D9054 HD Encoder,
Subsampling
The D9054 HD Encoder supports subsambling. Subsampling decreases the
resolution of the source material in order to lower the amount of data to be
encoded.
1080i: supports full, 3/4, 2/3 and 1/2 resolution.
720p: supports full, 3/4 and 1/2 resolution.
Transport Stream
The encoded data, carrying the video and audio signals, is internally multiplexed
into the MPEG-4 and DVB compliant transport stream when the D9054 HD Encoder
is used in a stand-alone or ROSA controlled application. When the D9054 HD
Encoder is controlled by a PowerVu
(available in the future), a PowerVu multiplexer is expected to be used where
appropriate DVB tables are inserted for compliant transport. The three ASI outputs
always carry the transport stream (TS).
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D9054 HDTV Encoder Intstallation and Operation Guide
®
Network Centre (PNC) control system
4038938 Rev A