I wasn’t sure whether to start a new thread or add to this one but my issue is very likely the same as Montellese and 0wing so thought I might be able to cement the verdict one way or the other.
I have the same symptoms as described and, like Montellese, I’m sure this was working previously in the nightly build I was using prior to upgrading to Dharma Beta 2. But of course I have never attempted to use the mkv file that is currently causing me grief, so it may not have worked in the earlier release either.
I can play all manner of HD formats with DXVA2 enabled and it works beautifully no problems. It just some mkv files (and I can’t see any obvious format differences) that the pixilation occurs.
My build is:
Dharma Beta 2
Windows 7 Ultimate 32bit
Intel® Pentium® 4 CPU 3.00GHz
2.5 GB RAM
160GB SATA Hard Drive
Graphics card = ATI Radeon HD3850
Catalyst Drivers = v 10.9
DirectX runtime = June 2010
FFdshow = 2010-09-13 (rev. 3572)
Desktop Resolution: 1920x1080
Aero = off
Video settings within XBMC are:
Render method: Auto detect
Allow hardware acceleration (DXVA2): Enabled
Adjust display refresh rate to match video: Disabled
Sync playback to display: Disabled
A/V sync method (greyed out): Video clock (Resample audio)
Allow error in aspect ratio to minimize black bars: None
Display 4:3 videos as: Normal
Video post-processing: disabled
So far I have tried the usual stuff:
Tried VSYNC on and off
Post processing on and off
Changed adjust display refresh setting etc etc.
I should also mention that the CPU never goes above 15% when playing the MKV file in question and there is no stutter or performance glitches, only pixilation.
I am going to try uninstalling Dharma Beta2 and retry the nightly I used successfully for so long.
At the very least I would like to understand the subtle difference between the MKV files that work and the ones that don’t.
Here is my debug when opening the mkv file in question
http://pastebin.com/AcfiGtzV
As already stated It looks very likely that the issue is ffmpeg related but just wanted to add my two cents to see if that is consistent.
It’s been a while since I posted last but wanted to say Congrats to all involved in this project. By far and away the best OS project on the net IMHO.