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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 made up of MXF files.
*/
#include <iostream>
#include <fstream>
#include <boost/filesystem.hpp>
#include "AS_DCP.h"
#include "KM_util.h"
#include "mxf_asset.h"
#include "util.h"
#include "metadata.h"
using namespace std;
using namespace boost;
using namespace libdcp;
MXFAsset::MXFAsset (string directory, string file_name, sigc::signal1<void, float>* progress, int fps, int entry_point, int length)
: Asset (directory, file_name)
, _progress (progress)
, _fps (fps)
, _entry_point (entry_point)
, _length (length)
{
}
void
MXFAsset::fill_writer_info (ASDCP::WriterInfo* writer_info) 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);
}
list<string>
MXFAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt) const
{
shared_ptr<const MXFAsset> other_mxf = dynamic_pointer_cast<const MXFAsset> (other);
if (!other_mxf) {
return list<string> ();
}
list<string> notes;
if (opt.flags & LIBDCP_METADATA) {
if (_file_name != other_mxf->_file_name) {
notes.push_back ("MXF names differ");
}
if (_fps != other_mxf->_fps) {
notes.push_back ("MXF frames per second differ");
}
if (_length != other_mxf->_length) {
notes.push_back ("MXF lengths differ");
}
}
if (opt.flags & MXF_BITWISE) {
if (digest() != other_mxf->digest()) {
notes.push_back ("MXF digests differ");
}
if (filesystem::file_size (path()) != filesystem::file_size (other_mxf->path())) {
notes.push_back (path().string() + " and " + other_mxf->path().string() + " sizes differ");
return notes;
}
ifstream a (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 (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 (path().string() + " and " + other_mxf->path().string() + " content differs");
return notes;
}
n -= t;
}
}
return notes;
}
int
MXFAsset::length () const
{
return _length;
}
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