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96 lines
2.4 KiB
C++
96 lines
2.4 KiB
C++
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is MPEG4IP.
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*
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* The Initial Developer of the Original Code is Cisco Systems Inc.
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* Portions created by Cisco Systems Inc. are
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* Copyright (C) Cisco Systems Inc. 2001. All Rights Reserved.
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*
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* Contributor(s):
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* Dave Mackie dmackie@cisco.com
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*/
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#ifndef __MP4_DESCRIPTOR_INCLUDED__
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#define __MP4_DESCRIPTOR_INCLUDED__
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class MP4Descriptor {
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public:
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MP4Descriptor(u_int8_t tag = 0);
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virtual ~MP4Descriptor();
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u_int8_t GetTag() {
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return m_tag;
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}
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void SetTag(u_int8_t tag) {
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m_tag = tag;
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}
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void SetParentAtom(MP4Atom* pParentAtom) {
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m_pParentAtom = pParentAtom;
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for (u_int32_t i = 0; i < m_pProperties.Size(); i++) {
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m_pProperties[i]->SetParentAtom(pParentAtom);
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}
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}
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void AddProperty(MP4Property* pProperty);
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virtual void Generate();
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virtual void Read(MP4File* pFile);
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virtual void Write(MP4File* pFile);
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MP4Property* GetProperty(u_int32_t index) {
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return m_pProperties[index];
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}
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// use with extreme caution
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void SetProperty(u_int32_t index, MP4Property* pProperty) {
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m_pProperties[index] = pProperty;
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}
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bool FindProperty(const char* name,
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MP4Property** ppProperty, u_int32_t* pIndex = NULL) {
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return FindContainedProperty(name, ppProperty, pIndex);
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}
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void WriteToMemory(MP4File* pFile,
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u_int8_t** ppBytes, u_int64_t* pNumBytes);
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protected:
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void SetReadMutate(u_int32_t propIndex) {
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m_readMutatePoint = propIndex;
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}
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void ReadHeader(MP4File* pFile);
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void ReadProperties(MP4File* pFile,
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u_int32_t startIndex = 0, u_int32_t count = 0xFFFFFFFF);
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virtual void Mutate() {
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// default is a no-op
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};
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bool FindContainedProperty(const char* name,
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MP4Property** ppProperty, u_int32_t* pIndex);
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u_int8_t GetDepth();
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protected:
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MP4Atom* m_pParentAtom;
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u_int8_t m_tag;
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u_int64_t m_start;
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u_int32_t m_size;
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MP4PropertyArray m_pProperties;
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u_int32_t m_readMutatePoint;
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};
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#endif /* __MP4_DESCRIPTOR_INCLUDED__ */
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