2 Copyright (C) 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.
20 /** @file src/stl_binary_writer.cc
21 * @brief Writer for STL binary files.
24 #include "stl_binary_writer.h"
28 #include "compose.hpp"
29 #include <boost/locale.hpp>
44 using boost::locale::conv::utf_to_utf;
47 /** Arbitrary number which to divide the screen into rows; e.g.
48 * 64 here would mean that there are 64 addressable vertical positions
49 * on the screen, each 1/64th of the screen height tall.
51 * The magic 23 makes our output agree more closely with
52 * AnnotationEdit, which makes life easier when testing.
54 static int const ROWS = 23;
57 put_string (char* p, string s)
59 memcpy (p, s.c_str (), s.length ());
63 put_string (char* p, unsigned int n, string s)
65 assert (s.length() <= n);
67 memcpy (p, s.c_str (), s.length ());
68 memset (p + s.length(), ' ', n - s.length ());
72 put_int_as_string (char* p, int v, unsigned int n)
75 /* Be careful to ensure we get no thousands separators */
76 s.imbue (std::locale::classic ());
77 s << setw (n) << setfill ('0');
79 assert (s.str().length() == n);
80 put_string (p, s.str ());
84 put_int_as_int (char* p, int v, unsigned int n)
86 for (unsigned int i = 0; i < n; ++i) {
87 *p++ = (v & ((1 << ((i + 1) * 8)) - 1)) >> (i * 8);
91 /** @param language ISO 3-character country code for the language of the subtitles */
93 sub::write_stl_binary (
94 list<Subtitle> subtitles,
95 float frames_per_second,
97 string original_programme_title,
98 string original_episode_title,
99 string translated_programme_title,
100 string translated_episode_title,
101 string translator_name,
102 string translator_contact_details,
103 string creation_date,
104 string revision_date,
106 string country_of_origin,
109 string editor_contact_details,
110 boost::filesystem::path file_name
113 assert (original_programme_title.size() <= 32);
114 assert (original_episode_title.size() <= 32);
115 assert (translated_programme_title.size() <= 32);
116 assert (translated_episode_title.size() <= 32);
117 assert (translator_name.size() <= 32);
118 assert (translator_contact_details.size() <= 32);
119 assert (creation_date.size() == 6);
120 assert (revision_date.size() == 6);
121 assert (revision_number <= 99);
122 assert (country_of_origin.size() == 3);
123 assert (publisher.size() <= 32);
124 assert (editor_name.size() <= 32);
125 assert (editor_contact_details.size() <= 32);
127 char* buffer = new char[1024];
128 memset (buffer, 0, 1024);
129 ofstream output (file_name.string().c_str ());
130 STLBinaryTables tables;
132 /* Find the longest subtitle in characters and the number of lines */
137 for (list<Subtitle>::const_iterator i = subtitles.begin(); i != subtitles.end(); ++i) {
138 for (list<Line>::const_iterator j = i->lines.begin(); j != i->lines.end(); ++j) {
140 for (list<Block>::const_iterator k = j->blocks.begin(); k != j->blocks.end(); ++k) {
141 t += k->text.size ();
143 longest = max (longest, t);
149 put_string (buffer + 0, "850");
150 /* Disk format code */
151 put_string (buffer + 3, stl_frame_rate_to_dfc (frames_per_second));
152 /* Display standard code: open subtitling */
153 put_string (buffer + 11, "0");
154 /* Character code table: Latin (ISO 6937) */
155 put_string (buffer + 12, "00");
156 put_string (buffer + 14, tables.language_enum_to_file (language));
157 put_string (buffer + 16, 32, original_programme_title);
158 put_string (buffer + 48, 32, original_episode_title);
159 put_string (buffer + 80, 32, translated_programme_title);
160 put_string (buffer + 112, 32, translated_episode_title);
161 put_string (buffer + 144, 32, translator_name);
162 put_string (buffer + 176, 32, translator_contact_details);
163 /* Subtitle list reference code */
164 put_string (buffer + 208, "0000000000000000");
165 put_string (buffer + 224, creation_date);
166 put_string (buffer + 230, revision_date);
