hifigan-vocoder.cc
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// sherpa-onnx/csrc/hifigan-vocoder.cc
//
// Copyright (c) 2024 Xiaomi Corporation
#include "sherpa-onnx/csrc/hifigan-vocoder.h"
#include <string>
#include <utility>
#include <vector>
#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/macros.h"
#include "sherpa-onnx/csrc/onnx-utils.h"
#include "sherpa-onnx/csrc/session.h"
namespace sherpa_onnx {
class HifiganVocoder::Impl {
public:
explicit Impl(int32_t num_threads, const std::string &provider,
const std::string &model)
: env_(ORT_LOGGING_LEVEL_ERROR),
sess_opts_(GetSessionOptions(num_threads, provider)),
allocator_{} {
auto buf = ReadFile(model);
Init(buf.data(), buf.size());
}
template <typename Manager>
explicit Impl(Manager *mgr, int32_t num_threads, const std::string &provider,
const std::string &model)
: env_(ORT_LOGGING_LEVEL_ERROR),
sess_opts_(GetSessionOptions(num_threads, provider)),
allocator_{} {
auto buf = ReadFile(mgr, model);
Init(buf.data(), buf.size());
}
Ort::Value Run(Ort::Value mel) const {
auto out = sess_->Run({}, input_names_ptr_.data(), &mel, 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_);
}
private:
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_;
};
HifiganVocoder::HifiganVocoder(int32_t num_threads, const std::string &provider,
const std::string &model)
: impl_(std::make_unique<Impl>(num_threads, provider, model)) {}
template <typename Manager>
HifiganVocoder::HifiganVocoder(Manager *mgr, int32_t num_threads,
const std::string &provider,
const std::string &model)
: impl_(std::make_unique<Impl>(mgr, num_threads, provider, model)) {}
HifiganVocoder::~HifiganVocoder() = default;
Ort::Value HifiganVocoder::Run(Ort::Value mel) const {
return impl_->Run(std::move(mel));
}
#if __ANDROID_API__ >= 9
template HifiganVocoder::HifiganVocoder(AAssetManager *mgr, int32_t num_threads,
const std::string &provider,
const std::string &model);
#endif
#if __OHOS__
template HifiganVocoder::HifiganVocoder(NativeResourceManager *mgr,
int32_t num_threads,
const std::string &provider,
const std::string &model);
#endif
} // namespace sherpa_onnx