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Add my old WMA and MP4 code. It is disabled by default, must be explicitly enabled to be compiled.

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Scott: If you think this is really a bad idea, please revert.


git-svn-id: svn://anonsvn.kde.org/home/kde/trunk/kdesupport/taglib@883108 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
This commit is contained in:
Lukáš Lalinský
2008-11-12 08:17:11 +00:00
parent fa31fa29d7
commit 5df6ef092b
41 changed files with 3679 additions and 3 deletions
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1
taglib/mp4/CMakeLists.txt Normal file
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INSTALL( FILES mp4file.h mp4atom.h mp4tag.h mp4item.h mp4properties.h DESTINATION ${INCLUDE_INSTALL_DIR}/taglib)

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taglib/mp4/Makefile.am Normal file
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INCLUDES = \
-I$(top_srcdir)/taglib \
-I$(top_srcdir)/taglib/toolkit \
$(all_includes)
noinst_LTLIBRARIES = libmp4.la
libmp4_la_SOURCES = mp4atom.cpp mp4file.cpp mp4item.cpp mp4properties.cpp mp4tag.cpp
taglib_include_HEADERS = mp4atom.h mp4file.h mp4item.h mp4properties.h mp4tag.h
taglib_includedir = $(includedir)/taglib

175
taglib/mp4/mp4atom.cpp Normal file
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/**************************************************************************
copyright : (C) 2007 by Lukáš Lalinský
email : lalinsky@gmail.com
**************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef WITH_MP4
#include <tdebug.h>
#include <tstring.h>
#include "mp4atom.h"
using namespace TagLib;
const char *MP4::Atom::containers[10] = {
"moov", "udta", "mdia", "meta", "ilst",
"stbl", "minf", "moof", "traf", "trak",
};
MP4::Atom::Atom(File *file)
{
offset = file->tell();
ByteVector header = file->readBlock(8);
length = header.mid(0, 4).toUInt();
if (length == 1) {
debug("MP4: 64-bit atoms are not supported");
length = 0;
file->seek(0, File::End);
return;
}
if (length < 8) {
debug("MP4: Invalid atom size");
length = 0;
file->seek(0, File::End);
return;
}
name = header.mid(4, 4);
for(int i = 0; i < numContainers; i++) {
if(name == containers[i]) {
if(name == "meta") {
file->seek(4, File::Current);
}
while(file->tell() < offset + length) {
children.append(new MP4::Atom(file));
}
return;
}
}
file->seek(offset + length);
}
MP4::Atom::~Atom()
{
for(unsigned int i = 0; i < children.size(); i++) {
delete children[i];
}
children.clear();
}
MP4::Atom *
MP4::Atom::find(const char *name1, const char *name2, const char *name3, const char *name4)
{
if(name1 == 0) {
return this;
}
for(unsigned int i = 0; i < children.size(); i++) {
if(children[i]->name == name1) {
return children[i]->find(name2, name3, name4);
}
}
return 0;
}
MP4::AtomList
MP4::Atom::findall(const char *name, bool recursive)
{
MP4::AtomList result;
for(unsigned int i = 0; i < children.size(); i++) {
if(children[i]->name == name) {
result.append(children[i]);
}
if(recursive) {
result.append(children[i]->findall(name, recursive));
}
}
return result;
}
bool
MP4::Atom::path(MP4::AtomList &path, const char *name1, const char *name2, const char *name3)
{
path.append(this);
if(name1 == 0) {
return true;
}
for(unsigned int i = 0; i < children.size(); i++) {
if(children[i]->name == name1) {
return children[i]->path(path, name2, name3);
}
}
return false;
}
MP4::Atoms::Atoms(File *file)
{
file->seek(0, File::End);
long end = file->tell();
file->seek(0);
while(file->tell() + 8 <= end) {
atoms.append(new MP4::Atom(file));
}
}
MP4::Atoms::~Atoms()
{
for(unsigned int i = 0; i < atoms.size(); i++) {
delete atoms[i];
}
atoms.clear();
}
MP4::Atom *
MP4::Atoms::find(const char *name1, const char *name2, const char *name3, const char *name4)
{
for(unsigned int i = 0; i < atoms.size(); i++) {
if(atoms[i]->name == name1) {
return atoms[i]->find(name2, name3, name4);
}
}
return 0;
}
MP4::AtomList
MP4::Atoms::path(const char *name1, const char *name2, const char *name3, const char *name4)
{
MP4::AtomList path;
for(unsigned int i = 0; i < atoms.size(); i++) {
if(atoms[i]->name == name1) {
if(!atoms[i]->path(path, name2, name3, name4)) {
path.clear();
}
return path;
}
}
return path;
}
#endif

77
taglib/mp4/mp4atom.h Normal file
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/**************************************************************************
copyright : (C) 2007 by Lukáš Lalinský
email : lalinsky@gmail.com
**************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
// This file is not part of the public API!
