winamp/Src/external_dependencies/libmp4v2/atom_meta.cpp

118 lines
2.7 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):
* M. Bakker mbakker at nero.com
*
* Apple iTunes META data
*/
#include "mp4common.h"
MP4Meta1Atom::MP4Meta1Atom(const char *name)
: MP4Atom(name)
{
AddVersionAndFlags(); /* 0, 1 */
AddProperty(new MP4BytesProperty("metadata")); /* 2 */
}
void MP4Meta1Atom::Read()
{
// calculate size of the metadata from the atom size
((MP4BytesProperty*)m_pProperties[2])->SetValueSize(m_size - 4);
MP4Atom::Read();
}
MP4DataAtom::MP4DataAtom()
: MP4Atom("data")
{
AddVersionAndFlags(); /* 0, 1 */
AddReserved("reserved2", 4); /* 2 */
AddProperty(
new MP4BytesProperty("metadata")); /* 3 */
}
void MP4DataAtom::Read()
{
// calculate size of the metadata from the atom size
((MP4BytesProperty*)m_pProperties[3])->SetValueSize(m_size - 8);
MP4Atom::Read();
}
// MP4Meta2Atom is for \251nam and \251cmt flags, which appear differently
// in .mov and in itunes file. In .movs, they appear under udata, in
// itunes, they appear under ilst.
MP4Meta2Atom::MP4Meta2Atom (const char *name) : MP4Atom(name)
{
}
void MP4Meta2Atom::Read ()
{
MP4Atom *parent = GetParentAtom();
if (ATOMID(parent->GetType()) == ATOMID("udta")) {
// add data property
AddReserved("reserved2", 4); /* 0 */
AddProperty(
new MP4BytesProperty("metadata")); /* 1 */
((MP4BytesProperty*)m_pProperties[1])->SetValueSize(m_size - 4);
} else {
ExpectChildAtom("data", Required, OnlyOne);
}
MP4Atom::Read();
}
MP4Meta3Atom::MP4Meta3Atom (const char *name) : MP4Atom(name)
{
// add data property
AddReserved("reserved2", 4); /* 0 */
AddProperty(new MP4Integer16Property("language"));
MP4StringProperty *strProp = new MP4StringProperty("metadata");
strProp->SetUnicode(true);
AddProperty(strProp); /* 3 */
}
void MP4Meta3Atom::Read ()
{
MP4Atom::Read();
}
MP4Meta4Atom::MP4Meta4Atom (const char *name) : MP4Atom(name)
{
// add data property
AddReserved("reserved2", 4); /* 0 */
AddProperty(new MP4Integer16Property("metadata")); /* 1 */
}
void MP4Meta4Atom::Read ()
{
MP4Atom::Read();
}