Silvio Traversaro

Perhaps an alternative if you wont or can't uninstall gstreamer vaapi could be to set the `LIBVA_DRIVER_NAME` to `fakedriver` ? See https://fhackts.wordpress.com/2018/04/16/temporarily-skipping-vaapi-decoders-in-decodebin/ .

@giotherobot did an extensive investigation on a similar problem on its computer, and for him the video player started to work (on Ubuntu 22.04 with conda) after he installed `sudo...

> Accordingly to the outcome seems that the bottleneck is caused by the `send` function inside the meshcat package. Probably an obvious question, but I am missing something: how can...

Thanks, I wonder how I was not able to see it before.

Yes, probably having some kind of set_transform**s** to set all the transforms at once would be useful (this was exactly the bottleneck in the MATLAB visualizer). It may be worth...

> It may be worth to check what they do in Drake. See https://github.com/RobotLocomotion/drake/blob/62750b830658b2013113ce26e9f9b56327e945c4/bindings/pydrake/systems/meshcat_visualizer.py#L595 .

However, if the problem is sending the transform to meshcat, I am not sure why this happens only when loading a dataset and not when the dataset is played back.

> I installed `robot-log-visualizer` via robolotogy_superbuild (source) and pip but it doesn't start If you install `robot-log-visualizer` via the robotology-superbuild, you should not install it via pip. Or you first...

pip on the top of the robotology-superbuild or in a clean environment?

Strange, for me on WSL2 it is working, this is the environment (that is exactly the same environment): ~~~ (rlvtest) traversaro@IITICUBLAP257:~$ mamba list # packages in environment at /home/traversaro/miniforge3/envs/rlvtest: #...