Does anyone know if it will be capable of playing mkv fullhd movies? I thought that my powermac with dual G5s would be powerfull enough but it isn't.

I think that it is pretty important that it works. Any opinions? Maybe a to early to tell but...

@hotrod

Quote:

Does anyone know if it will be capable of playing mkv fullhd movies? I thought that my powermac with dual G5s would be powerfull enough but it isn't. I think that it is pretty important that it works. Any opinions? Maybe a to early to tell but...

i would also think that the grunt to display 1080i video would be a common user request. not sure if that will happen at launch, but once the 2D drivers get up to snuff, i would think it would be possible. hans and/or trevor would be good guys to PM with your question.

-- eliyahu

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@hotrod

HD Movies are not fully dependant of the CPU. As the GPUs are already faster than most mainstream CPUs, if there is proper driver, the X1000 would be able to do full HD, 60 FPS.

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@drHirudo

Quote:

the X1000 would be able to do full HD, 60 FPS.

And with movies you'd only need 24fps ;)

@hotrod

I made bigfoot test a 1080p H264 file with MPlayer/MorphOS on a 2.7GHz G5 and it was clearly fast enough.

OSX is jut not able to do it because of the additional overhead in the graphic system (or whatever).

Last edited by Fab on 14-Sep-2010 at 07:20 PM.

@Fab

Well the Mac G5 has 0.7 Ghz more per core, and SMP will not be supported in the initial version of AmigaOS4.1 (or 4.2), maybe we will get a better graphic card.

In any case it’s maybe better to find a hardware solution, so you don’t max out the CPU, there are chips on PCI card you can buy that does the work for you, even the slower Sam460 can play 1080p video whit hardware acceleration.

Last edited by NutsAboutAmiga on 14-Sep-2010 at 07:27 PM.
Last edited by NutsAboutAmiga on 14-Sep-2010 at 07:27 PM.

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@NutsAboutAmiga

Quote:

even the slower Sam460 can play 1080p video whit hardware acceleration.

Are there drivers for Linux PPC that allow that? Has somebody actually tested that on a Sam? I ask because writting decent drivers that take full advantage of your gfx card is no simple task and ATI may not provide all required documentation.

Is there any well documented PCI video card capable of playing 1080p video streams that our market could take advantage of?

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Quote:

Eric Bachard 08:26, 5 April 2010 (UTC)

=> http://wiki.ooo4kids.org/index.php/EnvironmentSetup/AmigaOS

Seems like the page hasn't been updated for a while, is the port still in progress ?

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@Crumb

Quote:

Are there drivers for Linux PPC that allow that?

Yes.

Quote:

Has somebody actually tested that on a Sam?

No. (think you need PCI express so its Sam460 not 440)

Quote:

Is there any well documented PCI video card capable of playing 1080p video streams that our market could take advantage of?

Yes, try google.

Quote:

I ask because writting decent drivers that take full advantage of your gfx card is no simple task

It depends on the size of the source code.

This best way to do it:

make a program that uses expention library / PCI interface,
when the program work then you rewrite the code so it becomes a device.

Last edited by NutsAboutAmiga on 15-Sep-2010 at 01:43 AM.

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That reminds me of the old joke: carving a marble elephant is easy. All you have to do is start with a huge block of marble then you just chip off anything that makes it not look like an elephant.

@CodeSmith

well that's it in a nut shell

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Oh, I like this, I like, I like,

Elephants sculptures bring good fortune apparently.

Cheers

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@Fab

Quote:

Fab wrote: @hotrod I made bigfoot test a 1080p H264 file with MPlayer/MorphOS on a 2.7GHz G5 and it was clearly fast enough. OSX is jut not able to do it because of the additional overhead in the graphic system (or whatever).

Surprising to read that MPlayer is running on MorphOS on a G5 already for any of the Development Team members. That is great news. Did it appear to you and/or bigfoot that all 2.7GHz of the G5 is needed to accomplish running 1080p H264 movie files at the proper speed, or would a 2.0GHz G5 perhaps suffice, when running MorphOS2.x?

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@NutsAboutAmiga

Quote:

In any case it’s maybe better to find a hardware solution, so you don’t max out the CPU

While hardware accelerated video is great, you can't rely on it 100%. Eventually you are going to end up with a video that is using codecs, which are not (yet) hardware accelerated.
My Ion & Atom based X86 system can easily play some 1080p videos, but fails to play many 720p videos with full framerate, if they happen to use unaccelerated codecs, that is.

Of course being able to play many videos hardware accelerated is good enough for most users (DVD-quality video should never be problem, with or without hw acceleration, with CPU speeds we are discussing)


Also regarding feasibility, VDPAU is probably the most common library nowadays, nVidia has good support for it, but it's X86-only (like nVidia in general). Also, I don't think it's supported by current ATI gfx card drivers at all on linux (which has been the prefered gfx-card manufacturer for OS4), so there probably isn't much reference code that could be used for that particular API.

Of course there are other options aswell, such as XvBA (which was designed for Radeon cards) and VA API but I don't know how much linux & OS4 gfx card drivers have in common anyway. And of course you must remember to respect licenses aswell (closed souce + GPL = GPL)

Last edited by Jupp3 on 15-Sep-2010 at 08:22 AM.

Just had a thought could the Xmos chip help hear and be programmed into a mpeg decoder? or is it not powerful enough?

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My G5 has no problem playing a 1080p H.264 m4v file in Mac OS X. Because Apple have optimised Core Video to deal with that specific format. It's not that a dual G5 wouldn't be capable of playing a 1080p mkv but the G5 is the past, and no one is interested in developing improvements for these still capable machines.

The same will apply to the X1000. If someone works on optimising the codec libraries and especially if some of the work can be off-loaded onto the GPU then you'll be set. Though given the Xena chip, someone could develop codec specific decode logic that could help the process.

So the bad news is, unless you're developing it, you might be waiting a while. A straight port of VLC won't do it.

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@amigang

We have discussed it before. XMOS is not general use CPU.

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@opi

Neither is Altivec but it is used to improve MPEG decoding in MPlayer. What will prevent a developper to use Xena to help decoding a video ?

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@amigang

Quote:

amigang wrote: Just had a thought could the Xmos chip help hear and be programmed into a mpeg decoder? or is it not powerful enough?

The Xmos is by far not powerful enough for such a demanding task.
The PA6T at 2 GHz should be able to handle it with optimized code.

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@K-L

Altivec is a subunit of the CPU and specialized for tasks like decoding, while the XMOS is not. And how would you use the XMO to support the PA6T? I guess every cooperation of teh PA6T and the XMOS would introduce a major overhead and result in a poorer performance than if you let the PA6T do teh job alone. Remember the XMOS has only very little own memory and probably will not be able to use board devices by its own (e.g get data from disk and copy data to teh gfx card).

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