Downmix : Add libeffect implementation
Bug: 258124419
Test: atest VtsHalDownmixTargetTest
Change-Id: I557e8be886db8ea14aed5f41905012891d4e3812
diff --git a/media/libeffects/downmix/aidl/EffectDownmix.cpp b/media/libeffects/downmix/aidl/EffectDownmix.cpp
new file mode 100644
index 0000000..17d0736
--- /dev/null
+++ b/media/libeffects/downmix/aidl/EffectDownmix.cpp
@@ -0,0 +1,214 @@
+/*
+ * 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.
+ */
+
+#define LOG_TAG "AHAL_DownmixImpl"
+
+#include <android-base/logging.h>
+
+#include "EffectDownmix.h"
+
+using aidl::android::hardware::audio::effect::Descriptor;
+using aidl::android::hardware::audio::effect::DownmixImpl;
+using aidl::android::hardware::audio::effect::IEffect;
+using aidl::android::hardware::audio::effect::kDownmixImplUUID;
+using aidl::android::hardware::audio::effect::kDownmixTypeUUID;
+using aidl::android::media::audio::common::AudioUuid;
+
+extern "C" binder_exception_t createEffect(const AudioUuid* in_impl_uuid,
+ std::shared_ptr<IEffect>* instanceSpp) {
+ if (!in_impl_uuid || *in_impl_uuid != kDownmixImplUUID) {
+ LOG(ERROR) << __func__ << "uuid not supported";
+ return EX_ILLEGAL_ARGUMENT;
+ }
+ if (instanceSpp) {
+ *instanceSpp = ndk::SharedRefBase::make<DownmixImpl>();
+ LOG(DEBUG) << __func__ << " instance " << instanceSpp->get() << " created";
+ return EX_NONE;
+ } else {
+ LOG(ERROR) << __func__ << " invalid input parameter!";
+ return EX_ILLEGAL_ARGUMENT;
+ }
+}
+
+extern "C" binder_exception_t queryEffect(const AudioUuid* in_impl_uuid, Descriptor* _aidl_return) {
+ if (!in_impl_uuid || *in_impl_uuid != kDownmixImplUUID) {
+ LOG(ERROR) << __func__ << "uuid not supported";
+ return EX_ILLEGAL_ARGUMENT;
+ }
+ *_aidl_return = DownmixImpl::kDescriptor;
+ return EX_NONE;
+}
+
+namespace aidl::android::hardware::audio::effect {
+
+const std::string DownmixImpl::kEffectName = "Multichannel Downmix To Stereo";
+const Descriptor DownmixImpl::kDescriptor = {
+ .common = {
+ .id = {.type = kDownmixTypeUUID, .uuid = kDownmixImplUUID, .proxy = std::nullopt},
+ .flags = {.type = Flags::Type::INSERT, .insert = Flags::Insert::FIRST},
+ .name = DownmixImpl::kEffectName,
+ .implementor = "The Android Open Source Project"}};
+
+ndk::ScopedAStatus DownmixImpl::getDescriptor(Descriptor* _aidl_return) {
+ RETURN_IF(!_aidl_return, EX_ILLEGAL_ARGUMENT, "Parameter:nullptr");
+ LOG(DEBUG) << __func__ << kDescriptor.toString();
+ *_aidl_return = kDescriptor;
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus DownmixImpl::setParameterCommon(const Parameter& param) {
+ RETURN_IF(!mContext, EX_NULL_POINTER, "nullContext");
+
+ auto tag = param.getTag();
+ switch (tag) {
+ case Parameter::common:
+ RETURN_IF(mContext->setCommon(param.get<Parameter::common>()) != RetCode::SUCCESS,
+ EX_ILLEGAL_ARGUMENT, "setCommFailed");
+ break;
+ case Parameter::deviceDescription:
+ RETURN_IF(mContext->setOutputDevice(param.get<Parameter::deviceDescription>()) !=
+ RetCode::SUCCESS,
+ EX_ILLEGAL_ARGUMENT, "setDeviceFailed");
+ break;
+ case Parameter::mode:
+ RETURN_IF(mContext->setAudioMode(param.get<Parameter::mode>()) != RetCode::SUCCESS,
+ EX_ILLEGAL_ARGUMENT, "setModeFailed");
+ break;
+ case Parameter::source:
+ RETURN_IF(mContext->setAudioSource(param.get<Parameter::source>()) != RetCode::SUCCESS,
+ EX_ILLEGAL_ARGUMENT, "setSourceFailed");
+ break;
+ case Parameter::volumeStereo:
+ RETURN_IF(mContext->setVolumeStereo(param.get<Parameter::volumeStereo>()) !=
+ RetCode::SUCCESS,
+ EX_ILLEGAL_ARGUMENT, "setVolumeStereoFailed");
+ break;
+ default: {
