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/*
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
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.
*/
#include "content.h"
#include "reel_picture_asset.h"
#include "picture_mxf.h"
#include "compose.hpp"
#include <libcxml/cxml.h>
using std::bad_cast;
using std::string;
using std::stringstream;
using boost::shared_ptr;
using boost::lexical_cast;
using namespace dcp;
ReelPictureAsset::ReelPictureAsset ()
: _frame_rate (Fraction (24, 1))
, _screen_aspect_ratio (Fraction (1998, 1080))
{
}
ReelPictureAsset::ReelPictureAsset (shared_ptr<PictureMXF> content, int64_t entry_point)
: ReelAsset (content, entry_point)
, _frame_rate (content->frame_rate ())
, _screen_aspect_ratio (content->screen_aspect_ratio ())
{
}
ReelPictureAsset::ReelPictureAsset (shared_ptr<const cxml::Node> node)
: ReelAsset (node)
{
_frame_rate = Fraction (node->string_child ("FrameRate"));
try {
_screen_aspect_ratio = Fraction (node->string_child ("ScreenAspectRatio"));
} catch (XMLError& e) {
/* Maybe it's not a fraction */
}
try {
float f = node->number_child<float> ("ScreenAspectRatio");
_screen_aspect_ratio = Fraction (f * 1000, 1000);
} catch (bad_cast& e) {
}
}
void
ReelPictureAsset::write_to_cpl (xmlpp::Node* node, Standard standard) const
{
ReelAsset::write_to_cpl (node, standard);
xmlpp::Node::NodeList c = node->get_children ();
xmlpp::Node::NodeList::iterator i = c.begin();
while (i != c.end() && (*i)->get_name() != cpl_node_name ()) {
++i;
}
assert (i != c.end ());
(*i)->add_child ("FrameRate")->add_child_text (String::compose ("%1 %2", _frame_rate.numerator, _frame_rate.denominator));
if (standard == INTEROP) {
stringstream s;
s << std::fixed << std::setprecision (2) << (float (_screen_aspect_ratio.numerator) / _screen_aspect_ratio.denominator);
(*i)->add_child ("ScreenAspectRatio")->add_child_text (s.str ());
} else {
(*i)->add_child ("ScreenAspectRatio")->add_child_text (
String::compose ("%1 %2", _screen_aspect_ratio.numerator, _screen_aspect_ratio.denominator)
);
}
}
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