speaker-embedding-manager.cc
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// sherpa-onnx/jni/speaker-embedding-manager.cc
//
// Copyright (c) 2024 Xiaomi Corporation
#include "sherpa-onnx/csrc/speaker-embedding-manager.h"
#include "sherpa-onnx/csrc/macros.h"
#include "sherpa-onnx/jni/common.h"
SHERPA_ONNX_EXTERN_C
JNIEXPORT jlong JNICALL
Java_com_k2fsa_sherpa_onnx_SpeakerEmbeddingManager_create(JNIEnv *env,
jobject /*obj*/,
jint dim) {
auto p = new sherpa_onnx::SpeakerEmbeddingManager(dim);
return (jlong)p;
}
SHERPA_ONNX_EXTERN_C
JNIEXPORT void JNICALL
Java_com_k2fsa_sherpa_onnx_SpeakerEmbeddingManager_delete(JNIEnv * /*env*/,
jobject /*obj*/,
jlong ptr) {
auto manager = reinterpret_cast<sherpa_onnx::SpeakerEmbeddingManager *>(ptr);
delete manager;
}
SHERPA_ONNX_EXTERN_C
JNIEXPORT jboolean JNICALL
Java_com_k2fsa_sherpa_onnx_SpeakerEmbeddingManager_add(JNIEnv *env,
jobject /*obj*/,
jlong ptr, jstring name,
jfloatArray embedding) {
auto manager = reinterpret_cast<sherpa_onnx::SpeakerEmbeddingManager *>(ptr);
jfloat *p = env->GetFloatArrayElements(embedding, nullptr);
jsize n = env->GetArrayLength(embedding);
if (n != manager->Dim()) {
SHERPA_ONNX_LOGE("Expected dim %d, given %d", manager->Dim(),
static_cast<int32_t>(n));
exit(-1);
}
const char *p_name = env->GetStringUTFChars(name, nullptr);
jboolean ok = manager->Add(p_name, p);
env->ReleaseStringUTFChars(name, p_name);
env->ReleaseFloatArrayElements(embedding, p, JNI_ABORT);
return ok;
}
SHERPA_ONNX_EXTERN_C
JNIEXPORT jboolean JNICALL
Java_com_k2fsa_sherpa_onnx_SpeakerEmbeddingManager_addList(
JNIEnv *env, jobject /*obj*/, jlong ptr, jstring name,
jobjectArray embedding_arr) {
auto manager = reinterpret_cast<sherpa_onnx::SpeakerEmbeddingManager *>(ptr);
int num_embeddings = env->GetArrayLength(embedding_arr);
if (num_embeddings == 0) {
return false;
}
std::vector<std::vector<float>> embedding_list;
embedding_list.reserve(num_embeddings);
for (int32_t i = 0; i != num_embeddings; ++i) {
jfloatArray embedding =
(jfloatArray)env->GetObjectArrayElement(embedding_arr, i);
jfloat *p = env->GetFloatArrayElements(embedding, nullptr);
jsize n = env->GetArrayLength(embedding);
if (n != manager->Dim()) {
SHERPA_ONNX_LOGE("i: %d. Expected dim %d, given %d", i, manager->Dim(),
static_cast<int32_t>(n));
exit(-1);
}
embedding_list.push_back({p, p + n});
env->ReleaseFloatArrayElements(embedding, p, JNI_ABORT);
}
const char *p_name = env->GetStringUTFChars(name, nullptr);
jboolean ok = manager->Add(p_name, embedding_list);
env->ReleaseStringUTFChars(name, p_name);
return ok;
}
SHERPA_ONNX_EXTERN_C
JNIEXPORT jboolean JNICALL
Java_com_k2fsa_sherpa_onnx_SpeakerEmbeddingManager_remove(JNIEnv *env,
jobject /*obj*/,
jlong ptr,
jstring name) {
auto manager = reinterpret_cast<sherpa_onnx::SpeakerEmbeddingManager *>(ptr);
