X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fasset.cc;h=5b64b6ccfe73ffe72bd1049a1c3e227d6d19ddff;hb=8331c050aab2e53ff7848c354e6790c681600dee;hp=62fdddf6ef312918e2e3d40ba6e3f42c0dad66e5;hpb=fd8a665cbb0a9a44995f88567747e2379a6f4098;p=libdcp.git diff --git a/src/asset.cc b/src/asset.cc index 62fdddf6..5b64b6cc 100644 --- a/src/asset.cc +++ b/src/asset.cc @@ -1,94 +1,173 @@ /* - Copyright (C) 2012 Carl Hetherington + Copyright (C) 2014-2018 Carl Hetherington - 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 . + + 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 Parent class for assets of DCPs. + * @brief Asset class. */ -#include -#include -#include -#include -#include -#include "AS_DCP.h" -#include "KM_util.h" +#include "raw_convert.h" #include "asset.h" #include "util.h" -#include "metadata.h" +#include "exceptions.h" +#include "dcp_assert.h" +#include "compose.hpp" +#include "pkl.h" +#include +#include -using namespace std; -using namespace boost; -using namespace libdcp; +using std::string; +using boost::function; +using boost::shared_ptr; +using boost::optional; +using namespace dcp; -Asset::Asset (string directory, string file_name) - : _directory (directory) - , _file_name (file_name) - , _uuid (make_uuid ()) +/** Create an Asset with a randomly-generated ID */ +Asset::Asset () { - if (_file_name.empty ()) { - _file_name = _uuid + ".xml"; - } + +} + +/** 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::write_to_pkl (xmlpp::Element* p) const +Asset::add_to_pkl (shared_ptr pkl, boost::filesystem::path root) const { - xmlpp::Element* asset = p->add_child("Asset"); - asset->add_child("Id")->add_child_text("urn:uuid:" + _uuid); - asset->add_child("AnnotationText")->add_child_text (_file_name); - asset->add_child("Hash")->add_child_text (digest()); - asset->add_child("Size")->add_child_text (boost::lexical_cast (filesystem::file_size(path()))); - asset->add_child("Type")->add_child_text ("application/mxf"); + DCP_ASSERT (_file); + + optional 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 (ostream& s) const +Asset::write_to_assetmap (xmlpp::Node* node, boost::filesystem::path root) const { - s << " \n" - << " urn:uuid:" << _uuid << "\n" - << " \n" - << " \n" - << " " << _file_name << "\n" - << " 1\n" - << " 0\n" - << " " << filesystem::file_size(path()) << "\n" - << " \n" - << " \n" - << " \n"; + DCP_ASSERT (_file); + write_file_to_assetmap (node, root, _file.get(), _id); } -filesystem::path -Asset::path () const +void +Asset::write_file_to_assetmap (xmlpp::Node* node, boost::filesystem::path root, boost::filesystem::path file, string id) { - filesystem::path p; - p /= _directory; - p /= _file_name; - return p; + optional 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 (boost::filesystem::file_size (file))); } string -Asset::digest () const +Asset::hash (function progress) const +{ + DCP_ASSERT (_file); + + if (!_hash) { + _hash = make_digest (_file.get(), progress); + } + + return _hash.get(); +} + +bool +Asset::equals (boost::shared_ptr other, EqualityOptions, NoteHandler note) const { - if (_digest.empty ()) { - _digest = make_digest (path().string(), 0); + if (_hash != other->_hash) { + note (DCP_ERROR, "Asset: hashes differ"); + return false; } - return _digest; + 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 (); +} + +void +Asset::set_hash (string hash) +{ + _hash = hash; +}