Question / Help NVENC + GeForce Experience in OBS Studio

[VP_Tim]

Hello.

I use NVENC for streaming since software x264 is way too demanding for i5-2310 processor.
My NVENC setup http://image.prntscr.com/image/73a372c6178d457080a5a8ce2f539e12.png

Recently i compared NVENC output in OBS Studio and in GeForce Experience. GFE result is way better in quality.

Is there a way to capture GFE output as a video source in OBS?

 

[Simes]

Even if there were, you'd still need to encode it.

 

[Suslik V]

Also try to increase B-frames to 2 and uncheck Enforce... option if you want to use keys at intervals 2 sec (or this settings forced: Local recording not using stream encoder during "automatically record").

 

[VP_Tim]

Even if there were, you'd still need to encode it.

So my great cunning play isn't possible in any way? That's sad, cause GFE's output has way better quality than OBS.

Also try to increase B-frames to 2 and uncheck Enforce... option if you want to use keys at intervals 2 sec (or this settings forced: Local recording not using stream encoder during "automatically record").

Спасибо за совет. Tried it and had no good results at all in OBS ~0.16.

Like that, correct?
http://image.prntscr.com/image/1a9a54ad66644ba28e704c20efe02203.png

For some reason i get up to 60% dropped frames when this setting is active. Video is GTX960.
http://image.prntscr.com/image/61569ee684a648b5b8c43e7c4bd99d83.png

 

[Osiris]

So my great cunning play isn't possible in any way? That's sad, cause GFE's output has way better quality than OBS.

Nonsense, that all depends on your settings.

 

[VP_Tim]

Nonsense, that all depends on your settings.

Screenshots with settings are in my previous posts.

OBS is not even close to GFE when we're talking about streaming.
GFE
https://www.youtube.com/watch?v=1ryRNS2jWeo
OBS
https://www.youtube.com/watch?v=zuxgLESSU-g

 

[moriz1]

is the GFE video a local recording? if so, then the answer is obvious: GFE is using much higher bitrate, resulting in higher quality.

 

[VP_Tim]

is the GFE video a local recording? if so, then the answer is obvious: GFE is using much higher bitrate, resulting in higher quality.

No. Both links are streams. With GFE quality is awesome, but no plugins, line controls, alerts and all the stuff of course. So i didn't switched yet.

 

[Suslik V]

...
Спасибо за совет. Tried it and had no good results at all in OBS ~0.16.

Like that, correct?
http://image.prntscr.com/image/1a9a54ad66644ba28e704c20efe02203.png

For some reason i get up to 60% dropped frames when this setting is active. Video is GTX960.
http://image.prntscr.com/image/61569ee684a648b5b8c43e7c4bd99d83.png

You welcome. Post full log from this streaming attempt, please (where you had 44% frames drop).

 

[VP_Tim]

You welcome. Post full log from this streaming attempt, please (where you had 44% frames drop).

Fresh one. "Enforce" unchecked, b-frames set to 2.
https://gist.github.com/d1de73f3ce22a06ddf51ff3c4fc4ba2e

It works like that every time, was the same in 0.16, 0.16.1, 0.16.2.

Here's the result:
https://www.twitch.tv/testobsuser/v/92765804
Looks nicer but it basically drops two thirds of the frames.

 

[Simes]

16:36:33.774: Output 'adv_stream': Number of dropped frames due to insufficient bandwidth/connection stalls: 1273 (50.7%)

You don't have an encode problem, you have a connection to Twitch problem.

 

[VP_Tim]

You don't have an encode problem, you have a connection to Twitch problem.

I don't have any connection issues. Check link in my signature. It's the acc where i stream with a stable setup.

Last stream session:
https://www.twitch.tv/deadmen_tim/v/92652677
This exact stream session on YT:
https://www.youtube.com/watch?v=AGD7iQdUX1U

 

[Simes]

You're dropping half your frames due to connection problems. It's right there in your log.

 

[VP_Tim]

You're dropping half your frames due to connection problems. It's right there in your log.

Interesting. Why i don't drop any when i don't have b-frames set to "2"? Twitch doesn't accept b-frames or something? Anyone streaming to Twitch using NVENC with b-frames set on with stable result?

 

[Suslik V]

Twitch Bandwidth Tester tool. Find it and try it.

 

[VP_Tim]

Twitch Bandwidth Tester tool. Find it and try it.

https://www.twitch.tv/deadmen_tim/v/92818695

Spoiler: in russian

Франкфурт кадры не дропал, но зрители говорили о том что подгружается непрерывно. С отключенными b-frames все ок. Почему так, хрен его знает.

Вообще основной, нетестовый стрим идет через рестрим.ио, сразу на четыре канала, видимо придется пока отказаться от использования этой настройки. Идеальное качество дает GFE, благодаря каким-то внутренним нвидивским мегаалгоритмам видимо, но там нет ни алертов, ни плагинов, ничего. Захватить и использовать его поток, я так понял, нельзя. Нет в жизни счастья, короче.

В идеале, конечно бы, не бодаться с энвенком, но софтовый кодек проц не вытягивает, все становится раком. Вообще меня удивило дико, что есть какая-то зависимость во время стрима от локального кодирования. Как это возможно, мне решительно непонятно.
https://www.twitch.tv/deadmen_tim/v/92818695

https://www.twitch.tv/deadmen_tim/v/92818695

Test result:
http://image.prntscr.com/image/14f36d8824854cfe8de34da793bf7c69.png
Frankfurt didn't dropped frames, but for some reason were stuttering for viewers, when b-frames set to "2". Unchecked it for now.

Result with b-frames "2". Only 11 minutes, then restarted with stable config.
https://www.twitch.tv/deadmen_tim/v/92818695

 

[Suslik V]

Also, you can try Quick Sync (if motherboard support this, and in bios you have an option to enable Intel integrated video card).

 

[VP_Tim]

Than you can try Quick Sync (if motherboard support this, and in bios you have an option to enable Intel integrated video card).

Yeah, was looking into it, but mb doesn't support integrated video. Whatever.

 

[Suslik V]

And if you stream with x264 (where b-frames enabled, CPU preset lower than ultrafast), still buffering to viewers?!

 

[VP_Tim]

And if you stream with x264 (where b-frames enabled, CPU preset lower than ultrafast), still buffering to viewers?!

Didn't tried on new system, with software i can stream only in 720p so i switched to NVENC.