@Mrodfr

Quote:

Mrodfr wrote: @Hans Quote: @all Sadly the documentation required to use the Radeon's video decoding hardware just isn't available. I have seen snippets of MPEG stuff in the R500 documentation, but not enough to actually use it. It's not possible to have the informations by using an open source Linux player (who support hardware DVD playback) and look at the source code ?

Linux players use a library such as XvMC or VDPAU, which in turn use a hardware-specific driver. It is the driver's source-code that we'd need, which is not available.

Hans

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@thead

just to add to the discussion.
a mplayer benchmark of 500 frames of the same .VOB file.
First one playing of my hard drive and the second one of the DVD drive.
hardrive benchmark is like 32.25 times faster.
What gives ?

...................................................................................................................................................
16.System:> mplayer -benchmark -vo null -nosound -frames 500 Media:Movies/DVDS/Casino_Royale/VIDEO_TS/VTS_01_1.VOB
MPlayer SVN-r29068-4.2.3 (C) 2000-2009 MPlayer Team

Playing Media:Movies/DVDS/Casino_Royale/VIDEO_TS/VTS_01_1.VOB.
MPEG-PS file format detected.
VIDEO: MPEG2 704x480 (aspect 3) 29.970 fps 8286.0 kbps (1035.8 kbyte/s)
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 704 x 480 (preferred colorspace: Mpeg PES)
VDec: using Mpeg PES as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [null] 704x480 => 704x480 Mpeg PES
Selected video codec: [mpegpes] vfm: mpegpes (MPEG-PES output (.mpg or DXR3/IVTV/DVB/V4L2 card))
==========================================================================
Audio: no sound
Starting playback...
VDec: vo config request - 704 x 480 (preferred colorspace: Mpeg PES)
VDec: using Mpeg PES as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [null] 704x480 => 854x480 Mpeg PES
V: 16.9 500/500 0% 0% 0.0% 0 0

BENCHMARKs: VC: 0.031s VO: 0.005s A: 0.000s Sys: 1.455s = 1.491s
BENCHMARK%: VC: 2.0506% VO: 0.3147% A: 0.0000% Sys: 97.6347% = 100.0000%

Exiting... (End of file)
...................................................................................................................................................

16.System:> mplayer -benchmark -vo null -nosound -frames 500 VIDEO_DVD:VIDEO_TS/VTS_01_1.VOB
MPlayer SVN-r29068-4.2.3 (C) 2000-2009 MPlayer Team

Playing VIDEO_DVD:VIDEO_TS/VTS_01_1.VOB.
MPEG-PS file format detected.
VIDEO: MPEG2 704x480 (aspect 3) 29.970 fps 8286.0 kbps (1035.8 kbyte/s)
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 704 x 480 (preferred colorspace: Mpeg PES)
VDec: using Mpeg PES as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [null] 704x480 => 704x480 Mpeg PES
Selected video codec: [mpegpes] vfm: mpegpes (MPEG-PES output (.mpg or DXR3/IVTV/DVB/V4L2 card))
==========================================================================
Audio: no sound
Starting playback...
VDec: vo config request - 704 x 480 (preferred colorspace: Mpeg PES)
VDec: using Mpeg PES as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [null] 704x480 => 854x480 Mpeg PES
V: 16.9 500/500 0% 0% 0.0% 0 0

BENCHMARKs: VC: 0.029s VO: 0.005s A: 0.000s Sys: 47.996s = 48.029s
BENCHMARK%: VC: 0.0601% VO: 0.0094% A: 0.0000% Sys: 99.9305% = 100.0000%

Exiting... (End of file)

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Sam460ex : Radeon Rx550 Single slot Video Card : SIL3112 SATA card

@utri007

Quote:

utri007 wrote: Problems with ATI documentations and drivers, makes me wonder, maybe some other companies would be more friendly? Like S3/matrox. There where some kind of strategic partnership with matrox? If we are honest, speed of matrox GPUs (poor) would not be issue with current hardware. Sam wouldn't be super computer even with fastest ATI gpus and recent drivers

In the IPC area, PPE in the Xbox 360 is a similar class to PPC460 i.e. dual instruction issue in-order processing. Xbox 360's PPE is crippled by 1.6Ghz L2 shared cache.

But with modern games, effective GpGPU is paramount i.e. AMD’s Xenos GpGPU enables Xbox 360 to be on par with Sony's PS3.

Last edited by Hammer on 18-Mar-2011 at 07:11 AM.
Last edited by Hammer on 18-Mar-2011 at 07:07 AM.
Last edited by Hammer on 18-Mar-2011 at 06:54 AM.
Last edited by Hammer on 18-Mar-2011 at 06:51 AM.

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@Hammer

There will no be modern games for Amiga Os, if we are lucky we get some semi modern games less than 10 years old :)

Thats why it not importan how powefull GPU is, there will no be use of it.

BUT it would be nice if we could use all features of them, like 3d, video codecs etc.

Small companies like s3/matrox are often more friendly to other companies

@utri007
OpenCL support is expected for Gallium.
GPUs from Ati will allow access to GP-GPU programming, which can also be used to accelerate Video-Playback.

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@DAX

Quote:

@utri007 OpenCL support is expected for Gallium. GPUs from Ati will allow access to GP-GPU programming, which can also be used to accelerate Video-Playback.

Gallium doesn't have it yet and it might take quite some time. OS4 doesn't have gallium so I really don't see the point advertising features from software which A) Doesn't exsist on OS4 B) Doesn't even have them. Kinda misleading users.

@Rose
Advertising? You really meant "mentioning" maybe?
I stumbled upon this reports while searching for it,

http://cgit.freedesktop.org/mesa/clover/

and since utri007 said powerful GPU are only good for games, I mentioned a different use that might become available (I don't see where I advertise it as "available" or "existent today").

On a more general note, we can say that, by the same token, we have no support for S3 or Matrox stuff either, so nothing for nothing better to finish what is already in the making, we might end up enjoying other uses too eventually.
The other proposed options seem weak to me...

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SamFlex Complete 800Mhz System + AmigaOS 4.1 Update 4
Amiga 2000 DKB 2MB ChipRam GVP G-Force040 Picasso 2 OS3.9 BB2
AmigaCD 32