[gst-devel] rtp transmit occur "not-negotiated (-4)" error

[citywolf]

hi,I also had a "not-negotiated (-4)" error,the following are my commands:
server:
gst-launch -v videotestsrc !  ffenc_mpeg4  ! rtpmp4vpay send-config=true !
udpsink host=127.0.0.1 port=5000 

client
gst-launch -v  udpsrc port=5000 caps=" application/x-rtp,
media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES,
profile-level-id=(string)1,config=(string)000001b001000001b58913000001000000012000c48d8800f50a041e1463000001b24c61766331642e35312e33382e30,
payload=(int)96,ssrc=(guint)3127939974, clock-base=(guint)3486206175,
seqnum-base=(guint)28199" ! rtpmp4vdepay  ! ffdec_mpeg4 !  ximagesink


my operation system Ubuntu is also on the vmware,is this the cause of the
problem?
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