Hi there,
I am still having several problems to get a solid audioconnection. First
some details about my system:
System: Ubuntu 12 / PulseAudio 1.1 / PJSIP 2.3 (SVN Head) / Headset
Jabra Link 280 USB / using PJSUA2 for Python (swig)
configured:
./configure --disable-oss --disable-video --disable-speex-aec
--disable-l16-codec --disable-speex-codec --disable-v4l2
--with-external-pa --with-external-srtp
installed PA is: ii libportaudio2 / 19+svn20111121-1 / Portable
audio I/O - shared library
the problem:
In regular intervals the following error occurs in the logfile, which
comes along with a short "cracking" in the audiostream:
*[5] media> RTP status: badpt=-1, badssrc=-1, dup=0, outorder=0,
probation=0, restart=0
*[4] media> Bad RTP pt 0 (expecting 8)
*[4] media> Changed RTP peer SSRC 665309863 (previously 665309863)
and:
*[5] portaudio> Jitter buffer empty (prefetch=24), plc invoked
*[5] portaudio> Jitter buffer is bufferring (prefetch=24), plc
invoked
*[5] portaudio> Jitter buffer starts returning normal frames (after
7 empty/lost)
*[5] thr0x7f00b398a700> Timeout timer event
*[5] thr0x7f00b398a700> State changed from Completed to Terminated,
event=TIMER
*[5] thr0x7f00b398a700> Timeout timer event
*[5] thr0x7f00b398a700> State changed from Terminated to Destroyed,
event=TIMER
*[5] thr0x7f00b398a700> Destroying txdata Response msg
200/NOTIFY/cseq=102 (tdta0x7f00a40d1310)
*[5] thr0x7f00b398a700> Transaction destroyed!
and after some more thime these errors get heaping:
ALSA lib pcm.c:7339:(snd_pcm_recover) underrun occurred
...coming up more and more until this one:
ALSA lib pcm.c:7339:(snd_pcm_recover) underrun occurred
2015-02-26 13:36:02,847 - softphone - DEBUG - playback application
'python2.7' was removed!
Expression 'err' failed in 'src/hostapi/alsa/pa_linux_alsa.c',
line: 3286
Expression 'ContinuePoll( self, StreamDirection_In, &pollTimeout,
&pollCapture )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 3813
Expression 'PaAlsaStream_WaitForFrames( stream, &framesAvail, &xrun
)' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 4185
Hint: the line '- softphone - DEBUG - playback application 'python2.7'
was removed!' is done by my code - it tells, that PulseAudio told my
program via DBus, that the program stopped the audiostream.
The call itself (RTP-stream) still consists, but there is no more audio
playable / recordable at all. PJSUA-Endpoint must get restarted over
all.
I already tried to increase / decrease jitter buffer and sound latency -
no success.
Any ideas?
