Initial community commit

Src/external_dependencies/libmp4v2/odcommands.cpp

@@ -0,0 +1,104 @@
+/*
+ * 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 "mp4common.h"
+
+MP4ODUpdateDescriptor::MP4ODUpdateDescriptor()
+	: MP4Descriptor(MP4ODUpdateODCommandTag)
+{
+	// just a container for ObjectDescriptors
+	AddProperty( /* 0 */
+		new MP4DescriptorProperty(NULL,
+			MP4FileODescrTag, 0, Required, Many));
+}
+
+MP4ODRemoveDescriptor::MP4ODRemoveDescriptor()
+	: MP4Descriptor(MP4ODRemoveODCommandTag)
+{
+	MP4Integer32Property* pCount = 
+		new MP4Integer32Property("entryCount"); 
+	pCount->SetImplicit();
+	AddProperty(pCount); /* 0 */
+
+	MP4TableProperty* pTable = 
+		new MP4TableProperty("entries", pCount);
+	AddProperty(pTable); /* 1 */
+
+	pTable->AddProperty( /* 1, 0 */
+		new MP4BitfieldProperty("objectDescriptorId", 10));
+}
+
+void MP4ODRemoveDescriptor::Read(MP4File* pFile)
+{
+	// table entry count computed from descriptor size
+	((MP4Integer32Property*)m_pProperties[0])->SetReadOnly(false);
+	((MP4Integer32Property*)m_pProperties[0])->SetValue((m_size * 8) / 10);
+	((MP4Integer32Property*)m_pProperties[0])->SetReadOnly(true);
+
+	MP4Descriptor::Read(pFile);
+}
+
+MP4ESUpdateDescriptor::MP4ESUpdateDescriptor()
+	: MP4Descriptor(MP4ESUpdateODCommandTag)
+{
+	AddProperty( /* 0 */
+		new MP4BitfieldProperty("objectDescriptorId", 10));
+	AddProperty( /* 1 */
+		new MP4BitfieldProperty("pad", 6));
+	AddProperty( /* 2 */
+		new MP4DescriptorProperty("esIdRefs",
+			MP4ESIDRefDescrTag, 0, Required, Many));
+}
+
+// LATER might be able to combine with ESUpdateDescriptor
+MP4ESRemoveDescriptor::MP4ESRemoveDescriptor()
+	: MP4Descriptor(MP4ESRemoveODCommandTag)
+{
+	AddProperty( /* 0 */
+		new MP4BitfieldProperty("objectDescriptorId", 10));
+	AddProperty( /* 1 */
+		new MP4BitfieldProperty("pad", 6));
+	AddProperty( /* 2 */
+		new MP4DescriptorProperty("esIdRefs",
+			MP4ESIDRefDescrTag, 0, Required, Many));
+}
+
+MP4Descriptor* CreateODCommand(u_int8_t tag) 
+{
+	MP4Descriptor* pDescriptor = NULL;
+
+	switch (tag) {
+	case MP4ODUpdateODCommandTag:
+		pDescriptor = new MP4ODUpdateDescriptor();
+		break;
+	case MP4ODRemoveODCommandTag:
+		pDescriptor = new MP4ODRemoveDescriptor();
+		break;
+	case MP4ESUpdateODCommandTag:
+		pDescriptor = new MP4ESUpdateDescriptor();
+		break;
+	case MP4ESRemoveODCommandTag:
+		pDescriptor = new MP4ESRemoveDescriptor();
+		break;
+	}
+	return pDescriptor;
+}
+