Wasapisrc dropping samples even when queue has leaky=downstream

[Marcos Kintschner]

So I have a pipeline with:

wasapisrc low-latency=true ! queue leaky=2 ! ...

And I get the following error from time to time:

0:00:39.224220600  8420   06A107D8 WARN            audiobasesrc
gstaudiobasesrc.c:840:gst_audio_base_src_create:<audiosrc> create DISCONT of
320 samples at sample 508160
0:00:39.224331800  8420   06A107D8 WARN            audiobasesrc
gstaudiobasesrc.c:845:gst_audio_base_src_create:<audiosrc> warning: Can't
record audio fast enough
0:00:39.224397400  8420   06A107D8 WARN            audiobasesrc
gstaudiobasesrc.c:845:gst_audio_base_src_create:<audiosrc> warning: Dropped
320 samples. This is most likely because downstream can't keep up and is
consuming samples too slowly.

It doesn't seem that the downstream elements are causing it since the queue
has leaky=downstream and the overrun signal is never emitted anyway. What
might be the cause?

PS: Tested on Windows 10, GStreamer 1.15.2 x86 mingw



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