/*
* Copyright 2009 castLabs GmbH, 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.coremedia.iso.boxes.fragment;
import com.googlecode.mp4parser.boxes.mp4.objectdescriptors.BitReaderBuffer;
import com.googlecode.mp4parser.boxes.mp4.objectdescriptors.BitWriterBuffer;
import java.io.IOException;
import java.nio.ByteBuffer;
/**
* bit(6) reserved=0;
* unsigned int(2) sample_depends_on;
* unsigned int(2) sample_is_depended_on;
* unsigned int(2) sample_has_redundancy;
* bit(3) sample_padding_value;
* bit(1) sample_is_difference_sample;
* // i.e. when 1 signals a non-key or non-sync sample
* unsigned int(16) sample_degradation_priority;
*/
public class SampleFlags {
private int reserved;
private int sampleDependsOn;
private int sampleIsDependedOn;
private int sampleHasRedundancy;
private int samplePaddingValue;
private boolean sampleIsDifferenceSample;
private int sampleDegradationPriority;
public SampleFlags() {
}
public SampleFlags(ByteBuffer bb) {
BitReaderBuffer brb = new BitReaderBuffer(bb);
reserved = brb.readBits(6);
sampleDependsOn = brb.readBits(2);
sampleIsDependedOn = brb.readBits(2);
sampleHasRedundancy = brb.readBits(2);
samplePaddingValue = brb.readBits(3);
sampleIsDifferenceSample = brb.readBits(1) == 1;
sampleDegradationPriority = brb.readBits(16);
}
public void getContent(ByteBuffer os) {
BitWriterBuffer bitWriterBuffer = new BitWriterBuffer(os);
bitWriterBuffer.writeBits(reserved, 6);
bitWriterBuffer.writeBits(sampleDependsOn, 2);
bitWriterBuffer.writeBits(sampleIsDependedOn, 2);
bitWriterBuffer.writeBits(sampleHasRedundancy, 2);
bitWriterBuffer.writeBits(samplePaddingValue, 3);
bitWriterBuffer.writeBits(this.sampleIsDifferenceSample ? 1 : 0, 1);
bitWriterBuffer.writeBits(sampleDegradationPriority, 16);
}
public int getReserved() {
return reserved;
}
public void setReserved(int reserved) {
this.reserved = reserved;
}
/**
* @see #setSampleDependsOn(int)
*/
public int getSampleDependsOn() {
return sampleDependsOn;
}
/**
* sample_depends_on takes one of the following four values:
* <pre>
* 0: the dependency of this sample is unknown;
* 1: this sample does depend on others (not an I picture);
* 2: this sample does not depend on others (I picture);
* 3: reserved
* </pre>
*
*/
public void setSampleDependsOn(int sampleDependsOn) {
this.sampleDependsOn = sampleDependsOn;
}
/**
* @see #setSampleIsDependedOn(int)
*/
public int getSampleIsDependedOn() {
return sampleIsDependedOn;
}
/**
* sample_is_depended_on takes one of the following four values:
* <pre>
* 0: the dependency of other samples on this sample is unknown;
* 1: other samples may depend on this one (not disposable);
* 2: no other sample depends on this one (disposable);
* 3: reserved
* </pre>
*
*/
public void setSampleIsDependedOn(int sampleIsDependedOn) {
this.sampleIsDependedOn = sampleIsDependedOn;
}
/**
* @see #setSampleHasRedundancy(int)
*/
public int getSampleHasRedundancy() {
return sampleHasRedundancy;
}
/**
* sample_has_redundancy takes one of the following four values:
* <pre>
* 0: it is unknown whether there is redundant coding in this sample;
* 1: there is redundant coding in this sample;
* 2: there is no redundant coding in this sample;
* 3: reserved
* </pre>
*/
public void setSampleHasRedundancy(int sampleHasRedundancy) {
this.sampleHasRedundancy = sampleHasRedundancy;
}
public int getSamplePaddingValue() {
return samplePaddingValue;
}
public void setSamplePaddingValue(int samplePaddingValue) {
this.samplePaddingValue = samplePaddingValue;
}
public boolean isSampleIsDifferenceSample() {
return sampleIsDifferenceSample;
}
public void setSampleIsDifferenceSample(boolean sampleIsDifferenceSample) {
this.sampleIsDifferenceSample = sampleIsDifferenceSample;
}
public int getSampleDegradationPriority() {
return sampleDegradationPriority;
}
public void setSampleDegradationPriority(int sampleDegradationPriority) {
this.sampleDegradationPriority = sampleDegradationPriority;
}
@Override
public String toString() {
return "SampleFlags{" +
"reserved=" + reserved +
", sampleDependsOn=" + sampleDependsOn +
", sampleHasRedundancy=" + sampleHasRedundancy +
", samplePaddingValue=" + samplePaddingValue +
", sampleIsDifferenceSample=" + sampleIsDifferenceSample +
", sampleDegradationPriority=" + sampleDegradationPriority +
'}';
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
SampleFlags that = (SampleFlags) o;
if (reserved != that.reserved) return false;
if (sampleDegradationPriority != that.sampleDegradationPriority) return false;
if (sampleDependsOn != that.sampleDependsOn) return false;
if (sampleHasRedundancy != that.sampleHasRedundancy) return false;
if (sampleIsDependedOn != that.sampleIsDependedOn) return false;
if (sampleIsDifferenceSample != that.sampleIsDifferenceSample) return false;
if (samplePaddingValue != that.samplePaddingValue) return false;
return true;
}
@Override
public int hashCode() {
int result = reserved;
result = 31 * result + sampleDependsOn;
result = 31 * result + sampleIsDependedOn;
result = 31 * result + sampleHasRedundancy;
result = 31 * result + samplePaddingValue;
result = 31 * result + (sampleIsDifferenceSample ? 1 : 0);
result = 31 * result + sampleDegradationPriority;
return result;
}
}