| /* |
| * 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 <cstdlib> |
| #include <ctime> |
| |
| #include "NoiseAudioSource.h" |
| |
| NoiseAudioSource::NoiseAudioSource() { |
| srand (static_cast <unsigned> (time(0))); |
| } |
| |
| int NoiseAudioSource::pull(float* buffer, int numFrames, int numChans) { |
| int numSamples = numFrames * numChans; |
| for(int index = 0; index < numSamples; index++) { |
| buffer[index] = (float)((drand48() * 2.0) - 1.0); |
| } |
| |
| return numFrames; |
| } |
| |
| // |
| // JNI |
| // |
| #include <jni.h> |
| |
| extern "C" { |
| JNIEXPORT jlong JNICALL |
| Java_com_android_smoke_megaplayer_sources_NoiseAudioSourceProvider_native_1getNativeSource( |
| JNIEnv *env, jobject thiz) { |
| return (jlong)new NoiseAudioSource; |
| } |
| |
| } // extern "C" |