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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.
+ *
+ * Contributor(s):
+ *      Dave Mackie     dmackie@cisco.com
+ */
+
+#ifndef MP4V2_IMPL_DESCRIPTORS_H
+#define MP4V2_IMPL_DESCRIPTORS_H
+
+namespace mp4v2 {
+namespace impl {
+
+///////////////////////////////////////////////////////////////////////////////
+
+const uint8_t MP4ODescrTag                  = 0x01;
+const uint8_t MP4IODescrTag                 = 0x02;
+const uint8_t MP4ESDescrTag                 = 0x03;
+const uint8_t MP4DecConfigDescrTag          = 0x04;
+const uint8_t MP4DecSpecificDescrTag        = 0x05;
+const uint8_t MP4SLConfigDescrTag           = 0x06;
+const uint8_t MP4ContentIdDescrTag          = 0x07;
+const uint8_t MP4SupplContentIdDescrTag     = 0x08;
+const uint8_t MP4IPIPtrDescrTag             = 0x09;
+const uint8_t MP4IPMPPtrDescrTag            = 0x0A;
+const uint8_t MP4IPMPDescrTag               = 0x0B;
+const uint8_t MP4RegistrationDescrTag       = 0x0D;
+const uint8_t MP4ESIDIncDescrTag            = 0x0E;
+const uint8_t MP4ESIDRefDescrTag            = 0x0F;
+const uint8_t MP4FileIODescrTag             = 0x10;
+const uint8_t MP4FileODescrTag              = 0x11;
+const uint8_t MP4ExtProfileLevelDescrTag    = 0x13;
+const uint8_t MP4ExtDescrTagsStart          = 0x80;
+const uint8_t MP4ExtDescrTagsEnd            = 0xFE;
+
+class MP4BaseDescriptor : public MP4Descriptor {
+public:
+    MP4BaseDescriptor(uint8_t tag);
+};
+
+class MP4BytesDescriptor : public MP4Descriptor {
+public:
+    MP4BytesDescriptor(uint8_t tag);
+    void Read(MP4File* pFile);
+protected:
+    uint32_t m_size_offset; // size to adjust the size for the bytes property
+    uint32_t m_bytes_index; // index into properties for bytes property
+};
+
+class MP4IODescriptor : public MP4Descriptor {
+public:
+    MP4IODescriptor();
+    void Generate();
+protected:
+    void Mutate();
+};
+
+class MP4ODescriptor : public MP4Descriptor {
+public:
+    MP4ODescriptor();
+    void Generate();
+protected:
+    void Mutate();
+};
+
+
+class MP4ESDescriptor : public MP4Descriptor {
+public:
+    MP4ESDescriptor();
+protected:
+    void Mutate();
+};
+
+class MP4DecConfigDescriptor : public MP4Descriptor {
+public:
+    MP4DecConfigDescriptor();
+    void Generate();
+};
+
+
+class MP4SLConfigDescriptor : public MP4Descriptor {
+public:
+    MP4SLConfigDescriptor();
+    void Generate();
+    void Read(MP4File* pFile);
+protected:
+    void Mutate();
+};
+
+class MP4IPIPtrDescriptor : public MP4Descriptor {
+public:
+    MP4IPIPtrDescriptor();
+};
+
+class MP4ContentIdDescriptor : public MP4Descriptor {
+public:
+    MP4ContentIdDescriptor();
+    void Read(MP4File* pFile);
+protected:
+    void Mutate();
+};
+
+// associated values in descriptors
+
+// ES objectTypeId
+const uint8_t MP4SystemsV1ObjectType            = 0x01;
+const uint8_t MP4SystemsV2ObjectType            = 0x02;
+
+// ES streamType
+const uint8_t MP4ObjectDescriptionStreamType    = 0x01;
+const uint8_t MP4ClockReferenceStreamType       = 0x02;
+const uint8_t MP4SceneDescriptionStreamType     = 0x03;
+const uint8_t MP4VisualStreamType               = 0x04;
+const uint8_t MP4AudioStreamType                = 0x05;
+const uint8_t MP4Mpeg7StreamType                = 0x06;
+const uint8_t MP4IPMPStreamType                 = 0x07;
+const uint8_t MP4OCIStreamType                  = 0x08;
+const uint8_t MP4MPEGJStreamType                = 0x09;
+const uint8_t MP4UserPrivateStreamType          = 0x20;
+
+///////////////////////////////////////////////////////////////////////////////
+
+}
+} // namespace mp4v2::impl
+
+#endif // MP4V2_IMPL_DESCRIPTORS_H