text: // Copyright 2019 The MediaPipe Authors.
  //
  // 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.
  
  #ifndef JAVA_COM_GOOGLE_MEDIAPIPE_FRAMEWORK_JNI_PACKET_CONTEXT_JNI_H_
  #define JAVA_COM_GOOGLE_MEDIAPIPE_FRAMEWORK_JNI_PACKET_CONTEXT_JNI_H_
  
  #include <jni.h>
  
  #ifdef __cplusplus
  extern "C" {
  #endif  // __cplusplus
  
  #define PACKET_METHOD(METHOD_NAME) \
    Java_com_google_mediapipe_framework_Packet_##METHOD_NAME
  
  // Releases a native mediapipe packet.
  JNIEXPORT void JNICALL PACKET_METHOD(nativeReleasePacket)(JNIEnv* env,
                                                            jobject thiz,
                                                            jlong packet);
  
  // Returns the timestamp of the packet.
  JNIEXPORT jlong JNICALL PACKET_METHOD(nativeGetTimestamp)(JNIEnv* env,
                                                            jobject thiz,
                                                            jlong packet);
  
  // Make a copy of a mediapipe packet, basically increase the reference count.
  JNIEXPORT jlong JNICALL PACKET_METHOD(nativeCopyPacket)(JNIEnv* env,
                                                          jobject thiz,
                                                          jlong packet);
  
  #ifdef __cplusplus
  }  // extern "C"
  #endif  // __cplusplus
  
  // Calls the java method to create an instance of java Packet.
  jobject CreateJavaPacket(JNIEnv* env, jclass packet_cls, jlong packet);
  
  #endif  // JAVA_COM_GOOGLE_MEDIAPIPE_FRAMEWORK_JNI_PACKET_CONTEXT_JNI_H_
  