François Gaffie | b469128 | 2018-07-09 13:07:32 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | //#define LOG_NDEBUG 0 |
| 18 | |
| 19 | #define LOG_TAG "AudioAttributes-JNI" |
| 20 | |
| 21 | #include <inttypes.h> |
| 22 | #include <jni.h> |
| 23 | #include <nativehelper/JNIHelp.h> |
| 24 | #include "core_jni_helpers.h" |
| 25 | |
| 26 | #include <utils/Log.h> |
| 27 | #include <vector> |
| 28 | |
| 29 | #include <nativehelper/ScopedLocalRef.h> |
| 30 | #include <nativehelper/ScopedUtfChars.h> |
| 31 | |
| 32 | #include "android_media_AudioAttributes.h" |
| 33 | #include "android_media_AudioErrors.h" |
| 34 | |
| 35 | // ---------------------------------------------------------------------------- |
| 36 | |
| 37 | using namespace android; |
| 38 | |
| 39 | // ---------------------------------------------------------------------------- |
| 40 | static const char* const kClassPathName = "android/media/AudioAttributes"; |
| 41 | |
| 42 | static jclass gAudioAttributesClass; |
| 43 | static struct { |
| 44 | jfieldID mUsage; // AudioAttributes.mUsage |
| 45 | jfieldID mSource; // AudioAttributes.mSource |
| 46 | jfieldID mContentType; // AudioAttributes.mContentType |
| 47 | jfieldID mFlags; // AudioAttributes.mFlags |
| 48 | jfieldID mFormattedTags; // AudioAttributes.mFormattedTags |
| 49 | } gAudioAttributesFields; |
| 50 | |
| 51 | static jclass gAudioAttributesBuilderClass; |
| 52 | static jmethodID gAudioAttributesBuilderCstor; |
| 53 | static struct { |
| 54 | jmethodID build; |
| 55 | jmethodID setUsage; |
| 56 | jmethodID setInternalCapturePreset; |
| 57 | jmethodID setContentType; |
| 58 | jmethodID setFlags; |
| 59 | jmethodID addTag; |
| 60 | } gAudioAttributesBuilderMethods; |
| 61 | |
| 62 | |
| 63 | static jint nativeAudioAttributesFromJavaAudioAttributes( |
| 64 | JNIEnv* env, jobject jAudioAttributes, audio_attributes_t *aa) |
| 65 | { |
| 66 | if (env == nullptr) { |
| 67 | return AUDIO_JAVA_DEAD_OBJECT; |
| 68 | } |
| 69 | if (jAudioAttributes == nullptr) { |
| 70 | ALOGE("Invalid AudioAttributes java object"); |
| 71 | return (jint)AUDIO_JAVA_BAD_VALUE; |
| 72 | } |
| 73 | if (!env->IsInstanceOf(jAudioAttributes, gAudioAttributesClass)) { |
| 74 | return (jint)AUDIO_JAVA_BAD_VALUE; |
| 75 | } |
| 76 | const jstring jtags = |
| 77 | (jstring) env->GetObjectField(jAudioAttributes, gAudioAttributesFields.mFormattedTags); |
| 78 | if (jtags == nullptr) { |
| 79 | return AUDIO_JAVA_NO_INIT; |
| 80 | } |
| 81 | const char* tags = env->GetStringUTFChars(jtags, NULL); |
| 82 | // copying array size -1, char array for tags was calloc'd, no need to NULL-terminate it |
| 83 | strncpy(aa->tags, tags, AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1); |
| 84 | env->ReleaseStringUTFChars(jtags, tags); |
| 85 | |
| 86 | // Record ? |
| 87 | aa->source = (audio_source_t) env->GetIntField(jAudioAttributes, |
| 88 | gAudioAttributesFields.mSource); |
| 89 | // Track ? |
| 90 | aa->usage = (audio_usage_t) env->GetIntField(jAudioAttributes, gAudioAttributesFields.mUsage); |
