71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
// sherpa-onnx/csrc/offline-recognizer.cc
|
|
//
|
|
// Copyright (c) 2023 Xiaomi Corporation
|
|
|
|
#include "sherpa-onnx/csrc/offline-recognizer.h"
|
|
|
|
#include <memory>
|
|
|
|
#include "sherpa-onnx/csrc/file-utils.h"
|
|
#include "sherpa-onnx/csrc/macros.h"
|
|
#include "sherpa-onnx/csrc/offline-lm-config.h"
|
|
#include "sherpa-onnx/csrc/offline-recognizer-impl.h"
|
|
|
|
namespace sherpa_onnx {
|
|
|
|
void OfflineRecognizerConfig::Register(ParseOptions *po) {
|
|
feat_config.Register(po);
|
|
model_config.Register(po);
|
|
lm_config.Register(po);
|
|
|
|
po->Register(
|
|
"decoding-method", &decoding_method,
|
|
"decoding method,"
|
|
"Valid values: greedy_search, modified_beam_search. "
|
|
"modified_beam_search is applicable only for transducer models.");
|
|
|
|
po->Register("max-active-paths", &max_active_paths,
|
|
"Used only when decoding_method is modified_beam_search");
|
|
}
|
|
|
|
bool OfflineRecognizerConfig::Validate() const {
|
|
if (decoding_method == "modified_beam_search" && !lm_config.model.empty()) {
|
|
if (max_active_paths <= 0) {
|
|
SHERPA_ONNX_LOGE("max_active_paths is less than 0! Given: %d",
|
|
max_active_paths);
|
|
return false;
|
|
}
|
|
if (!lm_config.Validate()) return false;
|
|
}
|
|
|
|
return model_config.Validate();
|
|
}
|
|
|
|
std::string OfflineRecognizerConfig::ToString() const {
|
|
std::ostringstream os;
|
|
|
|
os << "OfflineRecognizerConfig(";
|
|
os << "feat_config=" << feat_config.ToString() << ", ";
|
|
os << "model_config=" << model_config.ToString() << ", ";
|
|
os << "lm_config=" << lm_config.ToString() << ", ";
|
|
os << "decoding_method=\"" << decoding_method << "\", ";
|
|
os << "max_active_paths=" << max_active_paths << ")";
|
|
|
|
return os.str();
|
|
}
|
|
|
|
OfflineRecognizer::OfflineRecognizer(const OfflineRecognizerConfig &config)
|
|
: impl_(OfflineRecognizerImpl::Create(config)) {}
|
|
|
|
OfflineRecognizer::~OfflineRecognizer() = default;
|
|
|
|
std::unique_ptr<OfflineStream> OfflineRecognizer::CreateStream() const {
|
|
return impl_->CreateStream();
|
|
}
|
|
|
|
void OfflineRecognizer::DecodeStreams(OfflineStream **ss, int32_t n) const {
|
|
impl_->DecodeStreams(ss, n);
|
|
}
|
|
|
|
} // namespace sherpa_onnx
|