I met the problem that gscam didn't stream anything. It's blocked in the line ' GstSample* sample = gst_app_sink_pull_sample(GST_APP_SINK(sink_));' Have you ever meet the problem? I will be really grateful if you have some idea. --- [Visit Topic](https://discourse.ros.org/t/ros-visual-odometry/2465/8) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: