Mkv hardware accel.

Andreus420 · Mar 30, 2008, 07:50 PM

Any chance of you making the mkv media type hardware accelerated so there can be a end to the stutter issues in HD MKV content?

Zardon · Mar 30, 2008, 08:03 PM

When you say "you" I take it you mean Nvidia?

I agree it would be a great feature for both ATI and Nvidia to have, MKV's are my personal favourite video format.

If you have a powerful enough CPU however it shouldn't be stuttering, even with 1080p content. what is your system configuration and which player/codec pack are you using?

**temeteus82** · Mar 30, 2008, 08:43 PM

If I'm not mistaken .mkv (Matroska Multimedia Container) is just another container format like .avi is. So in theory the H264 hardware accelerated playback should work for .mkv container format it just need a media player to support it.

[EDIT] Or other way would be that nVidia and AMD would release codec that enables the hardware acceleration for HD formats... Since most of the players uses them to decode video.

Zardon · Mar 30, 2008, 08:48 PM

your theory is right, however there is currently no GFX hardware acceleration for MKV.

Andreus420 · Mar 30, 2008, 08:55 PM

ATM I am using a old media shuttle xpc of mine

p4 2.4 northwood
geill ddr500 1gb
7800gs

Software:
Zoom player with ffdshow/also tried corAVC or w/e.

When i get my DOA motherboard replaced by Asus my specs will be the following:

Q6600
8800gt
ocz ddr2 1150
2x 500gb 7200rpm/ 150gb raptor
Custom water cool set up.
Maximus Formula x38

[hobo]eclipse · Mar 30, 2008, 09:00 PM

i'm pretty sure the problem lies in the profile used during the x264 encoding and the amount of reference frames, or something. Not entirely sure but i think was something in that profile that is mainly the one used for releases that is actually spec'd higher than default h.264 encoding. the hardware acceleration is spec'd to the bluray\hd-dvd content. So from what i read the problem may lie more in the way they are encoded than the hardware acceloration, or rather changing the profile used while encoding may be easier than to get ATI/NVIDIA to change the hardware settings.

EDIT: seeing those system specs your using now, i believe it would play back the 720 content fine and prolly stutter and lose sync w/ the sound with a 1080, could be wrong though as i never had a P4, and the better sysytem shoul play them fine. You could also acquire the codecs used in Cyberlink products and use them in you player of choice. I like MPC. In there is a setting to use DxVA, i use it but i does not accelorate w/ GPU much more if it all than without. I believe FFDshow is DxVA compatible aswell.

Mar 30, 2008, 07:50 PM	#1
Andreus420 DriverHeaven Newbie Join Date: Mar 2008 Posts: 2 Rep Power: 0	Mkv hardware accel. Any chance of you making the mkv media type hardware accelerated so there can be a end to the stutter issues in HD MKV content?

Mar 30, 2008, 09:00 PM	#6
[hobo]eclipse ...just bummin 'round Join Date: Oct 2004 Posts: 2,907 Rep Power: 112 System Specs	i'm pretty sure the problem lies in the profile used during the x264 encoding and the amount of reference frames, or something. Not entirely sure but i think was something in that profile that is mainly the one used for releases that is actually spec'd higher than default h.264 encoding. the hardware acceleration is spec'd to the bluray\hd-dvd content. So from what i read the problem may lie more in the way they are encoded than the hardware acceloration, or rather changing the profile used while encoding may be easier than to get ATI/NVIDIA to change the hardware settings. EDIT: seeing those system specs your using now, i believe it would play back the 720 content fine and prolly stutter and lose sync w/ the sound with a 1080, could be wrong though as i never had a P4, and the better sysytem shoul play them fine. You could also acquire the codecs used in Cyberlink products and use them in you player of choice. I like MPC. In there is a setting to use DxVA, i use it but i does not accelorate w/ GPU much more if it all than without. I believe FFDshow is DxVA compatible aswell. Last edited by [hobo]eclipse; Mar 30, 2008 at 09:08 PM.

Mar 30, 2008, 08:03 PM	#2
Zardon DriverHeaven Founder Join Date: May 2002 Posts: 32,480 Rep Power: 179	When you say "you" I take it you mean Nvidia? I agree it would be a great feature for both ATI and Nvidia to have, MKV's are my personal favourite video format. If you have a powerful enough CPU however it shouldn't be stuttering, even with 1080p content. what is your system configuration and which player/codec pack are you using?

Mar 30, 2008, 08:48 PM	#4
Zardon DriverHeaven Founder Join Date: May 2002 Posts: 32,480 Rep Power: 179	your theory is right, however there is currently no GFX hardware acceleration for MKV.

Mar 30, 2008, 08:55 PM	Thread Starter #5
Andreus420 DriverHeaven Newbie Join Date: Mar 2008 Posts: 2 Rep Power: 0	ATM I am using a old media shuttle xpc of mine p4 2.4 northwood geill ddr500 1gb 7800gs Software: Zoom player with ffdshow/also tried corAVC or w/e. When i get my DOA motherboard replaced by Asus my specs will be the following: Q6600 8800gt ocz ddr2 1150 2x 500gb 7200rpm/ 150gb raptor Custom water cool set up. Maximus Formula x38