83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
// sherpa-onnx/jni/wave-reader.cc
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//
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// Copyright (c) 2024 Xiaomi Corporation
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#include "sherpa-onnx/csrc/wave-reader.h"
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#include <fstream>
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#include "sherpa-onnx/csrc/macros.h"
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#include "sherpa-onnx/csrc/onnx-utils.h"
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#include "sherpa-onnx/jni/common.h"
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static jobjectArray ReadWaveImpl(JNIEnv *env, std::istream &is,
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const char *p_filename) {
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bool is_ok = false;
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int32_t sampling_rate = -1;
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std::vector<float> samples =
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sherpa_onnx::ReadWave(is, &sampling_rate, &is_ok);
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if (!is_ok) {
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SHERPA_ONNX_LOGE("Failed to read '%s'", p_filename);
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exit(-1);
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}
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jfloatArray samples_arr = env->NewFloatArray(samples.size());
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env->SetFloatArrayRegion(samples_arr, 0, samples.size(), samples.data());
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jobjectArray obj_arr = (jobjectArray)env->NewObjectArray(
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2, env->FindClass("java/lang/Object"), nullptr);
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env->SetObjectArrayElement(obj_arr, 0, samples_arr);
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env->SetObjectArrayElement(obj_arr, 1, NewInteger(env, sampling_rate));
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return obj_arr;
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}
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SHERPA_ONNX_EXTERN_C
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JNIEXPORT jobjectArray JNICALL
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Java_com_k2fsa_sherpa_onnx_WaveReader_00024Companion_readWaveFromFile(
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JNIEnv *env, jclass /*cls*/, jstring filename) {
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const char *p_filename = env->GetStringUTFChars(filename, nullptr);
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std::ifstream is(p_filename, std::ios::binary);
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auto obj_arr = ReadWaveImpl(env, is, p_filename);
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env->ReleaseStringUTFChars(filename, p_filename);
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return obj_arr;
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}
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SHERPA_ONNX_EXTERN_C
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JNIEXPORT jobjectArray JNICALL
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Java_com_k2fsa_sherpa_onnx_WaveReader_readWaveFromFile(JNIEnv *env,
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jclass /*obj*/,
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jstring filename) {
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return Java_com_k2fsa_sherpa_onnx_WaveReader_00024Companion_readWaveFromFile(
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env, nullptr, filename);
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}
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SHERPA_ONNX_EXTERN_C
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JNIEXPORT jobjectArray JNICALL
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Java_com_k2fsa_sherpa_onnx_WaveReader_00024Companion_readWaveFromAsset(
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JNIEnv *env, jclass /*cls*/, jobject asset_manager, jstring filename) {
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const char *p_filename = env->GetStringUTFChars(filename, nullptr);
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#if __ANDROID_API__ >= 9
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AAssetManager *mgr = AAssetManager_fromJava(env, asset_manager);
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if (!mgr) {
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SHERPA_ONNX_LOGE("Failed to get asset manager: %p", mgr);
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exit(-1);
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}
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std::vector<char> buffer = sherpa_onnx::ReadFile(mgr, p_filename);
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std::istrstream is(buffer.data(), buffer.size());
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#else
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std::ifstream is(p_filename, std::ios::binary);
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#endif
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auto obj_arr = ReadWaveImpl(env, is, p_filename);
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env->ReleaseStringUTFChars(filename, p_filename);
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return obj_arr;
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}
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