| 91 | |
| 92 | aa->content_type = |
| 93 | (audio_content_type_t) env->GetIntField(jAudioAttributes, |
| 94 | gAudioAttributesFields.mContentType); |
| 95 | |
| 96 | aa->flags = (audio_flags_mask_t)env->GetIntField(jAudioAttributes, |
| 97 | gAudioAttributesFields.mFlags); |
| 98 | |
| 99 | ALOGV("AudioAttributes for usage=%d content=%d source=%d tags=%s flags=%08x tags=%s", |
| 100 | aa->usage, aa->content_type, aa->source, aa->tags, aa->flags, aa->tags); |
| 101 | return (jint)AUDIO_JAVA_SUCCESS; |
| 102 | } |
| 103 | |
| 104 | static jint nativeAudioAttributesToJavaAudioAttributes( |
| 105 | JNIEnv* env, jobject *jAudioAttributes, const audio_attributes_t &attributes) |
| 106 | { |
| 107 | ScopedLocalRef<jobject> jAttributeBuilder(env, env->NewObject(gAudioAttributesBuilderClass, |
| 108 | gAudioAttributesBuilderCstor)); |
| 109 | if (jAttributeBuilder.get() == nullptr) { |
| 110 | return (jint)AUDIO_JAVA_ERROR; |
| 111 | } |
| 112 | env->CallObjectMethod(jAttributeBuilder.get(), |
| 113 | gAudioAttributesBuilderMethods.setUsage, |
| 114 | attributes.usage); |
| 115 | env->CallObjectMethod(jAttributeBuilder.get(), |
| 116 | gAudioAttributesBuilderMethods.setInternalCapturePreset, |
| 117 | attributes.source); |
| 118 | env->CallObjectMethod(jAttributeBuilder.get(), |
| 119 | gAudioAttributesBuilderMethods.setContentType, |
| 120 | attributes.content_type); |
| 121 | env->CallObjectMethod(jAttributeBuilder.get(), |
| 122 | gAudioAttributesBuilderMethods.setFlags, |
| 123 | attributes.flags); |
| 124 | env->CallObjectMethod(jAttributeBuilder.get(), |
| 125 | gAudioAttributesBuilderMethods.addTag, |
| 126 | env->NewStringUTF(attributes.tags)); |
| 127 | |
| 128 | *jAudioAttributes = env->CallObjectMethod(jAttributeBuilder.get(), |
| 129 | gAudioAttributesBuilderMethods.build); |
| 130 | return (jint)AUDIO_JAVA_SUCCESS; |
| 131 | } |
| 132 | |
| 133 | // ---------------------------------------------------------------------------- |
| 134 | JNIAudioAttributeHelper::UniqueAaPtr JNIAudioAttributeHelper::makeUnique() |
| 135 | { |
| 136 | audio_attributes_t *aa = new (calloc(1, sizeof(audio_attributes_t))) |
| 137 | audio_attributes_t{AUDIO_ATTRIBUTES_INITIALIZER}; |
George Burgess IV | 20d1896 | 2019-01-29 19:30:40 -0800 | [diff] [blame] | 138 | return UniqueAaPtr{aa}; |
François Gaffie | b469128 | 2018-07-09 13:07:32 +0200 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | jint JNIAudioAttributeHelper::nativeFromJava(JNIEnv* env, jobject jAudioAttributes, |
| 142 | audio_attributes_t *paa) |
| 143 | { |
| 144 | return nativeAudioAttributesFromJavaAudioAttributes(env, jAudioAttributes, paa); |
| 145 | } |
| 146 | |
| 147 | jint JNIAudioAttributeHelper::nativeToJava( |
| 148 | JNIEnv* env, jobject *jAudioAttributes, const audio_attributes_t &attributes) |
| 149 | { |
| 150 | return nativeAudioAttributesToJavaAudioAttributes(env, jAudioAttributes, attributes); |
| 151 | } |
| 152 | |
| 153 | jint JNIAudioAttributeHelper::getJavaArray( |
