Added support for 3GPP meta data atoms

3GPP metadata is not supported, only iTunes Metadata
Format is supported.

Change-Id: I78b41c88788d5a43800c936e0ac0f98424515c62
diff --git a/tests/tests/media/res/raw/testvideo.3gp b/tests/tests/media/res/raw/testvideo.3gp
index 1503272..8329311 100644
--- a/tests/tests/media/res/raw/testvideo.3gp
+++ b/tests/tests/media/res/raw/testvideo.3gp
Binary files differ
diff --git a/tests/tests/media/src/android/media/cts/MediaMetadataRetrieverTest.java b/tests/tests/media/src/android/media/cts/MediaMetadataRetrieverTest.java
new file mode 100644
index 0000000..b090e27
--- /dev/null
+++ b/tests/tests/media/src/android/media/cts/MediaMetadataRetrieverTest.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * 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 android.media.cts;
+
+import com.android.cts.media.R;
+
+import android.content.res.AssetFileDescriptor;
+import android.content.res.Resources;
+import android.media.MediaMetadataRetriever;
+import android.test.AndroidTestCase;
+
+public class MediaMetadataRetrieverTest extends AndroidTestCase {
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+    }
+
+    @Override
+    protected void tearDown() throws Exception {
+        super.tearDown();
+    }
+
+    public void test3gppMetadata() {
+        MediaMetadataRetriever retriever = new MediaMetadataRetriever();
+
+        try {
+            Resources resources = getContext().getResources();
+            AssetFileDescriptor afd = resources.openRawResourceFd(R.raw.testvideo);
+
+            retriever.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
+
+            afd.close();
+        } catch (Exception e) {
+            fail("Unable to open file");
+        }
+
+        assertEquals("Title was other than expected",
+                "Title", retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_TITLE));
+
+        assertEquals("Artist was other than expected",
+                "UTF16LE エンディアン ",
+                retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ARTIST));
+
+        assertEquals("Album was other than expected",
+                "Test album",
+                retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ALBUM));
+
+        assertEquals("Track number was other than expected",
+                "10",
+                retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_CD_TRACK_NUMBER));
+
+        assertEquals("Year was other than expected",
+                "2013", retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_YEAR));
+
+        assertNull("Writer was unexpected present",
+                retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_WRITER));
+    }
+}