#ifndef DO_NOT_DOCUMENT
#ifndef TAGLIB_MP4ATOM_H
#define TAGLIB_MP4ATOM_H
#include <tfile.h>
#include <tlist.h>
namespace TagLib {
namespace MP4 {
class Atom;
typedef TagLib::List<Atom *> AtomList;
class Atom
{
public:
Atom(File *file);
~Atom();
Atom *find(const char *name1, const char *name2 = 0, const char *name3 = 0, const char *name4 = 0);
bool path(AtomList &path, const char *name1, const char *name2 = 0, const char *name3 = 0);
AtomList findall(const char *name, bool recursive = false);
long offset;
long length;
TagLib::ByteVector name;
AtomList children;
private:
static const int numContainers = 10;
static const char *containers[10];
};
//! Root-level atoms
class Atoms
{
public:
Atoms(File *file);
~Atoms();
Atom *find(const char *name1, const char *name2 = 0, const char *name3 = 0, const char *name4 = 0);
AtomList path(const char *name1, const char *name2 = 0, const char *name3 = 0, const char *name4 = 0);
AtomList atoms;
};
}
}
#endif
#endif

111
taglib/mp4/mp4file.cpp Normal file
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/**************************************************************************
copyright : (C) 2007 by Lukáš Lalinský
email : lalinsky@gmail.com
**************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef WITH_MP4
#include <tdebug.h>
#include <tstring.h>
#include "mp4atom.h"
#include "mp4tag.h"
#include "mp4file.h"
using namespace TagLib;
class MP4::File::FilePrivate
{
public:
FilePrivate() : tag(0), atoms(0)
{
}
~FilePrivate()
{
if(atoms) {
delete atoms;
atoms = 0;
}
if(tag) {
delete tag;
tag = 0;
}
if(properties) {
delete properties;
properties = 0;
}
}
MP4::Tag *tag;
MP4::Atoms *atoms;
MP4::Properties *properties;
};
MP4::File::File(FileName file, bool readProperties, AudioProperties::ReadStyle audioPropertiesStyle)
: TagLib::File(file)
{
d = new FilePrivate;
read(readProperties, audioPropertiesStyle);
}
MP4::File::~File()
{
delete d;
}
MP4::Tag *
MP4::File::tag() const
{
return d->tag;
}
MP4::Properties *
MP4::File::audioProperties() const
{
return d->properties;
}
void
MP4::File::read(bool readProperties, Properties::ReadStyle audioPropertiesStyle)
{
if(!isValid())
return;
d->atoms = new Atoms(this);
d->tag = new Tag(this, d->atoms);
if(readProperties) {
d->properties = new Properties(this, d->atoms, audioPropertiesStyle);
}
}
bool
MP4::File::save()
{
return d->tag->save();
}
#endif

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taglib/mp4/mp4file.h Normal file
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/**************************************************************************
copyright : (C) 2007 by Lukáš Lalinský
email : lalinsky@gmail.com
**************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifndef TAGLIB_MP4FILE_H
#define TAGLIB_MP4FILE_H
#include <tag.h>
#include <tfile.h>
#include "taglib_export.h"
#include "mp4properties.h"
#include "mp4tag.h"
namespace TagLib {
//! An implementation of MP4 (AAC, ALAC, ...) metadata
namespace MP4 {
class Atoms;
/*!
* This implements and provides an interface for MP4 files to the
* TagLib::Tag and TagLib::AudioProperties interfaces by way of implementing
* the abstract TagLib::File API as well as providing some additional
* information specific to MP4 files.
*/
class TAGLIB_EXPORT File : public TagLib::File
{
public:
/*!
