eu.mihosoft.vrl.ext.com.bric.qt.TimeToSampleAtom Maven / Gradle / Ivy

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Visual Reflection Library
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/*
 * @(#)TimeToSampleAtom.java
 *
 * Copyright (c) 2008 Jeremy Wood. All Rights Reserved.
 *
 * You have a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) You do not utilize the software in a manner
 * which is disparaging to the original author.
 *
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
 * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. THE AUTHOR SHALL NOT BE
 * LIABLE FOR ANY DAMAGES SUFFERED AS A RESULT OF USING, MODIFYING
 * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL THE
 * AUTHOR BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
 * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
 * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
 * OR INABILITY TO USE SOFTWARE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 */
package eu.mihosoft.vrl.ext.com.bric.qt;

import java.io.*;

import eu.mihosoft.vrl.ext.com.bric.io.GuardedOutputStream;

/** Time-to-sample atoms store duration information for a media samples.
 * The times used here are relative to an enclosing time scale.
 * 
 * This is not a public class because I expect to make some significant
 * changes to this project in the next year.
 * 
Use at your own risk.  This class (and its package) may change in future releases.
 * Not that I'm promising there will be future releases.  There may not be.  :)
 */
class TimeToSampleAtom extends LeafAtom {
	int version = 0;
	int flags = 0;
	TimeToSampleEntry[] table = new TimeToSampleEntry[0];
	
	public TimeToSampleAtom() {
		super(null);
	}
	
	public TimeToSampleAtom(Atom parent,InputStream in) throws IOException {
		super(parent);
		version = in.read();
		flags = read24Int(in);
		int entryCount = (int)read32Int(in);
		table = new TimeToSampleEntry[entryCount];
		for(int a = 0; asampleCount-many consecutive
 * samples have a duration of sampleDuration.
 * (The duration is relative to an enclosing time scale.)
 */
class TimeToSampleEntry {
	long sampleCount, sampleDuration;
	
	public TimeToSampleEntry(long count,long duration) {
		this.sampleCount = count;
		this.sampleDuration = duration;
	}
	
	public TimeToSampleEntry(InputStream in) throws IOException {
		sampleCount = Atom.read32Int(in);
		sampleDuration = Atom.read32Int(in);
	}
	
	public String toString() {
		return "["+sampleCount+", "+sampleDuration+"]";
	}
	
	protected void write(OutputStream out) throws IOException {
		Atom.write32Int(out, sampleCount);
		Atom.write32Int(out, sampleDuration);
	}
}