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/*
* 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};
}
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));
}
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