hi everybody I am trying to streaming a mp3 file from a Desktop PC to the Arm Development Board through rtsp & rtp my gst-launch command line is : gst-launch rtspsrc location= "rtsp://192.168.1.100/.MP3Media1.mp3" ! rtpmpadepay ! mad ! filesink location= qqqqq it works perfect on X86, but on Arm it seems have some problems the cosole displays: ---------------------------------------------------------------------------------------------------------------------------------------------------------------- ~ # gst-launch rtspsrc location= "rtsp://192.168.1.100/.MP3Media1.mp3" ! rtpmpadepay ! mad ! filesink location= qqqqq Setting pipeline to PAUSED ... (gst-launch-0.10:524): GLib-GObject-CRITICAL **: g_param_spec_int: assertion `default_value >= minimum && default_value <= maximum' failed (gst-launch-0.10:524): GLib-GObject-CRITICAL **: g_object_class_install_property: assertion `G_IS_PARAM_SPEC (pspec)' failed 0:00:00.991695000 524 0x192b0 ERROR basesrc gstbasesrc.c:1938:gst_base_src_activate_push:<udpsrc2> Failed to start in push mode 0:00:00.995195000 524 0x192b0 ERROR basesrc gstbasesrc.c:1938:gst_base_src_activate_push:<udpsrc3> Failed to start in push mode 0:00:01.004039000 524 0x192b0 ERROR basesrc gstbasesrc.c :1938:gst_base_src_activate_push:<udpsrc3> Failed to start in push mode ERROR: Pipeline doesn't want to pause. ERROR: from element /pipeline0/rtspsrc0/udpsrc3: Could not get/set settings from/on resource. Additional debug info: gstudpsrc.c(770): gst_udpsrc_start (): /pipeline0/rtspsrc0/udpsrc3: could add membership -1: No such device (19) Setting pipeline to NULL ... FREEING pipeline ... ------------------------------------------------------------------------------------------------------------------------------------------------------------------ could anybody tell me where the problem is and how to solve it ~~~~?!!! thank you guys very much