148 lines
4.9 KiB
C++
148 lines
4.9 KiB
C++
/* This file is part of Strawberry.
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Copyright 2018-2023, Jonas Kvinge <jonas@jkvinge.net>
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Strawberry is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Strawberry is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <string>
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#include <QByteArray>
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#include <QString>
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#include <QIODevice>
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#include <QFile>
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#include <QBuffer>
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#include <QImage>
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#include <QMimeDatabase>
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#include "core/logging.h"
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#include "tagreaderbase.h"
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TagReaderBase::TagReaderBase() = default;
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TagReaderBase::~TagReaderBase() = default;
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float TagReaderBase::ConvertPOPMRating(const int POPM_rating) {
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if (POPM_rating < 0x01) return 0.0F;
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else if (POPM_rating < 0x40) return 0.20F;
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else if (POPM_rating < 0x80) return 0.40F;
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else if (POPM_rating < 0xC0) return 0.60F;
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else if (POPM_rating < 0xFC) return 0.80F;
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return 1.0F;
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}
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int TagReaderBase::ConvertToPOPMRating(const float rating) {
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if (rating < 0.20) return 0x00;
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else if (rating < 0.40) return 0x01;
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else if (rating < 0.60) return 0x40;
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else if (rating < 0.80) return 0x80;
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else if (rating < 1.0) return 0xC0;
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return 0xFF;
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}
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TagReaderBase::Cover TagReaderBase::LoadCoverFromRequest(const spb::tagreader::SaveFileRequest &request) {
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if (!request.has_save_cover() || !request.save_cover()) {
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return Cover();
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}
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const QString song_filename = QString::fromUtf8(request.filename().data(), static_cast<qint64>(request.filename().size()));
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QString cover_filename;
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if (request.has_cover_filename()) {
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cover_filename = QString::fromUtf8(request.cover_filename().data(), static_cast<qint64>(request.cover_filename().size()));
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}
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QByteArray cover_data;
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if (request.has_cover_data()) {
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cover_data = QByteArray(request.cover_data().data(), static_cast<qint64>(request.cover_data().size()));
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}
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QString cover_mime_type;
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if (request.has_cover_mime_type()) {
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cover_mime_type = QString::fromStdString(request.cover_mime_type());
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}
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return LoadCoverFromRequest(song_filename, cover_filename, cover_data, cover_mime_type);
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}
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TagReaderBase::Cover TagReaderBase::LoadCoverFromRequest(const spb::tagreader::SaveEmbeddedArtRequest &request) {
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const QString song_filename = QString::fromUtf8(request.filename().data(), static_cast<qint64>(request.filename().size()));
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QString cover_filename;
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if (request.has_cover_filename()) {
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cover_filename = QString::fromUtf8(request.cover_filename().data(), static_cast<qint64>(request.cover_filename().size()));
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}
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QByteArray cover_data;
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if (request.has_cover_data()) {
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cover_data = QByteArray(request.cover_data().data(), static_cast<qint64>(request.cover_data().size()));
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}
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QString cover_mime_type;
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if (request.has_cover_mime_type()) {
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cover_mime_type = QString::fromStdString(request.cover_mime_type());
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}
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return LoadCoverFromRequest(song_filename, cover_filename, cover_data, cover_mime_type);
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}
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TagReaderBase::Cover TagReaderBase::LoadCoverFromRequest(const QString &song_filename, const QString &cover_filename, QByteArray cover_data, QString cover_mime_type) {
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if (cover_data.isEmpty() && !cover_filename.isEmpty()) {
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qLog(Debug) << "Loading cover from" << cover_filename << "for" << song_filename;
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QFile file(cover_filename);
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if (!file.open(QIODevice::ReadOnly)) {
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qLog(Error) << "Failed to open file" << cover_filename << "for reading:" << file.errorString();
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return Cover();
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}
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cover_data = file.readAll();
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file.close();
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}
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if (!cover_data.isEmpty()) {
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if (cover_mime_type.isEmpty()) {
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cover_mime_type = QMimeDatabase().mimeTypeForData(cover_data).name();
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}
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if (cover_mime_type == QStringLiteral("image/jpeg")) {
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qLog(Debug) << "Using cover from JPEG data for" << song_filename;
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return Cover(cover_data, cover_mime_type);
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}
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if (cover_mime_type == QStringLiteral("image/png")) {
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qLog(Debug) << "Using cover from PNG data for" << song_filename;
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return Cover(cover_data, cover_mime_type);
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}
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// Convert image to JPEG.
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qLog(Debug) << "Converting cover to JPEG data for" << song_filename;
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QImage cover_image;
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if (!cover_image.loadFromData(cover_data)) {
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qLog(Error) << "Failed to load image from cover data for" << song_filename;
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return Cover();
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}
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cover_data.clear();
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QBuffer buffer(&cover_data);
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if (buffer.open(QIODevice::WriteOnly)) {
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cover_image.save(&buffer, "JPEG");
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buffer.close();
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}
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return Cover(cover_data, QStringLiteral("image/jpeg"));
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}
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return Cover();
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}
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