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enginex_bi_series-sherpa-onnx/sherpa-onnx/csrc/rknn/online-zipformer-transducer-model-rknn.cc

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// sherpa-onnx/csrc/rknn/online-zipformer-transducer-model-rknn.cc
//
// Copyright (c) 2025 Xiaomi Corporation
#include "sherpa-onnx/csrc/rknn/online-zipformer-transducer-model-rknn.h"
#include <memory>
#include <sstream>
#include <string>
#include <unordered_map>
#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/file-utils.h"
#include "sherpa-onnx/csrc/rknn/macros.h"
#include "sherpa-onnx/csrc/rknn/utils.h"
#include "sherpa-onnx/csrc/text-utils.h"
namespace sherpa_onnx {
class OnlineZipformerTransducerModelRknn::Impl {
public:
~Impl() {
auto ret = rknn_destroy(encoder_ctx_);
if (ret != RKNN_SUCC) {
SHERPA_ONNX_LOGE("Failed to destroy the encoder context");
}
ret = rknn_destroy(decoder_ctx_);
if (ret != RKNN_SUCC) {
SHERPA_ONNX_LOGE("Failed to destroy the decoder context");
}
ret = rknn_destroy(joiner_ctx_);
if (ret != RKNN_SUCC) {
SHERPA_ONNX_LOGE("Failed to destroy the joiner context");
}
}
explicit Impl(const OnlineModelConfig &config) : config_(config) {
{
auto buf = ReadFile(config.transducer.encoder);
InitEncoder(buf.data(), buf.size());
}
{
auto buf = ReadFile(config.transducer.decoder);
InitDecoder(buf.data(), buf.size());
}
{
auto buf = ReadFile(config.transducer.joiner);
InitJoiner(buf.data(), buf.size());
}
SetCoreMask(encoder_ctx_, config_.num_threads);
SetCoreMask(decoder_ctx_, config_.num_threads);
SetCoreMask(joiner_ctx_, config_.num_threads);
}
template <typename Manager>
Impl(Manager *mgr, const OnlineModelConfig &config) : config_(config) {
{
auto buf = ReadFile(mgr, config.transducer.encoder);
InitEncoder(buf.data(), buf.size());
}
{
auto buf = ReadFile(mgr, config.transducer.decoder);
InitDecoder(buf.data(), buf.size());
}
{
auto buf = ReadFile(mgr, config.transducer.joiner);
InitJoiner(buf.data(), buf.size());
}
SetCoreMask(encoder_ctx_, config_.num_threads);
SetCoreMask(decoder_ctx_, config_.num_threads);
SetCoreMask(joiner_ctx_, config_.num_threads);
}
// TODO(fangjun): Support Android
std::vector<std::vector<uint8_t>> GetEncoderInitStates() const {
// encoder_input_attrs_[0] is for the feature
// encoder_input_attrs_[1:] is for states
// so we use -1 here
std::vector<std::vector<uint8_t>> states(encoder_input_attrs_.size() - 1);
int32_t i = -1;
for (auto &attr : encoder_input_attrs_) {
i += 1;
if (i == 0) {
// skip processing the attr for features.