+ LOG(ERROR) << __func__ << " unsupportedParameterTag " << toString(tag);
+ return ndk::ScopedAStatus::fromExceptionCodeWithMessage(EX_ILLEGAL_ARGUMENT,
+ "commonParamNotSupported");
+ }
+ }
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus DownmixImpl::commandImpl(CommandId command) {
+ RETURN_IF(!mContext, EX_NULL_POINTER, "nullContext");
+ switch (command) {
+ case CommandId::START:
+ mContext->enable();
+ break;
+ case CommandId::STOP:
+ mContext->disable();
+ break;
+ case CommandId::RESET:
+ mContext->reset();
+ break;
+ default:
+ LOG(ERROR) << __func__ << " commandId " << toString(command) << " not supported";
+ return ndk::ScopedAStatus::fromExceptionCodeWithMessage(EX_ILLEGAL_ARGUMENT,
+ "commandIdNotSupported");
+ }
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus DownmixImpl::setParameterSpecific(const Parameter::Specific& specific) {
+ RETURN_IF(Parameter::Specific::downmix != specific.getTag(), EX_ILLEGAL_ARGUMENT,
+ "EffectNotSupported");
+ RETURN_IF(!mContext, EX_NULL_POINTER, "nullContext");
+
+ auto& dmParam = specific.get<Parameter::Specific::downmix>();
+ auto tag = dmParam.getTag();
+
+ switch (tag) {
+ case Downmix::type: {
+ RETURN_IF(mContext->setDmType(dmParam.get<Downmix::type>()) != RetCode::SUCCESS,
+ EX_ILLEGAL_ARGUMENT, "setTypeFailed");
+ return ndk::ScopedAStatus::ok();
+ }
+ default: {
+ LOG(ERROR) << __func__ << " unsupported tag: " << toString(tag);
+ return ndk::ScopedAStatus::fromExceptionCodeWithMessage(EX_ILLEGAL_ARGUMENT,
+ "DownmixTagNotSupported");
+ }
+ }
+}
+
+ndk::ScopedAStatus DownmixImpl::getParameterSpecific(const Parameter::Id& id,
+ Parameter::Specific* specific) {
+ RETURN_IF(!specific, EX_NULL_POINTER, "nullPtr");
+ auto tag = id.getTag();
+ RETURN_IF(Parameter::Id::downmixTag != tag, EX_ILLEGAL_ARGUMENT, "wrongIdTag");
+ auto dmId = id.get<Parameter::Id::downmixTag>();
+ auto dmIdTag = dmId.getTag();
+ switch (dmIdTag) {
+ case Downmix::Id::commonTag:
+ return getParameterDownmix(dmId.get<Downmix::Id::commonTag>(), specific);
+ default:
+ LOG(ERROR) << __func__ << " unsupported tag: " << toString(dmIdTag);
+ return ndk::ScopedAStatus::fromExceptionCodeWithMessage(EX_ILLEGAL_ARGUMENT,
+ "DownmixTagNotSupported");
+ }
+}
+
+ndk::ScopedAStatus DownmixImpl::getParameterDownmix(const Downmix::Tag& tag,
+ Parameter::Specific* specific) {
+ RETURN_IF(!mContext, EX_NULL_POINTER, "nullContext");
+
+ Downmix dmParam;
+ switch (tag) {
+ case Downmix::type: {
+ dmParam.set<Downmix::type>(mContext->getDmType());
+ break;
+ }
+ default: {
+ LOG(ERROR) << __func__ << " unsupported tag: " << toString(tag);
+ return ndk::ScopedAStatus::fromExceptionCodeWithMessage(EX_ILLEGAL_ARGUMENT,
+ "DownmixTagNotSupported");
+ }
+ }
+
+ specific->set<Parameter::Specific::downmix>(dmParam);
+ return ndk::ScopedAStatus::ok();
+}
+
+std::shared_ptr<EffectContext> DownmixImpl::createContext(const Parameter::Common& common) {
+ if (mContext) {
+ LOG(DEBUG) << __func__ << " context already exist";
+ return mContext;
+ }
+
+ mContext = std::make_shared<DownmixContext>(1 /* statusFmqDepth */, common);
+ return mContext;
+}
+
+RetCode DownmixImpl::releaseContext() {
+ if (mContext) {
+ mContext.reset();
+ }
+ return RetCode::SUCCESS;
+}
+
+// Processing method running in EffectWorker thread.
+IEffect::Status DownmixImpl::effectProcessImpl(float* in, float* out, int sampleToProcess) {
+ if (!mContext) {
+ LOG(ERROR) << __func__ << " nullContext";
+ return {EX_NULL_POINTER, 0, 0};
+ }
+ return mContext->lvmProcess(in, out, sampleToProcess);
+}
+
+} // namespace aidl::android::hardware::audio::effect