Another attempt: regroup lms services
This commit is contained in:
emeric
@@ -0,0 +1 @@
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add_subdirectory(cover)
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@@ -0,0 +1,28 @@
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add_library(lmsservice-cover SHARED
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impl/CoverService.cpp
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)
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target_include_directories(lmsservice-cover INTERFACE
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include
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)
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target_include_directories(lmsservice-cover PRIVATE
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include
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impl
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)
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target_link_libraries(lmsservice-cover PRIVATE
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lmsav
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lmsimage
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)
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target_link_libraries(lmsservice-cover PUBLIC
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lmsdatabase
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lmsimage
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lmsutils
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std::filesystem
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)
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install(TARGETS lmsservice-cover DESTINATION lib)
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@@ -0,0 +1,459 @@
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/*
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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 "CoverService.hpp"
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#include "av/IAudioFile.hpp"
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#include "database/Db.hpp"
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#include "database/Release.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/IRawImage.hpp"
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#include "utils/IConfig.hpp"
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#include "utils/Logger.hpp"
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#include "utils/Random.hpp"
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#include "utils/Utils.hpp"
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namespace
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{
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struct TrackInfo
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{
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bool hasCover {};
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bool isMultiDisc {};
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std::filesystem::path trackPath;
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std::optional<Database::ReleaseId> releaseId;
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};
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std::optional<TrackInfo>
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getTrackInfo(Database::Session& dbSession, Database::TrackId trackId)
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{
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std::optional<TrackInfo> res;
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auto transaction {dbSession.createSharedTransaction()};
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const Database::Track::pointer track {Database::Track::getById(dbSession, trackId)};
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if (!track)
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return res;
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res = TrackInfo {};
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res->hasCover = track->hasCover();
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res->trackPath = track->getPath();
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if (const Database::Release::pointer& release {track->getRelease()})
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{
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res->releaseId = release->getId();
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if (release->getTotalDisc() > 1)
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res->isMultiDisc = true;
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}
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return res;
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}
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}
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namespace Cover {
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using namespace Image;
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static
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bool
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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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std::unique_ptr<ICoverService>
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createCoverService(Database::Db& db, const std::filesystem::path& execPath, const std::filesystem::path& defaultCoverPath)
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{
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return std::make_unique<CoverService>(db, execPath, defaultCoverPath);
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}
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CoverService::CoverService(Database::Db& db,
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const std::filesystem::path& execPath,
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const std::filesystem::path& defaultCoverPath)
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: _db {db}
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, _defaultCoverPath {defaultCoverPath}
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, _maxCacheSize {Service<IConfig>::get()->getULong("cover-max-cache-size", 30) * 1000 * 1000}
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, _maxFileSize {Service<IConfig>::get()->getULong("cover-max-file-size", 10) * 1000 * 1000}
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{
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setJpegQuality(Service<IConfig>::get()->getULong("cover-jpeg-quality", 75));
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LMS_LOG(COVER, INFO) << "Default cover path = '" << _defaultCoverPath.string() << "'";
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LMS_LOG(COVER, INFO) << "Max cache size = " << _maxCacheSize;
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LMS_LOG(COVER, INFO) << "Max file size = " << _maxFileSize;
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#if LMS_SUPPORT_IMAGE_GM
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GraphicsMagick::init(execPath);
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#else
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(void)execPath;
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#endif
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try
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{
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getDefault(512);
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}
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catch (const Image::ImageException& e)
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{
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throw LmsException("Cannot read default cover file '" + _defaultCoverPath.string() + "': " + e.what());
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}
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}
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std::unique_ptr<IEncodedImage>
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CoverService::getFromAvMediaFile(const Av::IAudioFile& input, ImageSize width) const
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{
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std::unique_ptr<IEncodedImage> image;
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input.visitAttachedPictures([&](const Av::Picture& picture)
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{
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if (image)
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return;
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try
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{
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std::unique_ptr<IRawImage> rawImage {decodeImage(picture.data, picture.dataSize)};
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rawImage->resize(width);
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image = rawImage->encodeToJPEG(_jpegQuality);
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}
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catch (const Image::ImageException& 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<IEncodedImage>
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CoverService::getFromCoverFile(const std::filesystem::path& p, ImageSize width) const
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{
