Rtsp Streaming, Data Buffering Seconds

Configuration

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

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 Data Port/Video Data Port/CC Data Port

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.

STB Admin Guide