Chapter 3 ’Web User Graphical Interface’ — Workflow Library
248 Electra VS
-
Version 05.10
User Manual - Rev. A
Maximum number of audio channels
: if the expected audio if
5.1, set this value to
6
, if it is stereo, set this value to
2
, and if it is mono,
set this value to
1
.
Note: this parameter allows to allocate the system resources (CPU,
memory, license) to the job. If it is higher than the real one, then
system resources are wasted (but it works). If it is lower than the real
one, then the stream will not be decoded.
Language
: leave to
Any
if you do not want to use the language as a
criterion to select the audio component, or use a code from the ISO
639 standard
1
to specify it (for instance, enter
eng
for English,
spa
for
Spanish, etc.). You can also use one of the predefined values.
Codec
:
AAC
,
MPEG-1 Layer 2, AC-3
or
Dolby E
. If set to
Any
, the codec
is automatically detected: this value is suitable when you do not want
to use this parameter as a criterion to select the audio stream.
Note: this parameter allows to allocate the system resources (CPU,
memory, license) to the job.
Clock management
: if set to
Convert to device internal clock
(default value), then the input clock is converted to the device clock. If
set to
Keep input clock
, then the input clock is kept. When you want to
multiplex components from different input programs, the clocks shall
be converted to the device clock. When you want to output a
pass-through component that is scrambled, or that contains private
sections that contain some clock values, you shall keep the input clock.
Generate fake component on absence
: set it to true if you want
to create of fake component on absence of input component.
When no audio component is detected at the extractor input then a
fake audio component is declared in the PMT with the configured
information:
Fake Program Number
Fake PMT PID
Fake Component PID
Fake Codec
Fake Language
When a real audio is detected then the fake component is removed.
Even if
Program number
or
Video PID
are configured to
All
only
one fake component is created in the output PMT.
This mechanism can be used to generate a Dash MPD if there is no
stream at the input of the job.
1.
For the whole list of ISO codes, refer to: http://www-01.sil.org/iso639-3/codes.asp?or-
der=639_3&letter=%25
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