continue;
}
if (attr.type == RKNN_TENSOR_FLOAT16) {
states[i - 1].resize(attr.n_elems * sizeof(float));
} else if (attr.type == RKNN_TENSOR_INT64) {
states[i - 1].resize(attr.n_elems * sizeof(int64_t));
} else {
SHERPA_ONNX_LOGE("Unsupported tensor type: %d, %s", attr.type,
get_type_string(attr.type));
SHERPA_ONNX_EXIT(-1);
}
}
return states;
}
std::pair<std::vector<float>, std::vector<std::vector<uint8_t>>> RunEncoder(
std::vector<float> features,
std::vector<std::vector<uint8_t>> states) const {
std::vector<rknn_input> inputs(encoder_input_attrs_.size());
for (int32_t i = 0; i < static_cast<int32_t>(inputs.size()); ++i) {
auto &input = inputs[i];
auto &attr = encoder_input_attrs_[i];
input.index = attr.index;
if (attr.type == RKNN_TENSOR_FLOAT16) {
input.type = RKNN_TENSOR_FLOAT32;
} else if (attr.type == RKNN_TENSOR_INT64) {
input.type = RKNN_TENSOR_INT64;
} else {
SHERPA_ONNX_LOGE("Unsupported tensor type %d, %s", attr.type,
get_type_string(attr.type));
SHERPA_ONNX_EXIT(-1);
}
input.fmt = attr.fmt;
if (i == 0) {
input.buf = reinterpret_cast<void *>(features.data());
input.size = features.size() * sizeof(float);
} else {
input.buf = reinterpret_cast<void *>(states[i - 1].data());
input.size = states[i - 1].size();
}
}
std::vector<float> encoder_out(encoder_output_attrs_[0].n_elems);
// Note(fangjun): We can reuse the memory from input argument `states`
// auto next_states = GetEncoderInitStates();
auto &next_states = states;
std::vector<rknn_output> outputs(encoder_output_attrs_.size());
for (int32_t i = 0; i < outputs.size(); ++i) {
auto &output = outputs[i];
auto &attr = encoder_output_attrs_[i];
output.index = attr.index;
output.is_prealloc = 1;
if (attr.type == RKNN_TENSOR_FLOAT16) {
output.want_float = 1;
} else if (attr.type == RKNN_TENSOR_INT64) {
output.want_float = 0;
} else {
SHERPA_ONNX_LOGE("Unsupported tensor type %d, %s", attr.type,
get_type_string(attr.type));
SHERPA_ONNX_EXIT(-1);
}
if (i == 0) {
output.size = encoder_out.size() * sizeof(float);
output.buf = reinterpret_cast<void *>(encoder_out.data());
} else {
output.size = next_states[i - 1].size();
output.buf = reinterpret_cast<void *>(next_states[i - 1].data());
}
}
auto ret = rknn_inputs_set(encoder_ctx_, inputs.size(), inputs.data());
SHERPA_ONNX_RKNN_CHECK(ret, "Failed to set encoder inputs");
ret = rknn_run(encoder_ctx_, nullptr);
SHERPA_ONNX_RKNN_CHECK(ret, "Failed to run encoder");
ret =
rknn_outputs_get(encoder_ctx_, outputs.size(), outputs.data(), nullptr);
SHERPA_ONNX_RKNN_CHECK(ret, "Failed to get encoder output");
for (int32_t i = 0; i < next_states.size(); ++i) {
const auto &attr = encoder_input_attrs_[i + 1];
if (attr.n_dims == 4) {
// TODO(fangjun): The ConvertNCHWtoNHWC is copied from
// https://github.com/airockchip/rknn_model_zoo/blob/main/examples/zipformer/cpp/process.cc#L22
// I don't understand why we need to do that.
std::vector<uint8_t> dst(next_states[i].size());
int32_t n = attr.dims[0];
int32_t h = attr.dims[1];
int32_t w = attr.dims[2];
int32_t c = attr.dims[3];
ConvertNCHWtoNHWC(
reinterpret_cast<const float *>(next_states[i].data()), n, c, h, w,
reinterpret_cast<float *>(dst.data()));
next_states[i] = std::move(dst);
}
}
return {std::move(encoder_out), std::move(next_states)};
}
std::vector<float> RunDecoder(std::vector<int64_t> decoder_input) const {
auto &attr = decoder_input_attrs_[0];
rknn_input input;
input.index = 0;
input.type = RKNN_TENSOR_INT64;
input.fmt = attr.fmt;
input.buf = decoder_input.data();
input.size = decoder_input.size() * sizeof(int64_t);
std::vector<float> decoder_out(decoder_output_attrs_[0].n_elems);
rknn_output output;
output.index = decoder_output_attrs_[0].index;
output.is_prealloc = 1;
output.want_float = 1;
output.size = decoder_out.size() * sizeof(float);
