2 Copyright (C) 2012-2015 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.
21 * @brief Miscellaneous types.
24 #ifndef LIBDCP_TYPES_H
25 #define LIBDCP_TYPES_H
27 #include <boost/shared_ptr.hpp>
28 #include <boost/function.hpp>
35 * @brief The integer, two-dimensional size of something.
49 float ratio () const {
50 return float (width) / height;
57 /** Identifier for a sound channel */
61 CENTRE = 2, ///< centre
62 LFE = 3, ///< low-frequency effects (sub)
63 LS = 4, ///< left surround
64 RS = 5, ///< right surround
83 PUBLIC_SERVICE_ANNOUNCEMENT,
94 extern std::string effect_to_string (Effect e);
95 extern Effect string_to_effect (std::string s);
104 extern std::string valign_to_string (VAlign a);
105 extern VAlign string_to_valign (std::string s);
114 * @brief A fraction (i.e. a thing with an integer numerator and an integer denominator).
119 /** Construct a fraction of 0/0 */
120 Fraction () : numerator (0), denominator (0) {}
121 Fraction (std::string s);
122 /** Construct a fraction with a specified numerator and denominator.
123 * @param n Numerator.
124 * @param d Denominator.
126 Fraction (int n, int d) : numerator (n), denominator (d) {}
128 float as_float () const {
129 return float (numerator) / denominator;
136 extern bool operator== (Fraction const & a, Fraction const & b);
137 extern bool operator!= (Fraction const & a, Fraction const & b);
139 /** @struct EqualityOptions
140 * @brief A class to describe what "equality" means for a particular test.
142 * When comparing things, we want to be able to ignore some differences;
143 * this class expresses those differences.
145 struct EqualityOptions
147 /** Construct an EqualityOptions where nothing at all can differ */
149 : max_mean_pixel_error (0)
150 , max_std_dev_pixel_error (0)
151 , max_audio_sample_error (0)
152 , cpl_annotation_texts_can_differ (false)
153 , mxf_filenames_can_differ (false)
154 , reel_annotation_texts_can_differ (false)
155 , reel_hashes_can_differ (false)
158 /** The maximum allowable mean difference in pixel value between two images */
159 double max_mean_pixel_error;
160 /** The maximum standard deviation of the differences in pixel value between two images */
161 double max_std_dev_pixel_error;
162 /** The maximum difference in audio sample value between two soundtracks */
163 int max_audio_sample_error;
164 /** true if the <AnnotationText> nodes of CPLs are allowed to differ */
165 bool cpl_annotation_texts_can_differ;
166 /** true if MXF file leafnames are allowed to differ */
167 bool mxf_filenames_can_differ;
168 /** true if the <AnnotationText> nodes of Reels are allowed to differ */
169 bool reel_annotation_texts_can_differ;
170 /** true if <Hash>es in Reels can differ */
171 bool reel_hashes_can_differ;
174 /* I've been unable to make mingw happy with ERROR as a symbol, so
175 I'm using a DCP_ prefix here.
189 MODIFIED_TRANSITIONAL_1,
195 * @brief An RGB colour.
201 Colour (int r_, int g_, int b_);
202 Colour (std::string argb_hex);
204 int r; ///< red component, from 0 to 255
205 int g; ///< green component, from 0 to 255
206 int b; ///< blue component, from 0 to 255
208 std::string to_argb_string () const;
211 extern bool operator== (Colour const & a, Colour const & b);
212 extern bool operator!= (Colour const & a, Colour const & b);
213 extern std::ostream & operator<< (std::ostream & s, Colour const & c);
215 typedef boost::function<void (NoteType, std::string)> NoteHandler;
217 /** Maximum absolute difference between dcp::SubtitleString::aspect_adjust values that
218 * are considered equal.
220 #define ASPECT_ADJUST_EPSILON (1e-3)