avivideoformat.java

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

package com.sun.media.format;

import java.awt.Dimension;

import javax.media.Format;
import javax.media.format.VideoFormat;

import net.sf.fmj.utility.FormatUtils;

/**
 * TODO: test
 * @author Ken Larson
 *
 */
public class AviVideoFormat extends VideoFormat
{
	protected int planes = NOT_SPECIFIED;
	protected int bitsPerPixel = NOT_SPECIFIED;
	protected int imageSize = NOT_SPECIFIED;
	protected int xPelsPerMeter = NOT_SPECIFIED;
	protected int yPelsPerMeter = NOT_SPECIFIED;
	protected int clrUsed = NOT_SPECIFIED;
	protected int clrImportant = NOT_SPECIFIED;
	protected byte[] codecSpecificHeader;
	
	public AviVideoFormat(String encoding)
	{
		super(encoding);
	}
	
	public AviVideoFormat(String encoding, Dimension size, int maxDataLength, Class dataType, float frameRate, 
			int planes, int bitsPerPixel, int imageSize, int xPelsPerMeter, int yPelsPerMeter, int clrUsed, int clrImportant, byte[] codecHeader)
	{
		super(encoding, size, maxDataLength, dataType, frameRate);
		this.planes = planes;
		this.bitsPerPixel = bitsPerPixel;
		this.imageSize = imageSize;
		this.xPelsPerMeter = xPelsPerMeter;
		this.yPelsPerMeter = yPelsPerMeter;
		this.clrUsed = clrUsed;
		this.clrImportant = clrImportant;
		this.codecSpecificHeader = codecHeader;
		
		
		
	}
	public int getPlanes()
	{	return planes;
	}
	public int getBitsPerPixel()
	{	return bitsPerPixel;
	}
	public int getImageSize()
	{	return imageSize;
	}
	public int getXPelsPerMeter()
	{	return xPelsPerMeter;
	}
	public int getYPelsPerMeter()
	{
		return yPelsPerMeter;
	}
	public int getClrUsed()
	{	return clrUsed;
	}
	public int getClrImportant()
	{	return clrImportant;
	}
	public byte[] getCodecSpecificHeader()
	{	return codecSpecificHeader;
	}
	public Object clone()
	{
		return new AviVideoFormat(encoding, size, maxDataLength, dataType, frameRate, 
				planes, bitsPerPixel, imageSize, xPelsPerMeter, yPelsPerMeter, clrUsed, clrImportant, codecSpecificHeader);

	}
	protected void copy(Format f)
	{
		super.copy(f);
		final AviVideoFormat oCast = (AviVideoFormat) f;	// it has to be a WavAudioFormat, or ClassCastException will be thrown.
		this.planes = oCast.planes;
		this.bitsPerPixel = oCast.bitsPerPixel;
		this.imageSize = oCast.imageSize;
		this.xPelsPerMeter = oCast.xPelsPerMeter;
		this.yPelsPerMeter = oCast.yPelsPerMeter;
		this.clrUsed = oCast.clrUsed;
		this.clrImportant = oCast.clrImportant;
		this.codecSpecificHeader = oCast.codecSpecificHeader;
	}
	public boolean equals(Object format)
	{
		if (!super.equals(format))
			return false;
		
		if (!(format instanceof AviVideoFormat))	
		{
			return false;
		}
		
		final AviVideoFormat oCast = (AviVideoFormat) format;
			return 
			this.planes == oCast.planes &&
			this.bitsPerPixel == oCast.bitsPerPixel &&
			this.imageSize == oCast.imageSize &&
			this.xPelsPerMeter == oCast.xPelsPerMeter &&
			this.yPelsPerMeter == oCast.yPelsPerMeter &&
			this.clrUsed == oCast.clrUsed &&
			this.clrImportant == oCast.clrImportant &&
			FormatUtils.byteArraysEqual(this.codecSpecificHeader, oCast.codecSpecificHeader);
	}
	public boolean matches(Format format)
	{
		if (!super.matches(format))
			return false;
		
		if (!(format instanceof AviVideoFormat))
			return true;
		
		final AviVideoFormat oCast = (AviVideoFormat) format;

		return 
			FormatUtils.matches(this.planes, oCast.planes) &&
			FormatUtils.matches(this.bitsPerPixel, oCast.bitsPerPixel) &&
			FormatUtils.matches(this.imageSize, oCast.imageSize) &&
			FormatUtils.matches(this.xPelsPerMeter, oCast.xPelsPerMeter) &&
			FormatUtils.matches(this.yPelsPerMeter, oCast.yPelsPerMeter) &&
			FormatUtils.matches(this.clrUsed, oCast.clrUsed) &&
			FormatUtils.matches(this.clrImportant, oCast.clrImportant);// &&
			//FormatUtils.matches(this.codecSpecificHeader, oCast.codecSpecificHeader);

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

		if (other instanceof AviVideoFormat)
		{
			final AviVideoFormat resultCast = (AviVideoFormat) result;
			
			final AviVideoFormat oCast = (AviVideoFormat) other;
			if (getClass().isAssignableFrom(other.getClass()))
			{	
				// "other" was cloned.
				
				if (FormatUtils.specified(this.planes))
					resultCast.planes = this.planes;
				if (FormatUtils.specified(this.bitsPerPixel))
					resultCast.bitsPerPixel = this.bitsPerPixel;
				if (FormatUtils.specified(this.imageSize))
					resultCast.imageSize = this.imageSize;
				if (FormatUtils.specified(this.xPelsPerMeter))
					resultCast.xPelsPerMeter = this.xPelsPerMeter;
				if (FormatUtils.specified(this.yPelsPerMeter))
					resultCast.yPelsPerMeter = this.yPelsPerMeter;
				if (FormatUtils.specified(this.clrUsed))
					resultCast.clrUsed = this.clrUsed;
				if (FormatUtils.specified(this.clrImportant))
					resultCast.clrImportant = this.clrImportant;
				if (FormatUtils.specified(this.codecSpecificHeader))
					resultCast.codecSpecificHeader = this.codecSpecificHeader;
				
				
			}
			else if (other.getClass().isAssignableFrom(getClass()))
			{	// this was cloned
				
				
				if (FormatUtils.specified(this.planes))
					resultCast.planes = oCast.planes;
				if (FormatUtils.specified(this.bitsPerPixel))
					resultCast.bitsPerPixel = oCast.bitsPerPixel;
				if (FormatUtils.specified(this.imageSize))
					resultCast.imageSize  = oCast.imageSize;
				if (FormatUtils.specified(this.xPelsPerMeter))
					resultCast.xPelsPerMeter = oCast.xPelsPerMeter;
				if (FormatUtils.specified(this.yPelsPerMeter))
					resultCast.yPelsPerMeter = oCast.yPelsPerMeter;
				if (FormatUtils.specified(this.clrUsed))
					resultCast.clrUsed = oCast.clrUsed;
				if (FormatUtils.specified(this.clrImportant))
					resultCast.clrImportant = oCast.clrImportant;
				if (!FormatUtils.specified(resultCast.codecSpecificHeader))
					resultCast.codecSpecificHeader = oCast.codecSpecificHeader;
				
			
			}
		}
		return result;
	}
	public Format relax()
	{
		final AviVideoFormat result = (AviVideoFormat) super.relax();
		result.imageSize = NOT_SPECIFIED;
		FormatUtils.traceRelax(this, result);

		return result;
	}
	public String toString()
	{
		final int extraBytes = codecSpecificHeader == null ? 0 : codecSpecificHeader.length;
		return super.toString() + " " + extraBytes + " extra bytes";	
	}
}