not working example AVTransmit2 in mac os x

[trankimcanh]

I run example:

ant -lib ~/.m2/repository/org/apache/maven/maven-ant-tasks/2.1.3 run-example -Drun.example.name=AVTransmit2 -Drun.example.arg.line="--local-port-base=5000 --remote-host=127.0.0.1 --remote-port-base=10000"

error:

  [java] INFO: Warming up SecureRandom...

 [java] Dec 19, 2016 2:23:32 PM org.jitsi.util.LoggerImpl log
 [java] INFO: Warming up SecureRandom finished.
 [java] Exception in thread "main" java.lang.NullPointerException: device
 [java] 	at org.jitsi.impl.neomedia.MediaServiceImpl.createMediaStream(MediaServiceImpl.java:410)
 [java] 	at org.jitsi.impl.neomedia.MediaServiceImpl.createMediaStream(MediaServiceImpl.java:365)
 [java] 	at org.jitsi.impl.neomedia.MediaServiceImpl.createMediaStream(MediaServiceImpl.java:331)
 [java] 	at org.jitsi.impl.neomedia.MediaServiceImpl.createMediaStream(MediaServiceImpl.java:299)
 [java] 	at org.jitsi.examples.AVTransmit2.start(AVTransmit2.java:120)
 [java] 	at org.jitsi.examples.AVTransmit2.main(AVTransmit2.java:351)

Can you help me fix this error, thanks !

[dylankolson]

Similar Error:

Exception in thread "main" java.lang.NullPointerException
at org.jitsi.impl.neomedia.MediaStreamImpl.setFormat(MediaStreamImpl.java:2898)
at org.jitsi.examples.AVTransmit2.start(AVTransmit2.java:182)
at org.jitsi.examples.AVTransmit2.main(AVTransmit2.java:351)

[v5anyexiuluo]

Similar Error:

Exception in thread "main" java.lang.NullPointerException
at org.jitsi.impl.neomedia.MediaStreamImpl.setFormat(MediaStreamImpl.java:2898)
at org.jitsi.examples.AVTransmit2.start(AVTransmit2.java:182)
at org.jitsi.examples.AVTransmit2.main(AVTransmit2.java:351)

Have you solved this error?

[swpalmer]

It seems to die when getting a device for MediaType.TEXT.
I worked around that error by adding this to the loop in initialize:

			if (mediaType != MediaType.AUDIO && mediaType != MediaType.VIDEO)
				continue;

But it still doesn't work. The VIDEO device I get is recvonly.
Not only that, but H264 doesn't seem to be supported. It isn't returned in the array given by:

NeomediaServiceUtils.getMediaServiceImpl().getCurrentEncodingConfiguration().getAllEncodings(MediaType.VIDEO))

This library is very poorly documented and supported. As you can see by the fact that this was asked 4 years ago with no reasonable response.

[gmreddy30]

I faced the following exception. And I tried with different options for mediaStream like mediaStream.setDirection(MediaDirection.SENDRECV);
mediaStream.setDirection(MediaDirection.SENDONLY);
but I still see the exception.

Exception in thread "main" java.lang.IllegalArgumentException: direction
at org.jitsi.service.neomedia.AbstractMediaStream.assertDirection(AbstractMediaStream.java:106)
at org.jitsi.impl.neomedia.MediaStreamImpl.setDirection(MediaStreamImpl.java:2834)
at org.jitsi.examples.AVTransmit2.start(AVTransmit2.java:129)
at org.jitsi.examples.AVTransmit2.main(AVTransmit2.java:352)