2 Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file src/format.cc
21 * @brief Class to describe a format (aspect ratio) that a Film should
37 using std::setprecision;
38 using std::stringstream;
40 using boost::shared_ptr;
43 vector<Format const *> Format::_formats;
45 /** @return A name to be presented to the user */
47 FixedFormat::name () const
50 if (!_nickname.empty ()) {
51 s << _nickname << N_(" (");
54 s << setprecision(3) << _ratio << N_(":1");
56 if (!_nickname.empty ()) {
63 /** Fill our _formats vector with all available formats */
65 Format::setup_formats ()
67 /// TRANSLATORS: these are film picture aspect ratios; "Academy" means 1.37, "Flat" 1.85 and "Scope" 2.39.
69 new FixedFormat (1.19, libdcp::Size (1285, 1080), "119", _("1.19"), "F"
73 new FixedFormat (4.0 / 3.0, libdcp::Size (1436, 1080), "133", _("4:3"), "F"
77 new FixedFormat (1.38, libdcp::Size (1485, 1080), "138", _("1.375"), "F"
81 new FixedFormat (4.0 / 3.0, libdcp::Size (1998, 1080), "133-in-flat", _("4:3 within Flat"), "F"
85 new FixedFormat (1.37, libdcp::Size (1480, 1080), "137", _("Academy"), "F"
89 new FixedFormat (1.66, libdcp::Size (1793, 1080), "166", _("1.66"), "F"
93 new FixedFormat (1.66, libdcp::Size (1998, 1080), "166-in-flat", _("1.66 within Flat"), "F"
97 new FixedFormat (1.78, libdcp::Size (1998, 1080), "178-in-flat", _("16:9 within Flat"), "F"
101 new FixedFormat (1.78, libdcp::Size (1920, 1080), "178", _("16:9"), "F"
105 new FixedFormat (1.85, libdcp::Size (1998, 1080), "185", _("Flat"), "F"
109 new FixedFormat (1.78, libdcp::Size (2048, 858), "178-in-scope", _("16:9 within Scope"), "S"
113 new FixedFormat (2.39, libdcp::Size (2048, 858), "239", _("Scope"), "S"
117 new FixedFormat (1.896, libdcp::Size (2048, 1080), "full-frame", _("Full frame"), "C"
121 new VariableFormat (libdcp::Size (1998, 1080), "var-185", _("Flat without stretch"), "F"
125 new VariableFormat (libdcp::Size (2048, 858), "var-239", _("Scope without stretch"), "S"
129 /** @param n Nickname.
130 * @return Matching Format, or 0.
133 Format::from_nickname (string n)
135 vector<Format const *>::iterator i = _formats.begin ();
136 while (i != _formats.end() && (*i)->nickname() != n) {
140 if (i == _formats.end ()) {
148 * @return Matching Format, or 0.
151 Format::from_id (string i)
153 vector<Format const *>::iterator j = _formats.begin ();
154 while (j != _formats.end() && (*j)->id() != i) {
158 if (j == _formats.end ()) {
165 /** @return All available formats */
166 vector<Format const *>
173 * @param dcp Size (in pixels) of the images that we should put in a DCP.
174 * @param id ID (e.g. 185)
175 * @param n Nick name (e.g. Flat)
177 FixedFormat::FixedFormat (float r, libdcp::Size dcp, string id, string n, string d)
178 : Format (dcp, id, n, d)
184 /** @return Number of pixels (int the DCP image) to pad either side of the film
185 * (so there are dcp_padding() pixels on the left and dcp_padding() on the right)
188 Format::dcp_padding (shared_ptr<const Film> f) const
190 int p = rint ((_dcp_size.width - (_dcp_size.height * ratio(f))) / 2.0);
192 /* This comes out -ve for Scope; bodge it */
201 Format::container_ratio () const
203 return static_cast<float> (_dcp_size.width) / _dcp_size.height;
206 VariableFormat::VariableFormat (libdcp::Size dcp, string id, string n, string d)
207 : Format (dcp, id, n, d)
213 VariableFormat::ratio (shared_ptr<const Film> f) const
216 libdcp::Size const c;// = f->cropped_size (f->video_size ());
217 return float (c.width) / c.height;
220 /** @return A name to be presented to the user */
222 VariableFormat::name () const