--- /dev/null
+/**************************************************************************
+ 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 "id3v1genres.h"
+
+using namespace TagLib;
+
+class MP4::Tag::TagPrivate
+{
+public:
+ TagPrivate() : file(0), atoms(0) {}
+ ~TagPrivate() {}
+ TagLib::File *file;
+ Atoms *atoms;
+ ItemListMap items;
+};
+
+MP4::Tag::Tag(TagLib::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 if(atom->name == "gnre") {
+ parseGnre(atom, file);
+ }
+ else if(atom->name == "covr") {
+ parseCovr(atom, file);
+ }
+ else {
+ parseText(atom, file);
+ }
+ }
+}
+
+MP4::Tag::~Tag()
+{
+ delete d;
+}
+
+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::parseGnre(MP4::Atom *atom, TagLib::File *file)
+{
+ ByteVectorList data = parseData(atom, file);
+ if(data.size()) {
+ int idx = (int)data[0].toShort();
+ if(!d->items.contains("\251gen") && idx > 0) {
+ d->items.insert("\251gen", StringList(ID3v1::genre(idx - 1)));
+ }
+ }
+}
+
+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()) {
+ bool value = data[0].size() ? data[0][0] != '\0' : false;
+ d->items.insert(atom->name, value);
+ }
+}
+
+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);
+ }
+}
+
+void
+MP4::Tag::parseCovr(MP4::Atom *atom, TagLib::File *file)
+{
+ MP4::CoverArtList value;
+ ByteVector data = file->readBlock(atom->length - 8);
+ 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(name != "data") {
+ debug("MP4: Unexpected atom \"" + name + "\", expecting \"data\"");
+ break;
+ }
+ if(flags == MP4::CoverArt::PNG || flags == MP4::CoverArt::JPEG) {
+ value.append(MP4::CoverArt(MP4::CoverArt::Format(flags),
+ data.mid(pos + 16, length - 16)));
+ }
+ pos += length;
+ }
+ if(value.size() > 0)
+ d->items.insert(atom->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, 0x00, 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, 0x00, 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::renderCovr(const ByteVector &name, MP4::Item &item)
+{
+ ByteVector data;
+ MP4::CoverArtList value = item.toCoverArtList();
+ for(unsigned int i = 0; i < value.size(); i++) {
+ data.append(renderAtom("data", ByteVector::fromUInt(value[i].format()) +
+ ByteVector(4, '\0') + value[i].data()));
+ }
+ return renderAtom(name, 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 == "covr") {
+ data.append(renderCovr(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();
+ // 64-bit
+ if (size == 1) {
+ d->file->seek(4, File::Current); // Skip name
+ long long longSize = d->file->readBlock(8).toLongLong();
+ // Seek the offset of the 64-bit size
+ d->file->seek(path[i]->offset + 8);
+ d->file->writeBlock(ByteVector::fromLongLong(longSize + delta));
+ }
+ // 32-bit
+ else {
+ d->file->seek(path[i]->offset);
+ d->file->writeBlock(ByteVector::fromUInt(size + delta));
+ }
+ }
+}
+
+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);
+
+ // check if there is an atom before 'ilst', and possibly use it as padding
+ if(index != meta->children.begin()) {
+ AtomList::Iterator prevIndex = index;
+ prevIndex--;
+ MP4::Atom *prev = *prevIndex;
+ if(prev->name == "free") {
+ offset = prev->offset;
+ length += prev->length;
+ }
+ }
+ // check if there is an atom after 'ilst', and possibly use it as padding
+ AtomList::Iterator nextIndex = index;
+ nextIndex++;
+ if(nextIndex != meta->children.end()) {
+ 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
projects / someplayer / blobdiff