content: /*
   * Copyright (C) 2011-2014 GUIGUI Simon, fyhertz@gmail.com
   * 
   * This file is part of libstreaming (https://github.com/fyhertz/libstreaming)
   * 
   * Spydroid is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 3 of the License, or
   * (at your option) any later version.
   * 
   * This source code is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   * 
   * You should have received a copy of the GNU General Public License
   * along with this source code; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  package net.majorkernelpanic.streaming.audio;
  
  import java.io.IOException;
  import java.lang.reflect.Field;
  
  import net.majorkernelpanic.streaming.SessionBuilder;
  import net.majorkernelpanic.streaming.rtp.AMRNBPacketizer;
  import android.media.MediaRecorder;
  import android.service.textservice.SpellCheckerService.Session;
  
  /**
   * A class for streaming AAC from the camera of an android device using RTP.
   * You should use a {@link Session} instantiated with {@link SessionBuilder} instead of using this class directly.
   * Call {@link #setDestinationAddress(InetAddress)}, {@link #setDestinationPorts(int)} and {@link #setAudioQuality(AudioQuality)}
   * to configure the stream. You can then call {@link #start()} to start the RTP stream.
   * Call {@link #stop()} to stop the stream.
   */
  public class AMRNBStream extends AudioStream {
  
  	public AMRNBStream() {
  		super();
  
  		mPacketizer = new AMRNBPacketizer();
  
  		setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
  		
  		try {
  			// RAW_AMR was deprecated in API level 16.
  			Field deprecatedName = MediaRecorder.OutputFormat.class.getField("RAW_AMR");
  			setOutputFormat(deprecatedName.getInt(null));
  		} catch (Exception e) {
  			setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);
  		}
  		
  		setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
  		
  	}
  
  	/**
  	 * Starts the stream.
  	 */
  	public synchronized void start() throws IllegalStateException, IOException {
  		configure();
  		if (!mStreaming) {
  			super.start();
  		}
  	}
  	
  	public synchronized void configure() throws IllegalStateException, IOException {
  		super.configure();
  		mMode = MODE_MEDIARECORDER_API;
  		mQuality = mRequestedQuality.clone();
  	}
  	
  	/**
  	 * Returns a description of the stream using SDP. It can then be included in an SDP file.
  	 */	
  	public String getSessionDescription() {
  		return "m=audio "+String.valueOf(getDestinationPorts()[0])+" RTP/AVP 96\r\n" +
  				"a=rtpmap:96 AMR/8000\r\n" +
  				"a=fmtp:96 octet-align=1;\r\n";
  	}
  
  	@Override
  	protected void encodeWithMediaCodec() throws IOException {
  		super.encodeWithMediaRecorder();
  	}
  
  }
  