| 154 | JNIEnv* env, jobjectArray *jAudioAttributeArray, jint numAudioAttributes) |
| 155 | { |
| 156 | *jAudioAttributeArray = env->NewObjectArray(numAudioAttributes, gAudioAttributesClass, NULL); |
Greg Kaiser | 2df731cf | 2019-01-29 06:37:11 -0800 | [diff] [blame] | 157 | return *jAudioAttributeArray == NULL? (jint)AUDIO_JAVA_ERROR : (jint)AUDIO_JAVA_SUCCESS; |
François Gaffie | b469128 | 2018-07-09 13:07:32 +0200 | [diff] [blame] | 158 | } |
| 159 | |
| 160 | /* |
| 161 | * JNI registration. |
| 162 | */ |
| 163 | static const JNINativeMethod gMethods[] = { |
| 164 | // n/a |
| 165 | }; |
| 166 | |
| 167 | int register_android_media_AudioAttributes(JNIEnv *env) |
| 168 | { |
| 169 | jclass audioAttributesClass = FindClassOrDie(env, kClassPathName); |
| 170 | gAudioAttributesClass = MakeGlobalRefOrDie(env, audioAttributesClass); |
| 171 | gAudioAttributesFields.mUsage = GetFieldIDOrDie(env, audioAttributesClass, "mUsage", "I"); |
| 172 | gAudioAttributesFields.mSource = GetFieldIDOrDie(env, audioAttributesClass, "mSource", "I"); |
| 173 | gAudioAttributesFields.mContentType = |
| 174 | GetFieldIDOrDie(env, audioAttributesClass, "mContentType", "I"); |
| 175 | gAudioAttributesFields.mFlags = GetFieldIDOrDie(env, audioAttributesClass, "mFlags", "I"); |
| 176 | gAudioAttributesFields.mFormattedTags = |
| 177 | GetFieldIDOrDie(env, audioAttributesClass, "mFormattedTags", "Ljava/lang/String;"); |
| 178 | |
| 179 | jclass audioAttributesBuilderClass = FindClassOrDie( |
| 180 | env, "android/media/AudioAttributes$Builder"); |
| 181 | gAudioAttributesBuilderClass = MakeGlobalRefOrDie(env, audioAttributesBuilderClass); |
| 182 | gAudioAttributesBuilderCstor = GetMethodIDOrDie( |
| 183 | env, audioAttributesBuilderClass, "<init>", "()V"); |
| 184 | gAudioAttributesBuilderMethods.build = GetMethodIDOrDie( |
| 185 | env, audioAttributesBuilderClass, "build", "()Landroid/media/AudioAttributes;"); |
| 186 | gAudioAttributesBuilderMethods.setUsage = GetMethodIDOrDie( |
| 187 | env, audioAttributesBuilderClass, "setUsage", |
| 188 | "(I)Landroid/media/AudioAttributes$Builder;"); |
| 189 | gAudioAttributesBuilderMethods.setInternalCapturePreset = GetMethodIDOrDie( |
| 190 | env, audioAttributesBuilderClass, "setInternalCapturePreset", |
| 191 | "(I)Landroid/media/AudioAttributes$Builder;"); |
| 192 | gAudioAttributesBuilderMethods.setContentType = GetMethodIDOrDie( |
| 193 | env, audioAttributesBuilderClass, "setContentType", |
| 194 | "(I)Landroid/media/AudioAttributes$Builder;"); |
| 195 | gAudioAttributesBuilderMethods.setFlags = GetMethodIDOrDie( |
| 196 | env, audioAttributesBuilderClass, "setFlags", |
| 197 | "(I)Landroid/media/AudioAttributes$Builder;"); |
| 198 | gAudioAttributesBuilderMethods.addTag = GetMethodIDOrDie( |
| 199 | env, audioAttributesBuilderClass, "addTag", |
| 200 | "(Ljava/lang/String;)Landroid/media/AudioAttributes$Builder;"); |
| 201 | |
| 202 | env->DeleteLocalRef(audioAttributesClass); |
| 203 | |
| 204 | return RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods)); |
| 205 | } |