AIDL effect: Add effect AIDL implementationi and vts test
Bug: 238913361
Test: atest VtsHalAudioEffectTargetTest; atest VtsHalAudioEffectFactoryTargetTest
Merged-In: If8000b7396360996bdfb8eb269bc3de543871673
Change-Id: If8000b7396360996bdfb8eb269bc3de543871673
diff --git a/audio/aidl/default/include/effect-impl/EffectThread.h b/audio/aidl/default/include/effect-impl/EffectThread.h
new file mode 100644
index 0000000..e831cea
--- /dev/null
+++ b/audio/aidl/default/include/effect-impl/EffectThread.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+#include <atomic>
+#include <string>
+#include <thread>
+
+#include <android-base/thread_annotations.h>
+#include <system/thread_defs.h>
+
+namespace aidl::android::hardware::audio::effect {
+
+enum class RetCode { SUCCESS, ERROR };
+
+std::string toString(RetCode& code);
+
+class EffectThread {
+ public:
+ // default priority is same as HIDL: ANDROID_PRIORITY_URGENT_AUDIO
+ EffectThread();
+ virtual ~EffectThread();
+
+ // called by effect implementation.
+ RetCode create(const std::string& name, const int priority = ANDROID_PRIORITY_URGENT_AUDIO);
+ RetCode destroy();
+ RetCode start();
+ RetCode stop();
+
+ // Will call process() in a loop if the thread is running.
+ void threadLoop();
+
+ // User of EffectThread must implement the effect processing logic in this method.
+ virtual void process() = 0;
+ const int MAX_TASK_COMM_LEN = 15;
+
+ private:
+ std::mutex mMutex;
+ std::condition_variable mCv;
+ bool mExit GUARDED_BY(mMutex) = false;
+ bool mStop GUARDED_BY(mMutex) = true;
+ std::thread mThread;
+ int mPriority;
+ std::string mName;
+};
+} // namespace aidl::android::hardware::audio::effect