Initial community commit

Src/external_dependencies/libmp4v2/atom_d263.cpp

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+/*
+ * 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.
+ *
+ * 3GPP features implementation is based on 3GPP's TS26.234-v5.60,
+ * and was contributed by Ximpo Group Ltd.
+ *
+ * Portions created by Ximpo Group Ltd. are
+ * Copyright (C) Ximpo Group Ltd. 2003, 2004.  All Rights Reserved.
+ *
+ * Contributor(s):
+ *              Ximpo Group Ltd.          mp4v2@ximpo.com
+ */
+
+#include "mp4common.h"
+
+#define H263_VENDOR 0x6d346970
+
+MP4D263Atom::MP4D263Atom() 
+	: MP4Atom("d263") 
+{
+	AddProperty( /* 0 */
+		new MP4Integer32Property("vendor"));
+
+	AddProperty( /* 1 */
+		new MP4Integer8Property("decoderVersion"));
+
+	AddProperty( /* 2 */
+		new MP4Integer8Property("h263Level"));
+
+	AddProperty( /* 3 */
+		new MP4Integer8Property("h263Profile"));
+
+	ExpectChildAtom("bitr", Optional, OnlyOne);
+
+}
+
+void MP4D263Atom::Generate()
+{
+	MP4Atom::Generate();
+
+       ((MP4Integer32Property*)m_pProperties[0])->SetValue(H263_VENDOR);
+       ((MP4Integer8Property*)m_pProperties[1])->SetValue(1);
+
+}
+
+void MP4D263Atom::Write()
+{
+	// Check whether we have valid values in the bitr atom
+	// (if it exists, of course)
+	MP4Atom* bitrAtom = FindAtomMP4("d263.bitr");
+	if (bitrAtom) {
+		u_int32_t avgBitrate;
+		u_int32_t maxBitrate;
+
+		MP4Integer32Property* pProp;
+		bitrAtom->FindProperty("bitr.avgBitrate",
+			(MP4Property**)&pProp,
+			NULL);
+		ASSERT(pProp);
+		avgBitrate = pProp->GetValue();
+
+		bitrAtom->FindProperty("bitr.maxBitrate",
+			(MP4Property**)&pProp,
+			NULL);
+		ASSERT(pProp);
+		maxBitrate = pProp->GetValue();
+
+		if(!maxBitrate && !avgBitrate) {
+			DeleteChildAtom(bitrAtom);
+		}
+	}
+
+	MP4Atom::Write();
+}