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 #include <boost/lexical_cast.hpp>
21 #include <boost/algorithm/string.hpp>
22 #include <boost/locale.hpp>
23 #include "stl_binary_reader.h"
24 #include "exceptions.h"
26 #include "compose.hpp"
33 using boost::lexical_cast;
34 using boost::algorithm::replace_all;
35 using boost::is_any_of;
36 using boost::locale::conv::utf_to_utf;
39 STLBinaryReader::STLBinaryReader (istream& in)
40 : _buffer (new unsigned char[1024])
42 in.read ((char *) _buffer, 1024);
43 if (in.gcount() != 1024) {
44 throw STLError ("Could not read GSI block from binary STL file");
47 code_page_number = atoi (get_string (0, 3).c_str ());
49 string const dfc = get_string (3, 8);
50 if (dfc == "STL24.01") {
52 } else if (dfc == "STL25.01") {
54 } else if (dfc == "STL30.01") {
57 throw STLError (String::compose ("Unknown disk format code %1 in binary STL file", dfc));
60 display_standard = _tables.display_standard_file_to_enum (get_string (11, 1));
61 language_group = _tables.language_group_file_to_enum (get_string (12, 2));
62 language = _tables.language_file_to_enum (get_string (14, 2));
63 original_programme_title = get_string (16, 32);
64 original_episode_title = get_string (48, 32);
65 translated_programme_title = get_string (80, 32);
66 translated_episode_title = get_string (112, 32);
67 translator_name = get_string (144, 32);
68 translator_contact_details = get_string (176, 32);
69 subtitle_list_reference_code = get_string (208, 32);
70 creation_date = get_string (224, 6);
71 revision_date = get_string (230, 6);
72 revision_number = get_string (236, 2);
74 tti_blocks = atoi (get_string (238, 5).c_str ());
75 number_of_subtitles = atoi (get_string (243, 5).c_str ());
76 subtitle_groups = atoi (get_string (248, 3).c_str ());
77 maximum_characters = atoi (get_string (251, 2).c_str ());
78 maximum_rows = atoi (get_string (253, 2).c_str ());
79 timecode_status = _tables.timecode_status_file_to_enum (get_string (255, 1));
80 start_of_programme = get_string (256, 8);
81 first_in_cue = get_string (256, 8);
82 disks = atoi (get_string (272, 1).c_str ());
83 disk_sequence_number = atoi (get_string (273, 1).c_str ());
84 country_of_origin = get_string (274, 3);
85 publisher = get_string (277, 32);
86 editor_name = get_string (309, 32);
87 editor_contact_details = get_string (341, 32);
89 for (int i = 0; i < tti_blocks; ++i) {
91 in.read ((char *) _buffer, 128);
92 if (in.gcount() != 128) {
93 throw STLError ("Could not read TTI block from binary STL file");
96 if (_tables.comment_file_to_enum (get_int (15, 1)) == COMMENT_YES) {
100 string const whole = get_string (16, 112);
102 /* Split the text up into lines (8Ah is a new line) */
103 vector<string> lines;
104 split (lines, whole, is_any_of ("\x8a"));
106 for (size_t i = 0; i < lines.size(); ++i) {
108 sub.from.set_frame (get_timecode (5));
109 sub.to.set_frame (get_timecode (9));
110 sub.vertical_position.line = get_int (13, 1) + i;
112 /* XXX: justification, effects */
114 /* 8Fh is unused space, so trim the string to the first instance of that */
115 size_t unused = lines[i].find_first_of ('\x8f');
116 if (unused != string::npos) {
117 lines[i] = lines[i].substr (0, unused);
120 sub.text = utf_to_utf<char> (iso6937_to_utf16 (lines[i].c_str()));
121 _subs.push_back (sub);
126 STLBinaryReader::~STLBinaryReader ()
132 STLBinaryReader::get_string (int offset, int length) const
135 for (int i = 0; i < length; ++i) {
136 s += _buffer[offset + i];
143 STLBinaryReader::get_int (int offset, int length) const
146 for (int i = 0; i < length; ++i) {
147 v |= _buffer[offset + i] << (8 * i);
154 STLBinaryReader::get_timecode (int offset) const
156 return FrameTime (_buffer[offset], _buffer[offset + 1], _buffer[offset + 2], _buffer[offset + 3]);
160 STLBinaryReader::metadata () const
162 map<string, string> m;
164 m["Code page number"] = lexical_cast<string> (code_page_number);
165 m["Frame rate"] = lexical_cast<string> (frame_rate);
166 m["Display standard"] = _tables.display_standard_enum_to_description (display_standard);
167 m["Language group"] = _tables.language_group_enum_to_description (language_group);
168 m["Language"] = _tables.language_enum_to_description (language);
169 m["Original programme title"] = original_programme_title;
170 m["Original episode title"] = original_episode_title;
171 m["Translated programme title"] = translated_programme_title;
172 m["Translated episode title"] = translated_episode_title;
173 m["Translator name"] = translator_name;
174 m["Translator contact details"] = translator_contact_details;
175 m["Subtitle list reference code"] = subtitle_list_reference_code;
176 m["Creation date"] = creation_date;
177 m["Revision date"] = revision_date;
178 m["Revision number"] = revision_number;
179 m["TTI blocks"] = lexical_cast<string> (tti_blocks);
180 m["Number of subtitles"] = lexical_cast<string> (number_of_subtitles);
181 m["Subtitle groups"] = lexical_cast<string> (subtitle_groups);
182 m["Maximum characters"] = lexical_cast<string> (maximum_characters);
183 m["Maximum rows"] = lexical_cast<string> (maximum_rows);
184 m["Timecode status"] = _tables.timecode_status_enum_to_description (timecode_status);
185 m["Start of programme"] = start_of_programme;
186 m["First in cue"] = first_in_cue;
187 m["Disks"] = lexical_cast<string> (disks);
188 m["Disk sequence number"] = lexical_cast<string> (disk_sequence_number);
189 m["Country of origin"] = country_of_origin;
190 m["Publisher"] = publisher;
191 m["Editor name"] = editor_name;
192 m["Editor contact details"] = editor_contact_details;