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/*
* Copyright 2008 CoreMedia AG, Hamburg
*
* 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;
import com.coremedia.iso.IsoFile;
import com.coremedia.iso.IsoTypeReader;
import com.coremedia.iso.IsoTypeWriter;
import com.coremedia.iso.Utf8;
import com.googlecode.mp4parser.AbstractFullBox;
import java.nio.ByteBuffer;
/**
* The Scheme Type Box identifies the protection scheme. Resides in a Protection Scheme Information Box or
* an SRTP Process Box.
*
* @see com.coremedia.iso.boxes.SchemeInformationBox
*/
public class SchemeTypeBox extends AbstractFullBox {
public static final String TYPE = "schm";
String schemeType = " ";
long schemeVersion;
String schemeUri = null;
public SchemeTypeBox() {
super(TYPE);
}
public String getSchemeType() {
return schemeType;
}
public long getSchemeVersion() {
return schemeVersion;
}
public String getSchemeUri() {
return schemeUri;
}
public void setSchemeType(String schemeType) {
assert schemeType != null && schemeType.length() == 4 : "SchemeType may not be null or not 4 bytes long";
this.schemeType = schemeType;
}
public void setSchemeVersion(int schemeVersion) {
this.schemeVersion = schemeVersion;
}
public void setSchemeUri(String schemeUri) {
this.schemeUri = schemeUri;
}
protected long getContentSize() {
return 12 + (((getFlags() & 1) == 1) ? Utf8.utf8StringLengthInBytes(schemeUri) + 1 : 0);
}
@Override
public void _parseDetails(ByteBuffer content) {
parseVersionAndFlags(content);
schemeType = IsoTypeReader.read4cc(content);
schemeVersion = IsoTypeReader.readUInt32(content);
if ((getFlags() & 1) == 1) {
schemeUri = IsoTypeReader.readString(content);
}
}
@Override
protected void getContent(ByteBuffer byteBuffer) {
writeVersionAndFlags(byteBuffer);
byteBuffer.put(IsoFile.fourCCtoBytes(schemeType));
IsoTypeWriter.writeUInt32(byteBuffer, schemeVersion);
if ((getFlags() & 1) == 1) {
byteBuffer.put(Utf8.convert(schemeUri));
}
}
public String toString() {
StringBuilder buffer = new StringBuilder();
buffer.append("Schema Type Box[");
buffer.append("schemeUri=").append(schemeUri).append("; ");
buffer.append("schemeType=").append(schemeType).append("; ");
buffer.append("schemeVersion=").append(schemeUri).append("; ");
buffer.append("]");
return buffer.toString();
}
}
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