Solved vnsi4 timeshifting - two recordings/slow motion (vdpau)
#1
As requested a separate thread for my problems:

2 things I stumbled upon while using vnsi4

First: Quite easy to reproduce not sure if it's a limitation or a bug, only a problem if you've got more then 1 dvb card.

1. Start recording on Channel 1.
2. Start another recording on Channel 2.
3. Turn on livetv on the currently recording Channel 1 -> livetv will start from beginning of recording as expected.
4. Stop, turn on livetv on currently recording Channel 2 -> livetv will start at current point, not at the beginning of the recording.

Debug log: http://www.xbmclogs.com/show.php?id=50020

Second: Sometimes I run into a strange situation while timeshifting, the picture will play back in slow motion (19-20fps instead of 50), this only seems to happen on SD mpeg2 channels while I rapidly move through the timeshift file to get to the end of the buffer, or to a certain place in the buffer. The only way I can make it work as expected again is if I stop livetv and start it again. I tried reproducing it with a finished recording on my list but it doesn't happen then, so I would guess it's something the timeshift code is doing differently.

Debug log: http://www.xbmclogs.com/show.php?id=49986 (gets interesting at somewhere around 18:03:04)

Edit: After a while of trying I did indeed manage to get the slow motion problem on one of my recordings, so problem 2 seems to be related to vdpau rather then vnsi.
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#2
is anything of interest in syslog of vdr machine?
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#3
Sorry couldn't test further yesterday. I guess you're talking about problem 1, had another look today and to me the syslog seems normal (apart from it obviously not using the ongoing recording for 1 channel)

syslog of me starting 2 recordings on different channels, then watching channel 1 and afterwards channel 2: http://pastebin.com/syEpG523
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#4
nope, I was talking about problem "Second"

"First" should be easy to fix.
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#5
Nothing in the syslog, just some EPG updates and when I stop livetv after I've got slowmotion:

Code:
Aug 28 00:02:48 xbmc vdr: [8778] VNSI-Error: cxSocket::write: write() error
Aug 28 00:02:48 xbmc vdr: [8778] VNSI: exit streamer thread

But I'd say thats normal.

I will try to trigger it again with a normal recording out of my list, maybe I just didn't try long enough last time.

Edit: After a while of trying I did indeed manage to get the slow motion problem on one of my recordings, so problem 2 seems to be related to vdpau rather then vnsi. I guess it didnt eurface yet because I usually dont move that fast through normal recordings.
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#6
I managed to get into the slomo mode on a 720p 50 fps hdtv channel now too, looks like it's not only mpeg2 recordings, but it seems easier to reproduce with those. I guess the second problem should probably go somewhere else since the cause is most probably vdpau?
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#7
I was trying to reproduce this but without success. Do you have detailed instructions how to force the system into this state?
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#8
could you test this please: https://github.com/FernetMenta/xbmc/comm...0527d6f667
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#9
I'm not set up to compile xbmc myself, will test as soon as a newer xvba build is out. Thanks for looking into it. Regarding reproducing, I seem to get into this state every now and then when I quickly move in big or slow steps forward/backward, sometimes it's happening quite fast other times I need to try really hard so I'm not a 100% certain whats triggering it.
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#10
@ursli are you on OE? if so I can compile this for you
Guide to building an all in one Ubuntu Server - TV(vdr),File,Music,Web

Server Fractal Designs Define XL, Asus P5QL/EPU, Dual Core E5200, 4gb, L4M-Twin S2 v6.2, Supermicro AOC-USAS-L8I, 1*SSD & 13*HDD drives (24TB total) - Ubuntu Server
XBMC 1 ASRock Z77E-ITX, G850, 8GB RAM, SSD, BD - Ubuntu / OpenElec frodo
XBMC 2 Revo 3700 - OpenElec frodo
XBMC 3 Raspb Pi
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#11
Thanks for the offer but I'm on xbmcbuntu.

Edit: shouldn't take long anyway xvba-testing gets updated pretty regulary
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#12
Had a go again with latest xvba-testing, so far I couldn't get into the slowmo state any more, looking good. I'll do some more testing just to make sure before switching problem 2 to fixed. Smile
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#13
for problem 1)
https://github.com/FernetMenta/xbmc-pvr-...577b498d17
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#14
Perfect, this fixes it indeed, tested with 2 ongoing recordings, both played back from beginning. I really need to buy you a beer sometime, thanks for your commitment. Smile

btw, I didn't manage to get into slowmo mode as of yet, so I think this whole thing can be considered solved.
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