96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
|
/*
|
||
|
|
* 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_DESCRIPTOR_INCLUDED__
|
||
|
|
#define __MP4_DESCRIPTOR_INCLUDED__
|
||
|
|
|
||
|
|
class MP4Descriptor {
|
||
|
|
public:
|
||
|
|
MP4Descriptor(u_int8_t tag = 0);
|
||
|
|
|
||
|
|
virtual ~MP4Descriptor();
|
||
|
|
|
||
|
|
u_int8_t GetTag() {
|
||
|
|
return m_tag;
|
||
|
|
}
|
||
|
|
void SetTag(u_int8_t tag) {
|
||
|
|
m_tag = tag;
|
||
|
|
}
|
||
|
|
|
||
|
|
void SetParentAtom(MP4Atom* pParentAtom) {
|
||
|
|
m_pParentAtom = pParentAtom;
|
||
|
|
for (u_int32_t i = 0; i < m_pProperties.Size(); i++) {
|
||
|
|
m_pProperties[i]->SetParentAtom(pParentAtom);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void AddProperty(MP4Property* pProperty);
|
||
|
|
|
||
|
|
virtual void Generate();
|
||
|
|
virtual void Read(MP4File* pFile);
|
||
|
|
virtual void Write(MP4File* pFile);
|
||
|
|
|
||
|
|
MP4Property* GetProperty(u_int32_t index) {
|
||
|
|
return m_pProperties[index];
|
||
|
|
}
|
||
|
|
|
||
|
|
// use with extreme caution
|
||
|
|
void SetProperty(u_int32_t index, MP4Property* pProperty) {
|
||
|
|
m_pProperties[index] = pProperty;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool FindProperty(const char* name,
|
||
|
|
MP4Property** ppProperty, u_int32_t* pIndex = NULL) {
|
||
|
|
return FindContainedProperty(name, ppProperty, pIndex);
|
||
|
|
}
|
||
|
|
|
||
|
|
void WriteToMemory(MP4File* pFile,
|
||
|
|
u_int8_t** ppBytes, u_int64_t* pNumBytes);
|
||
|
|
|
||
|
|
protected:
|
||
|
|
void SetReadMutate(u_int32_t propIndex) {
|
||
|
|
m_readMutatePoint = propIndex;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ReadHeader(MP4File* pFile);
|
||
|
|
void ReadProperties(MP4File* pFile,
|
||
|
|
u_int32_t startIndex = 0, u_int32_t count = 0xFFFFFFFF);
|
||
|
|
|
||
|
|
virtual void Mutate() {
|
||
|
|
// default is a no-op
|
||
|
|
};
|
||
|
|
|
||
|
|
bool FindContainedProperty(const char* name,
|
||
|
|
MP4Property** ppProperty, u_int32_t* pIndex);
|
||
|
|
|
||
|
|
u_int8_t GetDepth();
|
||
|
|
|
||
|
|
protected:
|
||
|
|
MP4Atom* m_pParentAtom;
|
||
|
|
u_int8_t m_tag;
|
||
|
|
u_int64_t m_start;
|
||
|
|
u_int32_t m_size;
|
||
|
|
MP4PropertyArray m_pProperties;
|
||
|
|
u_int32_t m_readMutatePoint;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* __MP4_DESCRIPTOR_INCLUDED__ */
|