/*
- Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2021 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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,
+ DCP-o-matic 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.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <libdcp/types.h>
+
#include "ratio.h"
+#include "util.h"
+#include "config.h"
+#include <dcp/types.h>
+#include <cfloat>
#include "i18n.h"
+
using std::string;
-using std::stringstream;
using std::vector;
+using boost::optional;
-vector<Ratio const *> Ratio::_ratios;
-libdcp::Size
-Ratio::size (libdcp::Size full_frame) const
+vector<Ratio> Ratio::_ratios;
+
+
+void
+Ratio::setup_ratios ()
{
- if (_ratio < static_cast<float>(full_frame.width) / full_frame.height) {
- return libdcp::Size (full_frame.height * _ratio, full_frame.height);
- } else {
- return libdcp::Size (full_frame.width, full_frame.width / _ratio);
- }
+ /* This must only be called once as we rely on the addresses of objects in _ratios staying the same */
+ DCPOMATIC_ASSERT (_ratios.empty());
- return libdcp::Size ();
+ _ratios.push_back (Ratio(float(1290) / 1080, "119", _("1.19"), {}, "119"));
+ _ratios.push_back (Ratio(float(1440) / 1080, "133", _("1.33 (4:3)"), {}, "133"));
+ _ratios.push_back (Ratio(float(1485) / 1080, "138", _("1.38 (Academy)"), {}, "137"));
+ _ratios.push_back (Ratio(float(1544) / 1080, "143", _("1.43 (IMAX)"), {}, "143"));
+ _ratios.push_back (Ratio(float(1800) / 1080, "166", _("1.66"), {}, "166"));
+ _ratios.push_back (Ratio(float(1920) / 1080, "178", _("1.78 (16:9 or HD)"), {}, "178"));
+ _ratios.push_back (Ratio(float(1998) / 1080, "185", _("1.85 (Flat)"), string(_("DCI Flat")), "F"));
+ _ratios.push_back (Ratio(float(2048) / 872, "235", _("2.35 (35mm Scope)"), {}, "S"));
+ _ratios.push_back (Ratio(float(2048) / 858, "239", _("2.39 (Scope)"), string(_("DCI Scope")), "S"));
+ _ratios.push_back (Ratio(float(2048) / 1080, "190", _("1.90 (Full frame)"), string(_("Full frame")), "C"));
}
-void
-Ratio::setup_ratios ()
+vector<Ratio const *>
+Ratio::all ()
{
- _ratios.push_back (new Ratio (float(1285) / 1080, "119", _("1.19"), "F"));
- _ratios.push_back (new Ratio (float(1436) / 1080, "133", _("4:3"), "F"));
- _ratios.push_back (new Ratio (float(1480) / 1080, "137", _("Academy"), "F"));
- _ratios.push_back (new Ratio (float(1485) / 1080, "138", _("1.375"), "F"));
- _ratios.push_back (new Ratio (float(1793) / 1080, "166", _("1.66"), "F"));
- _ratios.push_back (new Ratio (float(1920) / 1080, "178", _("16:9"), "F"));
- _ratios.push_back (new Ratio (float(1998) / 1080, "185", _("Flat"), "F"));
- _ratios.push_back (new Ratio (float(2048) / 858, "239", _("Scope"), "S"));
- _ratios.push_back (new Ratio (float(2048) / 1080, "full-frame", _("Full frame"), "C"));
+ vector<Ratio const *> pointers;
+ for (Ratio& ratio: _ratios) {
+ pointers.push_back (&ratio);
+ }
+ return pointers;
}
+
Ratio const *
Ratio::from_id (string i)
{
- vector<Ratio const *>::iterator j = _ratios.begin ();
- while (j != _ratios.end() && (*j)->id() != i) {
+ /* We removed the ratio with id 137; replace it with 138 */
+ if (i == "137") {
+ i = "138";
+ }
+
+ auto j = _ratios.begin ();
+ while (j != _ratios.end() && j->id() != i) {
+ ++j;
+ }
+
+ if (j == _ratios.end()) {
+ return nullptr;
+ }
+
+ return &(*j);
+}
+
+
+/** @return Ratio corresponding to a given fractional ratio (+/- 0.01), or 0 */
+Ratio const *
+Ratio::from_ratio (float r)
+{
+ auto j = _ratios.begin ();
+ while (j != _ratios.end() && fabs(j->ratio() - r) > 0.01) {
++j;
}
if (j == _ratios.end ()) {
- return 0;
+ return nullptr;
+ }
+
+ return &(*j);
+}
+
+
+Ratio const *
+Ratio::nearest_from_ratio (float r)
+{
+ vector<Ratio>::const_iterator nearest = _ratios.end();
+ float distance = FLT_MAX;
+
+ for (auto i = _ratios.begin(); i != _ratios.end(); ++i) {
+ float const d = fabs(i->ratio() - r);
+ if (d < distance) {
+ distance = d;
+ nearest = i;
+ }
+ }
+
+ DCPOMATIC_ASSERT (nearest != _ratios.end());
+
+ return &(*nearest);
+}
+
+vector<Ratio const *>
+Ratio::containers ()
+{
+ if (Config::instance()->allow_any_container()) {
+ return all();
+ }
+
+ vector<Ratio const *> r;
+ r.push_back (Ratio::from_id ("185"));
+ r.push_back (Ratio::from_id ("239"));
+ return r;
+}
+
+
+string
+Ratio::container_nickname () const
+{
+ if (!_container_nickname) {
+ /* Fall back to the image nickname; this just for when non-standard container
+ ratios are enabled.
+ */
+ return _image_nickname;
}
- return *j;
+ return *_container_nickname;
}