114 lines
3.2 KiB
C++
114 lines
3.2 KiB
C++
// sherpa-onnx/csrc/offline-ced-model.cc
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//
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// Copyright (c) 2024 Xiaomi Corporation
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#include "sherpa-onnx/csrc/offline-ced-model.h"
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#include <string>
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#include <vector>
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#include "sherpa-onnx/csrc/file-utils.h"
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#include "sherpa-onnx/csrc/onnx-utils.h"
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#include "sherpa-onnx/csrc/session.h"
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#include "sherpa-onnx/csrc/text-utils.h"
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#include "sherpa-onnx/csrc/transpose.h"
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namespace sherpa_onnx {
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class OfflineCEDModel::Impl {
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public:
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explicit Impl(const AudioTaggingModelConfig &config)
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: config_(config),
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env_(ORT_LOGGING_LEVEL_ERROR),
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sess_opts_(GetSessionOptions(config)),
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allocator_{} {
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auto buf = ReadFile(config_.ced);
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Init(buf.data(), buf.size());
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}
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#if __ANDROID_API__ >= 9
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Impl(AAssetManager *mgr, const AudioTaggingModelConfig &config)
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: config_(config),
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env_(ORT_LOGGING_LEVEL_ERROR),
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sess_opts_(GetSessionOptions(config)),
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allocator_{} {
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auto buf = ReadFile(mgr, config_.ced);
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Init(buf.data(), buf.size());
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}
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#endif
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Ort::Value Forward(Ort::Value features) {
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features = Transpose12(allocator_, &features);
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auto ans = sess_->Run({}, input_names_ptr_.data(), &features, 1,
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output_names_ptr_.data(), output_names_ptr_.size());
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return std::move(ans[0]);
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}
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int32_t NumEventClasses() const { return num_event_classes_; }
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OrtAllocator *Allocator() { return allocator_; }
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private:
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void Init(void *model_data, size_t model_data_length) {
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sess_ = std::make_unique<Ort::Session>(env_, model_data, model_data_length,
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sess_opts_);
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GetInputNames(sess_.get(), &input_names_, &input_names_ptr_);
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GetOutputNames(sess_.get(), &output_names_, &output_names_ptr_);
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// get meta data
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Ort::ModelMetadata meta_data = sess_->GetModelMetadata();
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if (config_.debug) {
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std::ostringstream os;
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PrintModelMetadata(os, meta_data);
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SHERPA_ONNX_LOGE("%s\n", os.str().c_str());
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}
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// get num_event_classes from the output[0].shape,
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// which is (N, num_event_classes)
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num_event_classes_ =
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sess_->GetOutputTypeInfo(0).GetTensorTypeAndShapeInfo().GetShape()[1];
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}
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private:
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AudioTaggingModelConfig config_;
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Ort::Env env_;
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Ort::SessionOptions sess_opts_;
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Ort::AllocatorWithDefaultOptions allocator_;
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std::unique_ptr<Ort::Session> sess_;
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std::vector<std::string> input_names_;
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std::vector<const char *> input_names_ptr_;
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std::vector<std::string> output_names_;
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std::vector<const char *> output_names_ptr_;
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int32_t num_event_classes_ = 0;
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};
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OfflineCEDModel::OfflineCEDModel(const AudioTaggingModelConfig &config)
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: impl_(std::make_unique<Impl>(config)) {}
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#if __ANDROID_API__ >= 9
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OfflineCEDModel::OfflineCEDModel(AAssetManager *mgr,
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const AudioTaggingModelConfig &config)
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: impl_(std::make_unique<Impl>(mgr, config)) {}
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#endif
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OfflineCEDModel::~OfflineCEDModel() = default;
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Ort::Value OfflineCEDModel::Forward(Ort::Value features) const {
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return impl_->Forward(std::move(features));
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}
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int32_t OfflineCEDModel::NumEventClasses() const {
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return impl_->NumEventClasses();
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}
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OrtAllocator *OfflineCEDModel::Allocator() const { return impl_->Allocator(); }
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} // namespace sherpa_onnx
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