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The output page for a PIP service is different to a normal input as transcoding is not allowed and descrambling is
not necessary.
9.3.6
V
IDEO
E
XTENDED
,
MPEG-2
AND
H.264
P
ARAMETERS
Please see the Encoder and Transcoder Configuration Guide for more details on these parameters.
9.3.7
A
UDIO
C
ONFIGURATION
Audio transcoding capabilities and capacity are restricted by hardware and licensing. Depending upon hardware
the transcoder support one or more of the following audio encoding formats
•
MPEG-1 layer 2 encoding
•
AAC-LC, HE-AACv1 and HE-AACv2 encoding
•
Dolby Digital (AC-3) and Dolby Digital Plus (E-AC-3) decoding and pass-through
Please refer to the transcoder datasheet and license information for specifics on what is supported. The following
sections outline the parameters supported for each audio format and how/where these are configured.
9.3.7.1
Audio Support (TC-100)
The audio transcoder can receive MPEG-1/AAC
–
LC/AAC-HE compressed audio from the transport stream.
Dolby Digital or Dolby Digital Plus components can only be set to pass-through.
There are up to 12 MPEG-1 encoders or 4 AAC-LC encoders that can be distributed among the channels on a
module. A mixture of MPEG-1 and AAC encoders are allowed per board. See table below.
AAC-LC codec
MPEG-1 codec
Total encoders per card.
0
12
12
1
9
10
2
6
8
3
3
6
4
0
4