* Contructs an ASF file from \a file. If \a readProperties is true the
* file's audio properties will also be read using \a propertiesStyle. If
* false, \a propertiesStyle is ignored.
*
* \note In the current implementation, both \a readProperties and
* \a propertiesStyle are ignored.
*/
File(FileName file, bool readProperties = true, Properties::ReadStyle audioPropertiesStyle = Properties::Average);
/*!
* Destroys this instance of the File.
*/
virtual ~File();
/*!
* Returns a pointer to the MP4 tag of the file.
*
* MP4::Tag implements the tag interface, so this serves as the
* reimplementation of TagLib::File::tag().
*
* \note The Tag <b>is still</b> owned by the ASF::File and should not be
* deleted by the user. It will be deleted when the file (object) is
* destroyed.
*/
Tag *tag() const;
/*!
* Returns the MP4 audio properties for this file.
*/
Properties *audioProperties() const;
/*!
* Save the file.
*
* This returns true if the save was successful.
*/
bool save();
private:
void read(bool readProperties, Properties::ReadStyle audioPropertiesStyle);
class FilePrivate;
FilePrivate *d;
};
}
}
#endif

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taglib/mp4/mp4item.cpp Normal file
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/**************************************************************************
copyright : (C) 2007 by Lukáš Lalinský
email : lalinsky@gmail.com
**************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef WITH_MP4
#include <taglib.h>
#include <tdebug.h>
#include "mp4item.h"
using namespace TagLib;
class MP4::Item::ItemPrivate : public RefCounter
{
public:
ItemPrivate() : RefCounter(), valid(true) {}
bool valid;
union {
bool m_bool;
int m_int;
IntPair m_intPair;
};
StringList m_stringList;
};
MP4::Item::Item()
{
d = new ItemPrivate;
d->valid = false;
}
MP4::Item::Item(const Item &item) : d(item.d)
{
d->ref();
}
MP4::Item &
MP4::Item::operator=(const Item &item)
{
if(d->deref()) {
delete d;
}
d = item.d;
d->ref();
return *this;
}
MP4::Item::~Item()
{
if(d->deref()) {
delete d;
}
}
MP4::Item::Item(bool value)
{
d = new ItemPrivate;
d->m_bool = value;
}
MP4::Item::Item(int value)
{
d = new ItemPrivate;
d->m_int = value;
}
MP4::Item::Item(int value1, int value2)
{
d = new ItemPrivate;
d->m_intPair.first = value1;
d->m_intPair.second = value2;
}
MP4::Item::Item(const StringList &value)
{
d = new ItemPrivate;
d->m_stringList = value;
}
bool
MP4::Item::toBool() const
{
return d->m_bool;
}
int
MP4::Item::toInt() const
{
return d->m_int;
}
MP4::Item::IntPair
MP4::Item::toIntPair() const
{
return d->m_intPair;
}
StringList
MP4::Item::toStringList() const
{
return d->m_stringList;
}
bool
MP4::Item::isValid() const
{
return d->valid;
}
#endif

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taglib/mp4/mp4item.h Normal file
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/**************************************************************************
copyright : (C) 2007 by Lukáš Lalinský
email : lalinsky@gmail.com
**************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifndef TAGLIB_MP4ITEM_H
#define TAGLIB_MP4ITEM_H
#include <tstringlist.h>
#include "taglib_export.h"
namespace TagLib {
namespace MP4 {
class TAGLIB_EXPORT Item
{
public:
struct IntPair {
int first, second;
};
Item();
Item(const Item &item);
Item &operator=(const Item &item);
~Item();
Item(int value);
Item(bool value);
Item(int first, int second);
Item(const StringList &value);
int toInt() const;
bool toBool() const;
IntPair toIntPair() const;
StringList toStringList() const;
bool isValid() const;
private:
class ItemPrivate;
ItemPrivate *d;
};
}
}
#endif

