[pulsesink] EOS is not coming with prebuf -1 in audio clock

[sunghyun Eum]

Dear All,

I have a question about prebuf in pulsesink.
when I set prebuf as 1 like this in pulsesink.c

  wanted.tlength = spec->segtotal * spec->segsize;
  wanted.maxlength = -1;
  wanted.prebuf = -1; <-------------- here
  wanted.minreq = spec->segsize;

after that, pulsesink can't handle EOS message. it made pipeline lockup.
I am using audio-clock for pipeline. 
if I follow system clock, lockup wouldn't be happened but I need use
audio-clock.

this is the callstack when lock up is happend, it seems to wait for
something.

we can not use prebuf -1 with audio clock?
if you have any info, please share with me.

Thank you,

callstack
#0 __GI_ppoll 
at ../sysdeps/unix/sysv/linux/ppoll.c line 56 

#1 ppoll 
at /usr/include/bits/poll2.h line 77 

#2 gst_poll_wait 
at gstpoll.c line 1248 

#3 gst_system_clock_id_wait_jitter_unlocked 
at gstsystemclock.c line 684 

#4 gst_clock_id_wait 
at gstclock.c line 539 

#5 gst_base_sink_wait_clock 
at gstbasesink.c line 2104 

#6 gst_base_sink_wait 
at gstbasesink.c line 2326 

#7 gst_audio_base_sink_drain 
at gstaudiobasesink.c line 1009 

#8 gst_audio_base_sink_wait_event 
at gstaudiobasesink.c line 1073 

#9 gst_base_sink_wait_event 
at gstbasesink.c line 2982 

#10 gst_base_sink_default_event 
at gstbasesink.c line 3024 

#11 ?? 
from /usr/lib/gstreamer-1.0/libgstpulse.so 

#12 gst_base_sink_event 
at gstbasesink.c line 3190 

#13 gst_pad_send_event_unchecked 
at gstpad.c line 5135 

#14 gst_pad_push_event_unchecked 
at gstpad.c line 4833 

#15 push_sticky 
at gstpad.c line 3443 

#16 events_foreach 
at gstpad.c line 570 

#17 check_sticky 
at gstpad.c line 3499 

#18 gst_pad_push_event 
at gstpad.c line 4952 




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