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Diffstat (limited to 'Src/external_dependencies/libmp4v2/mp4array.h')
-rw-r--r-- | Src/external_dependencies/libmp4v2/mp4array.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/Src/external_dependencies/libmp4v2/mp4array.h b/Src/external_dependencies/libmp4v2/mp4array.h new file mode 100644 index 00000000..9c6861a5 --- /dev/null +++ b/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__ */ |