aprsdroid/src/backend/AfskUploader.scala

package org.aprsdroid.app

import _root_.android.util.Log
import _root_.java.net.{InetAddress, DatagramSocket, DatagramPacket}
import _root_.net.ab0oo.aprs.parser.{APRSPacket, Digipeater, Parser}
import com.nogy.afu.soundmodem.{Message, APRSFrame, Afsk}

import com.jazzido.PacketDroid.{AudioBufferProcessor, PacketCallback}

class AfskUploader(service : AprsService, prefs : PrefsWrapper) extends AprsIsUploader(prefs)
		with PacketCallback {
	val TAG = "APRSdroid.Afsk"
	// frame prefix: bytes = milliseconds * baudrate / 8 / 1000
	var FrameLength = prefs.getStringInt("afsk.prefix", 1000)*1200/8/1000
	var Digis = prefs.getString("digi_path", "WIDE1-1")
	val output = new Afsk()
	val abp = new AudioBufferProcessor(this)
	
	def start() = {
		abp.start()
		true
	}

	def update(packet : APRSPacket) : String = {
		// Need to "parse" the packet in order to replace the Digipeaters
		packet.setDigipeaters(Digipeater.parseList(Digis, true))
		val from = packet.getSourceCall()
		val to = packet.getDestinationCall()
		val data = packet.getAprsInformation().toString()
		val msg = new APRSFrame(from,to,Digis,data,FrameLength).getMessage()
		output.sendMessage(msg)
		Log.d(TAG, "update(): From: " + from +" To: "+ to +" Via: " + Digis + " telling " + data)
		"AFSK OK"
	}

	def stop() {
		abp.stopRecording()
	}

	def received(data : Array[Byte]) {
		service.postSubmit(Parser.parseAX25(data).toString().trim())
	}
}