/*
|
* Copyright (C) 2015 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.
|
*/
|
|
//#define LOG_NDEBUG 0
|
|
#define LOG_TAG "AudioDeviceCallback-JNI"
|
|
#include <utils/Log.h>
|
#include <nativehelper/JNIHelp.h>
|
#include "core_jni_helpers.h"
|
#include <media/AudioSystem.h>
|
|
#include "android_media_DeviceCallback.h"
|
|
|
// ----------------------------------------------------------------------------
|
|
using namespace android;
|
|
JNIDeviceCallback::JNIDeviceCallback(JNIEnv* env, jobject thiz, jobject weak_thiz,
|
jmethodID postEventFromNative)
|
{
|
|
// Hold onto the AudioTrack/AudioRecord class for use in calling the static method
|
// that posts events to the application thread.
|
jclass clazz = env->GetObjectClass(thiz);
|
if (clazz == NULL) {
|
return;
|
}
|
mClass = (jclass)env->NewGlobalRef(clazz);
|
|
// We use a weak reference so the AudioTrack/AudioRecord object can be garbage collected.
|
// The reference is only used as a proxy for callbacks.
|
mObject = env->NewGlobalRef(weak_thiz);
|
|
mPostEventFromNative = postEventFromNative;
|
}
|
|
JNIDeviceCallback::~JNIDeviceCallback()
|
{
|
// remove global references
|
JNIEnv *env = AndroidRuntime::getJNIEnv();
|
if (env == NULL) {
|
return;
|
}
|
env->DeleteGlobalRef(mObject);
|
env->DeleteGlobalRef(mClass);
|
}
|
|
void JNIDeviceCallback::onAudioDeviceUpdate(audio_io_handle_t audioIo,
|
audio_port_handle_t deviceId)
|
{
|
JNIEnv *env = AndroidRuntime::getJNIEnv();
|
if (env == NULL) {
|
return;
|
}
|
|
ALOGV("%s audioIo %d deviceId %d", __FUNCTION__, audioIo, deviceId);
|
env->CallStaticVoidMethod(mClass,
|
mPostEventFromNative,
|
mObject,
|
AUDIO_NATIVE_EVENT_ROUTING_CHANGE, deviceId, 0, NULL);
|
if (env->ExceptionCheck()) {
|
ALOGW("An exception occurred while notifying an event.");
|
env->ExceptionClear();
|
}
|
}
|
