Stop using video directory and hard-linking (#2756).

Instead store details of a previously-created asset in the film's
metadata and then look there for potential video files to re-use.

1 files changed, 79 insertions, 0 deletions

diff --git a/src/lib/remembered_asset.h b/src/lib/remembered_asset.h
new file mode 100644
index 000000000..ec9344e24
--- /dev/null
+++ b/src/lib/remembered_asset.h
@@ -0,0 +1,79 @@
+/*
+    Copyright (C) 2024 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic 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 2 of the License, or
+    (at your option) any later version.
+
+    DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#ifndef DCPOMATIC_REMEMBERED_ASSET_H
+#define DCPOMATIC_REMEMBERED_ASSET_H
+
+
+#include "dcpomatic_time.h"
+#include <libcxml/cxml.h>
+#include <dcp/warnings.h>
+LIBDCP_DISABLE_WARNINGS
+#include <libxml++/libxml++.h>
+LIBDCP_ENABLE_WARNINGS
+#include <boost/filesystem.hpp>
+
+
+class RememberedAsset
+{
+public:
+	explicit RememberedAsset(cxml::ConstNodePtr node);
+
+	RememberedAsset(boost::filesystem::path filename, dcpomatic::DCPTimePeriod period, std::string identifier)
+		: _filename(filename)
+		, _period(period)
+		, _identifier(std::move(identifier))
+	{}
+
+	void as_xml(xmlpp::Element* parent) const;
+
+	boost::filesystem::path filename() const {
+		return _filename;
+	}
+
+	dcpomatic::DCPTimePeriod period() const {
+		return _period;
+	}
+
+	std::string identifier() const {
+		return _identifier;
+	}
+
+private:
+	boost::filesystem::path _filename;
+	dcpomatic::DCPTimePeriod _period;
+	std::string _identifier;
+};
+
+
+boost::optional<boost::filesystem::path> find_asset(
+	std::vector<RememberedAsset> const& assets, boost::filesystem::path directory, dcpomatic::DCPTimePeriod period, std::string identifier
+	);
+
+
+void clean_up_asset_directory(boost::filesystem::path directory);
+
+
+void preserve_assets(boost::filesystem::path search, boost::filesystem::path assets_path);
+
+
+#endif
+