[Bug 382194] Adding LADSPA effects while playing causes static audio

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=382194
  GStreamer | gst-plugins-good | git

Stefan Kost (gstreamer, gtkdoc dev) <ensonic> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |NEW
                 CC|                            |ensonic at sonicpulse.de
     Ever Confirmed|0                           |1

--- Comment #4 from Stefan Kost (gstreamer, gtkdoc dev) <ensonic at sonicpulse.de> 2011-05-25 19:37:09 UTC ---
There is still a bug somewhere. If I run the attached script (after changing
the sample audio file), audio stops when the ladspa-fx is inserted.

With some debug logging enabled I can see that there is a caps issue:
0:00:05.332336178 21010  0x80af510 DEBUG               GST_CAPS
gstpad.c:1876:gst_pad_link_check_compatible_unlocked: caps are compatible
0:00:05.333134725 21010  0x87f9b00 DEBUG               GST_CAPS
gstpad.c:2776:gst_pad_configure_sink:<ladspa-decimator0:Input> caps
audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)16,
depth=(int)16, rate=(int)44100, channels=(int)2 not accepted
0:00:05.333187741 21010  0x87f9b00 WARN               baseparse
gstbaseparse.c:2733:gst_base_parse_loop:<mpegaudioparse0> error: streaming
stopped, reason not-negotiated
0:00:05.333267066 21010  0x87f9b00 DEBUG               GST_CAPS
gstpad.c:2776:gst_pad_configure_sink:<ladspa-decimator0:Input> caps
audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)16,
depth=(int)16, rate=(int)44100, channels=(int)2 not accepted

The example works if I use e.g. "volume" or "equalizer-3bands" instead of the
ladspa-element.

Its a good test though, as it also fails with other elements (audioecho, pitch,
...)

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