Made STB the default image manipulation library to reduce memory usage (GraphicsMagick can still be selected). closes #93

src/tools/CMakeLists.txt

@@ -1,6 +1,4 @@
-
+add_subdirectory(cover)
 add_subdirectory(metadata)
 add_subdirectory(recommendation)
 add_subdirectory(zipper)
-
-

src/tools/cover/CMakeLists.txt

@@ -0,0 +1,10 @@
+
+add_executable(lms-cover
+	LmsCover.cpp
+	)
+
+target_link_libraries(lms-cover PRIVATE
+	lmscover
+	Boost::program_options
+	)
+

src/tools/cover/LmsCover.cpp

@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2020 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/>.
+ */
+
+#include <filesystem>
+#include <iostream>
+#include <stdexcept>
+#include <stdlib.h>
+
+#include <boost/program_options.hpp>
+
+#include "cover/ICoverArtGrabber.hpp"
+#include "database/Db.hpp"
+#include "database/Release.hpp"
+#include "database/Session.hpp"
+#include "database/Track.hpp"
+#include "utils/IConfig.hpp"
+#include "utils/Logger.hpp"
+#include "utils/Service.hpp"
+#include "utils/StreamLogger.hpp"
+
+static
+void
+dumpTrackCovers(Database::Session& session, CoverArt::ImageSize width)
+{
+	std::vector<Database::IdType> trackIds;
+	{
+		auto transaction {session.createSharedTransaction()};
+		trackIds = Database::Track::getAllIds(session);
+	}
+
+	for (Database::IdType trackId : trackIds)
+	{
+		std::cout << "Getting cover for track id " << trackId << std::endl;
+		Service<CoverArt::IGrabber>::get()->getFromTrack(session, trackId, width);
+	}
+}
+
+
+int main(int argc, char *argv[])
+{
+	try
+	{
+		namespace po = boost::program_options;
+
+		// log to stdout
+		Service<Logger> logger {std::make_unique<StreamLogger>(std::cout)};
+
+
+		po::options_description desc{"Allowed options"};
+        desc.add_options()
+        ("help,h", "print usage message")
+		("conf,c", po::value<std::string>()->default_value("/etc/lms.conf"), "LMS config file")
+        ("default-cover,d", po::value<std::string>(), "Default cover path")
+        ("tracks,t", "dump covers for tracks")
+		("size,s", po::value<unsigned>()->default_value(512), "Requested cover size")
+		("quality,q", po::value<unsigned>()->default_value(75), "JPEG quality (1-100)")
+        ;
+
+        po::variables_map vm;
+        po::store(po::parse_command_line(argc, argv, desc), vm);
+
+        if (vm.count("help"))
+		{
+			std::cout << desc << std::endl;
+            return EXIT_SUCCESS;
+        }
+
+		Service<IConfig> config {createConfig(vm["conf"].as<std::string>())};
+
+		Service<CoverArt::IGrabber> coverArtService {CoverArt::createGrabber(argv[0],
+				vm["default-cover"].as<std::string>(),
+				config->getULong("cover-max-cache-size", 30) * 1000 * 1000,
+				config->getULong("cover-max-file-size", 10) * 1000 * 1000,
+				config->getULong("cover-jpeg-quality", vm["quality"].as<unsigned>())
+				)};
+
+		Database::Db db {config->getPath("working-dir") / "lms.db"};
+		Database::Session session {db};
+
+		if (vm.count("tracks"))
+			dumpTrackCovers(session, vm["size"].as<unsigned>());
+	}
+	catch( std::exception& e)
+	{
+		std::cerr << "Caught exception: " << e.what() << std::endl;
+		return EXIT_FAILURE;
+	}
+
+	return EXIT_SUCCESS;
+}
+