68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
// sherpa-onnx/csrc/offline-dolphin-model.h
|
|
//
|
|
// Copyright (c) 2025 Xiaomi Corporation
|
|
#ifndef SHERPA_ONNX_CSRC_OFFLINE_DOLPHIN_MODEL_H_
|
|
#define SHERPA_ONNX_CSRC_OFFLINE_DOLPHIN_MODEL_H_
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include "onnxruntime_cxx_api.h" // NOLINT
|
|
#include "sherpa-onnx/csrc/offline-ctc-model.h"
|
|
#include "sherpa-onnx/csrc/offline-dolphin-model-meta-data.h"
|
|
#include "sherpa-onnx/csrc/offline-model-config.h"
|
|
|
|
namespace sherpa_onnx {
|
|
|
|
class OfflineDolphinModel : public OfflineCtcModel {
|
|
public:
|
|
explicit OfflineDolphinModel(const OfflineModelConfig &config);
|
|
|
|
template <typename Manager>
|
|
OfflineDolphinModel(Manager *mgr, const OfflineModelConfig &config);
|
|
|
|
~OfflineDolphinModel() override;
|
|
|
|
/** Run the forward method of the model.
|
|
*
|
|
* @param features A tensor of shape (N, T, C).
|
|
* @param features_length A 1-D tensor of shape (N,) containing number of
|
|
* valid frames in `features` before padding.
|
|
* Its dtype is int64_t.
|
|
*
|
|
* @return Return a vector containing:
|
|
* - log_probs: A 3-D tensor of shape (N, T', vocab_size).
|
|
* - log_probs_length A 1-D tensor of shape (N,). Its dtype is int64_t
|
|
*/
|
|
std::vector<Ort::Value> Forward(Ort::Value features,
|
|
Ort::Value features_length) override;
|
|
|
|
/** Return the vocabulary size of the model
|
|
*/
|
|
int32_t VocabSize() const override;
|
|
|
|
/** SubsamplingFactor of the model
|
|
*
|
|
* For Citrinet, the subsampling factor is usually 4.
|
|
* For Conformer CTC, the subsampling factor is usually 8.
|
|
*/
|
|
int32_t SubsamplingFactor() const override;
|
|
|
|
/** Return an allocator for allocating memory
|
|
*/
|
|
OrtAllocator *Allocator() const override;
|
|
|
|
bool SupportBatchProcessing() const override { return true; }
|
|
|
|
void NormalizeFeatures(float *features, int32_t num_frames,
|
|
int32_t feat_dim) const override;
|
|
|
|
private:
|
|
class Impl;
|
|
std::unique_ptr<Impl> impl_;
|
|
};
|
|
|
|
} // namespace sherpa_onnx
|
|
|
|
#endif // SHERPA_ONNX_CSRC_OFFLINE_DOLPHIN_MODEL_H_
|