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Cannot smoothly play .mkv with GPU Acceration
Posted: Sat Aug 21, 2010 6:56 pm
by soul0reaper
Hi, I'm giving your splash player a try and it seems that on some .mkvs whenever I turn on GPU acceration the image stutters, pixelates and flashes green.
Re: Cannot smoothly play .mkv with GPU Acceration
Posted: Sat Aug 21, 2010 7:18 pm
by Nielo TM
I have the same issue with MPC as well when using DXVA. I think issue maybe related to ATI GPU/Driver
Re: Cannot smoothly play .mkv with GPU Acceration
Posted: Sun Aug 22, 2010 2:30 pm
by Joco1114
It must be the driver. I have an nVidia GTX 260 and plays smoothly.
Re: Cannot smoothly play .mkv with GPU Acceration
Posted: Thu Aug 26, 2010 2:08 am
by soul0reaper
Joco1114 while ati drivers are generally crap, it doesn't necessarily "must" be that. I don't want to get a jet engine for directx 11
Its only on selected mkv so I'm guessing its a codec issue. I can play certain mkvs just fine.
Another interesting thing I've noticed is that the GPU sign doesn't show up when I'm playing avi files.
Re: Cannot smoothly play .mkv with GPU Acceration
Posted: Thu Aug 26, 2010 6:08 am
by Joco1114

You're right!
Re: Cannot smoothly play .mkv with GPU Acceration
Posted: Fri Aug 27, 2010 1:06 pm
by vivan
soul0reaper wrote:Another interesting thing I've noticed is that the GPU sign doesn't show up when I'm playing avi files.
I guess that's because almost nobody using AVC (H.264) with avi container (e.g. because avi doesn't support all features of AVC).
There should be codec Xvid/Divx/Mpeg-4 ASP so it isn't possible to playback with hardware acceleration on your card (full acceleration is only for VC-1 and AVC). But this is so old and "easy" codec, that any CPU can handle this.
Re: Cannot smoothly play .mkv with GPU Acceration
Posted: Sat Aug 28, 2010 7:08 pm
by Nielo TM
soul0reaper wrote:Joco1114 while ati drivers are generally crap, it doesn't necessarily "must" be that. I don't want to get a jet engine for directx 11
Its only on selected mkv so I'm guessing its a codec issue. I can play certain mkvs just fine.
Another interesting thing I've noticed is that the GPU sign doesn't show up when I'm playing avi files.
It depends on the video codec as MKV is just a container.
If you play the came file in MPC in DXVA mode, the same artifact will occur

Re: Cannot smoothly play .mkv with GPU Acceration
Posted: Sun Aug 29, 2010 2:00 am
by soul0reaper
It depends on the video codec as MKV is just a container.
If you play the came file in MPC in DXVA mode, the same artifact will occur

They do indeed.
Hmm might be a problem with my ati card then.
can any1 try to play this file
http://www.filesonic.com/en/file/119322 ... 9a2b7_.mkv with gpu acceleration one and see if you get artifacts?
Re: Cannot smoothly play .mkv with GPU Acceration
Posted: Sun Aug 29, 2010 11:00 am
by Joco1114
Every player on my computer worked correctly with the dancing girls video!

Not a HD quality, but with Splash it was enjoyable without any picture error.
Codec: FFDSHOW or built in (GPU acc where possible)
Players: Splash Pro, VLC, PotPlayer
Re: Cannot smoothly play .mkv with GPU Acceration
Posted: Sun Aug 29, 2010 11:32 pm
by Sotos Ch
soul0reaper wrote:It depends on the video codec as MKV is just a container.
If you play the came file in MPC in DXVA mode, the same artifact will occur

They do indeed.
Hmm might be a problem with my ati card then.
can any1 try to play this file
http://www.filesonic.com/en/file/119322 ... 9a2b7_.mkv with gpu acceleration one and see if you get artifacts?
Without gpu acceleration

- 001.jpg (148.75 KiB) Viewed 25090 times
With gpu acceleration

- 002.jpg (237.9 KiB) Viewed 25090 times