Mixing live with non-live streams with audiomixer

[Olivier Crête]

Hi,

The way aggregator based elements like audiomixer work is that it waits
for input on all pads... Unless one of them is a live source. So if you
have at least one live source, it should timeout after "latency" time
and produce a buffer anyway even if nothing was received.

Olivier

On Wed, 2016-07-06 at 20:31 +0200, marcin at saepia.net wrote:
> Hello,
> 
> I have a case I struggle to understand.
> 
> I have multiqueue ! audiomixer ! something pipeline.
> 
> In order to keep it flowing all the time, and for testing purposes I
> add audiotestsrc in front of it.
> 
> Then I dynamically add branches that fetch data via shmsrc.
> 
> If I set  audiotestsrc is-live = false, and shmsrcs' is-live = true,
> then stopping data flow on one of shmsrcs is not stopping rest of
> them.
> 
> If I use any different combination, stopping one of shmsrcs causes
> others to stop.
> 
> What is the rationale behind this?
> 
> Marcin
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-- 

Olivier Crête
olivier.crete at collabora.com