1 files changed, 73 insertions, 0 deletions
diff --git a/src/atom_url.cpp b/src/atom_url.cpp
new file mode 100644
index 0000000..943f0b1
--- /dev/null
+++ b/src/atom_url.cpp
@@ -0,0 +1,73 @@
+/*
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is MPEG4IP.
+ *
+ * The Initial Developer of the Original Code is Cisco Systems Inc.
+ * Portions created by Cisco Systems Inc. are
+ * Copyright (C) Cisco Systems Inc. 2001.  All Rights Reserved.
+ *
+ * Contributor(s):
+ *      Dave Mackie     dmackie@cisco.com
+ */
+
+#include "src/impl.h"
+
+namespace mp4v2 {
+namespace impl {
+
+///////////////////////////////////////////////////////////////////////////////
+
+MP4UrlAtom::MP4UrlAtom(const char *type)
+        : MP4Atom(type)
+{
+    AddVersionAndFlags();
+    AddProperty(new MP4StringProperty("location"));
+}
+
+void MP4UrlAtom::Read()
+{
+    // read the version and flags properties
+    ReadProperties(0, 2);
+
+    // check if self-contained flag is set
+    if (!(GetFlags() & 1)) {
+        // if not then read url location
+        ReadProperties(2);
+    }
+
+    Skip(); // to end of atom
+}
+
+void MP4UrlAtom::Write()
+{
+    MP4StringProperty* pLocationProp =
+        (MP4StringProperty*)m_pProperties[2];
+
+    // if no url location has been set
+    // then set self-contained flag
+    // and don't attempt to write anything
+    if (pLocationProp->GetValue() == NULL) {
+        SetFlags(GetFlags() | 1);
+        pLocationProp->SetImplicit(true);
+    } else {
+        SetFlags(GetFlags() & 0xFFFFFE);
+        pLocationProp->SetImplicit(false);
+    }
+
+    // write atom as usual
+    MP4Atom::Write();
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+}
+} // namespace mp4v2::impl