output.buf = decoder_out.data();
auto ret = rknn_inputs_set(decoder_ctx_, 1, &input);
SHERPA_ONNX_RKNN_CHECK(ret, "Failed to set decoder inputs");
ret = rknn_run(decoder_ctx_, nullptr);
SHERPA_ONNX_RKNN_CHECK(ret, "Failed to run decoder");
ret = rknn_outputs_get(decoder_ctx_, 1, &output, nullptr);
SHERPA_ONNX_RKNN_CHECK(ret, "Failed to get decoder output");
return decoder_out;
}
std::vector<float> RunJoiner(const float *encoder_out,
const float *decoder_out) const {
std::vector<rknn_input> inputs(2);
inputs[0].index = 0;
inputs[0].type = RKNN_TENSOR_FLOAT32;
inputs[0].fmt = joiner_input_attrs_[0].fmt;
inputs[0].buf = const_cast<float *>(encoder_out);
inputs[0].size = joiner_input_attrs_[0].n_elems * sizeof(float);
inputs[1].index = 1;
inputs[1].type = RKNN_TENSOR_FLOAT32;
inputs[1].fmt = joiner_input_attrs_[1].fmt;
inputs[1].buf = const_cast<float *>(decoder_out);
inputs[1].size = joiner_input_attrs_[1].n_elems * sizeof(float);
std::vector<float> joiner_out(joiner_output_attrs_[0].n_elems);
rknn_output output;
output.index = joiner_output_attrs_[0].index;
output.is_prealloc = 1;
output.want_float = 1;
output.size = joiner_out.size() * sizeof(float);
output.buf = joiner_out.data();
auto ret = rknn_inputs_set(joiner_ctx_, inputs.size(), inputs.data());
SHERPA_ONNX_RKNN_CHECK(ret, "Failed to set joiner inputs");
ret = rknn_run(joiner_ctx_, nullptr);
SHERPA_ONNX_RKNN_CHECK(ret, "Failed to run joiner");
ret = rknn_outputs_get(joiner_ctx_, 1, &output, nullptr);
SHERPA_ONNX_RKNN_CHECK(ret, "Failed to get joiner output");
return joiner_out;
}
int32_t ContextSize() const { return context_size_; }
int32_t ChunkSize() const { return T_; }
int32_t ChunkShift() const { return decode_chunk_len_; }
int32_t VocabSize() const { return vocab_size_; }
rknn_tensor_attr GetEncoderOutAttr() const {
return encoder_output_attrs_[0];
}
private:
void InitEncoder(void *model_data, size_t model_data_length) {
InitContext(model_data, model_data_length, config_.debug, &encoder_ctx_);
InitInputOutputAttrs(encoder_ctx_, config_.debug, &encoder_input_attrs_,
&encoder_output_attrs_);
rknn_custom_string custom_string =
GetCustomString(encoder_ctx_, config_.debug);
auto meta = Parse(custom_string, config_.debug);
if (meta.count("encoder_dims")) {
SplitStringToIntegers(meta.at("encoder_dims"), ",", false,
&encoder_dims_);
}
if (meta.count("attention_dims")) {
SplitStringToIntegers(meta.at("attention_dims"), ",", false,
&attention_dims_);
}
if (meta.count("num_encoder_layers")) {
SplitStringToIntegers(meta.at("num_encoder_layers"), ",", false,
&num_encoder_layers_);
}
if (meta.count("cnn_module_kernels")) {
SplitStringToIntegers(meta.at("cnn_module_kernels"), ",", false,
&cnn_module_kernels_);
}
if (meta.count("left_context_len")) {
SplitStringToIntegers(meta.at("left_context_len"), ",", false,
&left_context_len_);
}
if (meta.count("T")) {
T_ = atoi(meta.at("T").c_str());
}
if (meta.count("decode_chunk_len")) {
decode_chunk_len_ = atoi(meta.at("decode_chunk_len").c_str());
}
if (meta.count("context_size")) {
context_size_ = atoi(meta.at("context_size").c_str());
}
if (config_.debug) {
auto print = [](const std::vector<int32_t> &v, const char *name) {
std::ostringstream os;
os << name << ": ";
for (auto i : v) {
os << i << " ";
}
#if __OHOS__
SHERPA_ONNX_LOGE("%{public}s\n", os.str().c_str());
#else
SHERPA_ONNX_LOGE("%s\n", os.str().c_str());
#endif
};
print(encoder_dims_, "encoder_dims");
print(attention_dims_, "attention_dims");
print(num_encoder_layers_, "num_encoder_layers");
print(cnn_module_kernels_, "cnn_module_kernels");
print(left_context_len_, "left_context_len");
#if __OHOS__
SHERPA_ONNX_LOGE("T: %{public}d", T_);
SHERPA_ONNX_LOGE("decode_chunk_len_: %{public}d", decode_chunk_len_);
#else
SHERPA_ONNX_LOGE("T: %d", T_);
