Finish initial CPL markers support.markers

1 files changed, 140 insertions, 0 deletions

diff --git a/src/reel_markers_asset.cc b/src/reel_markers_asset.cc
new file mode 100644
index 00000000..8c5f66dd
--- /dev/null
+++ b/src/reel_markers_asset.cc
@@ -0,0 +1,140 @@
+/*
+    Copyright (C) 2019 Carl Hetherington <cth@carlh.net>
+
+    This file is part of libdcp.
+
+    libdcp 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.
+
+    libdcp 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 libdcp.  If not, see <http://www.gnu.org/licenses/>.
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of portions of this program with the
+    OpenSSL library under certain conditions as described in each
+    individual source file, and distribute linked combinations
+    including the two.
+
+    You must obey the GNU General Public License in all respects
+    for all of the code used other than OpenSSL.  If you modify
+    file(s) with this exception, you may extend this exception to your
+    version of the file(s), but you are not obligated to do so.  If you
+    do not wish to do so, delete this exception statement from your
+    version.  If you delete this exception statement from all source
+    files in the program, then also delete it here.
+*/
+
+#include "reel_markers_asset.h"
+#include "raw_convert.h"
+#include "dcp_assert.h"
+#include <libxml++/libxml++.h>
+#include <boost/foreach.hpp>
+
+using std::string;
+using std::map;
+using std::max;
+using boost::optional;
+using boost::shared_ptr;
+using namespace dcp;
+
+ReelMarkersAsset::ReelMarkersAsset (Fraction edit_rate, int64_t entry_point)
+	: ReelAsset (make_uuid(), edit_rate, 0, entry_point)
+{
+
+}
+
+ReelMarkersAsset::ReelMarkersAsset (cxml::ConstNodePtr node)
+	: ReelAsset (node)
+{
+	cxml::ConstNodePtr list = node->node_child ("MarkerList");
+	DCP_ASSERT (list);
+	BOOST_FOREACH (cxml::ConstNodePtr i, list->node_children("Marker")) {
+		set (marker_from_string(i->string_child("Label")), dcp::Time(i->number_child<int64_t>("Offset"), edit_rate().as_float(), edit_rate().numerator));
+	}
+}
+
+string
+ReelMarkersAsset::cpl_node_name (Standard) const
+{
+	return "MainMarkers";
+}
+
+void
+ReelMarkersAsset::set (Marker m, Time t)
+{
+	_markers[m] = t;
+	update_duration ();
+}
+
+void
+ReelMarkersAsset::unset (Marker m)
+{
+	_markers.erase (m);
+	update_duration ();
+}
+
+optional<Time>
+ReelMarkersAsset::get (Marker m) const
+{
+	map<Marker, Time>::const_iterator i = _markers.find (m);
+	if (i == _markers.end ()) {
+		return optional<Time>();
+	}
+	return i->second;
+}
+
+void
+ReelMarkersAsset::update_duration ()
+{
+	int const tcr = edit_rate().numerator / edit_rate().denominator;
+	_intrinsic_duration = 0;
+	for (map<Marker, Time>::const_iterator i = _markers.begin(); i != _markers.end(); ++i) {
+		_intrinsic_duration = max(_intrinsic_duration, i->second.as_editable_units(tcr));
+	}
+	_duration = _intrinsic_duration;
+}
+
+xmlpp::Node*
+ReelMarkersAsset::write_to_cpl (xmlpp::Node* node, Standard standard) const
+{
+	int const tcr = edit_rate().numerator / edit_rate().denominator;
+	xmlpp::Node* asset = write_to_cpl_base (node, standard, optional<string>());
+	xmlpp::Node* ml = asset->add_child("MarkerList");
+	for (map<Marker, Time>::const_iterator i = _markers.begin(); i != _markers.end(); ++i) {
+		xmlpp::Node* m = ml->add_child("Marker");
+		m->add_child("Label")->add_child_text (marker_to_string(i->first));
+		m->add_child("Offset")->add_child_text (raw_convert<string>(i->second.as_editable_units(tcr)));
+	}
+
+	return asset;
+}
+
+bool
+ReelMarkersAsset::equals (shared_ptr<const ReelMarkersAsset> other, EqualityOptions opt, NoteHandler note) const
+{
+	if (!asset_equals(other, opt, note)) {
+		return false;
+	}
+
+	if (get(FFOC) != other->get(FFOC) ||
+	    get(LFOC) != other->get(LFOC) ||
+	    get(FFTC) != other->get(FFTC) ||
+	    get(LFTC) != other->get(LFTC) ||
+	    get(FFOI) != other->get(FFOI) ||
+	    get(LFOI) != other->get(LFOI) ||
+	    get(FFEC) != other->get(FFEC) ||
+	    get(LFEC) != other->get(LFEC) ||
+	    get(FFMC) != other->get(FFMC) ||
+	    get(LFMC) != other->get(LFMC)) {
+		return false;
+	}
+
+	return true;
+}