VBrick Systems MPEG-1 - Manual (Page 19)

Configuration
STB Admin Guide 13
RTSP Streaming
Data Buffering Seconds
Buffer Check for Underflow
Lowest Bitrate for Buffer Check
Audio Data Port/Video Data Port/CC Data Port
RTP Data Port
RTSP Streaming MPEG-4 streams in Local-Fullscreen mode only. Choose the protocol
for RTSP streaming. If the source is a video-on-demand server, you must
choose UDP.
• UDP – MPEG-4 RTSP streams will be sent over UDP.
• Interleaved (TCP) – MPEG-4 RTSP streams will be sent over TCP
on the RTSP port. (Also called "RTSP Interleaved".)
• Automatic – An attempt will be made to play the stream over UDP.
If this fails, TCP will be used.
Data Buffering
Seconds MPEG-4 only. This setting will allow more data to be saved before it is
displayed. This can be used in networks where there is a high amount
of delay variation or congestion in the network backbone, and will
'smooth out' video when the network has not been optimized. This
parameter should generally be left at the default value.
Buffer Check for
Underflow. If checked yes, a periodic check for buffer underflow will be made
using the value in
Lowest Bitrate for Buffer Check as a cutoff. Setting
a small value for Lowest Bitrate may result in disruption to low bitrate
MPEG-4 streams. This parameter should generally be left at the
default value.
Lowest Bitrate for
Buffer Check If Buffer Check is set to yes, and if video stream has bitrate greater
than the value, a periodic check for underflow for MPEG-4 streams
will be made. This parameter should generally be left at the default
value.
Audio and Video
Data Ports Audio, Video, and CC Data Port settings default to 6970, 6972, and
6974 respectively. These are used to determine receive ports for data.
This will affect MPEG4 streams requested via RTSP. This will be used
only for MPEG-4 streams. The range is from 0 to 65534. The data
port must always be an even number.
RTP Data Port Set the data port number to use for RTP data. Default = 6970. 0 is
random. This will be used only for MPEG-1 and MPEG-2 streams
served by the VoD server. The range is from 0 to 65535.