167 put_int_as_string (buffer + 236, revision_number, 2);
169 put_int_as_string (buffer + 238, lines, 5);
170 /* Total number of subtitles */
171 put_int_as_string (buffer + 243, lines, 5);
172 /* Total number of subtitle groups */
173 put_string (buffer + 248, "001");
174 /* Maximum number of displayable characters in any text row */
175 put_int_as_string (buffer + 251, longest, 2);
176 /* Maximum number of displayable rows */
177 put_int_as_string (buffer + 253, ROWS, 2);
178 /* Time code status */
179 put_string (buffer + 255, "1");
180 /* Start-of-programme time code */
181 put_string (buffer + 256, "00000000");
182 /* First-in-cue time code */
183 put_string (buffer + 264, "00000000");
184 /* Total number of disks */
185 put_string (buffer + 272, "1");
186 /* Disk sequence number */
187 put_string (buffer + 273, "1");
188 put_string (buffer + 274, 3, country_of_origin);
189 put_string (buffer + 277, 32, publisher);
190 put_string (buffer + 309, 32, editor_name);
191 put_string (buffer + 341, 32, editor_contact_details);
193 output.write (buffer, 1024);
195 for (list<Subtitle>::const_iterator i = subtitles.begin(); i != subtitles.end(); ++i) {
197 for (list<Line>::const_iterator j = i->lines.begin(); j != i->lines.end(); ++j) {
199 memset (buffer, 0, 1024);
201 /* Subtitle group number */
202 put_int_as_int (buffer + 0, 1, 1);
203 /* Subtitle number */
204 put_int_as_int (buffer + 1, N, 2);
205 /* Extension block number. Use 0xff here to indicate that it is the last TTI
206 block in this subtitle "set", as we only ever use one.
208 put_int_as_int (buffer + 3, 255, 1);
209 /* Cumulative status */
210 put_int_as_int (buffer + 4, tables.cumulative_status_enum_to_file (CUMULATIVE_STATUS_NOT_CUMULATIVE), 1);
212 put_int_as_int (buffer + 5, i->from.frame(frames_per_second).hours (), 1);
213 put_int_as_int (buffer + 6, i->from.frame(frames_per_second).minutes (), 1);
214 put_int_as_int (buffer + 7, i->from.frame(frames_per_second).seconds (), 1);
215 put_int_as_int (buffer + 8, i->from.frame(frames_per_second).frames (), 1);
217 put_int_as_int (buffer + 9, i->to.frame(frames_per_second).hours (), 1);
218 put_int_as_int (buffer + 10, i->to.frame(frames_per_second).minutes (), 1);
219 put_int_as_int (buffer + 11, i->to.frame(frames_per_second).seconds (), 1);
220 put_int_as_int (buffer + 12, i->to.frame(frames_per_second).frames (), 1);
221 /* Vertical position */
223 if (j->vertical_position.proportional) {
224 switch (j->vertical_position.reference.get_value_or (TOP_OF_SCREEN)) {
226 vp = rint (j->vertical_position.proportional.get() * ROWS);
228 case CENTRE_OF_SCREEN:
229 vp = rint (j->vertical_position.proportional.get() * ROWS + (ROWS / 2.0));
231 case BOTTOM_OF_SCREEN:
232 vp = rint (ROWS - (j->vertical_position.proportional.get() * ROWS));
237 } else if (j->vertical_position.line) {
238 float const prop = float (j->vertical_position.line.get()) / j->vertical_position.lines.get ();
239 switch (j->vertical_position.reference.get_value_or (TOP_OF_SCREEN)) {
243 case CENTRE_OF_SCREEN:
244 vp = (prop + 0.5) * ROWS;
246 case BOTTOM_OF_SCREEN:
247 vp = (1 - prop) * ROWS;
253 put_int_as_int (buffer + 13, vp, 1);
254 /* Justification code */
256 put_int_as_int (buffer + 14, tables.justification_enum_to_file (JUSTIFICATION_NONE), 1);
258 put_int_as_int (buffer + 15, tables.comment_enum_to_file (COMMENT_NO), 1);
263 bool underline = false;
265 for (list<Block>::const_iterator k = j->blocks.begin(); k != j->blocks.end(); ++k) {
266 if (k->underline && !underline) {
269 } else if (underline && !k->underline) {
273 if (k->italic && !italic) {
276 } else if (italic && !k->italic) {
281 text += utf16_to_iso6937 (utf_to_utf<wchar_t> (k->text));
286 if (text.length() > 111) {
287 text = text.substr (111);
290 while (text.length() < 112) {
294 put_string (buffer + 16, text);
295 output.write (buffer, 128);