255 lines
8.4 KiB
C++
255 lines
8.4 KiB
C++
/*
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* Copyright (C) 2013 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS 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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*
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* LMS 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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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "ArtworkService.hpp"
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#include <algorithm>
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#include <functional>
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#include "av/IAudioFile.hpp"
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#include "av/Types.hpp"
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#include "core/IConfig.hpp"
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#include "core/ILogger.hpp"
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#include "core/String.hpp"
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#include "core/Utils.hpp"
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#include "database/Db.hpp"
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#include "database/Image.hpp"
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#include "database/Session.hpp"
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#include "database/Track.hpp"
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#include "image/Exception.hpp"
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#include "image/IEncodedImage.hpp"
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#include "image/Image.hpp"
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namespace lms::cover
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{
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namespace
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{
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bool isFileSupported(const std::filesystem::path& file, const std::vector<std::filesystem::path>& extensions)
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{
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return (std::find(std::cbegin(extensions), std::cend(extensions), file.extension()) != std::cend(extensions));
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}
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} // namespace
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std::unique_ptr<IArtworkService> createArtworkService(db::Db& db, const std::filesystem::path& defaultReleaseCoverSvgPath, const std::filesystem::path& defaultArtistImageSvgPath)
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{
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return std::make_unique<ArtworkService>(db, defaultReleaseCoverSvgPath, defaultArtistImageSvgPath);
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}
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ArtworkService::ArtworkService(db::Db& db,
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const std::filesystem::path& defaultReleaseCoverSvgPath,
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const std::filesystem::path& defaultArtistImageSvgPath)
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: _db{ db }
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, _cache{ core::Service<core::IConfig>::get()->getULong("cover-max-cache-size", 30) * 1000 * 1000 }
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{
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setJpegQuality(core::Service<core::IConfig>::get()->getULong("cover-jpeg-quality", 75));
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LMS_LOG(COVER, INFO, "Default release cover path = " << defaultReleaseCoverSvgPath);
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LMS_LOG(COVER, INFO, "Max cache size = " << _cache.getMaxCacheSize());
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_defaultReleaseCover = image::readImage(defaultReleaseCoverSvgPath); // may throw
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_defaultArtistImage = image::readImage(defaultArtistImageSvgPath); // may throw
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}
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std::unique_ptr<image::IEncodedImage> ArtworkService::getFromAvMediaFile(const av::IAudioFile& input, std::optional<image::ImageSize> width) const
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{
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struct CandidatePicture
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{
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av::Picture picture;
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bool isFront{};
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std::size_t index;
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// > means is better candidate
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bool operator>(const CandidatePicture& other) const
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{
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if (!isFront && other.isFront)
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return false;
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if (isFront && !other.isFront)
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return true;
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return index < other.index;
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}
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};
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auto metadataHasFrontKeyword{ [](const av::IAudioFile::MetadataMap& metadata) {
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return std::any_of(std::cbegin(metadata), std::cend(metadata), [](const auto& keyValue) { return core::stringUtils::stringCaseInsensitiveContains(keyValue.second, "front"); });
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} };
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std::vector<CandidatePicture> candidatePictures;
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std::size_t pictureIndex{};
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input.visitAttachedPictures([&](const av::Picture& picture, const av::IAudioFile::MetadataMap& metadata) {
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candidatePictures.emplace_back(CandidatePicture{ picture, metadataHasFrontKeyword(metadata), pictureIndex++ });
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});
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std::stable_sort(std::begin(candidatePictures), std::end(candidatePictures), std::greater<>());
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std::unique_ptr<image::IEncodedImage> image;
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for (const CandidatePicture& candidatePicture : candidatePictures)
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{
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try
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{
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if (!width)
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{
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image = image::readImage(candidatePicture.picture.data, candidatePicture.picture.mimeType);
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}
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else
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{
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auto rawImage{ image::decodeImage(candidatePicture.picture.data) };
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rawImage->resize(*width);
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image = image::encodeToJPEG(*rawImage, _jpegQuality);
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}
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}
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catch (const image::Exception& e)
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{
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LMS_LOG(COVER, ERROR, "Cannot read embedded cover: " << e.what());
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}
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}
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return image;
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}
