/
psRecognizer.h
203 lines (173 loc) · 5.62 KB
/
psRecognizer.h
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
#ifndef _PSRECOGNIZER_H_
#define _PSRECOGNIZER_H_
#include <stdint.h>
#include <string>
#include <vector>
#include <map>
#include <set>
#include <sstream>
#include <iostream>
#include <emscripten/bind.h>
#include "pocketsphinx.h"
namespace pocketsphinxjs {
enum ReturnType {
SUCCESS,
BAD_STATE,
BAD_ARGUMENT,
RUNTIME_ERROR
};
struct Transition {
int from;
int to;
int logp;
std::string word;
};
struct Grammar {
int start;
int end;
int numStates;
std::vector<Transition> transitions;
};
typedef std::map<std::string, std::string> Dictionary;
struct Word {
std::string word;
std::string pronunciation;
};
struct ConfigItem {
std::string key;
std::string value;
};
struct SegItem {
std::string word;
int start;
int end;
int ascr;
int lscr;
};
typedef std::vector<std::string> StringsListType;
typedef std::set<std::string> StringsSetType;
typedef std::vector<ConfigItem> Config;
typedef std::vector<int> Integers;
typedef std::vector<SegItem> Segmentation;
class Recognizer {
public:
Recognizer();
Recognizer(const Config&);
ReturnType reInit(const Config&);
ReturnType addWords(const std::vector<Word>&);
ReturnType addGrammar(Integers&, const Grammar&);
ReturnType addKeyword(Integers&, const std::string&);
// Kept for backward compatibility, use switchSearch
// instead
ReturnType switchGrammar(int);
ReturnType switchSearch(int);
std::string getHyp();
ReturnType getHypseg(Segmentation&);
ReturnType start();
ReturnType stop();
ReturnType process(const std::vector<int16_t>&);
std::string lookupWord(const std::string&);
~Recognizer();
private:
ReturnType init(const Config&);
bool isValidParameter(const std::string&, const std::string&);
void cleanup();
StringsListType grammar_names;
bool is_fsg;
bool is_recording;
std::string current_hyp;
int32_t grammar_index;
fsg_model_t * current_grammar;
ps_decoder_t * decoder;
logmath_t * logmath;
StringsSetType acoustic_models;
std::string default_acoustic_model;
StringsSetType language_models;
StringsSetType dictionaries;
std::string default_language_model;
std::string default_dictionary;
};
} // namespace pocketsphinxjs
/**********************************************
*
* Usage:
*
* var recognizer = new Module.Recognizer();
* var words = new Module.VectorWords();
* words.push_back(["HELLO", "HH AH L OW"]);
* words.push_back(["WORLD", "W ER L D"]);
* recognizer.addWords(words);
* words.delete()
* var transitions = new Module.VectorTransitions();
* transitions.push_back({from: 0, to: 1, word: "HELLO"});
* transitions.push_back({from: 1, to: 2, word: "WORLD"});
* var ids = new Module.Integers();
* recognizer.addGrammar(ids, {start: 1, end: 2, numStates: 3, transitions: transitions});
* transitions.delete();
* var id = ids.get(0);
* ids.delete();
* var length = 100;
* recognizer.start();
* var buffer = new Module.AudioBuffer();
* for (var i = 0 ; i < length ; i++)
* buffer.push_back(i*100);
* recognizer.process(buffer);
* recognizer.process(buffer);
* recognizer.process(buffer);
* buffer.delete();
* recognizer.stop();
* recognizer.delete();
*
*********************************************/
namespace ps = pocketsphinxjs;
EMSCRIPTEN_BINDINGS(recognizer) {
emscripten::enum_<ps::ReturnType>("ReturnType")
.value("SUCCESS", ps::SUCCESS)
.value("BAD_STATE", ps::BAD_STATE)
.value("BAD_ARGUMENT", ps::BAD_ARGUMENT)
.value("RUNTIME_ERROR", ps::RUNTIME_ERROR);
emscripten::value_array<ps::Word>("Word")
.element(&ps::Word::word)
.element(&ps::Word::pronunciation);
emscripten::value_array<ps::ConfigItem>("ConfigItem")
.element(&ps::ConfigItem::key)
.element(&ps::ConfigItem::value);
emscripten::value_object<ps::SegItem>("SegItem")
.field("word", &ps::SegItem::word)
.field("start", &ps::SegItem::start)
.field("end", &ps::SegItem::end)
.field("ascr", &ps::SegItem::ascr)
.field("lscr", &ps::SegItem::lscr);
emscripten::value_object<ps::Transition>("Transition")
.field("from", &ps::Transition::from)
.field("to", &ps::Transition::to)
.field("logp", &ps::Transition::logp)
.field("word", &ps::Transition::word);
emscripten::register_vector<int16_t>("AudioBuffer");
emscripten::register_vector<ps::Transition>("VectorTransitions");
emscripten::register_vector<ps::Word>("VectorWords");
emscripten::register_vector<ps::ConfigItem>("Config");
emscripten::register_vector<ps::SegItem>("Segmentation");
emscripten::register_vector<int>("Integers");
emscripten::value_object<ps::Grammar>("Grammar")
.field("start", &ps::Grammar::start)
.field("end", &ps::Grammar::end)
.field("numStates", &ps::Grammar::numStates)
.field("transitions", &ps::Grammar::transitions);
emscripten::class_<ps::Recognizer>("Recognizer")
.constructor<>()
.constructor<const ps::Config&>()
.function("reInit", &ps::Recognizer::reInit)
.function("addWords", &ps::Recognizer::addWords)
.function("addGrammar", &ps::Recognizer::addGrammar)
.function("addKeyword", &ps::Recognizer::addKeyword)
.function("switchGrammar", &ps::Recognizer::switchGrammar)
.function("switchSearch", &ps::Recognizer::switchSearch)
.function("getHyp", &ps::Recognizer::getHyp)
.function("getHypseg", &ps::Recognizer::getHypseg)
.function("start", &ps::Recognizer::start)
.function("stop", &ps::Recognizer::stop)
.function("lookupWord", &ps::Recognizer::lookupWord)
.function("process", &ps::Recognizer::process);
}
#endif /* _PSRECOGNIZER_H_ */