2 Copyright (C) 2012-2014 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
65 CHANNEL_7 = 6, ///< channel 7; not sure what this should be called
66 CHANNEL_8 = 7 ///< channel 8; not sure what this should be called
79 PUBLIC_SERVICE_ANNOUNCEMENT,
90 extern std::string effect_to_string (Effect e);
91 extern Effect string_to_effect (std::string s);
100 extern std::string valign_to_string (VAlign a);
101 extern VAlign string_to_valign (std::string s);
110 * @brief A fraction (i.e. a thing with an integer numerator and an integer denominator).
115 /** Construct a fraction of 0/0 */
116 Fraction () : numerator (0), denominator (0) {}
117 Fraction (std::string s);
118 /** Construct a fraction with a specified numerator and denominator.
119 * @param n Numerator.
120 * @param d Denominator.
122 Fraction (int n, int d) : numerator (n), denominator (d) {}
124 float as_float () const {
125 return float (numerator) / denominator;
132 extern bool operator== (Fraction const & a, Fraction const & b);
133 extern bool operator!= (Fraction const & a, Fraction const & b);
135 /** @struct EqualityOptions
136 * @brief A class to describe what "equality" means for a particular test.
138 * When comparing things, we want to be able to ignore some differences;
139 * this class expresses those differences.
141 struct EqualityOptions
143 /** Construct an EqualityOptions where nothing at all can differ */
145 : max_mean_pixel_error (0)
146 , max_std_dev_pixel_error (0)
147 , max_audio_sample_error (0)
148 , cpl_annotation_texts_can_differ (false)
149 , mxf_filenames_can_differ (false)
150 , reel_hashes_can_differ (false)
153 /** The maximum allowable mean difference in pixel value between two images */
154 double max_mean_pixel_error;
155 /** The maximum standard deviation of the differences in pixel value between two images */
156 double max_std_dev_pixel_error;
157 /** The maximum difference in audio sample value between two soundtracks */
158 int max_audio_sample_error;
159 /** true if the <AnnotationText> nodes of CPLs are allowed to differ */
160 bool cpl_annotation_texts_can_differ;
161 /** true if MXF file leafnames are allowed to differ */
162 bool mxf_filenames_can_differ;
163 /** true if <Hash>es in Reels can differ */
164 bool reel_hashes_can_differ;
167 /* I've been unable to make mingw happy with ERROR as a symbol, so
168 I'm using a DCP_ prefix here.
182 MODIFIED_TRANSITIONAL_1,
188 * @brief An RGB colour.
194 Colour (int r_, int g_, int b_);
195 Colour (std::string argb_hex);
197 int r; ///< red component, from 0 to 255
198 int g; ///< green component, from 0 to 255
199 int b; ///< blue component, from 0 to 255
201 std::string to_argb_string () const;
204 extern bool operator== (Colour const & a, Colour const & b);
205 extern bool operator!= (Colour const & a, Colour const & b);
206 extern std::ostream & operator<< (std::ostream & s, Colour const & c);
208 typedef boost::function<void (NoteType, std::string)> NoteHandler;