$ gstreamer-properties malloc: using debugging hooks (process:4605): GStreamer-WARNING **: The GStreamer function gst_init_get_option_group() was called, but the GLib threading system has not been initialised yet, something that must happen before any other GLib function is called. The application needs to be fixed so that it calls if (!g_thread_supported ()) g_thread_init(NULL); as very first thing in its main() function. Please file a bug against this application. gstreamer-properties-Message: Skipping unavailable plugin 'artsdsink' gstreamer-properties-Message: Skipping unavailable plugin 'pulsesink' gstreamer-properties-Message: Skipping unavailable plugin 'sdlvideosink' gstreamer-properties-Message: Skipping unavailable plugin 'v4lmjpegsrc' gstreamer-properties-Message: Skipping unavailable plugin 'qcamsrc' gstreamer-properties-Message: Skipping unavailable plugin 'esdmon' gstreamer-properties-Message: Skipping unavailable plugin 'pulsesrc' gstreamer-properties-Message: Error running pipeline 'Video for Linux (v4l)': Could not get/set settings from/on resource. [v4l_calls.c(409): gst_v4l_set_chan_norm (): /pipeline0/v4lsrc1: Error setting the channel/norm settings: Invalid argument]