online-recognizer-impl.h
2.2 KB
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
// sherpa-onnx/csrc/online-recognizer-impl.h
//
// Copyright (c) 2023 Xiaomi Corporation
#ifndef SHERPA_ONNX_CSRC_ONLINE_RECOGNIZER_IMPL_H_
#define SHERPA_ONNX_CSRC_ONLINE_RECOGNIZER_IMPL_H_
#include <memory>
#include <string>
#include <vector>
#include "kaldifst/csrc/text-normalizer.h"
#include "sherpa-onnx/csrc/homophone-replacer.h"
#include "sherpa-onnx/csrc/macros.h"
#include "sherpa-onnx/csrc/online-recognizer.h"
#include "sherpa-onnx/csrc/online-stream.h"
namespace sherpa_onnx {
class OnlineRecognizerImpl {
public:
explicit OnlineRecognizerImpl(const OnlineRecognizerConfig &config);
static std::unique_ptr<OnlineRecognizerImpl> Create(
const OnlineRecognizerConfig &config);
template <typename Manager>
OnlineRecognizerImpl(Manager *mgr, const OnlineRecognizerConfig &config);
template <typename Manager>
static std::unique_ptr<OnlineRecognizerImpl> Create(
Manager *mgr, const OnlineRecognizerConfig &config);
virtual ~OnlineRecognizerImpl() = default;
virtual std::unique_ptr<OnlineStream> CreateStream() const = 0;
virtual std::unique_ptr<OnlineStream> CreateStream(
const std::string &hotwords) const {
SHERPA_ONNX_LOGE("Only transducer models support contextual biasing.");
exit(-1);
}
virtual bool IsReady(OnlineStream *s) const = 0;
virtual void WarmpUpRecognizer(int32_t warmup, int32_t mbs) const {
// ToDo extending to other models
SHERPA_ONNX_LOGE("Only zipformer2 model supports Warm up for now.");
exit(-1);
}
virtual void DecodeStreams(OnlineStream **ss, int32_t n) const = 0;
virtual OnlineRecognizerResult GetResult(OnlineStream *s) const = 0;
virtual bool IsEndpoint(OnlineStream *s) const = 0;
virtual void Reset(OnlineStream *s) const = 0;
std::string ApplyInverseTextNormalization(std::string text) const;
std::string ApplyHomophoneReplacer(std::string text) const;
private:
OnlineRecognizerConfig config_;
// for inverse text normalization. Used only if
// config.rule_fsts is not empty or
// config.rule_fars is not empty
std::vector<std::unique_ptr<kaldifst::TextNormalizer>> itn_list_;
std::unique_ptr<HomophoneReplacer> hr_;
};
} // namespace sherpa_onnx
#endif // SHERPA_ONNX_CSRC_ONLINE_RECOGNIZER_IMPL_H_