| /* |
| * Copyright 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. |
| */ |
| |
| #ifndef ANDROID_JAUDIOATTRIBUTES_H |
| #define ANDROID_JAUDIOATTRIBUTES_H |
| |
| #include <jni.h> |
| #include <system/audio.h> |
| |
| namespace android { |
| |
| class JAudioAttributes { |
| public: |
| /* Creates a Java AudioAttributes object. */ |
| static jobject createAudioAttributesObj(JNIEnv *env, |
| const audio_attributes_t* pAttributes, |
| audio_stream_type_t streamType) { |
| |
| jclass jBuilderCls = env->FindClass("android/media/AudioAttributes$Builder"); |
| jmethodID jBuilderCtor = env->GetMethodID(jBuilderCls, "<init>", "()V"); |
| jobject jBuilderObj = env->NewObject(jBuilderCls, jBuilderCtor); |
| |
| if (pAttributes != NULL) { |
| // If pAttributes is not null, streamType is ignored. |
| jmethodID jSetUsage = env->GetMethodID( |
| jBuilderCls, "setUsage", "(I)Landroid/media/AudioAttributes$Builder;"); |
| jBuilderObj = env->CallObjectMethod(jBuilderObj, jSetUsage, pAttributes->usage); |
| |
| jmethodID jSetContentType = env->GetMethodID(jBuilderCls, "setContentType", |
| "(I)Landroid/media/AudioAttributes$Builder;"); |
| jBuilderObj = env->CallObjectMethod(jBuilderObj, jSetContentType, |
| pAttributes->content_type); |
| |
| // TODO: Java AudioAttributes.Builder.setCapturePreset() is systemApi and hidden. |
| // Can we use this method? |
| // jmethodID jSetCapturePreset = env->GetMethodID(jBuilderCls, "setCapturePreset", |
| // "(I)Landroid/media/AudioAttributes$Builder;"); |
| // jBuilderObj = env->CallObjectMethod(jBuilderObj, jSetCapturePreset, |
| // pAttributes->source); |
| |
| jmethodID jSetFlags = env->GetMethodID(jBuilderCls, "setFlags", |
| "(I)Landroid/media/AudioAttributes$Builder;"); |
| jBuilderObj = env->CallObjectMethod(jBuilderObj, jSetFlags, pAttributes->flags); |
| |
| // TODO: Handle the 'tags' (char[] to HashSet<String>). |
| // How to parse the char[]? Is there any example of it? |
| // Also, the addTags() method is hidden. |
| } else { |
| // Call AudioAttributes.Builder.setLegacyStreamType().build() |
| jmethodID jSetLegacyStreamType = env->GetMethodID(jBuilderCls, "setLegacyStreamType", |
| "(I)Landroid/media/AudioAttributes$Builder;"); |
| jBuilderObj = env->CallObjectMethod(jBuilderObj, jSetLegacyStreamType, streamType); |
| } |
| |
| jmethodID jBuild = env->GetMethodID(jBuilderCls, "build", |
| "()Landroid/media/AudioAttributes;"); |
| return env->CallObjectMethod(jBuilderObj, jBuild); |
| } |
| |
| }; |
| |
| } // namespace android |
| |
| #endif // ANDROID_JAUDIOATTRIBUTES_H |