Transport Stream Rates For The Tributaries - Cisco D9054 Installation And Operation Manual

Transport Stream Rates for the Tributaries

Supported Tributaries
In the D9054 HD Encoder, the following tributaries can be multiplexed together:
• H.264 Video Transport Stream
• H.264/PIP Video Transport Stream
• Layer II Audio Transport Stream
• Dolby Digital Audio
• AAC/AAC Passthrough
• DPI
The SI/PSI rate for the video program is 53 kbit/s. If you, besides the video
program, have an additional audio only program this takes up 33 kbit/s.
To help you to calculate the total TS rate used by the D9054 HD Encoder the
following sections show the transport stream rates of each tributary.
1)
Video
The required transport stream rate in the D9054 HD Encoder primarily depends on
the video coding rate, to some extent on the frame rate, but only slightly on the
GOP.
The following table shows the required transport stream rates for a selection of
video rates. The transport stream rate figures are truncated to two decimals. The
variation of the required transport stream rate for different GOPs is within
truncation accuracy so you need not take the GOP into consideration.
1) Closed captions output packets are part of the video tributary. It is advised that you only enable the
output packets that you know you will use.
4038938 Rev A D9054 HDTV Encoder Installation and Operation Guide B-3