GAR system requires some work)

[12:57:04]

jya:

i have no idea what you just said

[12:58:09]

warpme:

GAR is cross-compile system I'm using to build mm2. My testbed is diskless ION1 – so all test I'm doing are on mm2 as mm2 allows me to use this disk-less hardware

[12:59:08]

jya:

why can’t use just build it on that machine? there’s no dev tools?

[12:59:41]

jya:

just mount a NFS drive on a machine where you can compile

[12:59:44]

jya:

and run it from there

[12:59:56]

jya:

that’s how I do it to debug on my pi

[13:00:19]

jya:

it’s faster than writing on the SD card

[13:01:02]

warpme:

Maybe you have some hipothesis about root cause commit. I can ask build enviroment to build given git rev. If You provide me best git rev. candidates I can do "manual bisect"

[13:04:22]

jya:

it’s likely it’s around that commit

[13:05:19]

jya:

update to current master, edit that mythframe.h and set again int _aligned = 64 back to int _aligned = 0

[13:05:53]

jya:

same in videobuffers.h, replace int aligned = 64 by int aligned = 0;

[13:06:00]

jya:

that will pretty much disable all the new code

[13:06:20]

jya:

maybe ion1 can’t handle strides != width

[13:06:38]

jya:

but I don’t even understand what that would be called...

[13:06:44]

jya:

hooooooo… now that I think of it

[13:07:23]

jya:

videouout_nullvdpau.cpp extract that content of the hardware frame back into a software frame and do software render with it.

[13:07:30]

jya:

that could be it

[13:07:46]

jya:

weird that mine works just fine

[13:10:21]

jya:

(still not the commit you pointed to :) )

[13:11:53]

warpme:

ok. Give me some time as I have rebuild mm2 with master

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[14:25:00]

warpme:

jya: fyi: setting aligned/_aligned to 0 solves issue

[14:26:36]

warpme:

did You consider to optionaly reduce PIP video decode rate for weak CPU platforms (like i.e atom)

[14:27:22]

jya:

with VPAU it’s unlikely going to be an issue

[14:27:52]

jya:

and depending on the medium , you have no choice but decode it all

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[14:53:51]

jya:

what are the audio file format that can contain some artwork?

[14:54:05]

jya:

I can think of mp3, flac, m4a… anything else?

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[15:00:54]

jya:

ogg

[15:01:01]

jya:

I guess that will do for now

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[15:35:09]

jya:

warpme: can you repost your backtrace with the libvdpau-dbg symbols installed?

[15:55:24]

jya:

warpme: can you try this change?

[15:58:47]

jya:

http://pastebin.com/wH0W4kPJ

[15:58:56]

jya:

that code was buggy for a long time :(

[15:59:19]

jya:

causing av_free to be called on an array created with C++ new

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[16:03:31]

jya:

hmm got a vdpau machine to try

[16:03:33]

jya:

doesn’t compiel

[16:06:45]

jya:

that one should do… let me know how it goes...

[16:06:46]

jya:

http://pastebin.com/405WMb8a

[16:56:33]

dekarl1:

meh, why doesn't cppcheck complain when they have code to check matching new/delete, malloc/free, etc/pp. I wonder if they have av_malloc/av_free

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stuartm:

stuarta: apparently one of those repos taken down by the DMCA request belonged to Qualcomm itself

[17:12:57]

stuartm:

the Vuforia Terms & Conditions are interesting, basically you cannot use their SDK if the resulting software is licensed under _any_ open source license

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[21:07:24]

warpme_:

jya: fyi: setting aligned/_aligned to 0 was false positive. Issue is still present. It is only present on particular HD channels. Thesame for http://pastebin.com/405WMb8a.

[21:11:30]

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[21:11:36]

warpme_:

jya: refering to libvdpau-dbg: it looks like ubuntu speciffic. Do You mean using libvdpau_trace.so instead of libvdpau.so? Nvidia documentation seemsto be little criptic here....

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[21:36:58]

jya:

warpme_: libvdpau-dbg is the libvdpau debugging symbols. you can achieve the same by compiling libvdpau yourself (it’s open source).

[21:37:08]

jya:

but did you try the patch I provided earlier? that should work

[21:37:39]

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[21:37:45]

jya:

ah “the same"

[21:54:42]

jya:

dekarl: cpp check would have no idea there. it’s a pointer that is passed and freed in another piece of code.

[21:54:50]

jya:

static analysis wouldn’t find those

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jya:

warpme: I can’t reproduce the issue with the fix in here… I’ve pushed it (there was a memory leak in the code too, must have been there for years)

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