1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/*
Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
This file is part of libdcp.
libdcp is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
libdcp is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with libdcp. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
*/
/** @file src/text_asset.h
* @brief TextAsset class
*/
#ifndef LIBDCP_TEXT_ASSET_H
#define LIBDCP_TEXT_ASSET_H
#include "array_data.h"
#include "asset.h"
#include "dcp_time.h"
#include "subtitle_standard.h"
#include "text_string.h"
#include <libcxml/cxml.h>
#include <boost/shared_array.hpp>
#include <map>
#include <string>
#include <utility>
#include <vector>
namespace xmlpp {
class Document;
class Element;
}
struct interop_dcp_font_test;
struct smpte_dcp_font_test;
struct pull_fonts_test1;
struct pull_fonts_test2;
struct pull_fonts_test3;
namespace dcp {
class FontNode;
class LoadFontNode;
class ReelAsset;
class SubtitleNode;
class TextImage;
class TextNode;
class TextString;
namespace order {
class Part;
struct Context;
}
/** @class TextAsset
* @brief A parent for classes representing a file containing subtitles or captions
*
* This class holds a list of Text objects which it can extract
* from the appropriate part of either an Interop or SMPTE XML file.
* Its subclasses InteropTextAsset and SMPTETextAsset handle the
* differences between the two types.
*/
class TextAsset : public Asset
{
public:
TextAsset();
explicit TextAsset(boost::filesystem::path file);
bool equals (
std::shared_ptr<const Asset>,
EqualityOptions const&,
NoteHandler note
) const override;
std::vector<std::shared_ptr<const Text>> texts_during(Time from, Time to, bool starting) const;
std::vector<std::shared_ptr<const Text>> texts() const;
virtual void add(std::shared_ptr<Text>);
virtual void add_font (std::string id, dcp::ArrayData data) = 0;
void ensure_font(std::string id, dcp::ArrayData data);
std::map<std::string, ArrayData> font_data () const;
std::map<std::string, boost::filesystem::path> font_filenames () const;
virtual void write (boost::filesystem::path) const = 0;
virtual std::string xml_as_string () const = 0;
Time latest_text_out() const;
void fix_empty_font_ids ();
virtual std::vector<std::shared_ptr<LoadFontNode>> load_font_nodes () const = 0;
virtual int time_code_rate () const = 0;
/** @return Raw XML loaded from, or written to, an on-disk asset, or boost::none if
* - this object was not created from an existing on-disk asset and has not been written to one, or
* - this asset is encrypted and no key is available.
*/
virtual boost::optional<std::string> raw_xml () const {
return _raw_xml;
}
virtual SubtitleStandard subtitle_standard() const = 0;
static std::string format_xml(xmlpp::Document const& document, boost::optional<std::pair<std::string, std::string>> xml_namespace);
protected:
friend struct ::interop_dcp_font_test;
friend struct ::smpte_dcp_font_test;
struct ParseState {
boost::optional<std::string> font_id;
boost::optional<int64_t> size;
boost::optional<float> aspect_adjust;
boost::optional<bool> italic;
boost::optional<bool> bold;
boost::optional<bool> underline;
boost::optional<Colour> colour;
boost::optional<Effect> effect;
boost::optional<Colour> effect_colour;
boost::optional<float> h_position;
boost::optional<HAlign> h_align;
boost::optional<float> v_position;
boost::optional<VAlign> v_align;
boost::optional<float> z_position;
boost::optional<Direction> direction;
boost::optional<Time> in;
boost::optional<Time> out;
boost::optional<Time> fade_up_time;
boost::optional<Time> fade_down_time;
enum class Type {
TEXT,
IMAGE
};
boost::optional<Type> type;
float space_before = 0;
};
void parse_texts(xmlpp::Element const * node, std::vector<ParseState>& state, boost::optional<int> tcr, Standard standard);
ParseState font_node_state (xmlpp::Element const * node, Standard standard) const;
ParseState text_node_state (xmlpp::Element const * node) const;
ParseState image_node_state (xmlpp::Element const * node) const;
ParseState subtitle_node_state (xmlpp::Element const * node, boost::optional<int> tcr) const;
Time fade_time (xmlpp::Element const * node, std::string name, boost::optional<int> tcr) const;
void position_align (ParseState& ps, xmlpp::Element const * node) const;
void texts_as_xml(xmlpp::Element* root, int time_code_rate, Standard standard) const;
/** All our texts, in no particular order */
std::vector<std::shared_ptr<Text>> _texts;
class Font
{
public:
Font (std::string load_id_, std::string uuid_, boost::filesystem::path file_)
: load_id (load_id_)
, uuid (uuid_)
, data (file_)
, file (file_)
{}
Font (std::string load_id_, std::string uuid_, ArrayData data_)
: load_id (load_id_)
, uuid (uuid_)
, data (data_)
{}
std::string load_id;
std::string uuid;
ArrayData data;
/** .ttf file that this data was last written to, if applicable */
mutable boost::optional<boost::filesystem::path> file;
};
/** TTF font data that we need */
std::vector<Font> _fonts;
/** The raw XML data that we read from or wrote to our asset; useful for validation */
mutable boost::optional<std::string> _raw_xml;
private:
friend struct ::pull_fonts_test1;
friend struct ::pull_fonts_test2;
friend struct ::pull_fonts_test3;
void maybe_add_text(
std::string text,
std::vector<ParseState> const & parse_state,
float space_before,
Standard standard,
std::vector<Ruby> const& rubies
);
static void pull_fonts (std::shared_ptr<order::Part> part);
};
}
#endif
|
