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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
This program 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,
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.
*/
/** @file src/asset.cc
* @brief Parent class for assets of DCPs.
*/
#include <iostream>
#include <boost/filesystem.hpp>
#include <boost/function.hpp>
#include <libxml++/nodes/element.h>
#include "AS_DCP.h"
#include "KM_util.h"
#include "asset.h"
#include "util.h"
#include "metadata.h"
#include "compose.hpp"
#include "raw_convert.h"
using std::string;
using boost::shared_ptr;
using namespace libdcp;
Asset::Asset (boost::filesystem::path directory, boost::filesystem::path file_name)
: _directory (directory)
, _file_name (file_name)
, _uuid (make_uuid ())
, _edit_rate (0)
, _entry_point (0)
, _intrinsic_duration (0)
, _duration (0)
{
if (_file_name.empty ()) {
_file_name = _uuid + ".xml";
}
}
void
Asset::write_to_pkl (xmlpp::Node* node, bool interop) 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.string ());
asset->add_child("Hash")->add_child_text (digest ());
asset->add_child("Size")->add_child_text (raw_convert<string> (boost::filesystem::file_size(path())));
if (interop) {
asset->add_child("Type")->add_child_text (String::compose ("application/x-smpte-mxf;asdcpKind=%1", asdcp_kind ()));
} else {
asset->add_child("Type")->add_child_text ("application/mxf");
}
}
void
Asset::write_to_assetmap (xmlpp::Node* node) const
{
xmlpp::Node* asset = node->add_child ("Asset");
asset->add_child("Id")->add_child_text ("urn:uuid:" + _uuid);
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.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<string> (boost::filesystem::file_size(path())));
}
boost::filesystem::path
Asset::path () const
{
boost::filesystem::path p;
p /= _directory;
p /= _file_name;
return p;
}
string
Asset::digest () const
{
if (_digest.empty ()) {
_digest = make_digest (path().string(), 0);
}
return _digest;
}
void
Asset::compute_digest (boost::function<void (float)> progress)
{
if (!_digest.empty ()) {
return;
}
_digest = make_digest (path().string(), &progress);
}
bool
Asset::equals (shared_ptr<const Asset> other, EqualityOptions, boost::function<void (NoteType, string)> note) const
{
if (_edit_rate != other->_edit_rate) {
note (ERROR, "asset edit rates differ");
return false;
}
if (_intrinsic_duration != other->_intrinsic_duration) {
note (ERROR, "asset intrinsic durations differ");
}
if (_duration != other->_duration) {
note (ERROR, "asset durations differ");
}
return true;
}
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