1 /* 2 * Copyright (C) 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_MEDIA_AUDIO_TRACK_CALLBACK_H 18 #define ANDROID_MEDIA_AUDIO_TRACK_CALLBACK_H 19 20 #include <android/media/BnAudioTrackCallback.h> 21 22 namespace android { 23 24 #define AUDIO_NATIVE_EVENT_CODEC_FORMAT_CHANGE 100 25 26 // TODO(b/149870866) : Extract common part for JNIAudioTrackCallback and JNIDeviceCallback 27 class JNIAudioTrackCallback : public media::BnAudioTrackCallback { 28 public: 29 JNIAudioTrackCallback(JNIEnv* env, jobject thiz, jobject weak_thiz, 30 jmethodID postEventFromNative); 31 ~JNIAudioTrackCallback() override; 32 33 binder::Status onCodecFormatChanged(const std::vector<uint8_t>& audioMetadata) override; 34 35 private: 36 jclass mClass; // Reference to AudioTrack class 37 jobject mObject; // Weak ref to AudioTrack Java object to call on 38 jmethodID mPostEventFromNative; // postEventFromNative method ID 39 jclass mByteBufferClass; // Reference to ByteBuffer class 40 jmethodID mAllocateDirectMethod; // ByteBuffer.allocateDirect method ID 41 }; 42 43 }; // namespace android 44 45 #endif // ANDROID_MEDIA_AUDIO_TRACK_CALLBACK_H 46