Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > Hardware & Software > Software players

Reply
 
Thread Tools Search this Thread Display Modes
Old 8th June 2009, 12:56   #1  |  Link
gowthamhk
Registered User
 
Join Date: May 2009
Posts: 6
Any opensource MPEG-2 decoder with DXVA

Hi,

I did some search to come up for nothing on any open source MPEG-2 decoder with DXVA support as well. I was wondering MPC supports DXVA for H264 but not for MPEG2.

If anybody knows any open source MPEG-2 decoder with DXVA support, Please reply.

Thanks
gowthamhk is offline   Reply With Quote
Old 8th June 2009, 19:34   #2  |  Link
tetsuo55
MPC-HC Project Manager
 
Join Date: Mar 2007
Posts: 2,317
Mpeg2 is so relatively easy to decode in software that no-one has done this yet.
only a small sampling of videocards actually have hardware mpeg2 decoding.(most of it is assisted decoding which no open source application supports)
__________________
MPC-HC, an open source project everyone can improve. Want to help? Test Nightly Builds, submit patches or bugs and chat on IRC
tetsuo55 is offline   Reply With Quote
Old 8th June 2009, 22:38   #3  |  Link
Mangix
Audiophile
 
Join Date: Oct 2006
Posts: 354
the Microsoft decoder that comes with Vista and Windows 7 uses DXVA. but hardware acceleration is a bit useless for MPEG2...
Mangix is offline   Reply With Quote
Old 8th June 2009, 22:40   #4  |  Link
tetsuo55
MPC-HC Project Manager
 
Join Date: Mar 2007
Posts: 2,317
Quote:
Originally Posted by Mangix View Post
the Microsoft decoder that comes with Vista and Windows 7 uses DXVA. but hardware acceleration is a bit useless for MPEG2...
It's not open source though
__________________
MPC-HC, an open source project everyone can improve. Want to help? Test Nightly Builds, submit patches or bugs and chat on IRC
tetsuo55 is offline   Reply With Quote
Old 9th June 2009, 06:43   #5  |  Link
gowthamhk
Registered User
 
Join Date: May 2009
Posts: 6
Hi tetsuo55 and Mangix, Thanks for your info

Even though its a relatively simple decoder, I wanted to use it to take off the load from CPU as much as possible. For that I thought of referring one if available.
gowthamhk is offline   Reply With Quote
Old 11th June 2009, 08:51   #6  |  Link
gowthamhk
Registered User
 
Join Date: May 2009
Posts: 6
ModeMPEG2_VLD support GPU

Hi,

DXVA1.0 spec talks about Slice Control Buffers for off-host VLD processing. But I use nVidia Quadro FX 540 which does not support MPEG2_VLD (as from DXVA checker).

That means, I can't pass Slice Control Buffers to process VLD on my machine right?

Anybody has idea regarding which card supports MPEG2_VLD mode?

Regards,
Gowtham
gowthamhk is offline   Reply With Quote
Old 17th October 2012, 12:15   #7  |  Link
fashionman
Registered User
 
Join Date: Oct 2012
Posts: 2
I want to study it, have you the document about DXVA for MPEG2?

Thanks
Fashionman
fashionman is offline   Reply With Quote
Old 17th October 2012, 13:05   #8  |  Link
pandy
Registered User
 
Join Date: Mar 2006
Posts: 1,044
ATI (at least in past) have full MPEG-2 HW decoding, and for all that ask why HW decoding for MPEG-2 i will say - jitter is much lower than for software solutions and yes, this is visible.
pandy is offline   Reply With Quote
Old 18th October 2012, 09:09   #9  |  Link
wanezhiling
Registered User
 
Join Date: Apr 2011
Posts: 1,165
Quote:
Originally Posted by pandy View Post
ATI (at least in past) have full MPEG-2 HW decoding
About AMD/ATI, only UVD3.0 cards(HD6000/7000) support full MPEG-2 HW decoding.
wanezhiling is offline   Reply With Quote
Reply

Tags
dxva, mpeg-2, mpeg2, open source

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 17:14.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.