1 files changed, 79 insertions, 0 deletions
diff --git a/src/atom_tfhd.cpp b/src/atom_tfhd.cpp
new file mode 100644
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--- /dev/null
+++ b/src/atom_tfhd.cpp
@@ -0,0 +1,79 @@
+/*
+ * 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 {
+
+///////////////////////////////////////////////////////////////////////////////
+
+MP4TfhdAtom::MP4TfhdAtom()
+        : MP4Atom("tfhd")
+{
+    AddVersionAndFlags();   /* 0, 1 */
+    AddProperty( /* 2 */
+        new MP4Integer32Property("trackId"));
+}
+
+void MP4TfhdAtom::AddProperties(uint32_t flags)
+{
+    if (flags & 0x01) {
+        // note this property is signed 64!
+        AddProperty(
+            new MP4Integer64Property("baseDataOffset"));
+    }
+    if (flags & 0x02) {
+        AddProperty(
+            new MP4Integer32Property("sampleDescriptionIndex"));
+    }
+    if (flags & 0x08) {
+        AddProperty(
+            new MP4Integer32Property("defaultSampleDuration"));
+    }
+    if (flags & 0x10) {
+        AddProperty(
+            new MP4Integer32Property("defaultSampleSize"));
+    }
+    if (flags & 0x20) {
+        AddProperty(
+            new MP4Integer32Property("defaultSampleFlags"));
+    }
+}
+
+void MP4TfhdAtom::Read()
+{
+    /* read atom version, flags, and trackId */
+    ReadProperties(0, 3);
+
+    /* need to create the properties based on the atom flags */
+    AddProperties(GetFlags());
+
+    /* now we can read the remaining properties */
+    ReadProperties(3);
+
+    Skip(); // to end of atom
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+}
+} // namespace mp4v2::impl