View Full Version : Ati 9800 has already MPEG-2/4 codecs and WMV9
russo121
03-05-04, 10:36 PM
Sure this is PR talk for the moment but let's wait....
If it's true I want it enabled in drivers or something like that! So, nothing new and Nvidia not the first one..... but again. let's wait...
From http://www.doom9.org
"...Then I got an email from an ATI PR rep about MPEG encoding and decoding support in GFX card. It appears that ATIs Radeon 9800 contains hardware DCT and iDCT blocks that can be used for MPEG-2/4 encoding and decoding. Furthermore, the chip does also support WMV9 decoding. However, at this point I'm still waiting to get a link to an official documentation on those features as the ATI website only mentions MPEG-2 decoding acceleration in the Radeon 9800 specs." :D
EMunEeE
03-06-04, 12:12 AM
Originally posted by russo121
Sure this is PR talk for the moment but let's wait....
If it's true I want it enabled in drivers or something like that! So, nothing new and Nvidia not the first one..... but again. let's wait...
From http://www.doom9.org
"...Then I got an email from an ATI PR rep about MPEG encoding and decoding support in GFX card. It appears that ATIs Radeon 9800 contains hardware DCT and iDCT blocks that can be used for MPEG-2/4 encoding and decoding. Furthermore, the chip does also support WMV9 decoding. However, at this point I'm still waiting to get a link to an official documentation on those features as the ATI website only mentions MPEG-2 decoding acceleration in the Radeon 9800 specs." :D
I think this is common knowledge...at least I new about the MPEG 2/4 en/decoding capabilities of the R3XX core.
GlowStick
03-06-04, 03:46 AM
Its not really that hardware dosent support it, its the software.
Most software just ignores useing hardware accleration becuase its very video card specific, so they just make it all cpu so it works on all systems and not special ones.
russo121
03-06-04, 06:44 AM
Originally posted by GlowStick
Its not really that hardware dosent support it, its the software.
Most software just ignores useing hardware accleration becuase its very video card specific, so they just make it all cpu so it works on all systems and not special ones.
The story about nv40 that will support the mpeg 2/4 and wm9 functionallity in hardware means what? They don't have it? Nv30 is more than a year behind?
This story here : http://www.theinquirer.net/?article=14524
goofer456
03-06-04, 08:05 AM
Originally posted by russo121
The story about nv40 that will support the mpeg 2/4 and wm9 functionallity in hardware means what? They don't have it? Nv30 is more than a year behind?
This story here : http://www.theinquirer.net/?article=14524
Yup. Famous Nvidia PR
bloodbob
03-06-04, 09:08 AM
Unless the ati AIW software supports hardware accelerated softwate encoding nothing does though Real Player and Divx support hardware deblocking though this is totally a post processing effect so it really doesn't count.
GlowStick
03-06-04, 12:21 PM
Originally posted by russo121
The story about nv40 that will support the mpeg 2/4 and wm9 functionallity in hardware means what? They don't have it? Nv30 is more than a year behind?
This story here : http://www.theinquirer.net/?article=14524 No, it means even if hardware supports it, such as the 9800 pro, no encoder/decoder supports the hardware rendering it useless, with the accpetion of the Divx video player, witch isnt the most used media player.
Doesn't Direct Show provide API hooks to video hardware acceleration features?
MPEG decoding is partially hardware accelerated on ATi hardware, as is encoding to an even lesser extent me thinks.
Haven't heard anything on MPEG4 though. (Except for post processing filters which doesn't really count at all.)
WMV9 is supposedly partially or fully support but not realized through the current drivers. Some beta drivers had a switch for turning the acceleration (of WMV9) on and off but I and many others got artifacting when turning it on (though CPU usage dropped by quite a bit).
Haven't compared CPU usage in Cat 4.2 to older versions. Perhaps it's on by default in recent drivers?
The question is, to what extent will NV40 support hardware decoding and most of all encoding. In any case it's a nice feature that we should have gotten a long time ago.
WMV9 acceleration will sure be nice if WMHD catches on. :)
eagle17
03-09-04, 05:41 PM
Mpeg2 decoding has been a part of ati since the rage days, mpeg4 decoding through the divx player is new to the r3XX cores. Most of the dvd playback software supports the ati hardware acceleration as does the ati software itself. the only problem is when ati releases driver updates sometimes they change the filters and you have to upgrade the player software also ...
I do not know anything about wmv9 and it is true that nvidia has been lacking this type of support, that is why ati has been the choice for anyone who builds home theatre computers to hook up to there tv, and projectors.
Originally posted by eagle17
Mpeg2 decoding has been a part of ati since the rage days, mpeg4 decoding through the divx player is new to the r3XX cores. Most of the dvd playback software supports the ati hardware acceleration as does the ati software itself. the only problem is when ati releases driver updates sometimes they change the filters and you have to upgrade the player software also ...
I do not know anything about wmv9 and it is true that nvidia has been lacking this type of support, that is why ati has been the choice for anyone who builds home theatre computers to hook up to there tv, and projectors.
to my knowledge the divx player only sports post processing filters, not decoding acceleration
Floruro
03-11-04, 07:19 PM
The DNA drivers have the option for WMV hardware acceleration in the control panel, and the maker of DNA claims that ATI has it disabled, but he enables it. Dont know if it works 100% though, or if it actually does it.
Razor04
03-11-04, 07:52 PM
Originally posted by Floruro
The DNA drivers have the option for WMV hardware acceleration in the control panel, and the maker of DNA claims that ATI has it disabled, but he enables it. Dont know if it works 100% though, or if it actually does it.
I tried this the other day actually. It is still in heavy development as far as I can tell and that is why it is disabled by default. Turning it on not only turns your video into something that looks like it came out of the 60's but also uses more processor power. The only way to get it not looking like the psychodelic 60's is to change the overlay type used and even then that doesn't work right. I have no doubt that they will eventually get it working but for the time being it just doesn't work right. This is an area that they really need to work on as VMR overlays have numerous problems.
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