Multiple cameras launching multiple instances of the nodes?

[carlosgalvezp]

Hi,

I can get the package working for one single camera. I would like to have multiple cameras creating their own map.
I have tried launching multiple instances of the required nodes (under different namespaces). Launching multiple Openni nodes works fine, and I get separate RGB and Depth image topics for each of them. However, when I launch the second camera, the RGBD_Proc node crashes for some reason (no error, just freezes).

I believe it may have to do with boost::shared_ptr sync_, since the program freezes just after calling
sync_->registerCallback(boost::bind(&RGBDImageProc::RGBDCallback, this, _1, _2, _3, _4));

on the second camera. However I cannot find the error since that code is quite advanced for me.

Do you know what can be happening when trying to run several instances of the RGBD_Proc node?

Thanks in advance.