Encoding and all that on GPU

G

Gears

New Member
why not make it so all the hard work can be pushed off onto any 2ad installed video card?

I have 2 5770's in crossfire, but I would be more then happy just gaming on the first gpu if the 2ad gpu was doing the heavy work of encoding and all that stuff leaving me with a nearly free cpu and no dips in fps.
 
Warchamp7

Warchamp7

Forum Admin
Video cards can't encode well, if at all.*

Also, the only thing about encoding in your link is not at all relevant to real-time encoding.
 
L

Lain

Forum Admin
Lain
Forum Moderator
Developer
I don't know about avivo technology, but palana just implemented a quicksync encoder on the latest OBS git, so that's a start at least
 
A

Andypro

New Member
Jim said:
I don't know about avivo technology, but palana just implemented a quicksync encoder on the latest OBS git, so that's a start at least
Click to expand...

indeed! thank you palana for all of your hard work in doing the initial implementation of quick sync. Hopefully this will get into a test build soon so that I can do some comparison tests between x 264 and quick sync.
 
dodgepong

dodgepong

Administrator
Forum Admin
I guess people aren't getting the message. I'll try to explain it more.

Everyone's all hyped up today about the release of nVidia's ShadowPlay. Shadowplay is a piece of software that makes use of the built-in encoder on nVidia Kepler GPUs called NVENC (NVidia ENCoder).

If OBS were to leverage nVidia GPUs to do encoding, it would use NVENC, not ShadowPlay. However, it seems that the NVENC SDK is still very much in beta and it appears that licensing issues may be getting in the way of further exploration. It's hard to say at this point. Please refer to the thread I linked to earlier to follow the current discussion about NVENC to-date.
 
F

freehuhn

Member
shadowplay is use the nvenc that means the new driver got the "key" so it should be free now. the current beta build only supports quadro cards that's the problem adobe preime already got a working plugin and people talked how good it works.

but what's about this:
viewtopic.php?f=7&t=8263

this is tested with common cards.
 
P

Pimpmuckl

New Member
I don't want to go too much off-topic, but what about the new R9 290x which sports a h264 encoder?

Is there even an SDK out there to use it? Edit: Looks like there is with VCE, didn't saw the thread sorry.
 
dodgepong

dodgepong

Administrator
Forum Admin
According to that wiki page, it only supports h264 encoding on the main profile and not the high profile, which is kind of sad. It also seems pretty limited in terms of hardware support. If you have a supported Intel GPU, you might as well just use QuickSync instead.
 
C

computerquip

New Member
Herm... just realized most of these are meant for decoding anyways, not encoding.

Perhaps encoding via the GPU should be left up to the codec we use (for instance, an OpenCL implementation would not be easy and definitely a codec-specific task).

Never the less.. nvidia has NVENC. I'm not sure if AMD has anything. Maybe Mesa has something as well.
 
M

moraldino

New Member
Even if it were possible, wouldnt the GPU be a bad place to have encoding on if you're playing games?

So far, I think Quicksync is one of the best choices for local recording, and two pc setup with, or, without capture card for live.
 
F

freehuhn

Member
it's the perfect place thinks like nvenc and vce arn'#t using the shader is a special part in the gpu. there is no real impact on the in game fps. the quality of nvenc looks impressive and it is tweak able with ref frames b frame and so on.

the ipat with nvenc it's below 5 %.

with quicksync the gpu shader are used so if u run the game on the intel gpu too u got huge fps problems.

it' the same with video decoding on nvidia gpu they don't run on the shaders. amd doesn't have a video engine.
 
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