bool CoverUtils::coverFromMP4(QString filename, Album *album) {
TagLib::MP4::File f((TagLib::FileName)filename.toUtf8());
if (!f.isValid()) return false;
TagLib::MP4::Tag *tag = static_cast<TagLib::MP4::Tag *>(f.tag());
if (!tag) return false;
TagLib::MP4::ItemListMap itemsListMap = tag->itemListMap();
TagLib::MP4::Item coverItem = itemsListMap["covr"];
TagLib::MP4::CoverArtList coverArtList = coverItem.toCoverArtList();
TagLib::MP4::CoverArt coverArt = coverArtList.front();
QImage image;
image.loadFromData((const uchar *) coverArt.data().data(), coverArt.data().size());
if (!isAcceptableImage(image)) return false;
qDebug() << "Cover from MP4!";
return saveImage(image, album);
}
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;
}