I am implementing pjsua2 sample app for voice call on Android devices. It works well on android version 8, 9, 10, 11 without issue. But when I tested on Android 5.1, I can receive call from sip soft phone without any issue. But outgoing call only rings on the other side without any voice.
From the log its mentioned that both AUDIO_OUTPUT_FLAG_FAST as well as AUDIO_INPUT_FLAG_FAST denied by client. can any one suggest me how to rectify this issue.
as per below log : audio details
minFrameCount: 1857, afFrameCount=1024, minBufCount=5, sampleRate=16000, afSampleRate=44100, afLatency=115
4-12 16:17:42.320 4922-4922/org.pjsip.pjsua2 I/System.out: 16:17:42.320 pjsua_call.c !Making call with acc #0 to sip:[email protected]
04-12 16:17:42.321 4922-4922/org.pjsip.pjsua2 I/System.out: 16:17:42.320 pjsua_aud.c .Set sound device: capture=-1, playback=-2
04-12 16:17:42.321 4922-4922/org.pjsip.pjsua2 I/System.out: 16:17:42.321 pjsua_aud.c ..Opening sound device (speaker + mic) PCM@16000/1/20ms
04-12 16:17:42.321 4922-4922/org.pjsip.pjsua2 I/System.out: 16:17:42.321 opensl_dev.c ...Creating OpenSL stream
04-12 16:17:42.322 4922-4922/org.pjsip.pjsua2 W/AudioTrack: AUDIO_OUTPUT_FLAG_FAST denied by client
04-12 16:17:42.322 4922-4922/org.pjsip.pjsua2 I/AudioTrack: minFrameCount: 1857, afFrameCount=1024, minBufCount=5, sampleRate=16000, afSampleRate=44100, afLatency=115
04-12 16:17:42.323 4922-4922/org.pjsip.pjsua2 W/AudioRecord: AUDIO_INPUT_FLAG_FAST denied by client
04-12 16:17:42.336 4922-4922/org.pjsip.pjsua2 I/System.out: 16:17:42.335 ec0xb8b41d98 ...Speex AEC created, clock_rate=16000, channel=1, samples per frame=320, tail length=200 ms, latency=0 ms
04-12 16:17:42.336 4922-4922/org.pjsip.pjsua2 I/System.out: 16:17:42.336 opensl_dev.c ...Starting OpenSL stream..
04-12 16:17:42.347 4922-4922/org.pjsip.pjsua2 I/System.out: 16:17:42.347 opensl_dev.c ...OpenSL stream started