function 'JITTERBUFFER'

[Synopsis]
Add a Jitterbuffer to the Read side of the channel.  This dejitters the audio
stream before it reaches the Asterisk core. This is a write only function.
 
 
[Description]
max_size: Defaults to 200 ms
Length in milliseconds of buffer.
 
resync_threshold: Defaults to 1000ms
The length in milliseconds over which a timestamp difference will result
in resyncing the jitterbuffer.
 
target_extra: Defaults to 40ms
This option only affects the adaptive jitterbuffer. It represents the amount
time in milliseconds by which the new jitter buffer will pad its size.
 
Examples:
exten => 1,1,Set(JITTERBUFFER(fixed)=default);Fixed with defaults.
exten => 1,1,Set(JITTERBUFFER(fixed)=200);Fixed with max size 200ms, default
resync threshold and target extra.
exten => 1,1,Set(JITTERBUFFER(fixed)=200,1500);Fixed with max size 200ms
resync threshold 1500.
exten => 1,1,Set(JITTERBUFFER(adaptive)=default);Adaptive with defaults.
 
exten => 1,1,Set(JITTERBUFFER(adaptive)=200,,60);Adaptive with max size 200ms,
default resync threshold and 40ms target extra.
exten => 1,n,Set(JITTERBUFFER(disabled)=);Remove previously applied
jitterbuffer
NOTE: If a channel specifies a jitterbuffer due to channel driver config
uration and the JITTERBUFFER function has set a jitterbuffer for that channel,
the jitterbuffer set by the JITTERBUFFER function will take priority and the
jitterbuffer set by the channel configuration will not be applied.
 
[Syntax]
JITTERBUFFER(jitterbuffer type)
 
[Arguments]
jitterbuffer type
    Jitterbuffer type can be 'fixed', 'adaptive', or 'disabled'.
    Used as follows.
    Set(JITTERBUFFER(type)=max_size[,resync_threshold[,target_extra]])
    Set(JITTERBUFFER(type)=default)

[See Also] Not available

Asterisk: функции диалплана

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  • asterisk/func/jitterbuffer.txt
  • Последние изменения: 2014/05/07