PreProcessing : Add libeffect pre-processing effects implementation
Bug: 258124419
Test: atest VtsHalAECTargetTest
Test: atest VtsHalAGC1TargetTest
Test: atest VtsHalAGC2TargetTest
Test: atest VtsHalNSTargetTest
Change-Id: Idfecf978b87419f54f1c930434821ba2a348d9dd
diff --git a/media/libeffects/preprocessing/aidl/PreProcessingContext.h b/media/libeffects/preprocessing/aidl/PreProcessingContext.h
new file mode 100644
index 0000000..9ba1bbe
--- /dev/null
+++ b/media/libeffects/preprocessing/aidl/PreProcessingContext.h
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2023 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 <android-base/logging.h>
+#include <android-base/thread_annotations.h>
+#include <audio_processing.h>
+#include <unordered_map>
+
+#include "PreProcessingTypes.h"
+#include "effect-impl/EffectContext.h"
+
+namespace aidl::android::hardware::audio::effect {
+
+enum PreProcEffectState {
+ PRE_PROC_STATE_UNINITIALIZED,
+ PRE_PROC_STATE_INITIALIZED,
+ PRE_PROC_STATE_ACTIVE,
+};
+
+class PreProcessingContext final : public EffectContext {
+ public:
+ PreProcessingContext(int statusDepth, const Parameter::Common& common,
+ const PreProcessingEffectType& type)
+ : EffectContext(statusDepth, common), mType(type) {
+ LOG(DEBUG) << __func__ << type;
+ mState = PRE_PROC_STATE_UNINITIALIZED;
+ }
+ ~PreProcessingContext() override { LOG(DEBUG) << __func__; }
+
+ RetCode init(const Parameter::Common& common);
+ RetCode deInit();
+
+ PreProcessingEffectType getPreProcessingType() const { return mType; }
+
+ RetCode enable();
+ RetCode disable();
+
+ RetCode setCommon(const Parameter::Common& common) override;
+ void updateConfigs(const Parameter::Common& common);
+
+ RetCode setAcousticEchoCancelerEchoDelay(int echoDelayUs);
+ int getAcousticEchoCancelerEchoDelay() const;
+ RetCode setAcousticEchoCancelerMobileMode(bool mobileMode);
+ bool getAcousticEchoCancelerMobileMode() const;
+
+ RetCode setAutomaticGainControlV1TargetPeakLevel(int targetPeakLevel);
+ int getAutomaticGainControlV1TargetPeakLevel() const;
+ RetCode setAutomaticGainControlV1MaxCompressionGain(int maxCompressionGain);
+ int getAutomaticGainControlV1MaxCompressionGain() const;
+ RetCode setAutomaticGainControlV1EnableLimiter(bool enableLimiter);
+ bool getAutomaticGainControlV1EnableLimiter() const;
+
+ RetCode setAutomaticGainControlV2DigitalGain(int gain);
+ int getAutomaticGainControlV2DigitalGain() const;
+ RetCode setAutomaticGainControlV2LevelEstimator(
+ AutomaticGainControlV2::LevelEstimator levelEstimator);
+ AutomaticGainControlV2::LevelEstimator getAutomaticGainControlV2LevelEstimator() const;
+ RetCode setAutomaticGainControlV2SaturationMargin(int saturationMargin);
+ int getAutomaticGainControlV2SaturationMargin() const;
+
+ RetCode setNoiseSuppressionLevel(NoiseSuppression::Level level);
+ NoiseSuppression::Level getNoiseSuppressionLevel() const;
+
+ IEffect::Status lvmProcess(float* in, float* out, int samples);
+
+ private:
+ static constexpr inline int kAgcDefaultTargetLevel = 3;
+ static constexpr inline int kAgcDefaultCompGain = 9;
+ static constexpr inline bool kAgcDefaultLimiter = true;
+ static constexpr inline webrtc::AudioProcessing::Config::NoiseSuppression::Level
+ kNsDefaultLevel = webrtc::AudioProcessing::Config::NoiseSuppression::kModerate;
+
+ std::mutex mMutex;
+ const PreProcessingEffectType mType;
+ PreProcEffectState mState; // current state
+
+ // handle on webRTC audio processing module (APM)
+ rtc::scoped_refptr<webrtc::AudioProcessing> mAudioProcessingModule GUARDED_BY(mMutex);
+
+ int mEnabledMsk GUARDED_BY(mMutex); // bit field containing IDs of enabled pre processors
+ int mProcessedMsk GUARDED_BY(mMutex); // bit field containing IDs of pre processors already
+ // processed in current round
+ int mRevEnabledMsk GUARDED_BY(mMutex); // bit field containing IDs of enabled pre processors
+ // with reverse channel
+ int mRevProcessedMsk GUARDED_BY(mMutex); // bit field containing IDs of pre processors with
+ // reverse channel already processed in current round
+
+ webrtc::StreamConfig mInputConfig; // input stream configuration
+ webrtc::StreamConfig mOutputConfig; // output stream configuration
+
+ // Acoustic Echo Canceler
+ int mEchoDelayUs = 0;
+ bool mMobileMode = false;
+
+ // Automatic Gain Control V1
+ int mTargetPeakLevel = 0;
+ int mMaxCompressionGain = 0;
+ bool mEnableLimiter = false;
+
+ // Automatic Gain Control V2
+ int mDigitalGain = 0;
+ AutomaticGainControlV2::LevelEstimator mLevelEstimator =
+ AutomaticGainControlV2::LevelEstimator::RMS;
+ int mSaturationMargin = 2;
+
+ // NoiseSuppression
+ NoiseSuppression::Level mLevel = NoiseSuppression::Level::LOW;
+};
+
+} // namespace aidl::android::hardware::audio::effect