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/*
* 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.coremedia.iso.IsoTypeReader;
import com.coremedia.iso.IsoTypeWriter;
import com.googlecode.mp4parser.AbstractFullBox;
import java.nio.ByteBuffer;
/**
* aligned(8) class TrackFragmentHeaderBox
* extends FullBox('tfhd', 0, tf_flags){
* unsigned int(32) track_ID;
* // all the following are optional fields
* unsigned int(64) base_data_offset;
* unsigned int(32) sample_description_index;
* unsigned int(32) default_sample_duration;
* unsigned int(32) default_sample_size;
* unsigned int(32) default_sample_flags
* }
*/
public class TrackFragmentHeaderBox extends AbstractFullBox {
public static final String TYPE = "tfhd";
private long trackId;
private long baseDataOffset = -1;
private long sampleDescriptionIndex;
private long defaultSampleDuration = -1;
private long defaultSampleSize = -1;
private SampleFlags defaultSampleFlags;
private boolean durationIsEmpty;
public TrackFragmentHeaderBox() {
super(TYPE);
}
protected long getContentSize() {
long size = 8;
int flags = getFlags();
if ((flags & 0x1) == 1) { //baseDataOffsetPresent
size += 8;
}
if ((flags & 0x2) == 0x2) { //sampleDescriptionIndexPresent
size += 4;
}
if ((flags & 0x8) == 0x8) { //defaultSampleDurationPresent
size += 4;
}
if ((flags & 0x10) == 0x10) { //defaultSampleSizePresent
size += 4;
}
if ((flags & 0x20) == 0x20) { //defaultSampleFlagsPresent
size += 4;
}
return size;
}
protected void getContent(ByteBuffer byteBuffer) {
writeVersionAndFlags(byteBuffer);
IsoTypeWriter.writeUInt32(byteBuffer, trackId);
if ((getFlags() & 0x1) == 1) { //baseDataOffsetPresent
IsoTypeWriter.writeUInt64(byteBuffer, getBaseDataOffset());
}
if ((getFlags() & 0x2) == 0x2) { //sampleDescriptionIndexPresent
IsoTypeWriter.writeUInt32(byteBuffer, getSampleDescriptionIndex());
}
if ((getFlags() & 0x8) == 0x8) { //defaultSampleDurationPresent
IsoTypeWriter.writeUInt32(byteBuffer, getDefaultSampleDuration());
}
if ((getFlags() & 0x10) == 0x10) { //defaultSampleSizePresent
IsoTypeWriter.writeUInt32(byteBuffer, getDefaultSampleSize());
}
if ((getFlags() & 0x20) == 0x20) { //defaultSampleFlagsPresent
defaultSampleFlags.getContent(byteBuffer);
}
}
@Override
public void _parseDetails(ByteBuffer content) {
parseVersionAndFlags(content);
trackId = IsoTypeReader.readUInt32(content);
if ((getFlags() & 0x1) == 1) { //baseDataOffsetPresent
baseDataOffset = IsoTypeReader.readUInt64(content);
}
if ((getFlags() & 0x2) == 0x2) { //sampleDescriptionIndexPresent
sampleDescriptionIndex = IsoTypeReader.readUInt32(content);
}
if ((getFlags() & 0x8) == 0x8) { //defaultSampleDurationPresent
defaultSampleDuration = IsoTypeReader.readUInt32(content);
}
if ((getFlags() & 0x10) == 0x10) { //defaultSampleSizePresent
defaultSampleSize = IsoTypeReader.readUInt32(content);
}
if ((getFlags() & 0x20) == 0x20) { //defaultSampleFlagsPresent
defaultSampleFlags = new SampleFlags(content);
}
if ((getFlags() & 0x10000) == 0x10000) { //durationIsEmpty
durationIsEmpty = true;
}
}
public boolean hasBaseDataOffset() {
return (getFlags() & 0x1) != 0;
}
public boolean hasSampleDescriptionIndex() {
return (getFlags() & 0x2) != 0;
}
public boolean hasDefaultSampleDuration() {
return (getFlags() & 0x8) != 0;
}
public boolean hasDefaultSampleSize() {
return (getFlags() & 0x10) != 0;
}
public boolean hasDefaultSampleFlags() {
return (getFlags() & 0x20) != 0;
}
public long getTrackId() {
return trackId;
}
public long getBaseDataOffset() {
return baseDataOffset;
}
public long getSampleDescriptionIndex() {
return sampleDescriptionIndex;
}
public long getDefaultSampleDuration() {
return defaultSampleDuration;
}
public long getDefaultSampleSize() {
return defaultSampleSize;
}
public SampleFlags getDefaultSampleFlags() {
return defaultSampleFlags;
}
public boolean isDurationIsEmpty() {
return durationIsEmpty;
}
public void setTrackId(long trackId) {
this.trackId = trackId;
}
public void setBaseDataOffset(long baseDataOffset) {
if (baseDataOffset == -1) {
setFlags(getFlags() & (Integer.MAX_VALUE ^ 0x1));
} else {
setFlags(getFlags() | 0x1); // activate the field
}
this.baseDataOffset = baseDataOffset;
}
public void setSampleDescriptionIndex(long sampleDescriptionIndex) {
if (sampleDescriptionIndex == -1) {
setFlags(getFlags() & (Integer.MAX_VALUE ^ 0x2));
} else {
setFlags(getFlags() | 0x2); // activate the field
}
this.sampleDescriptionIndex = sampleDescriptionIndex;
}
public void setDefaultSampleDuration(long defaultSampleDuration) {
setFlags(getFlags() | 0x8); // activate the field
this.defaultSampleDuration = defaultSampleDuration;
}
public void setDefaultSampleSize(long defaultSampleSize) {
setFlags(getFlags() | 0x10); // activate the field
this.defaultSampleSize = defaultSampleSize;
}
public void setDefaultSampleFlags(SampleFlags defaultSampleFlags) {
setFlags(getFlags() | 0x20); // activate the field
this.defaultSampleFlags = defaultSampleFlags;
}
public void setDurationIsEmpty(boolean durationIsEmpty) {
setFlags(getFlags() | 0x10000); // activate the field
this.durationIsEmpty = durationIsEmpty;
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
sb.append("TrackFragmentHeaderBox");
sb.append("{trackId=").append(trackId);
sb.append(", baseDataOffset=").append(baseDataOffset);
sb.append(", sampleDescriptionIndex=").append(sampleDescriptionIndex);
sb.append(", defaultSampleDuration=").append(defaultSampleDuration);
sb.append(", defaultSampleSize=").append(defaultSampleSize);
sb.append(", defaultSampleFlags=").append(defaultSampleFlags);
sb.append(", durationIsEmpty=").append(durationIsEmpty);
sb.append('}');
return sb.toString();
}
}
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