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2021-12-06 12:38:48,150 [vert.x-worker-thread-16] ERROR i.a.e.adaptive.WebRTCEncoderAdaptor - java.lang.NullPointerException: This pointer address is NULL.
	at org.bytedeco.ffmpeg.avutil.AVFrame.format(Native Method)
	at io.antmedia.enterprise.adaptive.base.AudioEncoder.writeFrame(AudioEncoder.java:270)
	at io.antmedia.enterprise.adaptive.WebRTCEncoderAdaptor.writeRawAudio(WebRTCEncoderAdaptor.java:559)
	at io.antmedia.enterprise.adaptive.WebRTCEncoderAdaptor.encodeAudioRunner(WebRTCEncoderAdaptor.java:1543)
	at io.antmedia.enterprise.adaptive.WebRTCEncoderAdaptor.lambda$initAudioTrackExecutor$5(WebRTCEncoderAdaptor.java:1433)
	at io.vertx.core.impl.ContextImpl.lambda$executeBlocking$2(ContextImpl.java:313)
	at io.vertx.core.impl.TaskQueue.run(TaskQueue.java:76)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:829)