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audio: import aidl hal

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* hardware/interfaces/audio/aidl/default/ at android-16.0.0_r1.
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Konsta
2025-10-22 17:31:20 +03:00
parent 3292156c2a
commit 7d6df38051
168 changed files with 27991 additions and 0 deletions
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audio/EffectFactory.cpp Normal file
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/*
* 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.
*/
#include <dlfcn.h>
#include <algorithm>
#include <iterator>
#include <memory>
#include <optional>
#include <tuple>
#include <unordered_set>
#define LOG_TAG "AHAL_EffectFactory"
#include <android-base/logging.h>
#include <android/binder_ibinder_platform.h>
#include <system/audio_aidl_utils.h>
#include <system/audio_effects/effect_uuid.h>
#include <system/thread_defs.h>
#include "effect-impl/EffectTypes.h"
#include "effectFactory-impl/EffectFactory.h"
using aidl::android::media::audio::common::AudioUuid;
namespace aidl::android::hardware::audio::effect {
Factory::Factory(const std::string& file) : mConfig(EffectConfig(file)) {
LOG(DEBUG) << __func__ << " with config file: " << file;
loadEffectLibs();
}
Factory::~Factory() {
if (auto count = mEffectMap.size()) {
LOG(WARNING) << __func__ << " remaining " << count
<< " effect instances not destroyed indicating resource leak!";
for (const auto& it : mEffectMap) {
if (auto spEffect = it.first.lock()) {
LOG(WARNING) << __func__ << " erase remaining instance UUID "
<< ::android::audio::utils::toString(it.second.first);
destroyEffectImpl_l(spEffect);
}
}
}
}
ndk::ScopedAStatus Factory::getDescriptorWithUuid_l(const AudioUuid& uuid, Descriptor* desc) {
RETURN_IF(!desc, EX_NULL_POINTER, "nullDescriptor");
if (mEffectLibMap.count(uuid)) {
auto& entry = mEffectLibMap[uuid];
getDlSyms_l(entry);
auto& libInterface = std::get<kMapEntryInterfaceIndex>(entry);
RETURN_IF(!libInterface || !libInterface->queryEffectFunc, EX_NULL_POINTER,
"dlNullQueryEffectFunc");
RETURN_IF_BINDER_EXCEPTION(libInterface->queryEffectFunc(&uuid, desc));
return ndk::ScopedAStatus::ok();
}
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
ndk::ScopedAStatus Factory::queryEffects(const std::optional<AudioUuid>& in_type_uuid,
const std::optional<AudioUuid>& in_impl_uuid,
const std::optional<AudioUuid>& in_proxy_uuid,
std::vector<Descriptor>* _aidl_return) {
std::lock_guard lg(mMutex);
// get the matching list
std::vector<Descriptor::Identity> idList;
std::copy_if(mIdentitySet.begin(), mIdentitySet.end(), std::back_inserter(idList),
[&](auto& id) {
return (!in_type_uuid.has_value() || in_type_uuid.value() == id.type) &&
(!in_impl_uuid.has_value() || in_impl_uuid.value() == id.uuid) &&
(!in_proxy_uuid.has_value() ||
(id.proxy.has_value() && in_proxy_uuid.value() == id.proxy.value()));
});
// query through the matching list
for (const auto& id : idList) {
if (mEffectLibMap.count(id.uuid)) {
Descriptor desc;
RETURN_IF_ASTATUS_NOT_OK(getDescriptorWithUuid_l(id.uuid, &desc),
"getDescriptorFailed");
// update proxy UUID with information from config xml
desc.common.id.proxy = id.proxy;
_aidl_return->emplace_back(std::move(desc));
}
}
