best way to flush data in sink/queue

[Mailing List SVR]

A simple solution seems to set a negative ts_offset on the sink based on 
the queue time level,

this seems the less hacky solution,

I have yet to fully understand what the max-lateness property really do 
and because its default value is -1 for audio sink and 20000000 for 
video sinks, I suppose I have to read the code :)

Nicola

Il 02/10/2017 16:40, Mailing List SVR ha scritto:
> Hi,
>
> I have to receive and playback a network stream, it basically works 
> fine, I have a pipeline that receive audio and video and ends with 
> something like this:
>
> ... ! queue ! videosink
> ... ! queue ! audiosink
>
> sometime, when the stream start, the server sends about 10 seconds of 
> data in one second of time. Since video and audio are played synced on 
> the clock a delay is introduced. This is supposed to be a live stream 
> even if it sometimes behaves in this strange way.
>
> I can see that the queues overrun when the data arrives very fast and 
> I would like to flush the queued data (from the queue and/or the sink) 
> when this happen so I can play real time data, old data can be dropped 
> in my use case. What is the best way to flush old data? After some 
> searchs and looking at the code it seems that I can send a flush_stop 
> event, are there better ways?
>
> Of course I can manually handle this situation using appsink/appsrc 
> and dropping data in appsink when the queue overrun and/or do 
> something similar in a pad probe but I would like to avoid this manual 
> handling if possibile,
>
> thanks
> Nicola
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