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taglib/mp4/mp4properties.cpp Normal file
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/**************************************************************************
copyright : (C) 2007 by Lukáš Lalinský
email : lalinsky@gmail.com
**************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef WITH_MP4
#include <tdebug.h>
#include <tstring.h>
#include "mp4file.h"
#include "mp4atom.h"
#include "mp4properties.h"
using namespace TagLib;
class MP4::Properties::PropertiesPrivate
{
public:
PropertiesPrivate() : length(0), bitrate(0), sampleRate(0), channels(0), bitsPerSample(0) {}
int length;
int bitrate;
int sampleRate;
int channels;
int bitsPerSample;
};
MP4::Properties::Properties(File *file, MP4::Atoms *atoms, ReadStyle style)
: AudioProperties(style)
{
d = new PropertiesPrivate;
MP4::Atom *moov = atoms->find("moov");
if(!moov) {
debug("MP4: Atom 'moov' not found");
return;
}
MP4::Atom *trak = 0;
ByteVector data;
MP4::AtomList trakList = moov->findall("trak");
for (unsigned int i = 0; i < trakList.size(); i++) {
trak = trakList[i];
MP4::Atom *hdlr = trak->find("mdia", "hdlr");
if(!hdlr) {
debug("MP4: Atom 'trak.mdia.hdlr' not found");
return;
}
file->seek(hdlr->offset);
data = file->readBlock(hdlr->length);
if(data.mid(16, 4) == "soun") {
break;
}
trak = 0;
}
if (!trak) {
debug("MP4: No audio tracks");
return;
}
MP4::Atom *mdhd = trak->find("mdia", "mdhd");
if(!mdhd) {
debug("MP4: Atom 'trak.mdia.mdhd' not found");
return;
}
file->seek(mdhd->offset);
data = file->readBlock(mdhd->length);
if(data[8] == 0) {
unsigned int unit = data.mid(20, 4).toUInt();
unsigned int length = data.mid(24, 4).toUInt();
d->length = length / unit;
}
else {
long long unit = data.mid(28, 8).toLongLong();
long long length = data.mid(36, 8).toLongLong();
d->length = int(length / unit);
}
MP4::Atom *atom = trak->find("mdia", "minf", "stbl", "stsd");
if(!atom) {
return;
}
file->seek(atom->offset);
data = file->readBlock(atom->length);
if(data.mid(20, 4) == "mp4a") {
d->channels = data.mid(40, 2).toShort();
d->bitsPerSample = data.mid(42, 2).toShort();
d->sampleRate = data.mid(46, 4).toUInt();
if(data.mid(56, 4) == "esds" && data[64] == 0x03) {
long pos = 65;
if(data.mid(pos, 3) == "\x80\x80\x80") {
pos += 3;
}
pos += 4;
if(data[pos] == 0x04) {
pos += 1;
if(data.mid(pos, 3) == "\x80\x80\x80") {
pos += 3;
}
pos += 10;
d->bitrate = (data.mid(pos, 4).toUInt() + 500) / 1000;
}
}
}
}
MP4::Properties::~Properties()
{
delete d;
}
int
MP4::Properties::channels() const
{
return d->channels;
}
int
MP4::Properties::sampleRate() const
{
return d->sampleRate;
}
int
MP4::Properties::length() const
{
return d->length;
}
int
MP4::Properties::bitrate() const
{
return d->bitrate;
}
int
MP4::Properties::bitsPerSample() const
{
return d->bitsPerSample;
}
#endif

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/**************************************************************************
copyright : (C) 2007 by Lukáš Lalinský
email : lalinsky@gmail.com
**************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifndef TAGLIB_MP4PROPERTIES_H
#define TAGLIB_MP4PROPERTIES_H
#include "taglib_export.h"
#include "audioproperties.h"
namespace TagLib {
namespace MP4 {
class Atoms;
class File;
//! An implementation of MP4 audio properties
class TAGLIB_EXPORT Properties : public AudioProperties
{
public:
Properties(File *file, Atoms *atoms, ReadStyle style = Average);
virtual ~Properties();
virtual int length() const;
virtual int bitrate() const;
virtual int sampleRate() const;
virtual int channels() const;
virtual int bitsPerSample() const;
private:
class PropertiesPrivate;
PropertiesPrivate *d;
};
}
