1 files changed, 95 insertions, 0 deletions
diff --git a/isoparser/src/main/java/com/coremedia/iso/IsoTypeWriter.java b/isoparser/src/main/java/com/coremedia/iso/IsoTypeWriter.java
new file mode 100644
index 0000000..6da6998
--- /dev/null
+++ b/isoparser/src/main/java/com/coremedia/iso/IsoTypeWriter.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2012 Sebastian Annies, 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;
+
+import java.nio.ByteBuffer;
+
+public final class IsoTypeWriter {
+
+    public static void writeUInt64(ByteBuffer bb, long u) {
+        bb.putLong(u);
+    }
+
+    public static void writeUInt32(ByteBuffer bb, long u) {
+        bb.putInt((int) u);
+
+    }
+
+    public static void writeUInt32BE(ByteBuffer bb, long u) {
+        assert u >= 0 && u <= 1L << 32 : "The given long is not in the range of uint32 (" + u + ")";
+        writeUInt16BE(bb, (int) u & 0xFFFF);
+        writeUInt16BE(bb, (int) ((u >> 16) & 0xFFFF));
+
+    }
+
+
+    public static void writeUInt24(ByteBuffer bb, int i) {
+        i = i & 0xFFFFFF;
+        writeUInt16(bb, i >> 8);
+        writeUInt8(bb, i);
+
+    }
+
+
+    public static void writeUInt16(ByteBuffer bb, int i) {
+        i = i & 0xFFFF;
+        writeUInt8(bb, i >> 8);
+        writeUInt8(bb, i & 0xFF);
+    }
+
+    public static void writeUInt16BE(ByteBuffer bb, int i) {
+        i = i & 0xFFFF;
+        writeUInt8(bb, i & 0xFF);
+        writeUInt8(bb, i >> 8);
+    }
+
+    public static void writeUInt8(ByteBuffer bb, int i) {
+        i = i & 0xFF;
+        bb.put((byte) i);
+    }
+
+
+    public static void writeFixedPont1616(ByteBuffer bb, double v) {
+        int result = (int) (v * 65536);
+        bb.put((byte) ((result & 0xFF000000) >> 24));
+        bb.put((byte) ((result & 0x00FF0000) >> 16));
+        bb.put((byte) ((result & 0x0000FF00) >> 8));
+        bb.put((byte) ((result & 0x000000FF)));
+    }
+
+    public static void writeFixedPont88(ByteBuffer bb, double v) {
+        short result = (short) (v * 256);
+        bb.put((byte) ((result & 0xFF00) >> 8));
+        bb.put((byte) ((result & 0x00FF)));
+    }
+
+    public static void writeIso639(ByteBuffer bb, String language) {
+        if (language.getBytes().length != 3) {
+            throw new IllegalArgumentException("\"" + language + "\" language string isn't exactly 3 characters long!");
+        }
+        int bits = 0;
+        for (int i = 0; i < 3; i++) {
+            bits += (language.getBytes()[i] - 0x60) << (2 - i) * 5;
+        }
+        writeUInt16(bb, bits);
+    }
+
+    public static void writeUtf8String(ByteBuffer bb, String string) {
+
+        bb.put(Utf8.convert(string));
+        writeUInt8(bb, 0);
+    }
+}