2 Copyright (C) 2012-2019 Carl Hetherington <cth@carlh.net>
4 This file is part of libdcp.
6 libdcp is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 libdcp is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with libdcp. If not, see <http://www.gnu.org/licenses/>.
19 In addition, as a special exception, the copyright holders give
20 permission to link the code of portions of this program with the
21 OpenSSL library under certain conditions as described in each
22 individual source file, and distribute linked combinations
25 You must obey the GNU General Public License in all respects
26 for all of the code used other than OpenSSL. If you modify
27 file(s) with this exception, you may extend this exception to your
28 version of the file(s), but you are not obligated to do so. If you
29 do not wish to do so, delete this exception statement from your
30 version. If you delete this exception statement from all source
31 files in the program, then also delete it here.
35 * @brief Miscellaneous types.
38 #ifndef LIBDCP_TYPES_H
39 #define LIBDCP_TYPES_H
41 #include <libcxml/cxml.h>
42 #include <boost/shared_ptr.hpp>
43 #include <boost/function.hpp>
54 * @brief The integer, two-dimensional size of something.
68 float ratio () const {
69 return float (width) / height;
76 extern bool operator== (Size const & a, Size const & b);
77 extern bool operator!= (Size const & a, Size const & b);
78 extern std::ostream& operator<< (std::ostream& s, Size const & a);
80 /** Identifier for a sound channel */
84 CENTRE = 2, ///< centre
85 LFE = 3, ///< low-frequency effects (sub)
86 LS = 4, ///< left surround
87 RS = 5, ///< right surround
111 PUBLIC_SERVICE_ANNOUNCEMENT,
117 extern std::string content_kind_to_string (ContentKind kind);
118 extern ContentKind content_kind_from_string (std::string kind);
127 extern std::string effect_to_string (Effect e);
128 extern Effect string_to_effect (std::string s);
132 HALIGN_LEFT, ///< horizontal position is distance from left of screen to left of subtitle
133 HALIGN_CENTER, ///< horizontal position is distance from centre of screen to centre of subtitle
134 HALIGN_RIGHT, ///< horizontal position is distance from right of screen to right of subtitle
137 extern std::string halign_to_string (HAlign a);
138 extern HAlign string_to_halign (std::string s);
142 VALIGN_TOP, ///< vertical position is distance from top of screen to top of subtitle
143 VALIGN_CENTER, ///< vertical position is distance from centre of screen to centre of subtitle
144 VALIGN_BOTTOM ///< vertical position is distance from bottom of screen to bottom of subtitle
147 extern std::string valign_to_string (VAlign a);
148 extern VAlign string_to_valign (std::string s);
150 /** Direction for subtitle test */
153 DIRECTION_LTR, ///< left-to-right
154 DIRECTION_RTL, ///< right-to-left
155 DIRECTION_TTB, ///< top-to-bottom
156 DIRECTION_BTT ///< bottom-to-top
159 extern std::string direction_to_string (Direction a);
160 extern Direction string_to_direction (std::string s);
169 * @brief A fraction (i.e. a thing with an integer numerator and an integer denominator).
174 /** Construct a fraction of 0/0 */
175 Fraction () : numerator (0), denominator (0) {}
176 explicit Fraction (std::string s);
177 /** Construct a fraction with a specified numerator and denominator.
178 * @param n Numerator.
179 * @param d Denominator.
181 Fraction (int n, int d) : numerator (n), denominator (d) {}
183 float as_float () const {
184 return float (numerator) / denominator;
187 std::string as_string () const;
193 extern bool operator== (Fraction const & a, Fraction const & b);
194 extern bool operator!= (Fraction const & a, Fraction const & b);
195 extern std::ostream& operator<< (std::ostream& s, Fraction const & f);
197 /** @struct EqualityOptions
198 * @brief A class to describe what "equality" means for a particular test.
200 * When comparing things, we want to be able to ignore some differences;
201 * this class expresses those differences.
203 struct EqualityOptions
205 /** Construct an EqualityOptions where nothing at all can differ */
207 : max_mean_pixel_error (0)
208 , max_std_dev_pixel_error (0)
209 , max_audio_sample_error (0)
210 , cpl_annotation_texts_can_differ (false)
211 , reel_annotation_texts_can_differ (false)
212 , reel_hashes_can_differ (false)
213 , issue_dates_can_differ (false)
214 , load_font_nodes_can_differ (false)
218 /** The maximum allowable mean difference in pixel value between two images */
219 double max_mean_pixel_error;
220 /** The maximum standard deviation of the differences in pixel value between two images */
221 double max_std_dev_pixel_error;
222 /** The maximum difference in audio sample value between two soundtracks */
223 int max_audio_sample_error;
224 /** true if the <AnnotationText> nodes of CPLs are allowed to differ */
225 bool cpl_annotation_texts_can_differ;
226 /** true if the <AnnotationText> nodes of Reels are allowed to differ */
227 bool reel_annotation_texts_can_differ;
228 /** true if <Hash>es in Reels can differ */
229 bool reel_hashes_can_differ;
230 /** true if IssueDate nodes can differ */
231 bool issue_dates_can_differ;
232 bool load_font_nodes_can_differ;
236 /* I've been unable to make mingw happy with ERROR as a symbol, so
237 I'm using a DCP_ prefix here.
251 MODIFIED_TRANSITIONAL_1,
252 MULTIPLE_MODIFIED_TRANSITIONAL_1,
255 /** For testing: adds no AuthorizedDeviceInfo tag */
256 MODIFIED_TRANSITIONAL_TEST
260 * @brief An RGB colour.
266 Colour (int r_, int g_, int b_);
267 explicit Colour (std::string argb_hex);
269 int r; ///< red component, from 0 to 255
270 int g; ///< green component, from 0 to 255
271 int b; ///< blue component, from 0 to 255
273 std::string to_rgb_string () const;
274 std::string to_argb_string () const;
277 extern bool operator== (Colour const & a, Colour const & b);
278 extern bool operator!= (Colour const & a, Colour const & b);
279 extern std::ostream & operator<< (std::ostream & s, Colour const & c);
281 typedef boost::function<void (NoteType, std::string)> NoteHandler;
283 /** Maximum absolute difference between dcp::SubtitleString::aspect_adjust values that
284 * are considered equal.
286 const float ASPECT_ADJUST_EPSILON = 1e-3;
288 /** Maximum absolute difference between dcp::SubtitleString alignment values that
289 * are considered equal.
291 const float ALIGN_EPSILON = 1e-3;
294 FFOC, ///< first frame of composition
295 LFOC, ///< last frame of composition
296 FFTC, ///< first frame of title credits
297 LFTC, ///< last frame of title credits
298 FFOI, ///< first frame of intermission
299 LFOI, ///< last frame of intermission
300 FFEC, ///< first frame of end credits
301 LFEC, ///< last frame of end credits
302 FFMC, ///< first frame of moving credits
303 LFMC ///< last frame of moving credits
306 std::string marker_to_string (Marker);
307 Marker marker_from_string (std::string);
312 Rating (std::string agency_, std::string label_)
317 explicit Rating (cxml::ConstNodePtr node);
319 void as_xml (xmlpp::Element* parent) const;
321 /** URI of the agency issuing the rating */
323 /** Rating (e.g. PG, PG-13, 12A etc) */
327 extern bool operator== (Rating const & a, Rating const & b);
328 extern std::ostream& operator<< (std::ostream& s, Rating const & r);
336 ContentVersion (std::string id_, std::string label_text_)
338 , label_text (label_text_)
341 void as_xml (xmlpp::Element* parent) const;
344 std::string label_text;