}
#endif

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/**************************************************************************
copyright : (C) 2007 by Lukáš Lalinský
email : lalinsky@gmail.com
**************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef WITH_MP4
#include <tdebug.h>
#include <tstring.h>
#include "mp4atom.h"
#include "mp4tag.h"
using namespace TagLib;
class MP4::Tag::TagPrivate
{
public:
TagPrivate() : file(0), atoms(0) {}
~TagPrivate() {}
File *file;
Atoms *atoms;
ItemListMap items;
};
MP4::Tag::Tag(File *file, MP4::Atoms *atoms)
{
d = new TagPrivate;
d->file = file;
d->atoms = atoms;
MP4::Atom *ilst = atoms->find("moov", "udta", "meta", "ilst");
if(!ilst) {
//debug("Atom moov.udta.meta.ilst not found.");
return;
}
for(unsigned int i = 0; i < ilst->children.size(); i++) {
MP4::Atom *atom = ilst->children[i];
file->seek(atom->offset + 8);
if(atom->name == "----") {
parseFreeForm(atom, file);
}
else if(atom->name == "trkn" || atom->name == "disk") {
parseIntPair(atom, file);
}
else if(atom->name == "cpil" || atom->name == "pgap" || atom->name == "pcst") {
parseBool(atom, file);
}
else if(atom->name == "tmpo") {
parseInt(atom, file);
}
else {
parseText(atom, file);
}
}
}
ByteVectorList
MP4::Tag::parseData(MP4::Atom *atom, TagLib::File *file, int expectedFlags, bool freeForm)
{
ByteVectorList result;
ByteVector data = file->readBlock(atom->length - 8);
int i = 0;
unsigned int pos = 0;
while(pos < data.size()) {
int length = data.mid(pos, 4).toUInt();
ByteVector name = data.mid(pos + 4, 4);
int flags = data.mid(pos + 8, 4).toUInt();
if(freeForm && i < 2) {
if(i == 0 && name != "mean") {
debug("MP4: Unexpected atom \"" + name + "\", expecting \"mean\"");
return result;
}
else if(i == 1 && name != "name") {
debug("MP4: Unexpected atom \"" + name + "\", expecting \"name\"");
return result;
}
result.append(data.mid(pos + 12, length - 12));
}
else {
if(name != "data") {
debug("MP4: Unexpected atom \"" + name + "\", expecting \"data\"");
return result;
}
if(expectedFlags == -1 || flags == expectedFlags) {
result.append(data.mid(pos + 16, length - 16));
}
}
pos += length;
i++;
}
return result;
}
void
MP4::Tag::parseInt(MP4::Atom *atom, TagLib::File *file)
{
ByteVectorList data = parseData(atom, file);
if(data.size()) {
d->items.insert(atom->name, (int)data[0].toShort());
}
}
void
MP4::Tag::parseIntPair(MP4::Atom *atom, TagLib::File *file)
{
ByteVectorList data = parseData(atom, file);
if(data.size()) {
int a = data[0].mid(2, 2).toShort();
int b = data[0].mid(4, 2).toShort();
d->items.insert(atom->name, MP4::Item(a, b));
}
}
void
MP4::Tag::parseBool(MP4::Atom *atom, TagLib::File *file)
{
ByteVectorList data = parseData(atom, file);
if(data.size()) {
d->items.insert(atom->name, data[0][0] != '\0');
}
}
void
MP4::Tag::parseText(MP4::Atom *atom, TagLib::File *file, int expectedFlags)
{
ByteVectorList data = parseData(atom, file, expectedFlags);
if(data.size()) {
StringList value;
for(unsigned int i = 0; i < data.size(); i++) {
value.append(String(data[i], String::UTF8));
}
d->items.insert(atom->name, value);
}
}
void
MP4::Tag::parseFreeForm(MP4::Atom *atom, TagLib::File *file)
{
ByteVectorList data = parseData(atom, file, 1, true);
if(data.size() > 2) {
StringList value;
for(unsigned int i = 2; i < data.size(); i++) {
value.append(String(data[i], String::UTF8));
}
String name = "----:" + data[0] + ":" + data[1];
d->items.insert(name, value);
}
}
ByteVector
MP4::Tag::padIlst(const ByteVector &data, int length)
{
if (length == -1) {
length = ((data.size() + 1023) & ~1023) - data.size();
}
return renderAtom("free", ByteVector(length, '\1'));
}
ByteVector
