Question / Help Stream AND recording with the same encoder issue

[BeardyBroLeague]

Hey there,

I have recently been streaming and recording using the NVENC encoder. On OBS studio streaming at a lower bit rate using 2pass high quality -low latency setting and then simultaneously recording with the same encoder, but at a much higher bit rate.

This has worked for weeks and just today I can only use discreet encoders, for example. NVENC streaming and QuickSync for recording. It wont let me double load the NVENC encoder anymore.

I am stumped, I don't think I have fiddled with any settings. Any help?

Cheers!

 

[VanDuits]

The NVEnc hardware encoder can do one job only at the same time. I´m pretty sure you were using old OBSS versions with the NVEnc media foundation encoder before. Am I right?

 

[BeardyBroLeague]

I have been doing this before, literally a day before on OBS studio and it was fine, great in fact, it solved a lot of my issues not having a 2 PC setup. Then the dual NVENC encoding just doesn't allow me to start recording or streaming if one of them is already active.

Maybe it was a driver update that caused this to stop working?

 

[Sapiens]

The NVEnc hardware encoder can do one job only at the same time.

This is incorrect. Newer cards (700 series and later? I don't remember exactly) can handle multiple instances of NVENC, e.g. streaming and encoding at different resolutions, bitrates, and rate control methods.

@BeardyBroLeague If you suspect driver issues try doing a clean driver install - https://obsproject.com/forum/resources/performing-a-clean-gpu-driver-installation.65/

 

[BeardyBroLeague]

So I reinstalled drivers fresh as laid out in your post. OBS now sometimes records and streams with the same encoder, and sometimes wont.

This is becoming increasingly odd and frustrating.

 

[BeardyBroLeague]

Woke up this morning and tested before I left for work. Stream and Record no issues. I wonder what is causing it to seemingly randomly be able to encode 2 instances and sometimes not.

My next troubleshooting task is to try it with different games and see if graphical load has an effect on encoding both instances. I'm not sure why it would, as the hardware encoder is separate from the graphical processing on the card (to my knowledge).

Then I guess running in admin and compatibility mode (not that compatibility mode should have ANY effect whatsoever for OBSS). After that I guess its just a bug? Do you have a bug tracker like Mantis that I can log this on?

P.S. Sorry about bumping, just trying to keep it updated, both for my own notes and anyone else having this issue, which I know is at least one other user, as I have seen this issue on the forums, but I have lost the post.

 

[BeardyBroLeague]

I have tested all the above and it makes no difference. When it randomly lets me stream and record, none of the changes affect it and when it wont let me do both changing anything does not seem affect it.

Just to clarify I can stream and record using different encoders, just not the using NVENC for both (which I can sometimes and had been doing for quite some time until recently).

Think this might be an actual bug now?

 

[BeardyBroLeague]

Okay, I hate to be an absolute pain by bumping this, but I have tried absolutely everything I can think of even the really small and simple things like changing the output file type. This makes no sense.

Very frustrating!

 

[Sapiens]

12:54:26.837: warning: This encoder is deprecated, use 'h264_nvenc' instead

Looks like you may be trying to use the old Media Foundation NVENC encoder. Check your encoder selection.

 

[BeardyBroLeague]

Where would I check that? On my obs output settings I am using the NVENC h.264 encoder for both streams and that is the only NVENC encoder I can select.

 

[BeardyBroLeague]

On the offchance that me rolling back my drivers was the issue, I re-updated to the newest drivers for my gtx-970. Still no improvement. It either does or it doesn't, randomly.

I only have the choice of one NVENC encoder in OBS after updating drivers as well. Still stumped. I wonder if the other thread that was having issues resolved this issue?

 

[Jerome Howard]

I seem to be having this issue since upgrading to version 0.16.x

 

[BeardyBroLeague]

Don't mean to Necro my own post, but this is still an issue!!!

Can anyone help at all? Is there a support chat I can use at all, put my streaming at a halt!