1 files changed, 125 insertions, 0 deletions
diff --git a/isoparser/src/main/java/com/googlecode/mp4parser/boxes/mp4/samplegrouping/.svn/text-base/CencSampleEncryptionInformationGroupEntry.java.svn-base b/isoparser/src/main/java/com/googlecode/mp4parser/boxes/mp4/samplegrouping/.svn/text-base/CencSampleEncryptionInformationGroupEntry.java.svn-base
new file mode 100644
index 0000000..b54f4d9
--- /dev/null
+++ b/isoparser/src/main/java/com/googlecode/mp4parser/boxes/mp4/samplegrouping/.svn/text-base/CencSampleEncryptionInformationGroupEntry.java.svn-base
@@ -0,0 +1,125 @@
+/*
+ * 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 com.coremedia.iso.Hex;
+import com.coremedia.iso.IsoTypeReader;
+import com.coremedia.iso.IsoTypeWriter;
+
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+
+/**
+ * Each sample in a protected track shall be associated with an IsEncrypted flag, IV_Size, and KID.
+ * This can be accomplished by (a) relying on the default values in the TrackEncryptionBox
+ * (see 8.2), or (b) specifying the parameters by sample group, or (c) using a combination of these two techniques.
+ * <p/>
+ * When specifying the parameters by sample group, the SampleToGroupBox in the sample table or track
+ * fragment specifies which samples use which sample group description from the SampleGroupDescriptionBox.
+ */
+public class CencSampleEncryptionInformationGroupEntry extends GroupEntry {
+    public static final String TYPE = "seig";
+
+    private int isEncrypted;
+    private byte ivSize;
+    private byte[] kid = new byte[16];
+
+    @Override
+    public void parse(ByteBuffer byteBuffer) {
+        isEncrypted = IsoTypeReader.readUInt24(byteBuffer);
+        ivSize = (byte) IsoTypeReader.readUInt8(byteBuffer);
+        kid = new byte[16];
+        byteBuffer.get(kid);
+
+    }
+
+    @Override
+    public ByteBuffer get() {
+        ByteBuffer byteBuffer = ByteBuffer.allocate(20);
+        IsoTypeWriter.writeUInt24(byteBuffer, isEncrypted);
+        IsoTypeWriter.writeUInt8(byteBuffer, ivSize);
+        byteBuffer.put(kid);
+        byteBuffer.rewind();
+        return byteBuffer;
+    }
+
+    public int getEncrypted() {
+        return isEncrypted;
+    }
+
+    public void setEncrypted(int encrypted) {
+        isEncrypted = encrypted;
+    }
+
+    public byte getIvSize() {
+        return ivSize;
+    }
+
+    public void setIvSize(byte ivSize) {
+        this.ivSize = ivSize;
+    }
+
+    public byte[] getKid() {
+        return kid;
+    }
+
+    public void setKid(byte[] kid) {
+        assert kid.length == 16;
+        this.kid = kid;
+    }
+
+    @Override
+    public String toString() {
+        return "CencSampleEncryptionInformationGroupEntry{" +
+                "isEncrypted=" + isEncrypted +
+                ", ivSize=" + ivSize +
+                ", kid=" + Hex.encodeHex(kid) +
+                '}';
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        CencSampleEncryptionInformationGroupEntry that = (CencSampleEncryptionInformationGroupEntry) o;
+
+        if (isEncrypted != that.isEncrypted) {
+            return false;
+        }
+        if (ivSize != that.ivSize) {
+            return false;
+        }
+        if (!Arrays.equals(kid, that.kid)) {
+            return false;
+        }
+
+        return true;
+    }
+
+    @Override
+    public int hashCode() {
+        int result = isEncrypted;
+        result = 31 * result + (int) ivSize;
+        result = 31 * result + (kid != null ? Arrays.hashCode(kid) : 0);
+        return result;
+    }
+}