VBrick Systems v4.4 manual MPEG-4

Models: v4.4

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Preferences

MPEG-4

Due to the lower bandwidth nature of MPEG-4 streams, StreamPlayer offers several parameters to tune the receiving of MPEG-4 streams.

Buffer Size

Sets the buffer size which provides a more smooth viewing experience

 

if there is packet loss. Default (and minimum setting) is 200

 

milliseconds for UDP Playback (typical on a Local Area Network) and

 

2000 milliseconds (2 seconds) for TCP Playback (typical on the

 

Internet).

 

 

MPEG-4 Decoder

There are several settings that can improve the video quality of

 

MPEG-4 streams by post processing the video signal after it has been

 

decoded. However, this increases CPU utilization substantially.

 

Deringing and Deblocking are resource intensive and are not

 

recommended unless the PC has a 2.0 GHz, or higher, processor. On

 

lower end machines, enabling Deringing and Deblocking may degrade

 

video quality.

 

 

Enable Deringing

Corrects for certain motion artifacts.

 

 

Deblocking

Smooths the video frame by smoothing artifacts inherent to the digital

 

compression process.

 

 

MPEG-4 RTSP

StreamPlayer Plus can receive MPEG-4 streams via several methods in

Streams

order of efficiency – UDP, RTSP Interleaving, or HTTP tunneling.

 

When Automatic is chosen StreamPlayer Plus will try different

 

protocols to establish the best connection. In some cases, for example,

 

if you know you cannot receive UDP streams because of firewall

 

issues, you may want to define the method StreamPlayer tries to

 

connect because the automatic method can cause up to several

 

seconds of delay. The port can also be modified, but this is not

 

recommended, unless you know that the port on the VBrick or Video

 

on Demand server that is sending the video has also been changed.

 

 

StreamPlayer User Guide

15

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VBrick Systems v4.4 manual MPEG-4