I can’t understand why I’m not getting any audio.
on the receiver:

openob -v 10.10.132.40 node-1 test-link rx

on the sender:

openob -v 10.10.132.40 node-2 test-link tx 10.10.132.40

receiver log:

2020-10-26 17:23:31,301 - openob.node.node-1.audio_interface.default - DEBUG - Fetched mode, got rx
2020-10-26 17:23:31,301 - openob.node.node-1.audio_interface.default - DEBUG - Fetched mode, got rx
2020-10-26 17:23:31,301 - openob.node.node-1.link.test-link - INFO - Waiting for transmitter capabilities...
2020-10-26 17:23:31,302 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0, payload=(int)96, encoding-params=(string)2, ssrc=(uint)3667517765, timestamp-offset=(uint)159183371, seqnum-offset=(uint)30679
2020-10-26 17:23:31,302 - openob.link.test-link.config - DEBUG - Fetched (blocking) caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0, payload=(int)96, encoding-params=(string)2, ssrc=(uint)3667517765, timestamp-offset=(uint)159183371, seqnum-offset=(uint)30679
2020-10-26 17:23:31,302 - openob.node.node-1.link.test-link - INFO - Got caps from transmitter
2020-10-26 17:23:31,302 - openob.node.node-1.link.test-link - INFO - Starting up receiver
2020-10-26 17:23:31,302 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:name, got test-link
2020-10-26 17:23:31,302 - openob.node.node-1.audio_interface.default - DEBUG - Fetched mode, got rx
2020-10-26 17:23:31,302 - openob.node.node-1.link.test-link.rx - INFO - Creating reception pipeline
2020-10-26 17:23:31,302 - openob.node.node-1.link.test-link.rx - DEBUG - Building RTP transport bin
2020-10-26 17:23:31,303 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0, payload=(int)96, encoding-params=(string)2, ssrc=(uint)3667517765, timestamp-offset=(uint)159183371, seqnum-offset=(uint)30679
2020-10-26 17:23:31,303 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:port, got 3000
2020-10-26 17:23:31,303 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:multicast, got False
2020-10-26 17:23:31,304 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:jitter_buffer, got 40
2020-10-26 17:23:31,304 - openob.node.node-1.link.test-link.rx - DEBUG - Building decoder bin
2020-10-26 17:23:31,304 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:encoding, got opus
2020-10-26 17:23:31,305 - openob.node.node-1.link.test-link.rx - DEBUG - Building audio output bin
2020-10-26 17:23:31,305 - openob.node.node-1.audio_interface.default - DEBUG - Fetched type, got auto
2020-10-26 17:23:31,315 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:receiver_host, got 10.10.132.40
2020-10-26 17:23:31,316 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:port, got 3000
2020-10-26 17:23:31,317 - openob.node.node-1.link.test-link.rx - INFO - Listening for stream on 10.10.132.40:3000
2020-10-26 17:23:34,318 - openob.node.node-1.link.test-link.rx - CRITICAL - No data received for 3 seconds!
2020-10-26 17:23:37,318 - openob.node.node-1.link.test-link.rx - CRITICAL - No data received for 3 seconds!
2020-10-26 17:23:40,322 - openob.node.node-1.link.test-link.rx - CRITICAL - No data received for 3 seconds!
2020-10-26 17:23:43,325 - openob.node.node-1.link.test-link.rx - CRITICAL - No data received for 3 seconds!
2020-10-26 17:23:46,329 - openob.node.node-1.link.test-link.rx - CRITICAL - No data received for 3 seconds!
2020-10-26 17:23:49,332 - openob.node.node-1.link.test-link.rx - CRITICAL - No data received for 3 seconds!
2020-10-26 17:23:52,334 - openob.node.node-1.link.test-link.rx - CRITICAL - No data received for 3 seconds!
2020-10-26 17:23:55,338 - openob.node.node-1.link.test-link.rx - CRITICAL - No data received for 3 seconds!
2020-10-26 17:23:56,965 - openob.node.node-1.link.test-link.rx - INFO - Receiving mono audio transmission
2020-10-26 17:23:57,965 - openob.node.node-1.link.test-link.rx - DEBUG - Level: -350.00
2020-10-26 17:23:58,965 - openob.node.node-1.link.test-link.rx - DEBUG - Level: -350.00


sender log:

