diff --git a/media/ndk/NdkJavaVMHelper.cpp b/media/ndk/NdkJavaVMHelper.cpp
new file mode 100644
index 0000000..baf2744
--- /dev/null
+++ b/media/ndk/NdkJavaVMHelper.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "NdkJavaVMHelper"
+
+#include <media/NdkJavaVMHelper.h>
+#include <utils/Log.h>
+
+namespace android {
+
+// static
+JNIEnv *NdkJavaVMHelper::getJNIEnv() {
+    JNIEnv *env;
+    jsize nVMs;
+    JavaVM *vm;
+
+    int status = JNI_GetCreatedJavaVMs(&vm, 1, &nVMs);
+    if (status != JNI_OK || nVMs == 0 || vm == NULL) {
+        ALOGE("Failed to get JVM instance");
+        return NULL;
+    } else if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
+        ALOGE("Failed to get JNIEnv for JavaVM: %p", vm);
+        return NULL;
+    }
+
+    return env;
+}
+
+}  // namespace android
\ No newline at end of file