audiolatency does not work well with encoders/decoders and queues

[daniel at poradnik-webmastera.com]

Hi,
New audiolatency element has some problem if both encoders/decoders and 
queue are used.

This works as expected:
gst-launch-1.0 audiolatency name=a print-latency=true ! audioconvert ! 
audioresample ! opusenc ! opusdec ! audioconvert ! audioresample ! a.

After inserting queue between encoder and decoder it stops printing 
results periodically:
st-launch-1.0 audiolatency name=a print-latency=true ! audioconvert ! 
audioresample ! opusenc ! queue ! opusdec ! audioconvert ! audioresample 
! a.

However when I tried to use queue without encoder/decoder, it started 
working again:
gst-launch-1.0 audiolatency name=a print-latency=true ! audioconvert ! 
audioresample ! queue ! audioconvert ! audioresample ! a.

In second case audiolatency most probably does not collect measurements 
at all. I have more complex pipeline in my app, which sends and receives 
RTP streams. I tried to use audiolatency there with print-latency=true, 
and also it does not work. I also periodically print values of last and 
avg latency, and I always get zeroes there.

Is is possible to do something so audiolatency would work properly with 
encoders/decoders and queues?

Regards,
Daniel