1.) Check the source file and play with WMT from a local file to make sure that the file itself does not contain the distortions you mention.
2.) Check the viewer host PC to make sure the CPU can handle the decode requirements. IPTV uses s/w decode for the most part so the CPU is taxed. If your source file is MPEG1/2 at high b/w (i.e. >1.5MB/s) and your PC has a slower CPU, this could be the issue.
3.) When streaming the file from IPTV server, select the program played to look at its source play statistics to see if the program is being streamed at the proper rate.
4.) Finally, check your network. Is QoS necessary in your environment? If so, what has been implemented?
It sounds like the questions have been answered and the initial issues resolved, but I thought I would offer a few comments on QoS.
First, QoS is a non-issue at the Ethernet workgroup switch level if the sum of the ports is equal to or greater than the capacity of the switch backplane. In other words, Ethernet switches that cannot be oversubscribed. QoS is really only an issue on bandwidth constrained or oversubscribed pipes, which may be the case outside of a workgoup. As SACHON says, impossible to deal with in a BB and best to consider the QoS needs of the whole network.
To the extent that the video is live, the VBrick itself offers DiffServ capabilities where you can set the TOS field. This allows upstream routers to prioritize the live traffic over non-realtime traffic such as http and email.
While true QoS is of course a complicated subject, one can avoid having to "go there" through the appropriate use of multicasting (which has the effect of reducing the need for bandwidth and hence helps to make real QoS less of an issue).
OH, wait ... I just remembered something. I had the same problems you reported (audio/video out of sync, dropped frames) using the VBrick and IPTV viewer at any speed other than 1Mbps. You have to set the VBrick to stream at 1Mbps. Crazy, I know ... but that's how I got it to work with IPTV.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
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setting the clocks forward 1 hour from standard time during the summer
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