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Gyruss · 2012-05-30, 22:18

Hi

I am using the latest nightly build on Windows 7 64bit.
My 720p videos are no longer playing back smoothly. I can confirm that they played back perfectly with the Eden release & also before that.
I've messed with every setting I can think of but nothing makes any difference. The same videos play back perfectly still in VNC, WMP etc.

I've pasted a debug log below. Can anyone help?

http://pastebin.com/z0RmVrJR

liltee89 · 2012-05-31, 12:26

I think you should report this in the bug tracker. Althought is a nightly build you can espect this problems.

Bladerunner1962 · (This post was last modified: 2012-05-31, 13:39 by Bladerunner1962.)

I had first time working with my Lenovo and XBMC the same problems.
I found out different ways for me solving that.
First: have a look to your interlace settings...have to be on "auto"
Second if First won't solved the problem: have a look to your hardware settings, if it is 1080p 60 or 50Hz
>>> I don't no why the hardware settings of the Lenovo had influence to XBMC
output...but...I solved that on this way
Thrid: the AV Receiver has to be set on "auto" for picture in order to recognize 24p or not
>>> if the settings are e.g. on 24p the 720p won't work

Gyruss · 2012-05-31, 23:27

I've tried the bug tracker but it doesnt let me log in.

Gyruss · 2012-05-31, 23:39

OK I've experimented a little & discovered its movies which have 5.1 audio are the problem. If I change the audio output to 2.1 it plays back perfectly (although obviously no longer in 5.1 surround).
Anyone got any further ideas? I've check & I'm using the latest sound card drivers.

Gyruss · 2012-06-03, 22:52

Sorry to bump this thread but has anyone got any suggestions? I seem to have tried everything but with no joy.

**Aenima99x** · (This post was last modified: 2012-06-03, 23:49 by Aenima99x.)

In the Audio Ouput settings, uncheck the option "Dolby Digital (AC3) capable receiver".

Gyruss · 2012-06-04, 11:45

(2012-06-03, 23:49)Aenima99x Wrote: In the Audio Ouput settings, uncheck the option "Dolby Digital (AC3) capable receiver".

OK I tried that. Now the movie takes about 5 seconds longer to start & has no sound at all. Although the playback is smooth this time lol.
Also I noticed with this setting, if I tried to skip to a later part of the movie, the playback just froze & I couldnt get it to resume playing.
Switchtng the AC3 option back on gives me the sound back & the abliity to skip forwards but the stuttering comes back. its almost as if someone is very quickly clicking pause/play every so often (once or twice a second).

DDDamian · 2012-06-05, 05:33

Post a Debug Log.

Gyruss · 2012-06-05, 10:29

(2012-06-05, 05:33)DDDamian Wrote: Post a debug log.

There is one in the first post:-)

Dogchow · (This post was last modified: 2012-06-06, 01:38 by Dogchow.)

I'm also experiencing this problem and I'm running the latest opdenkamp/dushmaniac pvr git build under Ubuntu 11.10. His fork was recently merged with xbmc mainline master so I'm assuming it's related to the new AudioEngine features mentioned on the xbmc.org homepage as I was running his prior master merged release and didn't experience this issue.

From my fault finding it looks related to the transcoding of AAC 5.1 to AC3 5.1 (my receiver only supports 2ch pcm, ac3 and dts) and occurs in live tv and media played from disk. I only have h264/aac sources so I don't know if the video codec is an issue and happens whether I have VAAPI enabled or not. The stuttering stops when the live tv programme changes to an AAC 2.0 stream (which gets transcoded as 2ch PCM for me) and also if I change the audio output from HDMI to analog when an AAC 5.1 stream is playing. Gyruss it would be interesting to see if the stuttering stops for you if you also tweak this setting to confirm we're experiencing the same bug. The transcoding of the audio itself actually works very well and plays flawlessly.

Debug log http://pastebin.com/2mTPifzV - search backwards for 'BBC One HD' to get the relevant part
Live tv clip of h264/AAC 2.0 -> AAC 5.1 transition http://www.brutalupload.com/file/index.php?f=V5f2IDWp
Slightly better live tv clip of h264/AAC 5.1 stream http://www.mediafire.com/?jik0xt5r475b4ik

I also tried to submit this as a bug on the trac site earlier but it wouldn't let me in using my forum credentials and I couldn't see a separate signup page anywhere.

Gyruss · 2012-06-06, 22:01

My audio is through an optical cable, Setting it to 2.1 rather than 5.1 stops the stutter.
I havent tried setting to analogue as I wouldnt get any sound if I did.
I have now reverted back to Eden final which works perfectly OK although I will check the nightlys occassionally to see if anything is fixed.
Which brings me to a different thing - is it possible to install 2 different versions of XBMC? (ie eden & a nightly).

Dogchow · (This post was last modified: 2012-06-09, 15:41 by Dogchow.)

I've created a new ticket for this in the bug tracker http://trac.xbmc.org/ticket/13093 - there's nothing wrong with the trac login page it's just that usernames are case-sensitive Smile

Gyruss · 2012-06-07, 19:00

(2012-06-07, 18:31)Dogchow Wrote: I've created a new ticket for this in the bug tracker http://trac.xbmc.org/ticket/12714 - there's nothing wrong with the trac login page it's just that usernames are case-sensitive

D'oh, thats why I couldnt log on lol

Gyruss · 2012-07-07, 13:30

Anyone got any news on this bug? I've recently upgrading my graphics card but this has made no difference.