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std::unique_ptr<IEncodedImage> image;
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try
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{
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std::unique_ptr<IRawImage> rawImage {decodeImage(p)};
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rawImage->resize(width);
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image = rawImage->encodeToJPEG(_jpegQuality);
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}
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catch (const ImageException& e)
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{
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LMS_LOG(COVER, ERROR) << "Cannot read cover in file '" << p.string() << "': " << e.what();
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}
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return image;
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}
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std::shared_ptr<IEncodedImage>
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CoverService::getDefault(ImageSize width)
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{
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{
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std::shared_lock lock {_cacheMutex};
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if (auto it {_defaultCoverCache.find(width)}; it != std::cend(_defaultCoverCache))
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return it->second;
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}
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{
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std::unique_lock lock {_cacheMutex};
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if (auto it {_defaultCoverCache.find(width)}; it != std::cend(_defaultCoverCache))
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return it->second;
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std::shared_ptr<IEncodedImage> image {getFromCoverFile(_defaultCoverPath, width)};
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_defaultCoverCache[width] = image;
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LMS_LOG(COVER, DEBUG) << "Default cache entries = " << _defaultCoverCache.size();
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return image;
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}
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}
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std::unique_ptr<IEncodedImage>
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CoverService::getFromDirectory(const std::filesystem::path& directory, ImageSize width) const
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{
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const std::multimap<std::string, std::filesystem::path> coverPaths {getCoverPaths(directory)};
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auto tryLoadImageFromFilename = [&](std::string_view fileName)
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{
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std::unique_ptr<IEncodedImage> image;
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auto range {coverPaths.equal_range(std::string {fileName})};
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for (auto it {range.first}; it != range.second; ++it)
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{
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image = getFromCoverFile(it->second, width);
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if (image)
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break;
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}
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return image;
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};
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std::unique_ptr<IEncodedImage> image;
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for (std::string_view filename : _preferredFileNames)
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{
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image = tryLoadImageFromFilename(filename);
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if (image)
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return image;
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}
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// Just pick one
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for (const auto& [filename, coverPath] : coverPaths)
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{
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image = getFromCoverFile(coverPath, width);
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if (image)
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return image;
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}
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return image;
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}
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std::unique_ptr<IEncodedImage>
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CoverService::getFromSameNamedFile(const std::filesystem::path& filePath, ImageSize width) const
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{
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std::unique_ptr<IEncodedImage> res;
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std::filesystem::path coverPath {filePath};
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for (const std::filesystem::path& extension : _fileExtensions)
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{
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coverPath.replace_extension(extension);
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if (!checkCoverFile(coverPath))
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continue;
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res = getFromCoverFile(coverPath, width);
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if (res)
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break;
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}
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return res;
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}
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bool
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CoverService::checkCoverFile(const std::filesystem::path& filePath) const
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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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if (std::filesystem::file_size(filePath, ec) > _maxFileSize && !ec)
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{
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LMS_LOG(COVER, INFO) << "Cover file '" << filePath.string() << " is too big (" << std::filesystem::file_size(filePath, ec) << "), limit is " << _maxFileSize;
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return false;
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}
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return true;
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}
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std::multimap<std::string, std::filesystem::path>
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CoverService::getCoverPaths(const std::filesystem::path& directoryPath) const
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{
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std::multimap<std::string, std::filesystem::path> res;
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std::error_code ec;
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std::filesystem::directory_iterator itPath(directoryPath, ec);
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std::filesystem::directory_iterator itEnd;
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while (!ec && itPath != itEnd)
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{
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const std::filesystem::path& path {*itPath};
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if (checkCoverFile(path))
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res.emplace(std::filesystem::path{ path }.filename().replace_extension("").string(), path);
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itPath.increment(ec);
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}
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return res;
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}
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std::unique_ptr<IEncodedImage>
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CoverService::getFromTrack(const std::filesystem::path& p, ImageSize width) const
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{
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std::unique_ptr<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.string() << ": " << e.what();
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}
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return image;
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}
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std::shared_ptr<IEncodedImage>
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CoverService::getFromTrack(Database::TrackId trackId, ImageSize width)
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{