MP4::Tag::renderAtom(const ByteVector &name, const ByteVector &data)
{
return ByteVector::fromUInt(data.size() + 8) + name + data;
}
ByteVector
MP4::Tag::renderData(const ByteVector &name, int flags, const ByteVectorList &data)
{
ByteVector result;
for(unsigned int i = 0; i < data.size(); i++) {
result.append(renderAtom("data", ByteVector::fromUInt(flags) + ByteVector(4, '\0') + data[i]));
}
return renderAtom(name, result);
}
ByteVector
MP4::Tag::renderBool(const ByteVector &name, MP4::Item &item)
{
ByteVectorList data;
data.append(ByteVector(1, item.toBool() ? '\1' : '\0'));
return renderData(name, 0x15, data);
}
ByteVector
MP4::Tag::renderInt(const ByteVector &name, MP4::Item &item)
{
ByteVectorList data;
data.append(ByteVector::fromShort(item.toInt()));
return renderData(name, 0x15, data);
}
ByteVector
MP4::Tag::renderIntPair(const ByteVector &name, MP4::Item &item)
{
ByteVectorList data;
data.append(ByteVector(2, '\0') +
ByteVector::fromShort(item.toIntPair().first) +
ByteVector::fromShort(item.toIntPair().second) +
ByteVector(2, '\0'));
return renderData(name, 0x15, data);
}
ByteVector
MP4::Tag::renderIntPairNoTrailing(const ByteVector &name, MP4::Item &item)
{
ByteVectorList data;
data.append(ByteVector(2, '\0') +
ByteVector::fromShort(item.toIntPair().first) +
ByteVector::fromShort(item.toIntPair().second));
return renderData(name, 0x15, data);
}
ByteVector
MP4::Tag::renderText(const ByteVector &name, MP4::Item &item, int flags)
{
ByteVectorList data;
StringList value = item.toStringList();
for(unsigned int i = 0; i < value.size(); i++) {
data.append(value[i].data(String::UTF8));
}
return renderData(name, flags, data);
}
ByteVector
MP4::Tag::renderFreeForm(const String &name, MP4::Item &item)
{
StringList header = StringList::split(name, ":");
if (header.size() != 3) {
debug("MP4: Invalid free-form item name \"" + name + "\"");
return ByteVector::null;
}
ByteVector data;
data.append(renderAtom("mean", ByteVector::fromUInt(0) + header[1].data(String::UTF8)));
data.append(renderAtom("name", ByteVector::fromUInt(0) + header[2].data(String::UTF8)));
StringList value = item.toStringList();
for(unsigned int i = 0; i < value.size(); i++) {
data.append(renderAtom("data", ByteVector::fromUInt(1) + ByteVector(4, '\0') + value[i].data(String::UTF8)));
}
return renderAtom("----", data);
}
bool
MP4::Tag::save()
{
ByteVector data;
for(MP4::ItemListMap::Iterator i = d->items.begin(); i != d->items.end(); i++) {
const String name = i->first;
if(name.startsWith("----")) {
data.append(renderFreeForm(name, i->second));
}
else if(name == "trkn") {
data.append(renderIntPair(name.data(String::Latin1), i->second));
}
else if(name == "disk") {
data.append(renderIntPairNoTrailing(name.data(String::Latin1), i->second));
}
else if(name == "cpil" || name == "pgap" || name == "pcst") {
data.append(renderBool(name.data(String::Latin1), i->second));
}
else if(name == "tmpo") {
data.append(renderInt(name.data(String::Latin1), i->second));
}
else if(name.size() == 4){
data.append(renderText(name.data(String::Latin1), i->second));
}
else {
debug("MP4: Unknown item name \"" + name + "\"");
}
}
data = renderAtom("ilst", data);
AtomList path = d->atoms->path("moov", "udta", "meta", "ilst");
if(path.size() == 4) {
saveExisting(data, path);
}
else {
saveNew(data);
}
return true;
}
void
MP4::Tag::updateParents(AtomList &path, long delta, int ignore)
{
for(unsigned int i = 0; i < path.size() - ignore; i++) {
d->file->seek(path[i]->offset);
long size = d->file->readBlock(4).toUInt() + delta;
d->file->seek(path[i]->offset);
d->file->writeBlock(ByteVector::fromUInt(size));
}
}
void
MP4::Tag::updateOffsets(long delta, long offset)
{
