| /* |
| * Copyright (C) 2018 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 "AudioAttributes-JNI" |
| |
| #include <inttypes.h> |
| #include <jni.h> |
| #include <nativehelper/JNIHelp.h> |
| #include "core_jni_helpers.h" |
| |
| #include <utils/Log.h> |
| #include <vector> |
| |
| #include <nativehelper/ScopedLocalRef.h> |
| #include <nativehelper/ScopedUtfChars.h> |
| |
| #include "android_media_AudioAttributes.h" |
| #include "android_media_AudioErrors.h" |
| |
| // ---------------------------------------------------------------------------- |
| |
| using namespace android; |
| |
| // ---------------------------------------------------------------------------- |
| static const char* const kClassPathName = "android/media/AudioAttributes"; |
| |
| static jclass gAudioAttributesClass; |
| static struct { |
| jfieldID mUsage; // AudioAttributes.mUsage |
| jfieldID mSource; // AudioAttributes.mSource |
| jfieldID mContentType; // AudioAttributes.mContentType |
| jfieldID mFlags; // AudioAttributes.mFlags |
| jfieldID mFormattedTags; // AudioAttributes.mFormattedTags |
| } gAudioAttributesFields; |
| |
| static jclass gAudioAttributesBuilderClass; |
| static jmethodID gAudioAttributesBuilderCstor; |
| static struct { |
| jmethodID build; |
| jmethodID setUsage; |
| jmethodID setInternalCapturePreset; |
| jmethodID setContentType; |
| jmethodID setFlags; |
| jmethodID addTag; |
| } gAudioAttributesBuilderMethods; |
| |
| |
| static jint nativeAudioAttributesFromJavaAudioAttributes( |
| JNIEnv* env, jobject jAudioAttributes, audio_attributes_t *aa) |
| { |
| if (env == nullptr) { |
| return AUDIO_JAVA_DEAD_OBJECT; |
| } |
| if (jAudioAttributes == nullptr) { |
| ALOGE("Invalid AudioAttributes java object"); |
| return (jint)AUDIO_JAVA_BAD_VALUE; |
| } |
| if (!env->IsInstanceOf(jAudioAttributes, gAudioAttributesClass)) { |
| return (jint)AUDIO_JAVA_BAD_VALUE; |
| } |
| const jstring jtags = |
| (jstring) env->GetObjectField(jAudioAttributes, gAudioAttributesFields.mFormattedTags); |
| if (jtags == nullptr) { |
| return AUDIO_JAVA_NO_INIT; |
| } |
| const char* tags = env->GetStringUTFChars(jtags, NULL); |
| // copying array size -1, char array for tags was calloc'd, no need to NULL-terminate it |
| strncpy(aa->tags, tags, AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1); |
| env->ReleaseStringUTFChars(jtags, tags); |
| |
| // Record ? |
| aa->source = (audio_source_t) env->GetIntField(jAudioAttributes, |
| gAudioAttributesFields.mSource); |
| // Track ? |
| aa->usage = (audio_usage_t) env->GetIntField(jAudioAttributes, gAudioAttributesFields.mUsage); |
| |
| aa->content_type = |
| (audio_content_type_t) env->GetIntField(jAudioAttributes, |
| gAudioAttributesFields.mContentType); |
| |
| aa->flags = (audio_flags_mask_t)env->GetIntField(jAudioAttributes, |
| gAudioAttributesFields.mFlags); |
| |
| ALOGV("AudioAttributes for usage=%d content=%d source=%d tags=%s flags=%08x tags=%s", |
| aa->usage, aa->content_type, aa->source, aa->tags, aa->flags, aa->tags); |
| return (jint)AUDIO_JAVA_SUCCESS; |
| } |
| |
| static jint nativeAudioAttributesToJavaAudioAttributes( |
| JNIEnv* env, jobject *jAudioAttributes, const audio_attributes_t &attributes) |
| { |
| ScopedLocalRef<jobject> jAttributeBuilder(env, env->NewObject(gAudioAttributesBuilderClass, |
| gAudioAttributesBuilderCstor)); |
| if (jAttributeBuilder.get() == nullptr) { |
| return (jint)AUDIO_JAVA_ERROR; |
| } |
| env->CallObjectMethod(jAttributeBuilder.get(), |
| gAudioAttributesBuilderMethods.setUsage, |
| attributes.usage); |
| env->CallObjectMethod(jAttributeBuilder.get(), |
| gAudioAttributesBuilderMethods.setInternalCapturePreset, |
| attributes.source); |
| env->CallObjectMethod(jAttributeBuilder.get(), |
| gAudioAttributesBuilderMethods.setContentType, |
| attributes.content_type); |