const char *p_name = env->GetStringUTFChars(name, nullptr);
jboolean ok = manager->Remove(p_name);
env->ReleaseStringUTFChars(name, p_name);
return ok;
}
SHERPA_ONNX_EXTERN_C
JNIEXPORT jstring JNICALL
Java_com_k2fsa_sherpa_onnx_SpeakerEmbeddingManager_search(JNIEnv *env,
jobject /*obj*/,
jlong ptr,
jfloatArray embedding,
jfloat threshold) {
auto manager = reinterpret_cast<sherpa_onnx::SpeakerEmbeddingManager *>(ptr);
jfloat *p = env->GetFloatArrayElements(embedding, nullptr);
jsize n = env->GetArrayLength(embedding);
if (n != manager->Dim()) {
SHERPA_ONNX_LOGE("Expected dim %d, given %d", manager->Dim(),
static_cast<int32_t>(n));
exit(-1);
}
std::string name = manager->Search(p, threshold);
env->ReleaseFloatArrayElements(embedding, p, JNI_ABORT);
return env->NewStringUTF(name.c_str());
}
SHERPA_ONNX_EXTERN_C
JNIEXPORT jboolean JNICALL
Java_com_k2fsa_sherpa_onnx_SpeakerEmbeddingManager_verify(
JNIEnv *env, jobject /*obj*/, jlong ptr, jstring name,
jfloatArray embedding, jfloat threshold) {
auto manager = reinterpret_cast<sherpa_onnx::SpeakerEmbeddingManager *>(ptr);
jfloat *p = env->GetFloatArrayElements(embedding, nullptr);
jsize n = env->GetArrayLength(embedding);
if (n != manager->Dim()) {
SHERPA_ONNX_LOGE("Expected dim %d, given %d", manager->Dim(),
static_cast<int32_t>(n));
exit(-1);
}
const char *p_name = env->GetStringUTFChars(name, nullptr);
jboolean ok = manager->Verify(p_name, p, threshold);
env->ReleaseFloatArrayElements(embedding, p, JNI_ABORT);
env->ReleaseStringUTFChars(name, p_name);
return ok;
}
SHERPA_ONNX_EXTERN_C
JNIEXPORT jboolean JNICALL
Java_com_k2fsa_sherpa_onnx_SpeakerEmbeddingManager_contains(JNIEnv *env,
jobject /*obj*/,
jlong ptr,
jstring name) {
auto manager = reinterpret_cast<sherpa_onnx::SpeakerEmbeddingManager *>(ptr);
const char *p_name = env->GetStringUTFChars(name, nullptr);
jboolean ok = manager->Contains(p_name);
env->ReleaseStringUTFChars(name, p_name);
return ok;
}
SHERPA_ONNX_EXTERN_C
JNIEXPORT jint JNICALL
Java_com_k2fsa_sherpa_onnx_SpeakerEmbeddingManager_numSpeakers(JNIEnv * /*env*/,
jobject /*obj*/,
jlong ptr) {
auto manager = reinterpret_cast<sherpa_onnx::SpeakerEmbeddingManager *>(ptr);
return manager->NumSpeakers();
}
SHERPA_ONNX_EXTERN_C
JNIEXPORT jobjectArray JNICALL
Java_com_k2fsa_sherpa_onnx_SpeakerEmbeddingManager_allSpeakerNames(
JNIEnv *env, jobject /*obj*/, jlong ptr) {
auto manager = reinterpret_cast<sherpa_onnx::SpeakerEmbeddingManager *>(ptr);
std::vector<std::string> all_speakers = manager->GetAllSpeakers();
jobjectArray obj_arr = (jobjectArray)env->NewObjectArray(
all_speakers.size(), env->FindClass("java/lang/String"), nullptr);
int32_t i = 0;
for (auto &s : all_speakers) {
jstring js = env->NewStringUTF(s.c_str());
env->SetObjectArrayElement(obj_arr, i, js);
++i;
}
return obj_arr;
}