MP4::Atom *moov = d->atoms->find("moov");
if(moov) {
MP4::AtomList stco = moov->findall("stco", true);
for(unsigned int i = 0; i < stco.size(); i++) {
MP4::Atom *atom = stco[i];
if(atom->offset > offset) {
atom->offset += delta;
}
d->file->seek(atom->offset + 12);
ByteVector data = d->file->readBlock(atom->length - 12);
unsigned int count = data.mid(0, 4).toUInt();
d->file->seek(atom->offset + 16);
int pos = 4;
while(count--) {
long o = data.mid(pos, 4).toUInt();
if(o > offset) {
o += delta;
}
d->file->writeBlock(ByteVector::fromUInt(o));
pos += 4;
}
}
MP4::AtomList co64 = moov->findall("co64", true);
for(unsigned int i = 0; i < co64.size(); i++) {
MP4::Atom *atom = co64[i];
if(atom->offset > offset) {
atom->offset += delta;
}
d->file->seek(atom->offset + 12);
ByteVector data = d->file->readBlock(atom->length - 12);
unsigned int count = data.mid(0, 4).toUInt();
d->file->seek(atom->offset + 16);
int pos = 4;
while(count--) {
long long o = data.mid(pos, 8).toLongLong();
if(o > offset) {
o += delta;
}
d->file->writeBlock(ByteVector::fromLongLong(o));
pos += 8;
}
}
}
MP4::Atom *moof = d->atoms->find("moof");
if(moof) {
MP4::AtomList tfhd = moof->findall("tfhd", true);
for(unsigned int i = 0; i < tfhd.size(); i++) {
MP4::Atom *atom = tfhd[i];
if(atom->offset > offset) {
atom->offset += delta;
}
d->file->seek(atom->offset + 9);
ByteVector data = d->file->readBlock(atom->offset - 9);
unsigned int flags = (ByteVector(1, '\0') + data.mid(0, 3)).toUInt();
if(flags & 1) {
long long o = data.mid(7, 8).toLongLong();
if(o > offset) {
o += delta;
}
d->file->seek(atom->offset + 16);
d->file->writeBlock(ByteVector::fromLongLong(o));
}
}
}
}
void
MP4::Tag::saveNew(ByteVector &data)
{
data = renderAtom("meta", TagLib::ByteVector(4, '\0') +
renderAtom("hdlr", TagLib::ByteVector(8, '\0') + TagLib::ByteVector("mdirappl") + TagLib::ByteVector(9, '\0')) +
data + padIlst(data));
AtomList path = d->atoms->path("moov", "udta");
if(path.size() != 2) {
path = d->atoms->path("moov");
data = renderAtom("udta", data);
}
long offset = path[path.size() - 1]->offset + 8;
d->file->insert(data, offset, 0);
updateParents(path, data.size());
updateOffsets(data.size(), offset);
}
void
MP4::Tag::saveExisting(ByteVector &data, AtomList &path)
{
MP4::Atom *ilst = path[path.size() - 1];
long offset = ilst->offset;
long length = ilst->length;
MP4::Atom *meta = path[path.size() - 2];
AtomList::Iterator index = meta->children.find(ilst);
if(index != meta->children.begin()) {
AtomList::Iterator prevIndex = index;
prevIndex--;
MP4::Atom *prev = *prevIndex;
if(prev->name == "free") {
offset = prev->offset;
length += prev->length;
}
}
if(index != meta->children.end()) {
AtomList::Iterator nextIndex = index;
nextIndex++;
MP4::Atom *next = *nextIndex;
if(next->name == "free") {
length += next->length;
}
}
long delta = data.size() - length;
if(delta > 0 || (delta < 0 && delta > -8)) {
data.append(padIlst(data));
delta = data.size() - length;
}
else if(delta < 0) {
data.append(padIlst(data, -delta - 8));
delta = 0;
}
d->file->insert(data, offset, length);
if(delta) {
updateParents(path, delta, 1);
updateOffsets(delta, offset);
}
}
String
MP4::Tag::title() const
{
if(d->items.contains("\251nam"))
return d->items["\251nam"].toStringList().toString(", ");
return String::null;
}
String
MP4::Tag::artist() const
{
if(d->items.contains("\251ART"))
return d->items["\251ART"].toStringList().toString(", ");
return String::null;
}
String
MP4::Tag::album() const
{
if(d->items.contains("\251alb"))
return d->items["\251alb"].toStringList().toString(", ");
return String::null;
}
String
MP4::Tag::comment() const
{
if(d->items.contains("\251cmt"))
