[afortunado]

Hi everybody,

First of all, a big thank you to everybody involved in xbmc. I love it. I run it on my nuc, my raspberry pi and my iPad Air and am very pleased with all of them.

There's one thing, though: most 1080p movies I play on my iPad air, don't play very smoothly. Video sometimes moves in slow motion, with audio getting out of sync. After a few seconds, the video goes very fast and catches up with the audio. This happens a lot. It's not the audio, I've tried to convert the same video with different formats (dts, ac3, aac) but it makes no difference. When I play the same movie in nPlayer, it plays flawlessly. I've also tried a lot of A/V sync methods, but this didn't make any difference either. Different network protocols (SMB, NFS) also didn't make any difference. I can't test the movie locally because there's not enough space, but as I said, nPlayer plays it flawlessly through SMB.

Is this a known problem? Am I doing something stupid?

Sorry if this has been asked before.

Thanks in advance,

Afortunado

[Ned Scott]

It could be demanding enough that it needs hardware decoding, and right now XBMC v13 on 64-bit iOS devices doesn't use hardware video decoding, just CPU decoding. nPlayer will use hardware video decoding, though.

[afortunado]

Thank you, that makes sense. Any prediction on if or when hardware acceleration will be possible?

[Platypus2]

Read this thread;

http://forum.xbmc.org/showthread.php?tid=185597

To summarise: It will be a LONG time till xbmc gets hardware acceleration for 64 bit devices OFFICIALLY.

There is however an unofficial build that works very well with 64 bit devices. There is a known corruption issue with some h.264 encoded videos, but in those cases software decoding is more than efficient as there is a fix to stop it maxing out the cpu (which is what you are experiencing now). If battery is an issue for these videos then I guess nPlayer or other App Store apps are the best bet, but hopefully you don't encounter the corruption issue too often.

Please try the build - it will help a lot

Just in case you miss it in the thread, the latest 64-bit build can be found here: https://github.com/linusyang/xbmc/releases