X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Fasset.cc;h=5b64b6ccfe73ffe72bd1049a1c3e227d6d19ddff;hb=201b6fdf572c04424d870ac4d07d1d1a8725b24c;hp=d8cf25dae5922f0d973991a2cef918ab1dd3ece8;hpb=f6ee90107839e0d750d8678b67c9d6d1d596d739;p=libdcp.git diff --git a/src/asset.cc b/src/asset.cc index d8cf25da..5b64b6cc 100644 --- a/src/asset.cc +++ b/src/asset.cc @@ -1,168 +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 "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 mxf_name, sigc::signal1* progress, int fps, int length) - : _directory (directory) - , _mxf_name (mxf_name) - , _progress (progress) - , _fps (fps) - , _length (length) - , _uuid (make_uuid ()) +#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 () { - + } -void -Asset::write_to_pkl (ostream& s) const +/** Create an Asset from a given file. + * @param file File name. + */ +Asset::Asset (boost::filesystem::path file) + : _file (file) { - s << " \n" - << " urn:uuid:" << _uuid << "\n" - << " " << _mxf_name << "\n" - << " " << digest() << "\n" - << " " << filesystem::file_size(mxf_path()) << "\n" - << " application/mxf\n" - << " \n"; + } -void -Asset::write_to_assetmap (ostream& s) const +/** 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) { - s << " \n" - << " urn:uuid:" << _uuid << "\n" - << " \n" - << " \n" - << " " << _mxf_name << "\n" - << " 1\n" - << " 0\n" - << " " << filesystem::file_size(mxf_path()) << "\n" - << " \n" - << " \n" - << " \n"; + } void -Asset::fill_writer_info (ASDCP::WriterInfo* writer_info) const +Asset::add_to_pkl (shared_ptr pkl, boost::filesystem::path root) const { - writer_info->ProductVersion = Metadata::instance()->product_version; - writer_info->CompanyName = Metadata::instance()->company_name; - writer_info->ProductName = Metadata::instance()->product_name.c_str(); - - writer_info->LabelSetType = ASDCP::LS_MXF_SMPTE; - unsigned int c; - Kumu::hex2bin (_uuid.c_str(), writer_info->AssetUUID, Kumu::UUID_Length, &c); - assert (c == Kumu::UUID_Length); + 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())); } -filesystem::path -Asset::mxf_path () const +void +Asset::write_to_assetmap (xmlpp::Node* node, boost::filesystem::path root) const { - filesystem::path p; - p /= _directory; - p /= _mxf_name; - return p; + DCP_ASSERT (_file); + write_file_to_assetmap (node, root, _file.get(), _id); } -list -Asset::equals (shared_ptr other, EqualityOptions opt) const +void +Asset::write_file_to_assetmap (xmlpp::Node* node, boost::filesystem::path root, boost::filesystem::path file, string id) { - list notes; - - if (opt.flags & LIBDCP_METADATA) { - if (_mxf_name != other->_mxf_name) { - notes.push_back ("MXF names differ"); - } - if (_fps != other->_fps) { - notes.push_back ("MXF frames per second differ"); - } - if (_length != other->_length) { - notes.push_back ("MXF lengths differ"); - } - } - - if (opt.flags & MXF_BITWISE) { - - if (digest() != other->digest()) { - notes.push_back ("MXF digests differ"); - } - - if (filesystem::file_size (mxf_path()) != filesystem::file_size (other->mxf_path())) { - notes.push_back (mxf_path().string() + " and " + other->mxf_path().string() + " sizes differ"); - return notes; - } - - ifstream a (mxf_path().string().c_str(), ios::binary); - ifstream b (other->mxf_path().string().c_str(), ios::binary); - - int buffer_size = 65536; - char abuffer[buffer_size]; - char bbuffer[buffer_size]; - - int n = filesystem::file_size (mxf_path ()); - - while (n) { - int const t = min (n, buffer_size); - a.read (abuffer, t); - b.read (bbuffer, t); - - if (memcmp (abuffer, bbuffer, t) != 0) { - notes.push_back (mxf_path().string() + " and " + other->mxf_path().string() + " content differs"); - return notes; - } - - n -= t; - } + 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; } - return notes; + 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 { - if (_digest.empty ()) { - _digest = make_digest (mxf_path().string(), 0); + DCP_ASSERT (_file); + + if (!_hash) { + _hash = make_digest (_file.get(), progress); } - return _digest; + return _hash.get(); } -int -Asset::length () const +bool +Asset::equals (boost::shared_ptr other, EqualityOptions, NoteHandler note) const { - return _length; + 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; +}