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus Factory::queryProcessing(const std::optional<Processing::Type>& in_type,
std::vector<Processing>* _aidl_return) {
std::lock_guard lg(mMutex);
const auto& processings = mConfig.getProcessingMap();
// Processing stream type
for (const auto& procIter : processings) {
if (!in_type.has_value() || in_type.value() == procIter.first) {
Processing process = {.type = procIter.first /* Processing::Type */};
for (const auto& libs : procIter.second /* std::vector<struct EffectLibraries> */) {
for (const auto& lib : libs.libraries /* std::vector<struct Library> */) {
Descriptor desc;
if (libs.proxyLibrary.has_value()) {
desc.common.id.proxy = libs.proxyLibrary.value().uuid;
}
RETURN_IF_ASTATUS_NOT_OK(getDescriptorWithUuid_l(lib.uuid, &desc),
"getDescriptorFailed");
process.ids.emplace_back(desc);
}
}
_aidl_return->emplace_back(process);
}
}
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus Factory::createEffect(const AudioUuid& in_impl_uuid,
std::shared_ptr<IEffect>* _aidl_return) {
LOG(DEBUG) << __func__ << ": UUID " << ::android::audio::utils::toString(in_impl_uuid);
std::lock_guard lg(mMutex);
if (mEffectLibMap.count(in_impl_uuid)) {
auto& entry = mEffectLibMap[in_impl_uuid];
getDlSyms_l(entry);
auto& libInterface = std::get<kMapEntryInterfaceIndex>(entry);
RETURN_IF(!libInterface || !libInterface->createEffectFunc, EX_NULL_POINTER,
"dlNullcreateEffectFunc");
std::shared_ptr<IEffect> effectSp;
RETURN_IF_BINDER_EXCEPTION(libInterface->createEffectFunc(&in_impl_uuid, &effectSp));
if (!effectSp) {
LOG(WARNING) << __func__ << ": library created null instance without return error!";
return ndk::ScopedAStatus::fromExceptionCode(EX_TRANSACTION_FAILED);
}
*_aidl_return = effectSp;
ndk::SpAIBinder effectBinder = effectSp->asBinder();
AIBinder_setMinSchedulerPolicy(effectBinder.get(), SCHED_NORMAL, ANDROID_PRIORITY_AUDIO);
AIBinder_setInheritRt(effectBinder.get(), true);
mEffectMap[std::weak_ptr<IEffect>(effectSp)] =
std::make_pair(in_impl_uuid, std::move(effectBinder));
return ndk::ScopedAStatus::ok();
} else {
LOG(ERROR) << __func__ << ": library doesn't exist";
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus Factory::destroyEffectImpl_l(const std::shared_ptr<IEffect>& in_handle) {
std::weak_ptr<IEffect> wpHandle(in_handle);
// find the effect entry with key (std::weak_ptr<IEffect>)
if (auto effectIt = mEffectMap.find(wpHandle); effectIt != mEffectMap.end()) {
auto& uuid = effectIt->second.first;
// find implementation library with UUID
if (auto libIt = mEffectLibMap.find(uuid); libIt != mEffectLibMap.end()) {
auto& interface = std::get<kMapEntryInterfaceIndex>(libIt->second);
RETURN_IF(!interface || !interface->destroyEffectFunc, EX_NULL_POINTER,
"dlNulldestroyEffectFunc");
RETURN_IF_BINDER_EXCEPTION(interface->destroyEffectFunc(in_handle));
} else {
LOG(ERROR) << __func__ << ": UUID " << ::android::audio::utils::toString(uuid)
<< " does not exist in libMap!";
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
mEffectMap.erase(effectIt);
return ndk::ScopedAStatus::ok();
} else {
LOG(ERROR) << __func__ << ": instance " << in_handle << " does not exist!";
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
}
// go over the map and cleanup all expired weak_ptrs.
