Question / Help Monitor capture (0.14.1) stuttering sometimes

[Kayten]

So apparently I've experienced some "FPS drops" in my last recordings but the problem is: These aren't FPS drops. I use monitor capturing to record some older games which can't be captured using another method and the log file does show some lagged frames but they're not enough to justify the odd stuttering. These dropped frames are also visible in the preview while the game runs perfectly fine though, so I guess OBS has some problems picking up all frames.

Might it be possible to fix this on my side or in OBS itself? I'll add additional information if needed.

Here's a log file: https://gist.github.com/a4e42e5434e5215f10f8a153121bad31

 

[Suslik V]

And if you switch to NV12 in Advanced Settings? (Log shows bottleneck in video system).

 

[Kayten]

Changing to NV12 might be a bit better but it certainly didn't fix it. The apparent "bottleneck" could be the game switching resolutions (main menu -> actual game) which OBS seems to choke on.

Log file looks about the same: https://gist.github.com/90bbcf9c23e652ee5772b57ef9db76d0

 

[Kayten]

So, after digging through a lot of websites, my question ist: How does OBS Studio capture the desktop?
Does it use the Desktop Duplication API introduced with Windows 8 and DXGI 1.2? I can't seem to find the corresponding files in OBS source.

 

[Lapppy]

So, after digging through a lot of websites, my question ist: How does OBS Studio capture the desktop?
Does it use the Desktop Duplication API introduced with Windows 8 and DXGI 1.2? I can't seem to find the corresponding files in OBS source.

I don't know exactly how monitor capture works... but from what I've read, the desktop duplication API is the most likely.
You might have the same problem I had a few months ago. I had monitor capture randomly dropping frames and stuttering that don't show up in the log.
As described here: https://obsproject.com/forum/thread...ers-every-10-minutes.39269/page-2#post-181031
It appears that they aren't going to fix it.

 

[Suslik V]

...
It appears that THEY aren't going to fix it.

...WE aren't going to fix it.

and you forgot to add: 'yet'. If there is issue, it could be fixed... or make method deprecated ^_^

 

[Lapppy]

...WE aren't going to fix it.

and you forgot to add: 'yet'. If there is issue, it could be fixed... or make method deprecated ^_^

The OBS team has no intentions of fixing this.

 

[Osiris]

You are assuming it can be fixed.