Meanwhile ROS hydro has it’s own gscam modules released, so I migrated from my own compiled module and also reconfigured the topic remapping.

ptzcam.launch file:

<?xml version=”1″ encoding=”utf-8″?>
<launch>
<node pkg=”gscam” type=”gscam” name=”gscamptz” cwd=”node” respawn=”true”>
<env name=”GSCAM_CONFIG” value=”v4l2src device=/dev/video0 always-copy=false ! video/x-raw-yuv,width=320,height=240,framerate=15/1 ! ffmpegcolorspace”/>
<remap from=”camera/image_raw” to=”/camera/ptz/image_raw” />
<remap from=”camera/camera_info” to=”/camera/ptz/camera_info” />
</node>
</launch>