camera video capture..
gst-launch-1.0 -v v4l2src device=/dev/video0 ! "video/x-h264, width=640, height=480, framerate=15/1, stream-format=byte-stream" ! rtph264pay ! udpsink host=192.168.1.4 port=5000
... ERROR: from element /GetPipeline:pipeline0/GetV4l2Src:v4l2src0: Internadata stream error.
Additional debug info: gstbasesrc.c (3055): gst_base_src_loop (): /GstPipeline:pipeline0/GstV4l2src/v4l2src0: streaming stopped, reason not-negotiated (-4) ...
Could someone check what is going wrong and help me to resolve this issue?