Feature request: Possibility to record small clips of x amount of seconds of a complete camera session

[al-sabr]

Greetings!

I would like to know how complicated is it to implement a feature that specify Mona that I want to record my Webcam and that I want that the recording being persisted like session1_00.flv, session1_01.flv, session1_02.flv, etc .... session1_x.flv inside of folder session1 which is the stream name.

I am using Adobe AIR with RTMP.

Thank you.

[al-sabr]

Mathieu, Thomas any tip about where to work for this?

[thomasjammet]

LUA implementation is a bit instable for now but you can try with the following script.
Just create the file main.lua in MonaServer www/ directory and copy the following lines :

function onConnection(client)

	function client:onRecordMedia(packet)
		client.file:write(tostring(packet))
	end

	function client:onAudio(track, tag, packet, reliable)
		client.recorder:writeAudio(tag, packet)
	end

	function client:onVideo(track, tag, packet, reliable)
		client.recorder:writeVideo(tag, packet)
	end

    function client:onPublish(publication)
		client.fileName = "dump_" .. publication.name .. "_" .. mona:time() .. ".flv"
		NOTE("Begin dumping file '", client.fileName ,"'")
		client.file = io.open(client.fileName, "wb")

		-- Create the FLV Media writer and start it
		client.recorder = mona:newMediaWriter("flv")
		client.recorder.onWrite = client.onRecordMedia
		client.recorder:beginMedia()

		-- Subscribe to the new publication
		client.subscription = mona:newSubscription(publication.name)
		client.subscription.onAudio = client.onAudio
		client.subscription.onVideo = client.onVideo
	end
	
	function client:onUnpublish(publication)
		if client.file then
			NOTE("End dumping file '" , client.fileName, "'")
			client.recorder:endMedia()
			client.file:close()
		end
	end
end

Sadly this is just a POC for now, we don't have time to make LUA stable for now, but at least you can try and see how it will work.

[al-sabr]

OK you thought I was talking about Lua. I was more asking C++ side so that such small features I could add with your guidance.

[thomasjammet]

The lua script are here to make it easier for users to implement a custom behavior.
If you need a C++ implementation this will cost more time to explain and we are too busy for this, I hope you understand.
Now if you want to start from your own you can try to implement your custom code here in onPublish function :
https://github.com/MonaSolutions/MonaServer2/blob/master/MonaTiny/sources/MonaTiny.cpp#L154

[al-sabr]

I really don't understand why extending Mona has to be dependant on Lua when you can create dynamic extension for any C++ code via the CppMicroservices framework which is perfectly suitable for that purpose.

Creating a bundle delivered as a DLL/SO file and handle during runtime via CppMicroservices is so much easier than having to rely on Lua.

As I mentioned earlier why not make Mona a dynamic server where we can add and remove new functionalities on the fly without getting out of C++?

Why no one gets the fact that compiled static code can also be hooked into a running application an make that code become dynamic?

[al-sabr]

Thanx for the answer I really appreciate the guidance.