SHERPA_ONNX_LOGE("decode_chunk_len_: %d", decode_chunk_len_);
#endif
}
}
void InitDecoder(void *model_data, size_t model_data_length) {
InitContext(model_data, model_data_length, config_.debug, &decoder_ctx_);
InitInputOutputAttrs(decoder_ctx_, config_.debug, &decoder_input_attrs_,
&decoder_output_attrs_);
if (decoder_input_attrs_[0].type != RKNN_TENSOR_INT64) {
SHERPA_ONNX_LOGE("Expect int64 for decoder input. Given: %d, %s",
decoder_input_attrs_[0].type,
get_type_string(decoder_input_attrs_[0].type));
SHERPA_ONNX_EXIT(-1);
}
context_size_ = decoder_input_attrs_[0].dims[1];
if (config_.debug) {
SHERPA_ONNX_LOGE("context_size: %d", context_size_);
}
}
void InitJoiner(void *model_data, size_t model_data_length) {
InitContext(model_data, model_data_length, config_.debug, &joiner_ctx_);
InitInputOutputAttrs(joiner_ctx_, config_.debug, &joiner_input_attrs_,
&joiner_output_attrs_);
vocab_size_ = joiner_output_attrs_[0].dims[1];
if (config_.debug) {
SHERPA_ONNX_LOGE("vocab_size: %d", vocab_size_);
}
}
private:
OnlineModelConfig config_;
rknn_context encoder_ctx_ = 0;
rknn_context decoder_ctx_ = 0;
rknn_context joiner_ctx_ = 0;
std::vector<rknn_tensor_attr> encoder_input_attrs_;
std::vector<rknn_tensor_attr> encoder_output_attrs_;
std::vector<rknn_tensor_attr> decoder_input_attrs_;
std::vector<rknn_tensor_attr> decoder_output_attrs_;
std::vector<rknn_tensor_attr> joiner_input_attrs_;
std::vector<rknn_tensor_attr> joiner_output_attrs_;
std::vector<int32_t> encoder_dims_;
std::vector<int32_t> attention_dims_;
std::vector<int32_t> num_encoder_layers_;
std::vector<int32_t> cnn_module_kernels_;
std::vector<int32_t> left_context_len_;
int32_t T_ = 0;
int32_t decode_chunk_len_ = 0;
int32_t context_size_ = 2;
int32_t vocab_size_ = 0;
};
OnlineZipformerTransducerModelRknn::~OnlineZipformerTransducerModelRknn() =
default;
OnlineZipformerTransducerModelRknn::OnlineZipformerTransducerModelRknn(
const OnlineModelConfig &config)
: impl_(std::make_unique<Impl>(config)) {}
template <typename Manager>
OnlineZipformerTransducerModelRknn::OnlineZipformerTransducerModelRknn(
Manager *mgr, const OnlineModelConfig &config)
: impl_(std::make_unique<Impl>(mgr, config)) {}
std::vector<std::vector<uint8_t>>
OnlineZipformerTransducerModelRknn::GetEncoderInitStates() const {
return impl_->GetEncoderInitStates();
}
std::pair<std::vector<float>, std::vector<std::vector<uint8_t>>>
OnlineZipformerTransducerModelRknn::RunEncoder(
std::vector<float> features,
std::vector<std::vector<uint8_t>> states) const {
return impl_->RunEncoder(std::move(features), std::move(states));
}
std::vector<float> OnlineZipformerTransducerModelRknn::RunDecoder(
std::vector<int64_t> decoder_input) const {
return impl_->RunDecoder(std::move(decoder_input));
}
std::vector<float> OnlineZipformerTransducerModelRknn::RunJoiner(
const float *encoder_out, const float *decoder_out) const {
return impl_->RunJoiner(encoder_out, decoder_out);
}
int32_t OnlineZipformerTransducerModelRknn::ContextSize() const {
return impl_->ContextSize();
}
int32_t OnlineZipformerTransducerModelRknn::ChunkSize() const {
return impl_->ChunkSize();
}
int32_t OnlineZipformerTransducerModelRknn::ChunkShift() const {
return impl_->ChunkShift();
}
int32_t OnlineZipformerTransducerModelRknn::VocabSize() const {
return impl_->VocabSize();
}
rknn_tensor_attr OnlineZipformerTransducerModelRknn::GetEncoderOutAttr() const {
return impl_->GetEncoderOutAttr();
}
#if __ANDROID_API__ >= 9
template OnlineZipformerTransducerModelRknn::OnlineZipformerTransducerModelRknn(
AAssetManager *mgr, const OnlineModelConfig &config);
#endif
#if __OHOS__
template OnlineZipformerTransducerModelRknn::OnlineZipformerTransducerModelRknn(
NativeResourceManager *mgr, const OnlineModelConfig &config);
#endif
} // namespace sherpa_onnx