audiocodectest.java

FMJ（freedom media for java)是java视频开发的新选择

package net.sf.fmj.test.compat.codec;

import javax.media.Buffer;
import javax.media.Format;
import javax.media.ResourceUnavailableException;
import javax.media.format.AudioFormat;
import javax.media.format.VideoFormat;

import junit.framework.TestCase;

import com.ibm.media.codec.audio.AudioCodec;

/**
 * 
 * @author Ken Larson
 *
 */
public class AudioCodecTest extends TestCase
{

	public void testAudioCodec() throws ResourceUnavailableException
	{
		MyAudioCodec c = new MyAudioCodec();
		{
			Format[] f = c.getSupportedOutputFormats(null);
			assertTrue(f == null);
		}
		{
			Format[] f = c.getSupportedInputFormats();
			assertTrue(f == null);
		}
		
		AudioFormat[] d = new AudioFormat[0];
		c.setDefaultOutputFormats(d);
		
		
		{
			Format[] f = c.getSupportedOutputFormats(null);
			assertTrue(f == d);
		}
		{
			Format[] f = c.getSupportedInputFormats();
			assertTrue(f == null);
		}
		
		

	}
	
	public void testDePacketizer()
	{
		// this is interesting, we return a format array with {null} in it from a codec when it is
		// unhappy.  However, JMF is not very happy if this happens and can 
		// throw an NPE.
		
		com.sun.media.codec.audio.ulaw.DePacketizer c = new com.sun.media.codec.audio.ulaw.DePacketizer();
		c.open();
		Format[] f = c.getSupportedOutputFormats(new VideoFormat("xyz"));
		assertTrue(f.length == 1);
		assertTrue(f[0] == null);
		
	}
	
	public void testConstants()
	{
		assertEquals(AudioFormat.ALAW, "alaw");
	}
	
	static class MyAudioCodec extends AudioCodec
	{

		public int process(Buffer input, Buffer output)
		{
			return 0;
		}
		
		public void setDefaultOutputFormats(AudioFormat[] defaultOutputFormats)
		{
			this.defaultOutputFormats = defaultOutputFormats;
		}
		
	}
}