/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "AudioProductStrategies-JNI"
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#include <inttypes.h>
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#include <jni.h>
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#include <nativehelper/JNIHelp.h>
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#include "core_jni_helpers.h"
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#include <utils/Log.h>
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#include <vector>
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#include <media/AudioSystem.h>
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#include <media/AudioPolicy.h>
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#include <nativehelper/ScopedUtfChars.h>
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#include "android_media_AudioAttributes.h"
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#include "android_media_AudioErrors.h"
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// ----------------------------------------------------------------------------
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using namespace android;
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// ----------------------------------------------------------------------------
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static const char* const kClassPathName = "android/media/audiopolicy/AudioProductStrategy";
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static const char* const kAudioProductStrategyClassPathName =
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"android/media/audiopolicy/AudioProductStrategy";
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static const char* const kAudioAttributesGroupsClassPathName =
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"android/media/audiopolicy/AudioProductStrategy$AudioAttributesGroup";
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static jclass gAudioProductStrategyClass;
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static jmethodID gAudioProductStrategyCstor;
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static struct {
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jfieldID mAudioAttributesGroups;
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jfieldID mName;
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jfieldID mId;
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} gAudioProductStrategyFields;
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static jclass gAudioAttributesGroupClass;
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static jmethodID gAudioAttributesGroupCstor;
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static struct {
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jfieldID mVolumeGroupId;
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jfieldID mLegacyStreamType;
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jfieldID mAudioAttributes;
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} gAudioAttributesGroupsFields;
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static jclass gArrayListClass;
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static struct {
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jmethodID add;
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jmethodID toArray;
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} gArrayListMethods;
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static jint convertAudioProductStrategiesFromNative(
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JNIEnv *env, jobject *jAudioStrategy, const AudioProductStrategy &strategy)
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{
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jint jStatus = (jint)AUDIO_JAVA_SUCCESS;
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jobjectArray jAudioAttributesGroups = NULL;
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jobjectArray jAudioAttributes = NULL;
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jobject jAudioAttribute = NULL;
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jstring jName = NULL;
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jint jStrategyId = NULL;
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jint numAttributesGroups;
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size_t indexGroup = 0;
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jName = env->NewStringUTF(strategy.getName().c_str());
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jStrategyId = static_cast<jint>(strategy.getId());
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// Audio Attributes Group array
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std::map<int, std::vector<AudioAttributes> > groups;
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for (const auto &attr : strategy.getAudioAttributes()) {
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int attrGroupId = attr.getGroupId();
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groups[attrGroupId].push_back(attr);
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}
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numAttributesGroups = groups.size();
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jAudioAttributesGroups = env->NewObjectArray(numAttributesGroups, gAudioAttributesGroupClass, NULL);
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for (const auto &iter : groups) {
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std::vector<AudioAttributes> audioAttributesGroups = iter.second;
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jint numAttributes = audioAttributesGroups.size();
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jint jGroupId = iter.first;
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jint jLegacyStreamType = audioAttributesGroups.front().getStreamType();
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jStatus = JNIAudioAttributeHelper::getJavaArray(env, &jAudioAttributes, numAttributes);
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if (jStatus != (jint)AUDIO_JAVA_SUCCESS) {
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goto exit;
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}
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for (size_t j = 0; j < static_cast<size_t>(numAttributes); j++) {
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auto attributes = audioAttributesGroups[j].getAttributes();
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jStatus = JNIAudioAttributeHelper::nativeToJava(env, &jAudioAttribute, attributes);
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if (jStatus != AUDIO_JAVA_SUCCESS) {
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goto exit;
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}
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env->SetObjectArrayElement(jAudioAttributes, j, jAudioAttribute);
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}
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jobject jAudioAttributesGroup = env->NewObject(gAudioAttributesGroupClass,
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gAudioAttributesGroupCstor,
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jGroupId,
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jLegacyStreamType,
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jAudioAttributes);
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env->SetObjectArrayElement(jAudioAttributesGroups, indexGroup++, jAudioAttributesGroup);
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if (jAudioAttributes != NULL) {
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env->DeleteLocalRef(jAudioAttributes);
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jAudioAttributes = NULL;
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}
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if (jAudioAttribute != NULL) {
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env->DeleteLocalRef(jAudioAttribute);
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jAudioAttribute = NULL;
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}
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if (jAudioAttributesGroup != NULL) {
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env->DeleteLocalRef(jAudioAttributesGroup);
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jAudioAttributesGroup = NULL;
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}
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}
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*jAudioStrategy = env->NewObject(gAudioProductStrategyClass, gAudioProductStrategyCstor,
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jName,
