void MainWindow::on_pushOpenFolder_clicked()
{
m_notUsed.clear();
QString dir = QFileDialog::getExistingDirectory(this, tr("Open MP3 Source Directory"),
pSet->value("src_dir").toString(), QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);
if (!dir.isEmpty())
{
pSet->setValue("src_dir", dir);
ui->lineSrcFolder->setText(dir);
cleanTags();
QDir mp3Dir(dir, "*.mp3");
QStringList files = mp3Dir.entryList();
TagLib::MPEG::File* ptlFile;
foreach (QString file, files)
{
QString path = QString("%1/%2").arg(mp3Dir.absolutePath()).arg(file);
ptlFile = new TagLib::MPEG::File(reinterpret_cast<const wchar_t *>(path.utf16()));
if (ptlFile && ptlFile->isOpen())
{
tagFiles.append(ptlFile);
}
else if(ptlFile)
{
m_notUsed.append(path);
delete ptlFile;
}
}
/*!
* \brief Read the albumart image from the file
*
* \param filename The filename for which we want to find the length.
* \param type The type of image we want - front/back etc
* \returns A pointer to a QImage owned by the caller or NULL if not found.
*/
QImage* MetaIOID3::getAlbumArt(QString filename, ImageType type)
{
QImage *picture = new QImage();
AttachedPictureFrame::Type apicType
= AttachedPictureFrame::FrontCover;
switch (type)
{
case IT_UNKNOWN :
apicType = AttachedPictureFrame::Other;
break;
case IT_FRONTCOVER :
apicType = AttachedPictureFrame::FrontCover;
break;
case IT_BACKCOVER :
apicType = AttachedPictureFrame::BackCover;
break;
case IT_CD :
apicType = AttachedPictureFrame::Media;
break;
case IT_INLAY :
apicType = AttachedPictureFrame::LeafletPage;
break;
default:
return picture;
}
QByteArray fname = filename.toLocal8Bit();
TagLib::MPEG::File *mpegfile = new TagLib::MPEG::File(fname.constData());
if (mpegfile)
{
if (mpegfile->isOpen()
&& !mpegfile->ID3v2Tag()->frameListMap()["APIC"].isEmpty())
{
TagLib::ID3v2::FrameList apicframes =
mpegfile->ID3v2Tag()->frameListMap()["APIC"];
for(TagLib::ID3v2::FrameList::Iterator it = apicframes.begin();
it != apicframes.end(); ++it)
{
AttachedPictureFrame *frame =
static_cast<AttachedPictureFrame *>(*it);
if (frame && frame->type() == apicType)
{
picture->loadFromData((const uchar *)frame->picture().data(),
frame->picture().size());
return picture;
}
}
}
delete mpegfile;
}
delete picture;
return NULL;
}
/*!
* \brief Open the file to read the tag
*
* \param filename The filename
* \returns A taglib file object for this format
*/
TagLib::MPEG::File *MetaIOID3::OpenFile(const QString &filename)
{
QByteArray fname = filename.toLocal8Bit();
TagLib::MPEG::File *mpegfile = new TagLib::MPEG::File(fname.constData());
if (!mpegfile->isOpen())
{
delete mpegfile;
mpegfile = NULL;
}
return mpegfile;
}
void LocalSong::setInfo(const QString &filePath)
{
QFileInfo fileInfo(filePath);
fileExtension = fileInfo.completeSuffix();
QString singer="";
QString sname="";
QString album="";
QImage covpic;
if(fileExtension == "m4a")
{
TagLib::MP4::File *mp4File = new TagLib::MP4::File(
QFile::encodeName(filePath).constData());
if(false==mp4File->isOpen())
return;
sname=QString(mp4File->tag()->title().toCString(true));
singer=QString(mp4File->tag()->artist().toCString(true));
album=QString(mp4File->tag()->album().toCString(true));
TagLib::MP4::ItemListMap itemListMap = mp4File->tag()->itemListMap();
TagLib::MP4::Item albumArtItem = itemListMap["covr"];
TagLib::MP4::CoverArtList albumArtList = albumArtItem.toCoverArtList();
TagLib::MP4::CoverArt albumArt = albumArtList.front();
QImage cover;
cover.loadFromData((const uchar *)
albumArt.data().data(),
albumArt.data().size());
covpic = cover.scaled(
50,
50,
Qt::IgnoreAspectRatio,
Qt::SmoothTransformation);
if(!covpic.isNull())
{
qDebug()<<"读取M4A封面信息成功";
}else
{
covpic.load(":/image/image/playIcon.png");
qDebug()<<"读取音乐封面信息失败";
}
}
else if(fileExtension == "mp3")
{
TagLib::MPEG::File *mpegFile = new TagLib::MPEG::File(
QFile::encodeName(filePath).constData());
if(false==mpegFile->isOpen())
return;
else
{
sname=QString(mpegFile->tag()->title().toCString(true));
singer=QString(mpegFile->tag()->artist().toCString(true));
album=QString(mpegFile->tag()->album().toCString(true));
auto tag = mpegFile->ID3v2Tag(false);
auto list = tag->frameListMap()["APIC"];
if(!list.isEmpty()) {
auto frame = list.front();
auto pic = reinterpret_cast<TagLib::ID3v2::AttachedPictureFrame *>(frame);
if(pic && !pic->picture().isNull())
{
QImage cover;
if(cover.loadFromData(QByteArray::fromRawData(pic->picture().data(), pic->picture().size()))) {
covpic = cover.scaled(
50,
50,
Qt::IgnoreAspectRatio,
Qt::SmoothTransformation);
qDebug()<<"读取MP3封面信息成功";
}
}
}
else
{
covpic.load(":/image/image/playIcon.png");
qDebug()<<"读取音乐封面信息失败";
}
}
}
singerlist.append(singer);
snamelist.append(sname);
albumlist.append(album);
covPiclist.append(covpic);
int covCount=covPiclist.length();
QString covpicpath=QDir::tempPath()+QString("/%1.png").arg(covCount);
covpic.save(covpicpath);
QUrl covpicUrl=QUrl::fromLocalFile(covpicpath);
qDebug()<<"歌名为"<<sname;
qDebug()<<"歌手为"<<singer;
qDebug()<<"专辑为"<<album;
qDebug()<<"URL为"<<covpicUrl;
emit setSongInfo(singer,sname,album,covpicUrl);
return;
}