82 lines
1.8 KiB
C++
82 lines
1.8 KiB
C++
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// The authors have released ID3Lib as Public Domain (PD) and claim no copyright,
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// patent or other intellectual property protection in this work. This means that
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// it may be modified, redistributed and used in commercial and non-commercial
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// software and hardware without restrictions. ID3Lib is distributed on an "AS IS"
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// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
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//
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// The ID3Lib authors encourage improvements and optimisations to be sent to the
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// ID3Lib coordinator, currently Dirk Mahoney (dirk@id3.org). Approved
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// submissions may be altered, and will be included and released under these terms.
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//
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// Mon Nov 23 18:34:01 1998
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// improved/optimized/whatever 10/30/00 JF
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// improved/optimized/whatEVER jan-08-2006 benski
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#include "id3_field.h"
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#if 0 // taking out operators
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ID3_Field& ID3_Field::operator=(luint newData)
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{
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Set(newData);
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return *this;
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}
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#endif
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void ID3_Field::Set(luint newData)
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{
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Clear();
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data = reinterpret_cast<uchar *>(newData);
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size = sizeof(luint);
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type = ID3FTY_INTEGER;
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hasChanged = true;
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}
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luint ID3_Field::Get(void)
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{
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return (luint) data;
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}
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luint ID3_Field::ParseInteger(uchar *buffer, luint posn, luint buffSize)
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{
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luint bytesUsed = 0;
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if(buffer && buffSize)
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{
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luint i;
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luint temp = 0;
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bytesUsed = 4;
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if(fixedLength != -1)
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bytesUsed = MIN(fixedLength, bytesUsed);
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for(i = 0; i < bytesUsed; i++)
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temp |=(buffer[ posn + i ] <<(((bytesUsed - i) - 1) * 8));
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Set(temp);
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hasChanged = false;
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}
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return bytesUsed;
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}
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luint ID3_Field::RenderInteger(uchar *buffer)
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{
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luint bytesUsed = 0;
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luint length = BinSize();
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for(luint i = 0; i < length; i++)
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buffer[ i ] = (uchar)((((luint) data) >>(((length - i) - 1) * 8)) & 0xFF);
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bytesUsed = length;
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hasChanged = false;
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return bytesUsed;
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}
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