2020-10-26 17:23:55,997 - openob.link.test-link.config - INFO - Connecting to configuration host 10.10.132.40
2020-10-26 17:23:55,999 - openob.link.test-link.config - DEBUG - Set openob:test-link:name to test-link
2020-10-26 17:23:56,000 - openob.link.test-link.config - DEBUG - Set openob:test-link:port to 3000
2020-10-26 17:23:56,001 - openob.link.test-link.config - DEBUG - Set openob:test-link:jitter_buffer to 40
2020-10-26 17:23:56,001 - openob.link.test-link.config - DEBUG - Set openob:test-link:encoding to opus
2020-10-26 17:23:56,002 - openob.link.test-link.config - DEBUG - Set openob:test-link:bitrate to 128
2020-10-26 17:23:56,003 - openob.link.test-link.config - DEBUG - Set openob:test-link:multicast to 0
2020-10-26 17:23:56,003 - openob.link.test-link.config - DEBUG - Set openob:test-link:input_samplerate to 0
2020-10-26 17:23:56,004 - openob.link.test-link.config - DEBUG - Set openob:test-link:receiver_host to 10.10.132.40
2020-10-26 17:23:56,004 - openob.link.test-link.config - DEBUG - Set openob:test-link:opus_framesize to 20
2020-10-26 17:23:56,005 - openob.link.test-link.config - DEBUG - Set openob:test-link:opus_complexity to 9
2020-10-26 17:23:56,006 - openob.link.test-link.config - DEBUG - Set openob:test-link:opus_fec to 1
2020-10-26 17:23:56,007 - openob.link.test-link.config - DEBUG - Set openob:test-link:opus_loss_expectation to 0
2020-10-26 17:23:56,007 - openob.link.test-link.config - DEBUG - Set openob:test-link:opus_dtx to 0
2020-10-26 17:23:56,007 - openob.node.node-2.audio_interface.default - DEBUG - Set mode to tx
2020-10-26 17:23:56,007 - openob.node.node-2.audio_interface.default - DEBUG - Set type to auto
2020-10-26 17:23:56,008 - openob.node.node-2.audio_interface.default - DEBUG - Set samplerate to 0
2020-10-26 17:23:56,008 - openob.node.node-2.audio_interface.default - DEBUG - Fetched type, got auto
2020-10-26 17:23:56,008 - openob.node.node-2.audio_interface.default - DEBUG - Fetched type, got auto
2020-10-26 17:23:56,009 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:name, got test-link
2020-10-26 17:23:56,009 - openob.node.node-2 - INFO - Link test-link initial setup start on node-2
2020-10-26 17:23:56,010 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:name, got test-link
2020-10-26 17:23:56,010 - openob.node.node-2.audio_interface.default - DEBUG - Fetched mode, got tx
2020-10-26 17:23:56,010 - openob.node.node-2.link.test-link - INFO - Starting up transmitter
2020-10-26 17:23:56,011 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:name, got test-link
2020-10-26 17:23:56,011 - openob.node.node-2.audio_interface.default - DEBUG - Fetched mode, got tx
2020-10-26 17:23:56,011 - openob.node.node-2.link.test-link.tx - INFO - Creating transmission pipeline
2020-10-26 17:23:56,012 - openob.node.node-2.link.test-link.tx - DEBUG - Building audio input bin
2020-10-26 17:23:56,012 - openob.node.node-2.audio_interface.default - DEBUG - Fetched type, got auto
2020-10-26 17:23:56,019 - openob.node.node-2.audio_interface.default - DEBUG - Fetched samplerate, got 0
2020-10-26 17:23:56,019 - openob.node.node-2.link.test-link.tx - DEBUG - audio/x-raw
2020-10-26 17:23:56,021 - openob.node.node-2.link.test-link.tx - DEBUG - Building encoder bin
2020-10-26 17:23:56,022 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:encoding, got opus
2020-10-26 17:23:56,025 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:bitrate, got 128
2020-10-26 17:23:56,025 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:opus_framesize, got 20
2020-10-26 17:23:56,026 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:opus_complexity, got 9
2020-10-26 17:23:56,027 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:opus_fec, got False
2020-10-26 17:23:56,027 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:opus_loss_expectation, got 0
2020-10-26 17:23:56,028 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:opus_dtx, got False
2020-10-26 17:23:56,030 - openob.node.node-2.link.test-link.tx - DEBUG - Building RTP transport bin
2020-10-26 17:23:56,034 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:receiver_host, got 10.10.132.40
2020-10-26 17:23:56,035 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:port, got 3000
2020-10-26 17:23:56,036 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:receiver_host, got 10.10.132.40
2020-10-26 17:23:56,036 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:port, got 3000
2020-10-26 17:23:56,036 - openob.node.node-2.link.test-link.tx - INFO - Set receiver to 10.10.132.40:3000
2020-10-26 17:23:56,037 - openob.link.test-link.config - DEBUG - Fetched openob:test-link:multicast, got False
2020-10-26 17:23:56,048 - openob.node.node-2.link.test-link.tx - WARNING - Waiting for audio interface/caps
2020-10-26 17:23:56,149 - openob.node.node-2.link.test-link - DEBUG - Got caps from transmitter, setting config
2020-10-26 17:23:56,149 - openob.link.test-link.config - DEBUG - Set openob:test-link:caps to application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0, payload=(int)96, encoding-params=(string)2, ssrc=(uint)108875445, timestamp-offset=(uint)871595679, seqnum-offset=(uint)5043
2020-10-26 17:23:57,053 - openob.node.node-2.link.test-link.tx - INFO - Started mono audio transmission
2020-10-26 17:23:58,053 - openob.node.node-2.link.test-link.tx - DEBUG - Level: -350.00
2020-10-26 17:23:59,053 - openob.node.node-2.link.test-link.tx - DEBUG - Level: -350.00
2020-10-26 17:24:00,053 - openob.node.node-2.link.test-link.tx - DEBUG - Level: -350.00
2020-10-26 17:24:01,053 - openob.node.node-2.link.test-link.tx - DEBUG - Level: -350.00
2020-10-26 17:24:02,053 - openob.node.node-2.link.test-link.tx - DEBUG - Level: -350.00