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return getFromTrack(_db.getTLSSession(), trackId, width, true /* allow release fallback*/);
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}
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std::shared_ptr<IEncodedImage>
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CoverService::getFromTrack(Database::Session& dbSession, Database::TrackId trackId, ImageSize width, bool allowReleaseFallback)
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{
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using namespace Database;
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const CacheEntryDesc cacheEntryDesc {trackId, width};
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std::shared_ptr<IEncodedImage> cover {loadFromCache(cacheEntryDesc)};
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if (cover)
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return cover;
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if (const std::optional<TrackInfo> trackInfo {getTrackInfo(dbSession, trackId)})
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{
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if (trackInfo->hasCover)
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cover = getFromTrack(trackInfo->trackPath, width);
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if (!cover)
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cover = getFromSameNamedFile(trackInfo->trackPath, width);
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if (!cover && trackInfo->releaseId && allowReleaseFallback)
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cover = getFromRelease(*trackInfo->releaseId, width);
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if (!cover && trackInfo->isMultiDisc)
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{
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if (trackInfo->trackPath.parent_path().has_parent_path())
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cover = getFromDirectory(trackInfo->trackPath.parent_path().parent_path(), width);
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}
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}
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if (!cover)
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cover = getDefault(width);
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if (cover)
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saveToCache(cacheEntryDesc, cover);
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return cover;
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}
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std::shared_ptr<IEncodedImage>
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CoverService::getFromRelease(Database::ReleaseId releaseId, ImageSize width)
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{
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const CacheEntryDesc cacheEntryDesc {releaseId, width};
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std::shared_ptr<IEncodedImage> cover {loadFromCache(cacheEntryDesc)};
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if (cover)
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return cover;
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struct ReleaseInfo
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{
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Database::TrackId firstTrackId;
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std::filesystem::path releaseDirectory;
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};
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Database::Session& session {_db.getTLSSession()};
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auto getReleaseInfo {[&]
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{
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std::optional<ReleaseInfo> res;
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auto transaction {session.createSharedTransaction()};
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if (const Database::Release::pointer release {Database::Release::getById(session, releaseId)})
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{
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if (const auto firstTrack {release->getFirstTrack()})
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{
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res = ReleaseInfo {};
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res->firstTrackId = firstTrack->getId();
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res->releaseDirectory = firstTrack->getPath().parent_path();
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}
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}
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return res;
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}};
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if (const std::optional<ReleaseInfo> releaseInfo {getReleaseInfo()})
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{
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cover = getFromDirectory(releaseInfo->releaseDirectory, width);
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if (!cover)
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cover = getFromTrack(session, releaseInfo->firstTrackId, width, false /* no release fallback */);
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}
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if (!cover)
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cover = getDefault(width);
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if (cover)
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saveToCache(cacheEntryDesc, cover);
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return cover;
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}
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void
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CoverService::flushCache()
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{
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std::unique_lock lock {_cacheMutex};
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LMS_LOG(COVER, DEBUG) << "Cache stats: hits = " << _cacheHits << ", misses = " << _cacheMisses << ", nb entries = " << _cache.size() << ", size = " << _cacheSize;
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_cacheHits = 0;
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_cacheMisses = 0;
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_cacheSize = 0;
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_cache.clear();
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}
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void
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CoverService::setJpegQuality(unsigned quality)
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{
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_jpegQuality = 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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void
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CoverService::saveToCache(const CacheEntryDesc& entryDesc, std::shared_ptr<IEncodedImage> image)
|
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{
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std::unique_lock lock {_cacheMutex};
|
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while (_cacheSize + image->getDataSize() > _maxCacheSize && !_cache.empty())
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{
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auto itRandom {Random::pickRandom(_cache)};
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_cacheSize -= itRandom->second->getDataSize();
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_cache.erase(itRandom);
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}
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_cacheSize += image->getDataSize();
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_cache[entryDesc] = image;
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}
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std::shared_ptr<IEncodedImage>
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CoverService::loadFromCache(const CacheEntryDesc& entryDesc)
|
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{
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std::shared_lock lock {_cacheMutex};
|
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auto it {_cache.find(entryDesc)};
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if (it == std::cend(_cache))
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{
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++_cacheMisses;
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return nullptr;
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}
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++_cacheHits;
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return it->second;
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}
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} // namespace Cover
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|
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@@ -0,0 +1,137 @@
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||||
/*
|
||||
* Copyright (C) 2015 Emeric Poupon
|
||||
*
|
||||
* This file is part of LMS.