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std::unique_ptr<image::IEncodedImage> ArtworkService::getFromImageFile(const std::filesystem::path& p, std::optional<image::ImageSize> width) const
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{
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std::unique_ptr<image::IEncodedImage> image;
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try
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{
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if (!width)
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{
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image = image::readImage(p);
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}
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else
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{
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auto rawImage{ image::decodeImage(p) };
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rawImage->resize(*width);
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image = image::encodeToJPEG(*rawImage, _jpegQuality);
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}
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}
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catch (const image::Exception& e)
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{
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LMS_LOG(COVER, ERROR, "Cannot read cover in file " << p << ": " << e.what());
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}
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return image;
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}
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std::shared_ptr<image::IEncodedImage> ArtworkService::getDefaultReleaseCover()
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{
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return _defaultReleaseCover;
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}
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std::shared_ptr<image::IEncodedImage> ArtworkService::getDefaultArtistImage()
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{
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return _defaultArtistImage;
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}
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bool ArtworkService::checkImageFile(const std::filesystem::path& filePath)
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{
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std::error_code ec;
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if (!isFileSupported(filePath, _fileExtensions))
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return false;
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if (!std::filesystem::exists(filePath, ec))
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return false;
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if (!std::filesystem::is_regular_file(filePath, ec))
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return false;
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return true;
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}
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std::unique_ptr<image::IEncodedImage> ArtworkService::getTrackImage(const std::filesystem::path& p, std::optional<image::ImageSize> width) const
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{
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std::unique_ptr<image::IEncodedImage> image;
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try
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{
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image = getFromAvMediaFile(*av::parseAudioFile(p), width);
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}
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catch (av::Exception& e)
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{
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LMS_LOG(COVER, ERROR, "Cannot get covers from track " << p << ": " << e.what());
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}
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return image;
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}
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std::shared_ptr<image::IEncodedImage> ArtworkService::getImage(db::ImageId imageId, std::optional<image::ImageSize> width)
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{
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const ImageCache::EntryDesc cacheEntryDesc{ imageId, width };
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std::shared_ptr<image::IEncodedImage> cover{ _cache.getImage(cacheEntryDesc) };
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if (cover)
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return cover;
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std::filesystem::path imageFile;
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{
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db::Session& session{ _db.getTLSSession() };
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auto transaction{ session.createReadTransaction() };
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const db::Image::pointer image{ db::Image::find(session, imageId) };
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if (image)
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imageFile = image->getAbsoluteFilePath();
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}
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cover = getFromImageFile(imageFile, width);
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if (cover)
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_cache.addImage(cacheEntryDesc, cover);
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return cover;
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}
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std::shared_ptr<image::IEncodedImage> ArtworkService::getTrackImage(db::TrackId trackId, std::optional<image::ImageSize> width)
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{
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const ImageCache::EntryDesc cacheEntryDesc{ trackId, width };
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std::shared_ptr<image::IEncodedImage> cover{ _cache.getImage(cacheEntryDesc) };
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if (cover)
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return cover;
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std::filesystem::path trackFile;
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{
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db::Session& session{ _db.getTLSSession() };
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auto transaction{ session.createReadTransaction() };
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const db::Track::pointer track{ db::Track::find(session, trackId) };
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if (track && track->hasCover())
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trackFile = track->getAbsoluteFilePath();
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}
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cover = getTrackImage(trackFile, width);
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if (cover)
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_cache.addImage(cacheEntryDesc, cover);
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return cover;
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}
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void ArtworkService::flushCache()
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{
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_cache.flush();
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}
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void ArtworkService::setJpegQuality(unsigned quality)
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{
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_jpegQuality = core::utils::clamp<unsigned>(quality, 1, 100);
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LMS_LOG(COVER, INFO, "JPEG export quality = " << _jpegQuality);
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}
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} // namespace lms::cover
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