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I'm having issues with 1080p videos getting sporadic points of low FPS (going from 24 to 15 and lower). It seems to happen at the same point in certain videos.

90% of the video will play perfectly fine however these same points will cause a few minutes of lower FPS with the audio and video going out of sync with no apparent reason.

I am using the latest build from https://launchpad.net/~wsnipex/+archive/xbmc-xvba with the latest ATI 12.9 beta drivers downloaded today (also tested with 12.8 stable). Debug log from me opening XBMC, playing the video for a period of approximatly 30 seconds good fps, then low fps, then the final 20 seconds good fps again: http://pastebin.com/g9T2ctsS

You are not using xvba. The video is decoded by software.

Go to Video -> Playback and select XVBA

XVBA is already selected. VDPAU was also selected, tried turning that off and restarting XBMC but no difference.

You might try 12.6. 12.8 and 12.9 did the same for me. 12.9 has many versions. Warning it is tricky changing versions. It is in the main xvba thread.

@LinkZUK:

No it is not. The logfile you presented does not even try to open xvba nor vdpau.

(2012-10-13, 12:26)fritsch Wrote: [ -> ]@LinkZUK:

No it is not. The logfile you presented does not even try to open xvba nor vdpau.

I'm not sure what else to try then, I have got it selected, here's a screenshot of my playback settings : http://i.imgur.com/8LD6O.jpg

@gfisher: Thanks for the suggestion, just tried it but still no luck.

The profile is Hi10 and not taken by any hw decoder. You need a very powerful CPU in order to play this smoothly.

I thought I had installed my GPU drivers properly so the GPU would be being used, not the CPU. I followed the instructions from http://youresuchageek.blogspot.fr/2012/0...linux.html for the ATI driver install. Any idea what I might of done wrong and how I fix it?

@LinkZUK;
As FernetMenta said: There is absolutely _no_ hw decoder out there that can decode hi10p in hardware. These kind of videos can only be decoded on the raw CPU. It has nothing to do with your amd graphics driver - it won't help.

Was pretty hard to find:


Try this video and you will see, it is fine:
http://www.auby.no/files/video_tests/h26..._birds.mkv

We can now start a discussion why these Anime guys publish hi10p - but this is another point :p

(2012-10-13, 13:45)fritsch Wrote: [ -> ]@LinkZUK;
As FernetMenta said: There is absolutely _no_ hw decoder out there that can decode hi10p in hardware. These kind of videos can only be decoded on the raw CPU. It has nothing to do with your amd graphics driver - it won't help.

Ah I see, so it's the codec that has been used on the video its self that is the problem?

@LinkZUK:
It is the codec Level. H264 is fine, but not h264 hi10p.

I edited my above comment some times, so you only got half - bad habit, i know.

@fritsch:

I understand now. Thank you both for your help