mirror of
https://github.com/WinampDesktop/winamp.git
synced 2024-12-28 23:26:07 +00:00
99 lines
2 KiB
C++
99 lines
2 KiB
C++
// The authors have released ID3Lib as Public Domain (PD) and claim no copyright,
|
|
// patent or other intellectual property protection in this work. This means that
|
|
// it may be modified, redistributed and used in commercial and non-commercial
|
|
// software and hardware without restrictions. ID3Lib is distributed on an "AS IS"
|
|
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
|
|
//
|
|
// The ID3Lib authors encourage improvements and optimisations to be sent to the
|
|
// ID3Lib coordinator, currently Dirk Mahoney (dirk@id3.org). Approved
|
|
// submissions may be altered, and will be included and released under these terms.
|
|
//
|
|
// Mon Nov 23 18:34:01 1998
|
|
|
|
|
|
#include <string.h>
|
|
#include <memory.h>
|
|
#include "id3_header.h"
|
|
#include "id3_error.h"
|
|
|
|
|
|
static ID3_HeaderInfo ID3_VersionInfo[4][3] =
|
|
{
|
|
// SIZEOF SIZEOF SIZEOF EXT EXT EXPERIM
|
|
// VER REV FRID FRSZ FRFL HEADER SIZE BIT
|
|
{
|
|
{ 2, 0, 3, 3, 0, false, 0, false },
|
|
{ 2, 1, 3, 3, 0, true, 8, true },
|
|
{0,},
|
|
},
|
|
{
|
|
{ 3, 0, 4, 4, 2, false, 10, false },
|
|
{0,},
|
|
},
|
|
{
|
|
{ 4, 0, 4, 4, 2, false, 10, false },
|
|
{0,},
|
|
},
|
|
{ 0 }
|
|
};
|
|
|
|
ID3_HeaderInfo *ID3_LookupHeaderInfo(uchar ver, uchar rev)
|
|
{
|
|
ID3_HeaderInfo *info = NULL;
|
|
size_t v=0,r=0;
|
|
|
|
while (ID3_VersionInfo[v][0].version != 0)
|
|
{
|
|
r=0;
|
|
if (ID3_VersionInfo[v][0].version == ver)
|
|
{
|
|
while (ID3_VersionInfo[v][r].version != 0)
|
|
{
|
|
if (ID3_VersionInfo[v][r].revision == rev)
|
|
{
|
|
goto found;
|
|
}
|
|
else
|
|
r++;
|
|
}
|
|
// later revision. still backwards compat so we'll stick with it.
|
|
r--;
|
|
goto found;
|
|
}
|
|
else
|
|
v++;
|
|
}
|
|
found:
|
|
|
|
if (ID3_VersionInfo[v][r].version != 0)
|
|
info = &ID3_VersionInfo[v][r];
|
|
|
|
return info;
|
|
}
|
|
|
|
ID3_Header::ID3_Header(void)
|
|
{
|
|
SetVersion(ID3_TAGVERSION, ID3_TAGREVISION);
|
|
dataSize = 0;
|
|
flags = 0;
|
|
}
|
|
|
|
void ID3_Header::SetVersion(uchar ver, uchar rev)
|
|
{
|
|
version = ver;
|
|
revision = rev;
|
|
info = ID3_LookupHeaderInfo(version, revision);
|
|
}
|
|
|
|
void ID3_Header::SetDataSize(luint newSize)
|
|
{
|
|
dataSize = newSize;
|
|
}
|
|
|
|
void ID3_Header::SetFlags(luint newFlags)
|
|
{
|
|
flags = newFlags;
|
|
}
|
|
|
|
|