sdp which has contents info is received when rtsp connection is opened.
extract duration ,codec info , resolution from sdp and get it by GstMessage */
if (!strcmp(structure_name, "rtspsrc_properties")) {
sdp which has contents info is received when rtsp connection is opened.
extract duration ,codec info , resolution from sdp and get it by GstMessage */
if (!strcmp(structure_name, "rtspsrc_properties")) {