[Linphone-developers] ortp-error-no such method on filter MSUlawEnc

[Xiao Wang]

Hello,

 

I am trying to make a voice call from sip client A to sip client B, and sip client B is developed by linphone lib.

At beginning the voice talking is good, but after sip client B print the follow information the sip client A can’t hear anything from sip client B,  but sip client B can still hear the sound from sip client A.

 

2018-07-24 11:07:53:585 ortp-warning-alsa_set_params: periodsize:256 Using 256

2018-07-24 11:07:53:585 ortp-warning-alsa_set_params: period:8 Using 16

2018-07-24 11:07:53:645 ortp-warning-alsa_set_params: periodsize:256 Using 256

2018-07-24 11:07:53:645 ortp-warning-alsa_set_params: period:8 Using 16

2018-07-24 11:08:01:152 ortp-warning-Negative RTT computation, maybe due to clock adjustments.

2018-07-24 11:08:01:152 ortp-warning-Negative RTT computation, maybe due to clock adjustments.

2018-07-24 11:08:06:152 ortp-warning-Negative RTT computation, maybe due to clock adjustments.

2018-07-24 11:08:06:152 ortp-warning-Negative RTT computation, maybe due to clock adjustments.

2018-07-24 11:08:16:177 ortp-warning-MSAudioBitrateDriver: Not doing bitrate control on audio encoder, it does not seem to support that. Controlling ptime only.

2018-07-24 11:08:16:177 ortp-error-no such method on filter MSUlawEnc, fid=16395 method index=1

2018-07-24 11:08:16:178 ortp-warning-MSAudioBitrateDriver: encoder MSUlawEnc does not implement MS_AUDIO_ENCODER_GET_PTIME. Consider to implement this method for better accuracy of rate control.

 

There are 2 warnings and 1 error, I searched these issues but I can’t find some useful information, how can I fix this issue?

Any help is appreciated, thanks!

 

Best regards

Xiao