offline-tdnn-ctc-model.cc
4.4 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
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
// sherpa-onnx/csrc/offline-tdnn-ctc-model.cc
//
// Copyright (c) 2023 Xiaomi Corporation
#include "sherpa-onnx/csrc/offline-tdnn-ctc-model.h"
#include <utility>
#if __ANDROID_API__ >= 9
#include "android/asset_manager.h"
#include "android/asset_manager_jni.h"
#endif
#if __OHOS__
#include "rawfile/raw_file_manager.h"
#endif
#include "sherpa-onnx/csrc/file-utils.h"
#include "sherpa-onnx/csrc/macros.h"
#include "sherpa-onnx/csrc/onnx-utils.h"
#include "sherpa-onnx/csrc/session.h"
#include "sherpa-onnx/csrc/text-utils.h"
#include "sherpa-onnx/csrc/transpose.h"
namespace sherpa_onnx {
class OfflineTdnnCtcModel::Impl {
public:
explicit Impl(const OfflineModelConfig &config)
: config_(config),
env_(ORT_LOGGING_LEVEL_ERROR),
sess_opts_(GetSessionOptions(config)),
allocator_{} {
auto buf = ReadFile(config_.tdnn.model);
Init(buf.data(), buf.size());
}
template <typename Manager>
Impl(Manager *mgr, const OfflineModelConfig &config)
: config_(config),
env_(ORT_LOGGING_LEVEL_ERROR),
sess_opts_(GetSessionOptions(config)),
allocator_{} {
auto buf = ReadFile(mgr, config_.tdnn.model);
Init(buf.data(), buf.size());
}
std::vector<Ort::Value> Forward(Ort::Value features) {
auto nnet_out =
sess_->Run({}, input_names_ptr_.data(), &features, 1,
output_names_ptr_.data(), output_names_ptr_.size());
std::vector<int64_t> nnet_out_shape =
nnet_out[0].GetTensorTypeAndShapeInfo().GetShape();
std::vector<int64_t> out_length_vec(nnet_out_shape[0], nnet_out_shape[1]);
std::vector<int64_t> out_length_shape(1, nnet_out_shape[0]);
auto memory_info =
Ort::MemoryInfo::CreateCpu(OrtDeviceAllocator, OrtMemTypeDefault);
Ort::Value nnet_out_length = Ort::Value::CreateTensor(
memory_info, out_length_vec.data(), out_length_vec.size(),
out_length_shape.data(), out_length_shape.size());
std::vector<Ort::Value> ans;
ans.reserve(2);
ans.push_back(std::move(nnet_out[0]));
ans.push_back(Clone(Allocator(), &nnet_out_length));
return ans;
}
int32_t VocabSize() const { return vocab_size_; }
OrtAllocator *Allocator() { return allocator_; }
private:
void Init(void *model_data, size_t model_data_length) {
sess_ = std::make_unique<Ort::Session>(env_, model_data, model_data_length,
sess_opts_);
GetInputNames(sess_.get(), &input_names_, &input_names_ptr_);
GetOutputNames(sess_.get(), &output_names_, &output_names_ptr_);
// get meta data
Ort::ModelMetadata meta_data = sess_->GetModelMetadata();
if (config_.debug) {
std::ostringstream os;
PrintModelMetadata(os, meta_data);
#if __OHOS__
SHERPA_ONNX_LOGE("%{public}s\n", os.str().c_str());
#else
SHERPA_ONNX_LOGE("%s\n", os.str().c_str());
#endif
}
Ort::AllocatorWithDefaultOptions allocator; // used in the macro below
SHERPA_ONNX_READ_META_DATA(vocab_size_, "vocab_size");
}
private:
OfflineModelConfig config_;
Ort::Env env_;
Ort::SessionOptions sess_opts_;
Ort::AllocatorWithDefaultOptions allocator_;
std::unique_ptr<Ort::Session> sess_;
std::vector<std::string> input_names_;
std::vector<const char *> input_names_ptr_;
std::vector<std::string> output_names_;
std::vector<const char *> output_names_ptr_;
int32_t vocab_size_ = 0;
};
OfflineTdnnCtcModel::OfflineTdnnCtcModel(const OfflineModelConfig &config)
: impl_(std::make_unique<Impl>(config)) {}
template <typename Manager>
OfflineTdnnCtcModel::OfflineTdnnCtcModel(Manager *mgr,
const OfflineModelConfig &config)
: impl_(std::make_unique<Impl>(mgr, config)) {}
OfflineTdnnCtcModel::~OfflineTdnnCtcModel() = default;
std::vector<Ort::Value> OfflineTdnnCtcModel::Forward(
Ort::Value features, Ort::Value /*features_length*/) {
return impl_->Forward(std::move(features));
}
int32_t OfflineTdnnCtcModel::VocabSize() const { return impl_->VocabSize(); }
OrtAllocator *OfflineTdnnCtcModel::Allocator() const {
return impl_->Allocator();
}
#if __ANDROID_API__ >= 9
template OfflineTdnnCtcModel::OfflineTdnnCtcModel(
AAssetManager *mgr, const OfflineModelConfig &config);
#endif
#if __OHOS__
template OfflineTdnnCtcModel::OfflineTdnnCtcModel(
NativeResourceManager *mgr, const OfflineModelConfig &config);
#endif
} // namespace sherpa_onnx