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jStrategyId,
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jAudioAttributesGroups);
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exit:
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if (jAudioAttributes != NULL) {
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env->DeleteLocalRef(jAudioAttributes);
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}
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if (jAudioAttribute != NULL) {
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env->DeleteLocalRef(jAudioAttribute);
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jAudioAttribute = NULL;
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}
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if (jAudioAttributesGroups != NULL) {
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env->DeleteLocalRef(jAudioAttributesGroups);
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}
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if (jName != NULL) {
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env->DeleteLocalRef(jName);
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}
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return jStatus;
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}
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static jint
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android_media_AudioSystem_listAudioProductStrategies(JNIEnv *env, jobject clazz,
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jobject jStrategies)
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{
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if (env == NULL) {
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return AUDIO_JAVA_DEAD_OBJECT;
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}
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if (jStrategies == NULL) {
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ALOGE("listAudioProductStrategies NULL AudioProductStrategies");
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return (jint)AUDIO_JAVA_BAD_VALUE;
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}
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if (!env->IsInstanceOf(jStrategies, gArrayListClass)) {
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ALOGE("listAudioProductStrategies not an arraylist");
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return (jint)AUDIO_JAVA_BAD_VALUE;
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}
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status_t status;
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AudioProductStrategyVector strategies;
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jint jStatus;
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jobject jStrategy = NULL;
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status = AudioSystem::listAudioProductStrategies(strategies);
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if (status != NO_ERROR) {
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ALOGE("AudioSystem::listAudioProductStrategies error %d", status);
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return nativeToJavaStatus(status);
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}
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for (const auto &strategy : strategies) {
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jStatus = convertAudioProductStrategiesFromNative(env, &jStrategy, strategy);
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if (jStatus != AUDIO_JAVA_SUCCESS) {
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goto exit;
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}
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env->CallBooleanMethod(jStrategies, gArrayListMethods.add, jStrategy);
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}
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exit:
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if (jStrategy != NULL) {
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env->DeleteLocalRef(jStrategy);
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}
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return jStatus;
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}
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/*
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* JNI registration.
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*/
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static const JNINativeMethod gMethods[] = {
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{"native_list_audio_product_strategies", "(Ljava/util/ArrayList;)I",
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(void *)android_media_AudioSystem_listAudioProductStrategies},
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};
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int register_android_media_AudioProductStrategies(JNIEnv *env)
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{
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jclass arrayListClass = FindClassOrDie(env, "java/util/ArrayList");
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gArrayListClass = MakeGlobalRefOrDie(env, arrayListClass);
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gArrayListMethods.add = GetMethodIDOrDie(env, arrayListClass, "add", "(Ljava/lang/Object;)Z");
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gArrayListMethods.toArray = GetMethodIDOrDie(env, arrayListClass,
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"toArray", "()[Ljava/lang/Object;");
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jclass audioProductStrategyClass = FindClassOrDie(env, kAudioProductStrategyClassPathName);
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gAudioProductStrategyClass = MakeGlobalRefOrDie(env, audioProductStrategyClass);
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gAudioProductStrategyCstor = GetMethodIDOrDie(
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env, audioProductStrategyClass, "<init>",
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"(Ljava/lang/String;I[Landroid/media/audiopolicy/AudioProductStrategy$AudioAttributesGroup;)V");
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gAudioProductStrategyFields.mAudioAttributesGroups = GetFieldIDOrDie(
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env, audioProductStrategyClass, "mAudioAttributesGroups",
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"[Landroid/media/audiopolicy/AudioProductStrategy$AudioAttributesGroup;");
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gAudioProductStrategyFields.mName = GetFieldIDOrDie(
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env, audioProductStrategyClass, "mName", "Ljava/lang/String;");
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gAudioProductStrategyFields.mId = GetFieldIDOrDie(
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env, audioProductStrategyClass, "mId", "I");
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jclass audioAttributesGroupClass = FindClassOrDie(env, kAudioAttributesGroupsClassPathName);
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gAudioAttributesGroupClass = MakeGlobalRefOrDie(env, audioAttributesGroupClass);
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gAudioAttributesGroupCstor = GetMethodIDOrDie(env, audioAttributesGroupClass, "<init>",
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"(II[Landroid/media/AudioAttributes;)V");
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gAudioAttributesGroupsFields.mVolumeGroupId = GetFieldIDOrDie(
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env, audioAttributesGroupClass, "mVolumeGroupId", "I");
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gAudioAttributesGroupsFields.mLegacyStreamType = GetFieldIDOrDie(
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env, audioAttributesGroupClass, "mLegacyStreamType", "I");
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gAudioAttributesGroupsFields.mAudioAttributes = GetFieldIDOrDie(
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env, audioAttributesGroupClass, "mAudioAttributes",
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"[Landroid/media/AudioAttributes;");
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env->DeleteLocalRef(audioProductStrategyClass);
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env->DeleteLocalRef(audioAttributesGroupClass);
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return RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods));
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}
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