|
||||
*
|
||||
* LMS is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* LMS 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with LMS. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <atomic>
|
||||
#include <filesystem>
|
||||
#include <map>
|
||||
#include <optional>
|
||||
#include <shared_mutex>
|
||||
#include <string_view>
|
||||
#include <unordered_map>
|
||||
#include <variant>
|
||||
#include <vector>
|
||||
|
||||
#include "services/cover/ICoverService.hpp"
|
||||
#include "image/IEncodedImage.hpp"
|
||||
#include "database/Types.hpp"
|
||||
|
||||
namespace Database
|
||||
{
|
||||
class Session;
|
||||
}
|
||||
|
||||
namespace Av
|
||||
{
|
||||
class IAudioFile;
|
||||
}
|
||||
|
||||
namespace Cover
|
||||
{
|
||||
struct CacheEntryDesc
|
||||
{
|
||||
std::variant<Database::TrackId, Database::ReleaseId> id;
|
||||
std::size_t size;
|
||||
|
||||
bool operator==(const CacheEntryDesc& other) const
|
||||
{
|
||||
return id == other.id
|
||||
&& size == other.size;
|
||||
}
|
||||
};
|
||||
|
||||
} // ns Cover
|
||||
|
||||
namespace std
|
||||
{
|
||||
|
||||
template<>
|
||||
class hash<Cover::CacheEntryDesc>
|
||||
{
|
||||
public:
|
||||
size_t operator()(const Cover::CacheEntryDesc& e) const
|
||||
{
|
||||
size_t h {};
|
||||
std::visit([&](auto id)
|
||||
{
|
||||
using IdType = std::decay_t<decltype(id)>;
|
||||
h ^= std::hash<IdType>()(id);
|
||||
}, e.id);
|
||||
h ^= std::hash<std::size_t>()(e.size) << 1;
|
||||
return h;
|
||||
}
|
||||
};
|
||||
|
||||
} // ns std
|
||||
|
||||
namespace Cover
|
||||
{
|
||||
class CoverService : public ICoverService
|
||||
{
|
||||
public:
|
||||
CoverService(Database::Db& db,
|
||||
const std::filesystem::path& execPath,
|
||||
const std::filesystem::path& defaultCoverPath);
|
||||
|
||||
CoverService(const CoverService&) = delete;
|
||||
CoverService& operator=(const CoverService&) = delete;
|
||||
CoverService(CoverService&&) = delete;
|
||||
CoverService& operator=(CoverService&&) = delete;
|
||||
|
||||
private:
|
||||
std::shared_ptr<Image::IEncodedImage> getFromTrack(Database::TrackId trackId, Image::ImageSize width) override;
|
||||
std::shared_ptr<Image::IEncodedImage> getFromRelease(Database::ReleaseId releaseId, Image::ImageSize width) override;
|
||||
void flushCache() override;
|
||||
void setJpegQuality(unsigned quality) override;
|
||||
|
||||
std::shared_ptr<Image::IEncodedImage> getFromTrack(Database::Session& dbSession, Database::TrackId trackId, Image::ImageSize width, bool allowReleaseFallback);
|
||||
std::unique_ptr<Image::IEncodedImage> getFromAvMediaFile(const Av::IAudioFile& input, Image::ImageSize width) const;
|
||||
std::unique_ptr<Image::IEncodedImage> getFromCoverFile(const std::filesystem::path& p, Image::ImageSize width) const;
|
||||
|
||||
std::unique_ptr<Image::IEncodedImage> getFromTrack(const std::filesystem::path& path, Image::ImageSize width) const;
|
||||
