audio: Add example HAL implementation
This is partial implementation of the example V7.0 audio HAL
which passes VTS tests. Note that the 'core' part
of the HAL (IDevice/IStream) isn't implemented yet.
It passes VTS because it doesn't provide any devices
(modules) and the audio HAL isn't the 'default' instance.
Bug: 142480271
Test: atest VtsHalAudioV7_0TargetTest
atest VtsHalAudioEffectV7_0TargetTest
Change-Id: Ie3dd62c5db1cdb5534df4dd7f326c4c8776bf3c4
diff --git a/audio/common/7.0/example/LoudnessEnhancerEffect.cpp b/audio/common/7.0/example/LoudnessEnhancerEffect.cpp
new file mode 100644
index 0000000..38269b3
--- /dev/null
+++ b/audio/common/7.0/example/LoudnessEnhancerEffect.cpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2020 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_TAG "EffectsFactory7.0"
+#include <log/log.h>
+
+#include "LoudnessEnhancerEffect.h"
+
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using namespace ::android::hardware::audio::common::V7_0;
+
+namespace android::hardware::audio::effect::V7_0::implementation {
+
+const EffectDescriptor& LoudnessEnhancerEffect::getDescriptor() {
+ // Note: for VTS tests only 'type' and 'uuid' fields are required.
+ // The actual implementation must provide meaningful values
+ // for all fields of the descriptor.
+ static const EffectDescriptor descriptor = {
+ .type =
+ {// Same UUID as AudioEffect.EFFECT_TYPE_LOUDNESS_ENHANCER in Java.
+ 0xfe3199be, 0xaed0, 0x413f, 0x87bb,
+ std::array<uint8_t, 6>{{0x11, 0x26, 0x0e, 0xb6, 0x3c, 0xf1}}},
+ .uuid = {0, 0, 0, 2, std::array<uint8_t, 6>{{0, 0, 0, 0, 0, 0}}}};
+ return descriptor;
+} // namespace android::hardware::audio::effect::V7_0::implementation
+
+LoudnessEnhancerEffect::LoudnessEnhancerEffect() : mEffect(new Effect(getDescriptor())) {}
+
+Return<Result> LoudnessEnhancerEffect::setTargetGain(int32_t targetGainMb) {
+ mTargetGainMb = targetGainMb;
+ return Result::OK;
+}
+
+Return<void> LoudnessEnhancerEffect::getTargetGain(getTargetGain_cb _hidl_cb) {
+ _hidl_cb(Result::OK, mTargetGainMb);
+ return Void();
+}
+
+} // namespace android::hardware::audio::effect::V7_0::implementation