CLI Command Reference
audenc
Makito
X User’s Guide, v2.2, Issue 02
262
System Time Clock Interface (Video Input Selection)
When configuring the audio, you have to specify the video input from which to derive the
audio clock so that it “runs” in lockstep with the with the video input and its STC (System
Time Clock) moves forward at the same rate. This helps decoders with the playback and lip
sync.
When audio encoders are configured to use an SDI input (SDI1ch12 or SDI2ch12), it is
expected and recommended that the source of the video for that encoder is the exact same
SDI input.
However, when audio encoders are configured to use an Analog input, the encoder has no
way to know from which video input this particular audio encoder should derive its clock
and STC.
When you set
stcif
to Auto selection of the STC source, when a new stream is created or
started, if the stream contains Audio and is using Analog for an input, the encoder will
check if the stream
also
has Video. If it does, it will check the currently configured input
for that video encoder and set the STC source of the audio encoder to match it.
AUDENC
E
XAMPLES
SDI
•
Auto
•
BNC1
•
BNC2
# audenc 0 set input=SDI1CH12
(#S/B-292E-HDSDI2) Sets the Audio Input to
SDI1CH12
# audenc 0 set input=DVICH12
(#S/B-292E-DVI) Sets the Audio Input to
DVICH12
# audenc 0 set bitrate=128
Sets the Audio Bitrate to
128
. You will receive the following confirmation:
Audio encoder configured successfully
Parameter (Cont.)
Default (Cont.)
Description/Values (Cont.)
