X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Fasset.cc;h=7d3a9813aa81b8a5be5546a63527eb782d69059f;hb=cfea0afd5971ee749142616fe7bc0bb70526619e;hp=86bd54c56d700e21446d3c3a016f24011f8a440a;hpb=da2f0d96f3c5ffa73bfecd9df613b23200e862f7;p=libdcp.git diff --git a/src/asset.cc b/src/asset.cc index 86bd54c5..7d3a9813 100644 --- a/src/asset.cc +++ b/src/asset.cc @@ -1,138 +1,171 @@ /* - Copyright (C) 2012 Carl Hetherington + Copyright (C) 2014-2015 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 +#include + +using std::string; +using boost::function; +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) +{ + +} + +/** 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" - << " " << _mxf_name << "\n" - << " " << _digest << "\n" - << " " << filesystem::file_size(mxf_path()) << "\n" - << " application/mxf\n" - << " \n"; + } void -Asset::write_to_assetmap (ostream& s) const +Asset::write_to_pkl (xmlpp::Node* node, boost::filesystem::path root, Standard standard) const { - s << " \n" - << " urn:uuid:" << _uuid << "\n" - << " \n" - << " \n" - << " " << _mxf_name << "\n" - << " 1\n" - << " 0\n" - << " " << filesystem::file_size(mxf_path()) << "\n" - << " \n" - << " \n" - << " \n"; + 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; + } + + xmlpp::Node* asset = node->add_child ("Asset"); + asset->add_child("Id")->add_child_text ("urn:uuid:" + _id); + asset->add_child("AnnotationText")->add_child_text (_id); + asset->add_child("Hash")->add_child_text (hash ()); + asset->add_child("Size")->add_child_text (raw_convert (boost::filesystem::file_size (_file.get()))); + asset->add_child("Type")->add_child_text (pkl_type (standard)); } void -Asset::fill_writer_info (ASDCP::WriterInfo* writer_info) const +Asset::write_to_assetmap (xmlpp::Node* node, 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; + } + + 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.get()))); } -filesystem::path -Asset::mxf_path () const +string +Asset::hash (function progress) const { - filesystem::path p; - p /= _directory; - p /= _mxf_name; - return p; + DCP_ASSERT (_file); + + if (!_hash) { + _hash = make_digest (_file.get(), progress); + } + + return _hash.get(); } -list -Asset::equals (Asset const & other, EqualityFlags flags) const +bool +Asset::equals (boost::shared_ptr other, EqualityOptions, NoteHandler note) const { - list notes; - - switch (flags) { - case LIBDCP_METADATA: - break; - case MXF_BITWISE: - 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().c_str(), ios::binary); - ifstream b (other.mxf_path().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); - - for (int i = 0; i < t; ++i) { - if (abuffer[i] != bbuffer[i]) { - notes.push_back (mxf_path().string() + " and " + other.mxf_path().string() + " content differs"); - return notes; - } - } - - n -= t; - } + if (_hash != other->_hash) { + note (DCP_ERROR, "Asset: hashes differ"); + return false; } - return notes; + 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; }