The prepare-av operation only supports mediapackages with only one video and audio stream per flavor. Thus, if you have two video streams with the flavor "presenter/source", the operation will fail. The same happens with the audio: if you have two audio streams with the same flavor, the operation will fail.
Check which flavors are assigned to which of your input devices and make sure that each audiovisual source has its own unique flavor. regards Rubén Pérez TELTEK Video Research www.teltek.es 2012/10/11 zengshan <[email protected]> > ** > here is the error messages from the log file: > 2012-10-11 03:31:55 ERROR (WorkflowOperationWorker:157) - Workflow > operation 'prepare-av' failed > > org.opencastproject.workflow.api.WorkflowOperationException: Multiple > tracks with competing audio/video streams and flavor 'presenter/source' > found > at > org.opencastproject.workflow.handler.PrepareAVWorkflowOperationHandler.mux(PrepareAVWorkflowOperationHandler.java:214) > at > org.opencastproject.workflow.handler.PrepareAVWorkflowOperationHandler.start(PrepareAVWorkflowOperationHandler.java:130) > at > org.opencastproject.workflow.impl.WorkflowOperationWorker.start(WorkflowOperationWorker.java:217) > at > org.opencastproject.workflow.impl.WorkflowOperationWorker.execute(WorkflowOperationWorker.java:139) > at > org.opencastproject.workflow.impl.WorkflowServiceImpl.runWorkflowOperation(WorkflowServiceImpl.java:710) > at > org.opencastproject.workflow.impl.WorkflowServiceImpl.process(WorkflowServiceImpl.java:1528) > at > org.opencastproject.workflow.impl.WorkflowServiceImpl$JobRunner.call(WorkflowServiceImpl.java:1833) > at > org.opencastproject.workflow.impl.WorkflowServiceImpl$JobRunner.call(WorkflowServiceImpl.java:1806) > at > java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) > at java.util.concurrent.FutureTask.run(FutureTask.java:166) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) > at java.lang.Thread.run(Thread.java:636) > > 2012-10-11 > ------------------------------ > zengshan > ------------------------------ > *发件人：*zengshan > *发送时间：*2012-10-11 14:10 > *主题：*error messages > *收件人：*"matterhorn-users"<[email protected]> > *抄送：* > > ** > Hi all, I run across this error messages: > org.opencastproject.workflow.api.WorkflowOperationException: > org.opencastproject.workflow.api.WorkflowOperationException: Multiple > tracks with competing audio/video streams and flavor 'presenter/source' > found > Is there anybody know the reasons? > > 2012-10-11 > ------------------------------ > zengshan > ** > > _______________________________________________ > Matterhorn-users mailing list > [email protected] > http://lists.opencastproject.org/mailman/listinfo/matterhorn-users > >
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