/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2014 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
*/
/** @file src/asset.cc
- * @brief Parent class for assets of DCPs.
+ * @brief Asset class.
*/
-#include <iostream>
-#include <fstream>
-#include <boost/filesystem.hpp>
-#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<void, float>* 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 <libxml++/libxml++.h>
+
+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
-{
- s << " <Asset>\n"
- << " <Id>urn:uuid:" << _uuid << "</Id>\n"
- << " <AnnotationText>" << _mxf_name << "</AnnotationText>\n"
- << " <Hash>" << _digest << "</Hash>\n"
- << " <Size>" << filesystem::file_size(mxf_path()) << "</Size>\n"
- << " <Type>application/mxf</Type>\n"
- << " </Asset>\n";
}
-void
-Asset::write_to_assetmap (ostream& s) const
+/** Create an Asset from a given file.
+ * @param file File name.
+ */
+Asset::Asset (boost::filesystem::path file)
+ : _file (file)
{
- s << " <Asset>\n"
- << " <Id>urn:uuid:" << _uuid << "</Id>\n"
- << " <ChunkList>\n"
- << " <Chunk>\n"
- << " <Path>" << _mxf_name << "</Path>\n"
- << " <VolumeIndex>1</VolumeIndex>\n"
- << " <Offset>0</Offset>\n"
- << " <Length>" << filesystem::file_size(mxf_path()) << "</Length>\n"
- << " </Chunk>\n"
- << " </ChunkList>\n"
- << " </Asset>\n";
+
}
void
-Asset::fill_writer_info (ASDCP::WriterInfo* writer_info) const
+Asset::write_to_pkl (xmlpp::Node* node, Standard standard) 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.empty ());
+
+ 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<string> (boost::filesystem::file_size (_file)));
+ asset->add_child("Type")->add_child_text (pkl_type (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.empty ());
+
+ 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");
+ optional<boost::filesystem::path> path = relative_to_root (root, _file);
+ if (!path) {
+ throw MiscError (String::compose ("Asset %1 is not within the directory %2", _file, root));
+ }
+ chunk->add_child("Path")->add_child_text (path.get().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 (_file)));
}
-list<string>
-Asset::equals (Asset const & other, EqualityFlags flags) const
+string
+Asset::hash (function<void (float)> progress) const
{
- list<string> 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;
- }
+ DCP_ASSERT (!_file.empty ());
- 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);
+ if (_hash.empty ()) {
+ _hash = make_digest (_file, progress);
+ }
- 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;
- }
- }
+ return _hash;
+}
- n -= t;
- }
+bool
+Asset::equals (boost::shared_ptr<const Asset> other, EqualityOptions, NoteHandler note) const
+{
+ if (_hash != other->_hash) {
+ note (DCP_ERROR, "Asset: hashes differ");
+ return false;
}
- return notes;
+ return true;
}
+
+void
+Asset::set_file (boost::filesystem::path file) const
+{
+ _file = boost::filesystem::absolute (file);
+ _hash.clear ();
+}
+