h263format.java

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

package javax.media.format;

import javax.media.Format;

import net.sf.fmj.utility.FormatUtils;

/**
 * Coding complete.
 * @author Ken Larson
 *
 */
public class H263Format extends VideoFormat
{

	private static String ENCODING = H263;

	protected int advancedPrediction = NOT_SPECIFIED;

	protected int arithmeticCoding = NOT_SPECIFIED;

	protected int errorCompensation = NOT_SPECIFIED;

	protected int hrDB = NOT_SPECIFIED; // strange, defaults to zero.

	protected int pbFrames = NOT_SPECIFIED;

	protected int unrestrictedVector = NOT_SPECIFIED;

	public H263Format()
	{
		super(ENCODING);
		dataType = Format.byteArray;

	}

	public H263Format(java.awt.Dimension size, int maxDataLength,
			Class dataType, float frameRate, int advancedPrediction,
			int arithmeticCoding, int errorCompensation, int hrDB,
			int pbFrames, int unrestrictedVector)
	{
		super(ENCODING, size, maxDataLength, dataType, frameRate);
		this.advancedPrediction = advancedPrediction;
		this.arithmeticCoding = arithmeticCoding;
		this.errorCompensation = errorCompensation;
		this.hrDB = hrDB;
		this.pbFrames = pbFrames;
		this.unrestrictedVector = unrestrictedVector;

	}

	public int getAdvancedPrediction()
	{
		return advancedPrediction;
	}

	public int getArithmeticCoding()
	{
		return arithmeticCoding;
	}

	public int getErrorCompensation()
	{
		return errorCompensation;
	}

	public int getHrDB()
	{
		return hrDB;
	}

	public int getPBFrames()
	{
		return pbFrames;
	}

	public int getUnrestrictedVector()
	{
		return unrestrictedVector;
	}
	
	public String toString()
	{
		return "H.263 video format";
	}

	public boolean equals(Object format)
	{
		if (!super.equals(format))
			return false;
		
		if (!(format instanceof H263Format))	
		{
			return false;
		}
		
		final H263Format oCast = (H263Format) format;
		return 
			this.advancedPrediction == oCast.advancedPrediction &&
			this.arithmeticCoding == oCast.arithmeticCoding &&
			this.errorCompensation == oCast.errorCompensation &&
			this.hrDB == oCast.hrDB &&
			this.pbFrames == oCast.pbFrames &&	
			this.unrestrictedVector == oCast.unrestrictedVector;	
	}

	public boolean matches(Format format)
	{
		if (!super.matches(format))
		{	
			FormatUtils.traceMatches(this, format, false);
			return false;
		}
		
		if (!(format instanceof H263Format))
		{	
			final boolean result = true;
			FormatUtils.traceMatches(this, format, result);
			return result;
		}
		
		final H263Format oCast = (H263Format) format;

		final boolean result = 
			FormatUtils.matches(this.advancedPrediction, oCast.advancedPrediction) &&
			FormatUtils.matches(this.arithmeticCoding, oCast.arithmeticCoding) &&
			FormatUtils.matches(this.errorCompensation, oCast.errorCompensation) &&
			FormatUtils.matches(this.hrDB, oCast.hrDB) &&
			FormatUtils.matches(this.pbFrames, oCast.pbFrames) &&	
			FormatUtils.matches(this.unrestrictedVector, oCast.unrestrictedVector);	
		
		FormatUtils.traceMatches(this, format, result);
		
		return result;
	}

	public Format intersects(Format other)
	{
		final Format result = super.intersects(other);

		if (other instanceof H263Format)
		{
			final H263Format resultCast = (H263Format) result;
			
			final H263Format oCast = (H263Format) other;
			if (getClass().isAssignableFrom(other.getClass()))
			{	
				// "other" was cloned.
				
				if (FormatUtils.specified(this.advancedPrediction))
					resultCast.advancedPrediction = this.advancedPrediction;
				if (FormatUtils.specified(this.arithmeticCoding))
					resultCast.arithmeticCoding = this.arithmeticCoding;
				if (FormatUtils.specified(this.errorCompensation))
					resultCast.errorCompensation = this.errorCompensation;
				if (FormatUtils.specified(this.hrDB))
					resultCast.hrDB = this.hrDB;
				if (FormatUtils.specified(this.pbFrames))
					resultCast.pbFrames = this.pbFrames;
				if (FormatUtils.specified(this.unrestrictedVector))
					resultCast.unrestrictedVector = this.unrestrictedVector;
				
			}
			else if (other.getClass().isAssignableFrom(getClass()))
			{	// this was cloned
				
				if (!FormatUtils.specified(resultCast.advancedPrediction))
					resultCast.advancedPrediction = oCast.advancedPrediction;
				if (!FormatUtils.specified(resultCast.arithmeticCoding))
					resultCast.arithmeticCoding = oCast.arithmeticCoding;
				if (!FormatUtils.specified(resultCast.errorCompensation))
					resultCast.errorCompensation = oCast.errorCompensation;
				if (!FormatUtils.specified(resultCast.hrDB))
					resultCast.hrDB = oCast.hrDB;
				if (!FormatUtils.specified(resultCast.pbFrames))
					resultCast.pbFrames = oCast.pbFrames;
				if (!FormatUtils.specified(resultCast.unrestrictedVector))
					resultCast.unrestrictedVector = oCast.unrestrictedVector;
			
			}
		}
		
		FormatUtils.traceIntersects(this, other, result);
		
		return result;
	}


	
	public Object clone()
	{
		return new H263Format(FormatUtils.clone(size), maxDataLength, dataType, frameRate,
				advancedPrediction, arithmeticCoding, errorCompensation, hrDB,
				pbFrames, unrestrictedVector);
	}

	protected void copy(Format f)
	{
		super.copy(f);
		final H263Format oCast = (H263Format) f;	// it has to be a H263Format, or ClassCastException will be thrown.
		this.advancedPrediction = oCast.advancedPrediction;
		this.arithmeticCoding = oCast.arithmeticCoding;
		this.errorCompensation = oCast.errorCompensation;
		this.hrDB = oCast.hrDB;
		this.pbFrames = oCast.pbFrames;	
		this.unrestrictedVector = oCast.unrestrictedVector;	
		
	}

	
	static
	{	// for Serializable compatibility.
	}
}