Element that plays silence when stream stops?

[marcin at saepia.net]

Thank Tim,

as far as I see interaudiosrc can be used to communicate within one
process, not between two separate processes? I need to do inter-process
communication. Effectively I need to achieve what interaudiosrc/sink does
but between processes.

m.

2016-07-06 15:02 GMT+02:00 Tim Müller <tim at centricular.com>:

> On Wed, 2016-07-06 at 13:13 +0200, marcin at saepia.net wrote:
>
> Hi,
>
> > I am developing an app in which I use shmsink/shmsrc to communicate
> > between processes. They send audio to each other.
> >
> > If data in the sender is not flowing (e.g. I fetch file over HTTP and
> > the transfer is temporarily stopped) the shmsrc also stops, as
> > there's no data to consume.
> >
> > I would prefer that it keeps going and playing silence. Is there any
> > element for this? (maybe audiorate?)
>
> Simplest way might be to just do
>
>  ... ! interaudiosink
>
> interaudiosrc ! shmsink
>
> (in which case interaudiosrc will keep producing silence even if you
> stop feeding data into interaudiosink)
>
> Other than what Nicolas already suggested, you could also write a
> GstAudioSink baseclass that outputs data via shm, in that case the
> audiosink/ringbuffer will keep writing silence samples if no data
> arrives (assuming the pipeline stays in playing state).
>
> Cheers
>  -Tim
>
> --
>
> Tim Müller, Centricular Ltd - http://www.centricular.com
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