separate downscale for depth and color (was available before)

[bmegli]

Preliminary Checks

• [X] This issue is not a duplicate. Before opening a new issue, please search existing issues.
• [X] This issue is not a question, bug report, or anything other than a feature request directly related to this project.

Proposal

When moving to new driver "backend" following ROS 2 implementation, possibility to use different down-scaling for depth and color data was removed.

https://github.com/stereolabs/zed-ros-wrapper/blob/37d0c0224174e64b9676e4900e33d1a2852685e3/zed_wrapper/params/common.yaml#L31-L32

The proposal is to have this possibility back

Use-Case

In non-local scenarios:

• depth data compression, processing, bandwidth requirements are high
• RGB compression/processing/bandwidth requirements are low

In the past it was possible to use high resolution RGB video data with lower resolution depth data (downsampled independently from RGB/video)

Anything else?

No response

[Myzhar]

This feature has been removed for data synchronization issues. Adding it back is not planned.

The repository is open-source, so I recommend forking it to bring forward your custom version if you need this feature.

[bmegli]

Umm ok!