1 /*
2 * Copyright 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 #include <jni.h>
18
19 #include "AudioSink.h"
20
21 //TODO - Probably wrap the JNI handling in a class with a pointer held in the Java Object
22 // so as to support multiple instances... maybe.
23
24 // JNI Stuff
25 extern "C" {
26
27 JNIEXPORT void JNICALL
Java_org_hyphonate_megaaudio_recorder_NativeAudioSink_initN(JNIEnv * env,jobject thiz,jlong native_sink_ptr,jint num_frames,jint num_chans)28 Java_org_hyphonate_megaaudio_recorder_NativeAudioSink_initN(JNIEnv * env , jobject thiz,
29 jlong native_sink_ptr , jint num_frames, jint num_chans ) {
30 // this is in the wrong place, or rather we need an init() method of AudioSink to call.
31 AudioSink* sink = (AudioSink*)native_sink_ptr;
32 sink->init(num_frames, num_chans);
33 }
34
35 JNIEXPORT void JNICALL
Java_org_hyphonate_megaaudio_recorder_NativeAudioSink_startN(JNIEnv * env,jobject thiz,jlong native_sink_ptr)36 Java_org_hyphonate_megaaudio_recorder_NativeAudioSink_startN(JNIEnv *env, jobject thiz, jlong native_sink_ptr) {
37 AudioSink* sink = (AudioSink*)native_sink_ptr;
38 sink->start();
39 }
40
41 JNIEXPORT void JNICALL
Java_org_hyphonate_megaaudio_recorder_NativeAudioSink_stopN(JNIEnv * env,jobject thiz,jlong native_sink_ptr)42 Java_org_hyphonate_megaaudio_recorder_NativeAudioSink_stopN(JNIEnv *env, jobject thiz, jlong native_sink_ptr) {
43 AudioSink* sink = (AudioSink*)native_sink_ptr;
44 sink->stop();
45 }
46
47 JNIEXPORT void JNICALL
Java_org_hyphonate_megaaudio_recorder_NativeAudioSink_pushN(JNIEnv * env,jobject thiz,jlong native_sink_ptr,jfloatArray audio_data,jint num_frames,jint num_chans)48 Java_org_hyphonate_megaaudio_recorder_NativeAudioSink_pushN(
49 JNIEnv *env, jobject thiz, jlong native_sink_ptr,
50 jfloatArray audio_data, jint num_frames, jint num_chans) {
51 AudioSink * audioSink = (AudioSink*)native_sink_ptr;
52
53 // convert to float[]
54 float* nativeAudioData = env->GetFloatArrayElements(audio_data, 0);
55
56 audioSink->push(nativeAudioData, num_frames, num_chans);
57 }
58
59 } // extern "C"
60