return d->items["\251cmt"].toStringList().toString(", ");
return String::null;
}
String
MP4::Tag::genre() const
{
if(d->items.contains("\251gen"))
return d->items["\251gen"].toStringList().toString(", ");
return String::null;
}
unsigned int
MP4::Tag::year() const
{
if(d->items.contains("\251day"))
return d->items["\251day"].toStringList().toString().toInt();
return 0;
}
unsigned int
MP4::Tag::track() const
{
if(d->items.contains("trkn"))
return d->items["trkn"].toIntPair().first;
return 0;
}
void
MP4::Tag::setTitle(const String &value)
{
d->items["\251nam"] = StringList(value);
}
void
MP4::Tag::setArtist(const String &value)
{
d->items["\251ART"] = StringList(value);
}
void
MP4::Tag::setAlbum(const String &value)
{
d->items["\251alb"] = StringList(value);
}
void
MP4::Tag::setComment(const String &value)
{
d->items["\251cmt"] = StringList(value);
}
void
MP4::Tag::setGenre(const String &value)
{
d->items["\251gen"] = StringList(value);
}
void
MP4::Tag::setYear(uint value)
{
d->items["\251day"] = StringList(String::number(value));
}
void
MP4::Tag::setTrack(uint value)
{
d->items["trkn"] = MP4::Item(value, 0);
}
MP4::ItemListMap &
MP4::Tag::itemListMap()
{
return d->items;
}
#endif

100
taglib/mp4/mp4tag.h Normal file
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@ -0,0 +1,100 @@
/**************************************************************************
copyright : (C) 2007 by Lukáš Lalinský
email : lalinsky@gmail.com
**************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifndef TAGLIB_MP4TAG_H
#define TAGLIB_MP4TAG_H
#include <tag.h>
#include <tbytevectorlist.h>
#include <tfile.h>
#include <tmap.h>
#include <tstringlist.h>
#include "taglib_export.h"
#include "mp4atom.h"
#include "mp4item.h"
namespace TagLib {
namespace MP4 {
typedef TagLib::Map<String, Item> ItemListMap;
class TAGLIB_EXPORT Tag: public TagLib::Tag
{
public:
Tag(TagLib::File *file, Atoms *atoms);
bool save();
String title() const;
String artist() const;
String album() const;
String comment() const;
String genre() const;
uint year() const;
uint track() const;
void setTitle(const String &value);
void setArtist(const String &value);
void setAlbum(const String &value);
void setComment(const String &value);
void setGenre(const String &value);
void setYear(uint value);
void setTrack(uint value);
ItemListMap &itemListMap();
private:
TagLib::ByteVectorList parseData(Atom *atom, TagLib::File *file, int expectedFlags = -1, bool freeForm = false);
void parseText(Atom *atom, TagLib::File *file, int expectedFlags = 1);
void parseFreeForm(Atom *atom, TagLib::File *file);
void parseInt(Atom *atom, TagLib::File *file);
void parseIntPair(Atom *atom, TagLib::File *file);
void parseBool(Atom *atom, TagLib::File *file);
TagLib::ByteVector padIlst(const ByteVector &data, int length = -1);
TagLib::ByteVector renderAtom(const ByteVector &name, const TagLib::ByteVector &data);
TagLib::ByteVector renderData(const ByteVector &name, int flags, const TagLib::ByteVectorList &data);
TagLib::ByteVector renderText(const ByteVector &name, Item &item, int flags = 1);
TagLib::ByteVector renderFreeForm(const String &name, Item &item);
TagLib::ByteVector renderBool(const ByteVector &name, Item &item);
TagLib::ByteVector renderInt(const ByteVector &name, Item &item);
TagLib::ByteVector renderIntPair(const ByteVector &name, Item &item);
TagLib::ByteVector renderIntPairNoTrailing(const ByteVector &name, Item &item);
void updateParents(AtomList &path, long delta, int ignore = 0);
void updateOffsets(long delta, long offset);
void saveNew(TagLib::ByteVector &data);
void saveExisting(TagLib::ByteVector &data, AtomList &path);
class TagPrivate;
TagPrivate *d;
};
}
}
#endif