std::multimap<std::string, std::filesystem::path> getCoverPaths(const std::filesystem::path& directoryPath) const;
|
||||
std::unique_ptr<Image::IEncodedImage> getFromDirectory(const std::filesystem::path& directory, Image::ImageSize width) const;
|
||||
std::unique_ptr<Image::IEncodedImage> getFromSameNamedFile(const std::filesystem::path& filePath, Image::ImageSize width) const;
|
||||
std::shared_ptr<Image::IEncodedImage> getDefault(Image::ImageSize width);
|
||||
|
||||
bool checkCoverFile(const std::filesystem::path& directoryPath) const;
|
||||
|
||||
Database::Db& _db;
|
||||
|
||||
std::shared_mutex _cacheMutex;
|
||||
std::unordered_map<CacheEntryDesc, std::shared_ptr<Image::IEncodedImage>> _cache;
|
||||
std::unordered_map<Image::ImageSize, std::shared_ptr<Image::IEncodedImage>> _defaultCoverCache;
|
||||
std::atomic<std::size_t> _cacheMisses {};
|
||||
std::atomic<std::size_t> _cacheHits {};
|
||||
std::size_t _cacheSize {};
|
||||
|
||||
void saveToCache(const CacheEntryDesc& entryDesc, std::shared_ptr<Image::IEncodedImage> image);
|
||||
std::shared_ptr<Image::IEncodedImage> loadFromCache(const CacheEntryDesc& entryDesc);
|
||||
|
||||
const std::filesystem::path _defaultCoverPath;
|
||||
const std::size_t _maxCacheSize;
|
||||
static inline const std::vector<std::filesystem::path> _fileExtensions {".jpg", ".jpeg", ".png", ".bmp"}; // TODO parametrize
|
||||
const std::size_t _maxFileSize;
|
||||
static inline const std::vector<std::string> _preferredFileNames {"cover", "front"}; // TODO parametrize
|
||||
unsigned _jpegQuality;
|
||||
};
|
||||
|
||||
} // namespace Cover
|
||||
|
||||
@@ -0,0 +1,53 @@
|
||||
/*
|
||||
* Copyright (C) 2015 Emeric Poupon
|
||||
*
|
||||
* This file is part of LMS.
|
||||
*
|
||||
* LMS is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* LMS 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with LMS. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <filesystem>
|
||||
#include <memory>
|
||||
|
||||
#include "database/Types.hpp"
|
||||
#include "image/IEncodedImage.hpp"
|
||||
|
||||
namespace Database
|
||||
{
|
||||
class Db;
|
||||
}
|
||||
|
||||
namespace Cover
|
||||
{
|
||||
class ICoverService
|
||||
{
|
||||
public:
|
||||
virtual ~ICoverService() = default;
|
||||
|
||||
virtual std::shared_ptr<Image::IEncodedImage> getFromTrack(Database::TrackId trackId, Image::ImageSize width) = 0;
|
||||
virtual std::shared_ptr<Image::IEncodedImage> getFromRelease(Database::ReleaseId releaseId, Image::ImageSize width) = 0;
|
||||
|
||||
virtual void flushCache() = 0;
|
||||
|
||||
virtual void setJpegQuality(unsigned quality) = 0; // from 1 to 100
|
||||
};
|
||||
|
||||
std::unique_ptr<ICoverService> createCoverService(Database::Db& db,
|
||||
const std::filesystem::path& execPath,
|
||||
const std::filesystem::path& defaultCoverPath);
|
||||
|
||||
} // namespace CoverArt
|
||||
|
||||
Reference in New Issue
Block a user