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// $Id: header.cpp,v 1.11 2002/07/31 13:20:49 t1mpy Exp $
// id3lib: a C++ library for creating and manipulating id3v1/v2 tags
// Copyright 1999, 2000 Scott Thomas Haug
// Copyright 2002 Thijmen Klok (thijmen@id3lib.org)
// This library is free software; you can redistribute it and/or modify it
// under the terms of the GNU Library General Public License as published by
// the Free Software Foundation; either version 2 of the License, or (at your
// option) any later version.
//
// This library is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
// License for more details.
//
// You should have received a copy of the GNU Library General Public License
// along with this library; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// The id3lib authors encourage improvements and optimisations to be sent to
// the id3lib coordinator. Please see the README file for details on where to
// send such submissions. See the AUTHORS file for a list of people who have
// contributed to id3lib. See the ChangeLog file for a list of changes to
// id3lib. These files are distributed with id3lib at
// http://download.sourceforge.net/id3lib/
#include "header.h"
#if defined HAVE_CONFIG_H
#include <config.h>
#endif
bool ID3_Header::SetSpec(ID3_V2Spec spec)
{
static ID3_Header::Info _spec_info[] =
{
// Warning, EXT SIZE are minimum sizes, they can be bigger
// SIZEOF SIZEOF SIZEOF IS EXT EXT EXPERIM
// FRID FRSZ FRFL HEADER SIZE BIT
{ 3, 3, 0, false, 0, false }, // ID3V2_2_0
{ 3, 3, 0, true, 8, true }, // ID3V2_2_1
{ 4, 4, 2, false, 10, false }, // ID3V2_3_0
{ 4, 4, 2, false, 6, false } // ID3V2_4_0
};
bool changed = false;
if (spec < ID3V2_EARLIEST || spec > ID3V2_LATEST)
{
changed = _spec != ID3V2_UNKNOWN;
_spec = ID3V2_UNKNOWN;
_info = NULL;
}
else
{
changed = _spec != spec;
_spec = spec;
_info = &_spec_info[_spec - ID3V2_EARLIEST];
}
_changed = _changed || changed;
return changed;
}
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