inputsourcestream.java

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

package javax.media.protocol;

import java.io.IOException;

/**
 * Coding complete.
 * @author Ken Larson
 *
 */
public class InputSourceStream implements PullSourceStream
{

	protected java.io.InputStream stream;

	protected boolean eosReached;
	private ContentDescriptor contentDescriptor;

	public InputSourceStream(java.io.InputStream s, ContentDescriptor type)
	{
		stream = s;
		contentDescriptor = type;
	}

	public ContentDescriptor getContentDescriptor()
	{
		return contentDescriptor;

	}

	public long getContentLength()
	{
		return LENGTH_UNKNOWN;	// TODO
		

	}

	public boolean willReadBlock()
	{
		try
		{
			return stream.available() <= 0;
		} catch (IOException e)
		{
			return true;
		}

	}

	public int read(byte[] buffer, int offset, int length)
			throws java.io.IOException
	{
		int result = stream.read(buffer, offset, length);
		if (result == -1)
			eosReached = true;
		return result;

	}

	public void close() throws java.io.IOException
	{
		stream.close();

	}

	public boolean endOfStream()
	{
		return eosReached;

	}

	public Object[] getControls()
	{
		return new Object[0];
	}

	public Object getControl(String controlName)
	{
		return null;
	}
}