| /* |
| * 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(); |
| } |
| } |