Launching Record on a non-existing stream via HTTPProvider

[djos06]

Hi There,

I'm actually trying to make a Record Module for Wowza Server which can record live stream coming from VLC.
All the records will be triggered by a HTTP Provider, so you will be able to send HTTP request like this (http://localhost:9098/recordModule?s...ame=camera.sdp) to launch a record.
But my problem is that I don't know how to launch a record on a stream that doesn't exists. is it possible to create the stream manually or to simulate a client call to launch the stream ?

[charlie]

You can use the MediaCaster API to start the stream. The code to start/stop the stream looks like this:

public boolean startMediaCasterStream(String streamName, String mediaCasterType)
{
	boolean success = false;
	try
	{
		while(true)
		{
			MediaCasterStreamMap mediaCasterMap = appInstance.getMediaCasterStreams();
			IVHost vhost = appInstance.getVHost();
			MediaCasterStreamManager mediaCasterStreamManager = mediaCasterMap.getStreamManager();

			MediaCasterList mediaCasterList = vhost.getMediaCasterList();
			MediaCasterItem mediaCasterDef = mediaCasterList.getMediaCasterDef(mediaCasterType);

			if (mediaCasterDef == null)
			{
				getLogger().warn("ModuleMediaCasterStreamManager.startMediaCasterStream: MediaCaster type not found: "+mediaCasterType);
				break;
			}

			MediaCasterStreamItem mediaCasterStream = mediaCasterMap.getMediaCaster(streamName);
			if (mediaCasterStream != null)
			{
				getLogger().warn("ModuleMediaCasterStreamManager.startMediaCasterStream: MediaCaster already exists[mediacaster]: "+streamName);
				break;
			}

			success = mediaCasterStreamManager.startStream(streamName, mediaCasterType);
			if (success)
				getLogger().info("ModuleMediaCasterStreamManager.startMediaCasterStream: Stream started: "+streamName);
			else
				getLogger().warn("ModuleMediaCasterStreamManager.startMediaCasterStream: Stream start failed: "+streamName);
			break;
		}
	}
	catch (Exception e)
	{
		getLogger().error("ModuleMediaCasterStreamManager.startMediaCasterStream: "+e.toString());
	}

	return success;
}

public void stopMediaCasterStream(String streamName)
{
	try
	{
		while(true)
		{
			MediaCasterStreamMap mediaCasterMap = appInstance.getMediaCasterStreams();
			MediaCasterStreamManager mediaCasterStreamManager = mediaCasterMap.getStreamManager();

			boolean success = mediaCasterStreamManager.stopStream(streamName);
			if (success)
			{
				getLogger().info("ModuleStreamStarter.stopMediaCasterStream: Stream stopped: "+streamName);
			}
			else
			{
				getLogger().warn("ModuleMediaCasterStreamManager.stopMediaCasterStream: Stream not found: "+streamName);
			}
			break;
		}
	}
	catch (Exception e)
	{
		getLogger().error("ModuleMediaCasterStreamManager.startMediaCasterStream: "+e.toString());
	}
}

So in your case to start/stop the stream it would be:

startMediaCasterStream("camera.sdp", "rtp");
stopMediaCasterStream("camera.sdp");

Charlie

[djos06]

Thank You so much !

I used Charlie's code because I need to stream RTP,
and now I can see the stream starting and playing in wowza logs.
But there is another thing I didn't success to do in my Record Module, it's to retreive the IMediaStream instance corresponding to the stream created.
My method to access the stream instance was :

IMediaStream stream = appInstance.getStreams().getStream(streamName);

but it returns always null !

How is it possible ?

[charlie]

Check the list of stream names. Maybe you have the wrong stream name:

appInstance.getStreams().getPublishStreamNames()

It will return the list of currently active stream names.

Charlie

[djos06]

ok It's works fine it was just an error in my code ...
Thank you again for your help it really helps me !