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 #include "core_jni_helpers.h"
18 #include "android_media_AudioErrors.h"
19 #include "media/AudioEffect.h"
20
21 using namespace android;
22
23 static jclass gAudioEffectDescriptorClass;
24 static jmethodID gAudioEffectDescriptorCstor;
25
26 namespace android {
27
audioEffectDescriptorClass()28 jclass audioEffectDescriptorClass() {
29 return gAudioEffectDescriptorClass;
30 }
31
convertAudioEffectDescriptorFromNative(JNIEnv * env,jobject * jDescriptor,const effect_descriptor_t * nDescriptor)32 jint convertAudioEffectDescriptorFromNative(JNIEnv* env, jobject* jDescriptor,
33 const effect_descriptor_t* nDescriptor)
34 {
35 jstring jType;
36 jstring jUuid;
37 jstring jConnect;
38 jstring jName;
39 jstring jImplementor;
40 char str[EFFECT_STRING_LEN_MAX];
41
42 if ((nDescriptor->flags & EFFECT_FLAG_TYPE_MASK)
43 == EFFECT_FLAG_TYPE_AUXILIARY) {
44 jConnect = env->NewStringUTF("Auxiliary");
45 } else if ((nDescriptor->flags & EFFECT_FLAG_TYPE_MASK)
46 == EFFECT_FLAG_TYPE_INSERT) {
47 jConnect = env->NewStringUTF("Insert");
48 } else if ((nDescriptor->flags & EFFECT_FLAG_TYPE_MASK)
49 == EFFECT_FLAG_TYPE_PRE_PROC) {
50 jConnect = env->NewStringUTF("Pre Processing");
51 } else {
52 return (jint) AUDIO_JAVA_BAD_VALUE;
53 }
54
55 AudioEffect::guidToString(&nDescriptor->type, str, EFFECT_STRING_LEN_MAX);
56 jType = env->NewStringUTF(str);
57
58 AudioEffect::guidToString(&nDescriptor->uuid, str, EFFECT_STRING_LEN_MAX);
59 jUuid = env->NewStringUTF(str);
60
61 jName = env->NewStringUTF(nDescriptor->name);
62 jImplementor = env->NewStringUTF(nDescriptor->implementor);
63
64 *jDescriptor = env->NewObject(gAudioEffectDescriptorClass,
65 gAudioEffectDescriptorCstor,
66 jType,
67 jUuid,
68 jConnect,
69 jName,
70 jImplementor);
71 env->DeleteLocalRef(jType);
72 env->DeleteLocalRef(jUuid);
73 env->DeleteLocalRef(jConnect);
74 env->DeleteLocalRef(jName);
75 env->DeleteLocalRef(jImplementor);
76
77 return (jint) AUDIO_JAVA_SUCCESS;
78 }
79
convertAudioEffectDescriptorVectorFromNative(JNIEnv * env,jobjectArray * jDescriptors,const std::vector<effect_descriptor_t> & nDescriptors)80 void convertAudioEffectDescriptorVectorFromNative(JNIEnv *env, jobjectArray *jDescriptors,
81 const std::vector<effect_descriptor_t>& nDescriptors)
82 {
83 jobjectArray temp = env->NewObjectArray(nDescriptors.size(),
84 audioEffectDescriptorClass(), NULL);
85 size_t actualSize = 0;
86 for (size_t i = 0; i < nDescriptors.size(); i++) {
87 jobject jdesc;
88 if (convertAudioEffectDescriptorFromNative(env,
89 &jdesc,
90 &nDescriptors[i])
91 != AUDIO_JAVA_SUCCESS) {
92 continue;
93 }
94
95 env->SetObjectArrayElement(temp, actualSize++, jdesc);
96 env->DeleteLocalRef(jdesc);
97 }
98
99 *jDescriptors = env->NewObjectArray(actualSize, audioEffectDescriptorClass(), NULL);
100 for (size_t i = 0; i < actualSize; i++) {
101 env->SetObjectArrayElement(*jDescriptors,
102 i,
103 env->GetObjectArrayElement(temp, i));
104 }
105 env->DeleteLocalRef(temp);
106 }
107
108 }; // namespace android
109
register_android_media_AudioEffectDescriptor(JNIEnv * env)110 int register_android_media_AudioEffectDescriptor(JNIEnv* env) {
111 jclass audioEffectDescriptorClass =
112 FindClassOrDie(env, "android/media/audiofx/AudioEffect$Descriptor");
113 gAudioEffectDescriptorClass =
114 MakeGlobalRefOrDie(env, audioEffectDescriptorClass);
115 gAudioEffectDescriptorCstor =
116 GetMethodIDOrDie(env,
117 audioEffectDescriptorClass,
118 "<init>",
119 "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V");
120
121 env->DeleteLocalRef(audioEffectDescriptorClass);
122 return 0;
123 }
124