[BUG] - Composite Background option not working when filtered source is cropped.

[FiniteSingularity]

Describe the bug If a filtered source that uses background source for compositing option, is cropped, the background compositing is no longer performed.

To Reproduce Steps to reproduce the behavior:

1. Make a chroma-keyed facecam.
2. Place a solid light colored source behind the chroma keyed facecam.
3. Apply a gaussian blur to the face cam.
4. Set the color source as background source for compositing.
5. Witness the dark aura around the facecam.

Expected behavior The facecam blur should not have a dark aura.

Screenshots Before cropping

After cropping

Environment

• OS/Version: Windows 11
• OBS Version: Some dev version
• OBS Composite Blur Plugin Version: 0.0.7-alpha with Exeldros PR merged in
• Blur Algorithm/Type: All

GPU

• GPU make/model: Nvidia RTX 3800
• GPU VRAM: 12Gb

[FiniteSingularity]

A Workaround is to turn off SRGB blending off for the blurred source (facecam in the example above).

This seems to be due to a different rendering pipeline being used for cropped sources. See https://github.com/obsproject/obs-studio/blob/321829d9324f7b82ef362ccc85f6dd053865080c/libobs/obs-scene.c#L550 (Thanks @exeldro for finding this).

[exeldro]

might need look into source output flag OBS_SOURCE_SRGB and video_get_color_space from the struct obs_source_info like: https://github.com/obsproject/obs-studio/blob/321829d9324f7b82ef362ccc85f6dd053865080c/plugins/obs-filters/nvidia-greenscreen-filter.c#L1068

[FiniteSingularity]

This appears to have been fixed by #95