Initial community commit

Src/external_dependencies/libmp4v2/mp4array.h

@@ -0,0 +1,136 @@
+/*
+ * 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 __MP4_ARRAY_INCLUDED__
+#define __MP4_ARRAY_INCLUDED__
+
+typedef u_int32_t MP4ArrayIndex;
+
+class MP4Array {
+public:
+	MP4Array() {
+		m_numElements = 0;
+		m_maxNumElements = 0;
+	}
+
+	inline bool ValidIndex(MP4ArrayIndex index) {
+		if (m_numElements == 0 || index > m_numElements - 1) {
+			return false;
+		}
+		return true;
+	}
+
+	inline MP4ArrayIndex Size(void) {
+		return m_numElements;
+	}
+
+	inline MP4ArrayIndex MaxSize(void) {
+		return m_maxNumElements;
+	}
+
+protected:
+	MP4ArrayIndex	m_numElements;
+	MP4ArrayIndex	m_maxNumElements;
+};
+
+// macro to generate subclasses
+// we use this as an alternative to templates
+// due to the excessive compile time price of extensive template usage
+
+template <class type>
+	class MP4TArray : public MP4Array 
+	{ 
+	public: 
+		MP4TArray() { 
+			m_elements = NULL; 
+		} 
+		
+		~MP4TArray() { 
+			MP4Free(m_elements); 
+		} 
+		
+		inline void Add(type newElement) { 
+			Insert(newElement, m_numElements); 
+		} 
+		
+		void Insert(type newElement, MP4ArrayIndex newIndex) { 
+			if (newIndex > m_numElements) { 
+				throw new MP4Error(ERANGE, "MP4Array::Insert"); 
+			}
+			if (m_numElements == m_maxNumElements) {
+				m_maxNumElements = MAX(m_maxNumElements, 1) * 2;
+				m_elements = (type*)MP4ReallocArray(m_elements,
+					m_maxNumElements, sizeof(type));
+			}
+			memmove(&m_elements[newIndex + 1], &m_elements[newIndex],
+				(m_numElements - newIndex) * sizeof(type));
+			m_elements[newIndex] = newElement;
+			m_numElements++;
+		} 
+		
+		void Delete(MP4ArrayIndex index) {
+			if (!ValidIndex(index)) { 
+				throw new MP4Error(ERANGE, "MP4Array::Delete"); 
+			} 
+			m_numElements--; 
+			if (index < m_numElements) { 
+			  memmove(&m_elements[index], &m_elements[index + 1], 
+			   	  (m_numElements - index) * sizeof(type)); 
+			} 
+		} 
+
+		void Resize(MP4ArrayIndex newSize) { 
+			m_numElements = newSize; 
+			m_maxNumElements = newSize; 
+			m_elements = (type*)MP4ReallocArray(m_elements, 
+				m_maxNumElements, sizeof(type)); 
+		} 
+		
+		type& operator[](MP4ArrayIndex index) { 
+			if (!ValidIndex(index)) { 
+				throw new MP4Error(ERANGE, "index %u of %u", "MP4Array::[]", index, m_numElements); 
+			} 
+			return m_elements[index]; 
+		} 
+		
+	protected: 
+		type*	m_elements; 
+	};
+
+#define MP4ARRAY_DECL(name, type) typedef MP4TArray<type> name##Array;
+
+MP4ARRAY_DECL(MP4Integer8, u_int8_t)
+
+MP4ARRAY_DECL(MP4Integer16, u_int16_t)
+
+MP4ARRAY_DECL(MP4Integer32, u_int32_t)
+
+MP4ARRAY_DECL(MP4Integer64, u_int64_t)
+
+MP4ARRAY_DECL(MP4Float32, float)
+
+MP4ARRAY_DECL(MP4Float64, double)
+
+MP4ARRAY_DECL(MP4String, char*)
+
+MP4ARRAY_DECL(MP4Bytes, u_int8_t*)
+
+#endif /* __MP4_ARRAY_INCLUDED__ */