Will frame_ready function cause frames lost when capturing?

[DerekLu]

Hi all,
I think this line of codes in plugins/win-capture/graphics-hook/graphics-hook.h may cause some frames lost when capturing. For example, I want to capture a video game whose fps is 60. So the time interval between two frames should be 1/60s ideally. If some frames get early (e.g. 0.8/60s), "elapsed < interval" will be true and these frames are lost. What's more, how to handle this situation: I want to "downsample" this game, using 30 fps to capture the 60 fps game?
Thanks for answering!

 

[Suslik V]

The "Limit capture framerate" checkbox of the Game Capture properties was intended to do the job (unfortunately, today it still stays at /2 state even for uncapped games renders).

obs-studio/plugins/win-capture/game-capture.c at ff0350b515cdb019dcbad69d6fd90fdcaa9b6dde · obsproject/obs-studio

OBS Studio - Free and open source software for live streaming and screen recording - obsproject/obs-studio

github.com

 

[DerekLu]

The "Limit capture framerate" checkbox of the Game Capture properties was intended to do the job (unfortunately, today it still stays at /2 state even for uncapped games renders).

obs-studio/plugins/win-capture/game-capture.c at ff0350b515cdb019dcbad69d6fd90fdcaa9b6dde · obsproject/obs-studio

OBS Studio - Free and open source software for live streaming and screen recording - obsproject/obs-studio

github.com

Thanks for replying. How about this question?
> If some frames get early (e.g. 0.8/60s), "elapsed < interval" will be true and these frames are lost.
Do you have any advice?

 

[Suslik V]

Image either ready or not at the time intervals.