Thursday, May 12, 2011

Including MPEG-2 transport stream in to MPEG-4 NMX server


Including MPEG-2 transport stream in to MPEG-4 NMX server

* Assign NMX prostream 2nd port as a input port and connect ASI signal of MPEG-2 i.e.,
from PNC-2 MUX output.

* Create another MPEG-2 transport stream in NMX server and also create audio and video signals
in this transport stream, audio and video PID's should be identical to PNC-2 PID's.

* Minimize PNC-2 output Bitrate(Datarate) to 3.5 - 3.7 i.e., by
a) Removing C.A bits (500 kbps).
b) Adjusting video bitrate to 3.3 Mbps.

* Assign 3.8 Mbps bitrate to MPEG-2 transport stream in NMX server for this we have to adjust
NMX MPEG-4 Divitrack pool rate from 30 Mbps to 26.1 Mbps.(now each MPEG-4 channel bit
rate-2 Mbps).

* Connect input and output of MPEG-2 transport stream to MPEG-4 transport stream logically
in NMX server as 15th channel.

* Activate this MPEG-2 service in NMX server and check the output of MPEG-2.

* Delete existing MPEG-2 transport stream in PI-SYS server.
* Delete MPEG-2 SAS IP address in PI-SYS server.
* Remove both the MPEG_2 SAS's from the rack
* Tune 15th channel MPEG-2 signal in MPEG-4 transport stream and add product and other
settings.
* check the final output.

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