2 Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file src/asset.cc
21 * @brief Parent class for assets of DCPs.
25 #include <boost/filesystem.hpp>
26 #include <boost/lexical_cast.hpp>
27 #include <boost/function.hpp>
28 #include <libxml++/nodes/element.h>
34 #include "compose.hpp"
37 using boost::shared_ptr;
38 using boost::lexical_cast;
39 using namespace libdcp;
41 Asset::Asset (boost::filesystem::path directory, boost::filesystem::path file_name)
42 : _directory (directory)
43 , _file_name (file_name)
44 , _uuid (make_uuid ())
47 , _intrinsic_duration (0)
50 if (_file_name.empty ()) {
51 _file_name = _uuid + ".xml";
56 Asset::write_to_pkl (xmlpp::Node* node, bool interop) const
58 xmlpp::Node* asset = node->add_child ("Asset");
59 asset->add_child("Id")->add_child_text ("urn:uuid:" + _uuid);
60 asset->add_child("AnnotationText")->add_child_text (_file_name.string ());
61 asset->add_child("Hash")->add_child_text (digest ());
62 asset->add_child("Size")->add_child_text (lexical_cast<string> (boost::filesystem::file_size(path())));
64 asset->add_child("Type")->add_child_text (String::compose ("application/x-smpte-mxf;asdcpKind=%1", asdcp_kind ()));
66 asset->add_child("Type")->add_child_text ("application/mxf");
71 Asset::write_to_assetmap (xmlpp::Node* node) const
73 xmlpp::Node* asset = node->add_child ("Asset");
74 asset->add_child("Id")->add_child_text ("urn:uuid:" + _uuid);
75 xmlpp::Node* chunk_list = asset->add_child ("ChunkList");
76 xmlpp::Node* chunk = chunk_list->add_child ("Chunk");
77 chunk->add_child("Path")->add_child_text (_file_name.string ());
78 chunk->add_child("VolumeIndex")->add_child_text ("1");
79 chunk->add_child("Offset")->add_child_text ("0");
80 chunk->add_child("Length")->add_child_text (lexical_cast<string> (boost::filesystem::file_size(path())));
83 boost::filesystem::path
86 boost::filesystem::path p;
93 Asset::digest () const
95 if (_digest.empty ()) {
96 _digest = make_digest (path().string(), 0);
103 Asset::compute_digest (boost::function<void (float)> progress)
105 if (!_digest.empty ()) {
109 _digest = make_digest (path().string(), &progress);
113 Asset::equals (shared_ptr<const Asset> other, EqualityOptions, boost::function<void (NoteType, string)> note) const
115 if (_edit_rate != other->_edit_rate) {
116 note (ERROR, "asset edit rates differ");
120 if (_intrinsic_duration != other->_intrinsic_duration) {
121 note (ERROR, "asset intrinsic durations differ");
124 if (_duration != other->_duration) {
125 note (ERROR, "asset durations differ");