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A generic parser and writer for all ISO 14496 based files (MP4, Quicktime, DCF, PDCF, ...)

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/*
 * Copyright 2012 castLabs, Berlin
 *
 * Licensed under the Apache License, Version 2.0 (the License);
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an AS IS BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.googlecode.mp4parser.boxes.mp4.samplegrouping;

import java.nio.ByteBuffer;

/**
 * 

4cc = "{@value #TYPE}"

* roll_distance is a signed integer that gives the number of samples that must be decoded in order for * a sample to be decoded correctly. A positive value indicates the number of samples after the sample * that is a group member that must be decoded such that at the last of these recovery is complete, i.e. * the last sample is correct. A negative value indicates the number of samples before the sample that is * a group member that must be decoded in order for recovery to be complete at the marked sample. * The value zero must not be used; the sync sample table documents random access points for which * no recovery roll is needed. */ public class RollRecoveryEntry extends GroupEntry { public static final String TYPE = "roll"; private short rollDistance; @Override public String getType() { return TYPE; } public short getRollDistance() { return rollDistance; } public void setRollDistance(short rollDistance) { this.rollDistance = rollDistance; } @Override public void parse(ByteBuffer byteBuffer) { rollDistance = byteBuffer.getShort(); } @Override public ByteBuffer get() { ByteBuffer content = ByteBuffer.allocate(2); content.putShort(rollDistance); content.rewind(); return content; } @Override public boolean equals(Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } RollRecoveryEntry entry = (RollRecoveryEntry) o; if (rollDistance != entry.rollDistance) { return false; } return true; } @Override public int hashCode() { return (int) rollDistance; } }




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