| env->CallObjectMethod(jAttributeBuilder.get(), |
| gAudioAttributesBuilderMethods.setFlags, |
| attributes.flags); |
| env->CallObjectMethod(jAttributeBuilder.get(), |
| gAudioAttributesBuilderMethods.addTag, |
| env->NewStringUTF(attributes.tags)); |
| |
| *jAudioAttributes = env->CallObjectMethod(jAttributeBuilder.get(), |
| gAudioAttributesBuilderMethods.build); |
| return (jint)AUDIO_JAVA_SUCCESS; |
| } |
| |
| // ---------------------------------------------------------------------------- |
| JNIAudioAttributeHelper::UniqueAaPtr JNIAudioAttributeHelper::makeUnique() |
| { |
| audio_attributes_t *aa = new (calloc(1, sizeof(audio_attributes_t))) |
| audio_attributes_t{AUDIO_ATTRIBUTES_INITIALIZER}; |
| return UniqueAaPtr{aa, free}; |
| } |
| |
| jint JNIAudioAttributeHelper::nativeFromJava(JNIEnv* env, jobject jAudioAttributes, |
| audio_attributes_t *paa) |
| { |
| return nativeAudioAttributesFromJavaAudioAttributes(env, jAudioAttributes, paa); |
| } |
| |
| jint JNIAudioAttributeHelper::nativeToJava( |
| JNIEnv* env, jobject *jAudioAttributes, const audio_attributes_t &attributes) |
| { |
| return nativeAudioAttributesToJavaAudioAttributes(env, jAudioAttributes, attributes); |
| } |
| |
| jint JNIAudioAttributeHelper::getJavaArray( |
| JNIEnv* env, jobjectArray *jAudioAttributeArray, jint numAudioAttributes) |
| { |
| *jAudioAttributeArray = env->NewObjectArray(numAudioAttributes, gAudioAttributesClass, NULL); |
| return *jAudioAttributeArray == NULL? (jint)AUDIO_JAVA_ERROR : (jint)AUDIO_JAVA_SUCCESS; |
| } |
| |
| /* |
| * JNI registration. |
| */ |
| static const JNINativeMethod gMethods[] = { |
| // n/a |
| }; |
| |
| int register_android_media_AudioAttributes(JNIEnv *env) |
| { |
| jclass audioAttributesClass = FindClassOrDie(env, kClassPathName); |
| gAudioAttributesClass = MakeGlobalRefOrDie(env, audioAttributesClass); |
| gAudioAttributesFields.mUsage = GetFieldIDOrDie(env, audioAttributesClass, "mUsage", "I"); |
| gAudioAttributesFields.mSource = GetFieldIDOrDie(env, audioAttributesClass, "mSource", "I"); |
| gAudioAttributesFields.mContentType = |
| GetFieldIDOrDie(env, audioAttributesClass, "mContentType", "I"); |
| gAudioAttributesFields.mFlags = GetFieldIDOrDie(env, audioAttributesClass, "mFlags", "I"); |
| gAudioAttributesFields.mFormattedTags = |
| GetFieldIDOrDie(env, audioAttributesClass, "mFormattedTags", "Ljava/lang/String;"); |
| |
| jclass audioAttributesBuilderClass = FindClassOrDie( |
| env, "android/media/AudioAttributes$Builder"); |
| gAudioAttributesBuilderClass = MakeGlobalRefOrDie(env, audioAttributesBuilderClass); |
| gAudioAttributesBuilderCstor = GetMethodIDOrDie( |
| env, audioAttributesBuilderClass, "<init>", "()V"); |
| gAudioAttributesBuilderMethods.build = GetMethodIDOrDie( |
| env, audioAttributesBuilderClass, "build", "()Landroid/media/AudioAttributes;"); |
| gAudioAttributesBuilderMethods.setUsage = GetMethodIDOrDie( |
| env, audioAttributesBuilderClass, "setUsage", |
| "(I)Landroid/media/AudioAttributes$Builder;"); |
| gAudioAttributesBuilderMethods.setInternalCapturePreset = GetMethodIDOrDie( |
| env, audioAttributesBuilderClass, "setInternalCapturePreset", |
| "(I)Landroid/media/AudioAttributes$Builder;"); |
| gAudioAttributesBuilderMethods.setContentType = GetMethodIDOrDie( |
| env, audioAttributesBuilderClass, "setContentType", |
| "(I)Landroid/media/AudioAttributes$Builder;"); |
| gAudioAttributesBuilderMethods.setFlags = GetMethodIDOrDie( |
| env, audioAttributesBuilderClass, "setFlags", |
| "(I)Landroid/media/AudioAttributes$Builder;"); |
| gAudioAttributesBuilderMethods.addTag = GetMethodIDOrDie( |
| env, audioAttributesBuilderClass, "addTag", |
| "(Ljava/lang/String;)Landroid/media/AudioAttributes$Builder;"); |
| |
| env->DeleteLocalRef(audioAttributesClass); |
| |
| return RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods)); |
| } |