/*
- Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2014-2018 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of libdcp.
+
+ libdcp 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.
- This program is distributed in the hope that it will be useful,
+ libdcp 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 this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with libdcp. If not, see <http://www.gnu.org/licenses/>.
+
+ In addition, as a special exception, the copyright holders give
+ permission to link the code of portions of this program with the
+ OpenSSL library under certain conditions as described in each
+ individual source file, and distribute linked combinations
+ including the two.
+ You must obey the GNU General Public License in all respects
+ for all of the code used other than OpenSSL. If you modify
+ file(s) with this exception, you may extend this exception to your
+ version of the file(s), but you are not obligated to do so. If you
+ do not wish to do so, delete this exception statement from your
+ version. If you delete this exception statement from all source
+ files in the program, then also delete it here.
*/
+/** @file src/asset.cc
+ * @brief Asset class.
+ */
+
+#include "raw_convert.h"
#include "asset.h"
+#include "util.h"
+#include "exceptions.h"
+#include "dcp_assert.h"
+#include "compose.hpp"
+#include "pkl.h"
+#include <libxml++/libxml++.h>
+#include <boost/algorithm/string.hpp>
using std::string;
+using boost::function;
+using std::shared_ptr;
+using boost::optional;
using namespace dcp;
+/** Create an Asset with a randomly-generated ID */
Asset::Asset ()
{
}
-Asset::Asset (string id)
+/** Create an Asset from a given file.
+ * @param file File name.
+ */
+Asset::Asset (boost::filesystem::path file)
+ : _file (file)
+{
+
+}
+
+/** Create an Asset from a given file with a known ID.
+ * @param file File name.
+ * @param id ID.
+ */
+Asset::Asset (string id, boost::filesystem::path file)
: Object (id)
+ , _file (file)
{
}
+
+void
+Asset::add_to_pkl (shared_ptr<PKL> pkl, boost::filesystem::path root) const
+{
+ DCP_ASSERT (_file);
+
+ optional<boost::filesystem::path> path = relative_to_root (
+ boost::filesystem::canonical (root),
+ boost::filesystem::canonical (_file.get())
+ );
+
+ if (!path) {
+ /* The path of this asset is not within our DCP, so we assume it's an external
+ (referenced) one.
+ */
+ return;
+ }
+
+ pkl->add_asset (_id, _id, hash(), boost::filesystem::file_size (_file.get()), pkl_type (pkl->standard()));
+}
+
+void
+Asset::write_to_assetmap (xmlpp::Node* node, boost::filesystem::path root) const
+{
+ DCP_ASSERT (_file);
+ write_file_to_assetmap (node, root, _file.get(), _id);
+}
+
+void
+Asset::write_file_to_assetmap (xmlpp::Node* node, boost::filesystem::path root, boost::filesystem::path file, string id)
+{
+ optional<boost::filesystem::path> path = relative_to_root (
+ boost::filesystem::canonical (root),
+ boost::filesystem::canonical (file)
+ );
+
+ if (!path) {
+ /* The path of this asset is not within our DCP, so we assume it's an external
+ (referenced) one.
+ */
+ return;
+ }
+
+ xmlpp::Node* asset = node->add_child ("Asset");
+ asset->add_child("Id")->add_child_text ("urn:uuid:" + id);
+ xmlpp::Node* chunk_list = asset->add_child ("ChunkList");
+ xmlpp::Node* chunk = chunk_list->add_child ("Chunk");
+
+ chunk->add_child("Path")->add_child_text (path.get().generic_string());
+ chunk->add_child("VolumeIndex")->add_child_text ("1");
+ chunk->add_child("Offset")->add_child_text ("0");
+ chunk->add_child("Length")->add_child_text (raw_convert<string> (boost::filesystem::file_size (file)));
+}
+
+string
+Asset::hash (function<void (float)> progress) const
+{
+ DCP_ASSERT (_file);
+
+ if (!_hash) {
+ _hash = make_digest (_file.get(), progress);
+ }
+
+ return _hash.get();
+}
+
+bool
+Asset::equals (std::shared_ptr<const Asset> other, EqualityOptions, NoteHandler note) const
+{
+ if (_hash != other->_hash) {
+ note (DCP_ERROR, "Asset: hashes differ");
+ return false;
+ }
+
+ return true;
+}
+
+/** Set the file that holds this asset on disk. Calling this function
+ * clears this object's store of its hash, so you should call ::hash
+ * after this.
+ *
+ * @param file New file's path.
+ */
+void
+Asset::set_file (boost::filesystem::path file) const
+{
+ _file = boost::filesystem::absolute (file);
+ _hash = optional<string> ();
+}
+
+void
+Asset::set_hash (string hash)
+{
+ _hash = hash;
+}