| /* |
| * Copyright 2020 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. |
| */ |
| #include <jni.h> |
| |
| #include <android/log.h> |
| |
| #include "AppCallbackAudioSink.h" |
| |
| static const char * const TAG = "AppCallbackAudioSink"; |
| |
| AppCallbackAudioSink::AppCallbackAudioSink(JNIEnv *env, jobject callbackObj) { |
| jint rs = env->GetJavaVM(&mJVM); |
| mCallbackObj = env->NewGlobalRef(callbackObj); |
| |
| jclass callbackClass = env->GetObjectClass(mCallbackObj); |
| mMIDonDataReady = env->GetMethodID(callbackClass, "onDataReady", "([FI)V"); |
| } |
| |
| void AppCallbackAudioSink::init(int numFrames, int numChannels) { |
| JNIEnv * env; |
| int getEnvStat = mJVM->GetEnv((void **)&env, JNI_VERSION_1_6); |
| |
| if (getEnvStat == JNI_EDETACHED) { |
| int rs = mJVM->AttachCurrentThread(&env, NULL); |
| } |
| |
| mAudioDataArrayLength = numChannels * numFrames; |
| mAudioDataArray = env->NewFloatArray(mAudioDataArrayLength); |
| mAudioDataArray = (jfloatArray)env->NewGlobalRef(mAudioDataArray); |
| |
| if (getEnvStat == JNI_EDETACHED) { |
| mJVM->DetachCurrentThread(); |
| } |
| } |
| |
| void AppCallbackAudioSink::start() { |
| } |
| |
| void AppCallbackAudioSink::stop() { |
| JNIEnv * env; |
| int getEnvStat = mJVM->GetEnv((void **)&env, JNI_VERSION_1_6); |
| |
| if (getEnvStat == JNI_EDETACHED) { |
| int rs = mJVM->AttachCurrentThread(&env, NULL); |
| } |
| |
| releaseJNIResources(env); |
| |
| if (getEnvStat == JNI_EDETACHED) { |
| mJVM->DetachCurrentThread(); |
| } |
| } |
| |
| void AppCallbackAudioSink::push(float* audioData, int numFrames, int numChannels) { |
| // __android_log_print(ANDROID_LOG_INFO, TAG, "push(numFrames:%d, numChannels:%d)", |
| // numFrames, numChannels); |
| |
| // Get the local JNI env |
| JNIEnv * env; |
| int getEnvStat = mJVM->GetEnv((void **)&env, JNI_VERSION_1_6); |
| |
| if (getEnvStat == JNI_EDETACHED) { |
| int rs = mJVM->AttachCurrentThread(&env, NULL); |
| } |
| |
| // put the float* into a jfloatarray |
| env->SetFloatArrayRegion(mAudioDataArray, 0, mAudioDataArrayLength, audioData); |
| env->CallVoidMethod(mCallbackObj, mMIDonDataReady, mAudioDataArray, numFrames); |
| |
| if (getEnvStat == JNI_EDETACHED) { |
| mJVM->DetachCurrentThread(); |
| } |
| } |
| |
| void AppCallbackAudioSink::releaseJNIResources(JNIEnv *env) { |
| env->DeleteGlobalRef(mCallbackObj); |
| } |
| |
| extern "C" { |
| JNIEXPORT jlong JNICALL |
| Java_org_hyphonate_megaaudio_recorder_sinks_AppCallbackAudioSinkProvider_allocOboeSinkN( |
| JNIEnv *env, jobject thiz, jobject callback_obj) { |
| AppCallbackAudioSink* sink = new AppCallbackAudioSink(env, callback_obj); |
| return (jlong)sink; |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_org_hyphonate_megaaudio_recorder_sinks_AppCallbackAudioSinkProvider_releaseJNIResourcesN( |
| JNIEnv *env, jobject thiz, jlong oboe_sink) { |
| AppCallbackAudioSink* sink = (AppCallbackAudioSink*)oboe_sink; |
| sink->releaseJNIResources(env); |
| } |
| |
| } // extern "C" |