X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Fasset.cc;h=5b64b6ccfe73ffe72bd1049a1c3e227d6d19ddff;hb=5292108cb0816789a58ac469114d53ac2a5b5bde;hp=c566a1e56b22d147da78eea129475fccad9c9187;hpb=c2bac22380bea453665a24c6f39200a977771daf;p=libdcp.git diff --git a/src/asset.cc b/src/asset.cc index c566a1e5..5b64b6cc 100644 --- a/src/asset.cc +++ b/src/asset.cc @@ -1,116 +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 -#include "AS_DCP.h" -#include "KM_util.h" +#include "raw_convert.h" #include "asset.h" #include "util.h" -#include "metadata.h" - -using namespace std; -using namespace boost; -using namespace libdcp; - -Asset::Asset (string directory, string file_name, int edit_rate, int intrinsic_duration) - : _directory (directory) - , _file_name (file_name) - , _uuid (make_uuid ()) - , _edit_rate (edit_rate) - , _entry_point (0) - , _intrinsic_duration (intrinsic_duration) - , _duration (intrinsic_duration) +#include "exceptions.h" +#include "dcp_assert.h" +#include "compose.hpp" +#include "pkl.h" +#include +#include + +using std::string; +using boost::function; +using boost::shared_ptr; +using boost::optional; +using namespace dcp; + +/** Create an Asset with a randomly-generated ID */ +Asset::Asset () +{ + +} + +/** 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, boost::filesystem::path root) const { - if (_file_name.empty ()) { - _file_name = _uuid + ".xml"; + 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_pkl (xmlpp::Node* node) const +Asset::write_to_assetmap (xmlpp::Node* node, boost::filesystem::path root) const { - xmlpp::Node* asset = node->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 (lexical_cast (filesystem::file_size(path()))); - asset->add_child("Type")->add_child_text ("application/mxf"); + DCP_ASSERT (_file); + write_file_to_assetmap (node, root, _file.get(), _id); } void -Asset::write_to_assetmap (xmlpp::Node* node) const +Asset::write_file_to_assetmap (xmlpp::Node* node, boost::filesystem::path root, boost::filesystem::path file, string id) { + 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:" + _uuid); + 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 (_file_name); + + 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 (lexical_cast (filesystem::file_size(path()))); -} - -filesystem::path -Asset::path () const -{ - filesystem::path p; - p /= _directory; - p /= _file_name; - return p; + chunk->add_child("Length")->add_child_text (raw_convert (boost::filesystem::file_size (file))); } string -Asset::digest () const +Asset::hash (function progress) const { - if (_digest.empty ()) { - _digest = make_digest (path().string()); + DCP_ASSERT (_file); + + if (!_hash) { + _hash = make_digest (_file.get(), progress); } - return _digest; + return _hash.get(); } bool -Asset::equals (shared_ptr other, EqualityOptions, boost::function note) const +Asset::equals (boost::shared_ptr other, EqualityOptions, NoteHandler note) const { - if (_edit_rate != other->_edit_rate) { - note (ERROR, "MXF edit rates differ"); - return false; - } - - if (_intrinsic_duration != other->_intrinsic_duration) { - note (ERROR, "MXF intrinsic durations differ"); - return false; - } - - if (_duration != other->_duration) { - note (ERROR, "MXF durations differ"); + 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 (); +} + +void +Asset::set_hash (string hash) +{ + _hash = hash; +}