| /* |
| * Copyright (C) 2019 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 <sstream> |
| |
| #include "core_jni_helpers.h" |
| #include <media/AudioSystem.h> |
| |
| namespace android { |
| |
| namespace { |
| |
| #define PACKAGE "com/android/server/soundtrigger_middleware" |
| #define CLASSNAME PACKAGE "/AudioSessionProviderImpl" |
| #define SESSION_CLASSNAME PACKAGE "/SoundTriggerMiddlewareImpl$AudioSessionProvider$AudioSession" |
| |
| jobject acquireAudioSession( |
| JNIEnv* env, |
| jobject clazz) { |
| |
| audio_session_t session; |
| audio_io_handle_t ioHandle; |
| audio_devices_t device; |
| |
| status_t status = AudioSystem::acquireSoundTriggerSession(&session, |
| &ioHandle, |
| &device); |
| if (status != 0) { |
| std::ostringstream message; |
| message |
| << "AudioSystem::acquireSoundTriggerSession returned an error code: " |
| << status; |
| env->ThrowNew(FindClassOrDie(env, "java/lang/RuntimeException"), |
| message.str().c_str()); |
| return nullptr; |
| } |
| |
| jclass cls = FindClassOrDie(env, SESSION_CLASSNAME); |
| jmethodID ctor = GetMethodIDOrDie(env, cls, "<init>", "(III)V"); |
| return env->NewObject(cls, |
| ctor, |
| static_cast<int>(session), |
| static_cast<int>(ioHandle), |
| static_cast<int>(device)); |
| } |
| |
| void releaseAudioSession(JNIEnv* env, jobject clazz, jint handle) { |
| status_t status = |
| AudioSystem::releaseSoundTriggerSession(static_cast<audio_session_t>(handle)); |
| |
| if (status != 0) { |
| std::ostringstream message; |
| message |
| << "AudioSystem::releaseAudioSystemSession returned an error code: " |
| << status; |
| env->ThrowNew(FindClassOrDie(env, "java/lang/RuntimeException"), |
| message.str().c_str()); |
| } |
| } |
| |
| const JNINativeMethod g_methods[] = { |
| {"acquireSession", "()L" SESSION_CLASSNAME ";", |
| reinterpret_cast<void*>(acquireAudioSession)}, |
| {"releaseSession", "(I)V", |
| reinterpret_cast<void*>(releaseAudioSession)}, |
| }; |
| |
| } // namespace |
| |
| int register_com_android_server_soundtrigger_middleware_AudioSessionProviderImpl( |
| JNIEnv* env) { |
| return RegisterMethodsOrDie(env, |
| CLASSNAME, |
| g_methods, |
| NELEM(g_methods)); |
| } |
| |
| } // namespace android |