offline-speaker-segmentation-pyannote-model.cc
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// sherpa-onnx/csrc/offline-speaker-segmentation-pyannote-model.cc
//
// Copyright (c) 2024 Xiaomi Corporation
#include "sherpa-onnx/csrc/offline-speaker-segmentation-pyannote-model.h"
#include <string>
#include <utility>
#include <vector>
#include "sherpa-onnx/csrc/onnx-utils.h"
#include "sherpa-onnx/csrc/session.h"
namespace sherpa_onnx {
class OfflineSpeakerSegmentationPyannoteModel::Impl {
public:
explicit Impl(const OfflineSpeakerSegmentationModelConfig &config)
: config_(config),
env_(ORT_LOGGING_LEVEL_ERROR),
sess_opts_(GetSessionOptions(config)),
allocator_{} {
auto buf = ReadFile(config_.pyannote.model);
Init(buf.data(), buf.size());
}
#if __ANDROID_API__ >= 9
Impl(AAssetManager *mgr, const OfflineSpeakerSegmentationModelConfig &config)
: config_(config),
env_(ORT_LOGGING_LEVEL_ERROR),
sess_opts_(GetSessionOptions(config)),
allocator_{} {
auto buf = ReadFile(mgr, config_.pyannote.model);
Init(buf.data(), buf.size());
}
#endif
const OfflineSpeakerSegmentationPyannoteModelMetaData &GetModelMetaData()
const {
return meta_data_;
}
Ort::Value Forward(Ort::Value x) {
auto out = sess_->Run({}, input_names_ptr_.data(), &x, 1,
output_names_ptr_.data(), output_names_ptr_.size());
return std::move(out[0]);
}
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);
SHERPA_ONNX_LOGE("%s\n", os.str().c_str());
}
Ort::AllocatorWithDefaultOptions allocator; // used in the macro below
SHERPA_ONNX_READ_META_DATA(meta_data_.sample_rate, "sample_rate");
SHERPA_ONNX_READ_META_DATA(meta_data_.window_size, "window_size");
meta_data_.window_shift =
static_cast<int32_t>(0.1 * meta_data_.window_size);
SHERPA_ONNX_READ_META_DATA(meta_data_.receptive_field_size,
"receptive_field_size");
SHERPA_ONNX_READ_META_DATA(meta_data_.receptive_field_shift,
"receptive_field_shift");
SHERPA_ONNX_READ_META_DATA(meta_data_.num_speakers, "num_speakers");
SHERPA_ONNX_READ_META_DATA(meta_data_.powerset_max_classes,
"powerset_max_classes");
SHERPA_ONNX_READ_META_DATA(meta_data_.num_classes, "num_classes");
}
private:
OfflineSpeakerSegmentationModelConfig 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_;
OfflineSpeakerSegmentationPyannoteModelMetaData meta_data_;
};
OfflineSpeakerSegmentationPyannoteModel::
OfflineSpeakerSegmentationPyannoteModel(
const OfflineSpeakerSegmentationModelConfig &config)
: impl_(std::make_unique<Impl>(config)) {}
#if __ANDROID_API__ >= 9
OfflineSpeakerSegmentationPyannoteModel::
OfflineSpeakerSegmentationPyannoteModel(
AAssetManager *mgr, const OfflineSpeakerSegmentationModelConfig &config)
: impl_(std::make_unique<Impl>(mgr, config)) {}
#endif
OfflineSpeakerSegmentationPyannoteModel::
~OfflineSpeakerSegmentationPyannoteModel() = default;
const OfflineSpeakerSegmentationPyannoteModelMetaData &
OfflineSpeakerSegmentationPyannoteModel::GetModelMetaData() const {
return impl_->GetModelMetaData();
}
Ort::Value OfflineSpeakerSegmentationPyannoteModel::Forward(
Ort::Value x) const {
return impl_->Forward(std::move(x));
}
} // namespace sherpa_onnx