[streaming] Video gets stuck for RTP over RTSP streaming to VLC

[VenuGopal Pai K.R.]

Hi All,
          Please find the scenario below for RTP over RTSP streaming to 
VLC player
--> We are currently streaming 720p video (MPEG-4 and H264) along with 
G711 to VLC player  using RTP over RTSP
       multiple unicast. Input stream bitrate is 3 Mbps.
--> Video playback is fine at both the players but after two hours video 
gets stuck at the second client.
--> Audio continues to play at both the clients.
--> Server continues to stream video and there is no reduction in throughput
--> At the stuck client the following warning messages are observed
      main warning: late picture skipped
--> CPU utilization at the client side is less than 50%.

--> This is not observed for RTP over UDP streaming for the same scenario.
--> This is not observed for video only RTP over RTSP streaming to VLC 
player for the same input bitstream.

Does anyone know the reason for this?
Please suggest some ideas.

Regards
Venu