[gstreamer-bugs] [Bug 350006] New: [LADSPA] after changing state from PLAYING to READY/NULL, going back to PLAYING doesn't work

[GStreamer (bugzilla.gnome.org)]

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 GStreamer | gst-plugins-good | Ver: HEAD CVS

           Summary: [LADSPA] after changing state from PLAYING to
                    READY/NULL, going back to PLAYING doesn't work
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: critical
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: gnome at jonobacon.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: 2.13/2.14
   GNOME milestone: Unspecified


Please describe the problem:
Attached is a sample script that demonstrates this bug. I basically create
pipeline which feeds an ogg file through a LADSPA effect. I set the state to
PLAYING, and it plays fine, complete with the expected effect output. I then
switch to READY or NULL, which is fine, but when I set the state back to
PLAYING, things go horribly wrong.

I get different errors, depending on whether we go from READY or NULL. This is
after I have played it once. So, I first go from NULL to PLAYING, and it works,
and then I either set it to READY or NULL, and when I go to PLAYING I get
different errors:

>> From READY to PLAYING <<

** (ladspabug.py:9754): CRITICAL **: gst_signal_processor_setup: assertion
`self->state == GST_SIGNAL_PROCESSOR_STATE_NULL' failed

** (ladspabug.py:9754): CRITICAL **: gst_signal_processor_setup: assertion
`self->state == GST_SIGNAL_PROCESSOR_STATE_NULL' failed

** (ladspabug.py:9754): CRITICAL **: gst_signal_processor_setup: assertion
`self->state == GST_SIGNAL_PROCESSOR_STATE_NULL' failed

** (ladspabug.py:9754): CRITICAL **: gst_signal_processor_setup: assertion
`self->state == GST_SIGNAL_PROCESSOR_STATE_NULL' failed

** (ladspabug.py:9754): CRITICAL **: gst_signal_processor_setup: assertion
`self->state == GST_SIGNAL_PROCESSOR_STATE_NULL' failed

** (ladspabug.py:9754): CRITICAL **: gst_signal_processor_setup: assertion
`self->state == GST_SIGNAL_PROCESSOR_STATE_NULL' failed

** (ladspabug.py:9754): CRITICAL **: gst_signal_processor_setup: assertion
`self->state == GST_SIGNAL_PROCESSOR_STATE_NULL' failed

** (ladspabug.py:9754): CRITICAL **: gst_signal_processor_setup: assertion
`self->state == GST_SIGNAL_PROCESSOR_STATE_NULL' failed

** (ladspabug.py:9754): CRITICAL **: gst_signal_processor_setup: assertion
`self->state == GST_SIGNAL_PROCESSOR_STATE_NULL' failed

** (ladspabug.py:9754): CRITICAL **: gst_signal_processor_setup: assertion
`self->state == GST_SIGNAL_PROCESSOR_STATE_NULL' failed

I also check the error bus:

GStreamer encountered a general stream error.
gstoggdemux.c(2852): gst_ogg_demux_loop ():
/mixer/mycomposition1/audio1/internal-decodebin/oggdemux1:
stream stopped, reason not-negotiated



>> From NULL to PLAYING <<

** (ladspabug.py:9829): CRITICAL **: gst_signal_processor_process: assertion
`self->pending_out == 0' failed

** (ladspabug.py:9829): WARNING **: Unexpectedly empty buffer pen for pad
effect1:Output

** (ladspabug.py:9829): CRITICAL **: Something wierd happened...

** (ladspabug.py:9829): CRITICAL **: gst_signal_processor_process: assertion
`self->pending_out == 0' failed

** (ladspabug.py:9829): WARNING **: Unexpectedly empty buffer pen for pad
effect1:Output

** (ladspabug.py:9829): CRITICAL **: Something wierd happened...

** (ladspabug.py:9829): CRITICAL **: gst_signal_processor_process: assertion
`self->pending_out == 0' failed

** (ladspabug.py:9829): WARNING **: Unexpectedly empty buffer pen for pad
effect1:Output

** (ladspabug.py:9829): CRITICAL **: Something wierd happened...

** (ladspabug.py:9829): CRITICAL **: gst_signal_processor_process: assertion
`self->pending_out == 0' failed

** (ladspabug.py:9829): WARNING **: Unexpectedly empty buffer pen for pad
effect1:Output

** (ladspabug.py:9829): CRITICAL **: Something wierd happened...

** (ladspabug.py:9829): CRITICAL **: gst_signal_processor_process: assertion
`self->pending_out == 0' failed

** (ladspabug.py:9829): WARNING **: Unexpectedly empty buffer pen for pad
effect1:Output

** (ladspabug.py:9829): CRITICAL **: Something wierd happened...

** (ladspabug.py:9829): CRITICAL **: gst_signal_processor_process: assertion
`self->pending_out == 0' failed

** (ladspabug.py:9829): WARNING **: Unexpectedly empty buffer pen for pad
effect1:Output

** (ladspabug.py:9829): CRITICAL **: Something wierd happened...

** (ladspabug.py:9829): CRITICAL **: gst_signal_processor_process: assertion
`self->pending_out == 0' failed

** (ladspabug.py:9829): WARNING **: Unexpectedly empty buffer pen for pad
effect1:Output

** (ladspabug.py:9829): CRITICAL **: Something wierd happened...

** (ladspabug.py:9829): CRITICAL **: gst_signal_processor_process: assertion
`self->pending_out == 0' failed

** (ladspabug.py:9829): WARNING **: Unexpectedly empty buffer pen for pad
effect1:Output

** (ladspabug.py:9829): CRITICAL **: Something wierd happened...

** (ladspabug.py:9829): CRITICAL **: gst_signal_processor_process: assertion
`self->pending_out == 0' failed

** (ladspabug.py:9829): WARNING **: Unexpectedly empty buffer pen for pad
effect1:Output

** (ladspabug.py:9829): CRITICAL **: Something wierd happened...

** (ladspabug.py:9829): CRITICAL **: gst_signal_processor_process: assertion
`self->pending_out == 0' failed

** (ladspabug.py:9829): WARNING **: Unexpectedly empty buffer pen for pad
effect1:Output

** (ladspabug.py:9829): CRITICAL **: Something wierd happened...

I also check the error bus:

GStreamer encountered a general stream error.
gstoggdemux.c(2852): gst_ogg_demux_loop ():
/mixer/mycomposition1/audio1/internal-decodebin/oggdemux1:
stream stopped, reason error

Steps to reproduce:
1. 
2. 
3. 


Actual results:


Expected results:


Does this happen every time?


Other information:


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