void Factory::cleanupEffectMap_l() {
for (auto it = mEffectMap.begin(); it != mEffectMap.end();) {
if (nullptr == it->first.lock()) {
it = mEffectMap.erase(it);
} else {
++it;
}
}
}
ndk::ScopedAStatus Factory::destroyEffect(const std::shared_ptr<IEffect>& in_handle) {
std::lock_guard lg(mMutex);
ndk::ScopedAStatus status = destroyEffectImpl_l(in_handle);
// always do the cleanup
cleanupEffectMap_l();
return status;
}
bool Factory::openEffectLibrary(const AudioUuid& impl,
const std::string& path) NO_THREAD_SAFETY_ANALYSIS {
std::function<void(void*)> dlClose = [](void* handle) -> void {
if (handle && dlclose(handle)) {
LOG(ERROR) << "dlclose failed " << dlerror();
}
};
auto libHandle =
std::unique_ptr<void, decltype(dlClose)>{dlopen(path.c_str(), RTLD_LAZY), dlClose};
if (!libHandle) {
LOG(ERROR) << __func__ << ": dlopen failed, err: " << dlerror();
return false;
}
LOG(DEBUG) << __func__ << " dlopen lib: " << path
<< "\nimpl:" << ::android::audio::utils::toString(impl) << "\nhandle:" << libHandle;
auto interface = new effect_dl_interface_s{nullptr, nullptr, nullptr};
mEffectLibMap.insert(
{impl,
std::make_tuple(std::move(libHandle),
std::unique_ptr<struct effect_dl_interface_s>(interface), path)});
return true;
}
void Factory::createIdentityWithConfig(
const EffectConfig::Library& configLib, const AudioUuid& typeUuid,
const std::optional<AudioUuid> proxyUuid) NO_THREAD_SAFETY_ANALYSIS {
static const auto& libMap = mConfig.getLibraryMap();
const std::string& libName = configLib.name;
if (auto path = libMap.find(libName); path != libMap.end()) {
Descriptor::Identity id;
id.type = typeUuid;
id.uuid = configLib.uuid;
id.proxy = proxyUuid;
LOG(WARNING) << __func__ << " loading lib " << path->second << ": typeUuid "
<< ::android::audio::utils::toString(id.type) << "\nimplUuid "
<< ::android::audio::utils::toString(id.uuid) << " proxyUuid "
<< (proxyUuid.has_value()
? ::android::audio::utils::toString(proxyUuid.value())
: "null");
if (openEffectLibrary(id.uuid, path->second)) {
mIdentitySet.insert(std::move(id));
}
} else {
LOG(ERROR) << __func__ << ": library " << libName << " not exist!";
return;
}
}
void Factory::loadEffectLibs() {
const auto& configEffectsMap = mConfig.getEffectsMap();
for (const auto& configEffects : configEffectsMap) {
if (AudioUuid type; EffectConfig::findUuid(configEffects /* xml effect */, &type)) {
const auto& configLibs = configEffects.second;
std::optional<AudioUuid> proxyUuid;
if (configLibs.proxyLibrary.has_value()) {
const auto& proxyLib = configLibs.proxyLibrary.value();
proxyUuid = proxyLib.uuid;
}
for (const auto& configLib : configLibs.libraries) {
createIdentityWithConfig(configLib, type, proxyUuid);
}
} else {
LOG(WARNING) << __func__ << ": can not find type UUID for effect "
<< configEffects.first << " skipping!";
}
}
}
void Factory::getDlSyms_l(DlEntry& entry) {
auto& dlHandle = std::get<kMapEntryHandleIndex>(entry);
RETURN_VALUE_IF(!dlHandle, void(), "dlNullHandle");
// Get the reference of the DL interfaces in library map tuple.
auto& dlInterface = std::get<kMapEntryInterfaceIndex>(entry);
// return if interface already exist
if (!dlInterface->createEffectFunc) {
dlInterface->createEffectFunc = (EffectCreateFunctor)dlsym(dlHandle.get(), "createEffect");
}
if (!dlInterface->queryEffectFunc) {
dlInterface->queryEffectFunc = (EffectQueryFunctor)dlsym(dlHandle.get(), "queryEffect");
}
if (!dlInterface->destroyEffectFunc) {
dlInterface->destroyEffectFunc =
(EffectDestroyFunctor)dlsym(dlHandle.get(), "destroyEffect");
}
if (!dlInterface->createEffectFunc || !dlInterface->destroyEffectFunc ||
!dlInterface->queryEffectFunc) {
LOG(ERROR) << __func__ << ": create (" << dlInterface->createEffectFunc << "), query ("
<< dlInterface->queryEffectFunc << "), or destroy ("
<< dlInterface->destroyEffectFunc
<< ") not exist in library: " << std::get<kMapEntryLibNameIndex>(entry)
<< " handle: " << dlHandle << " with dlerror: " << dlerror();
return;
}
}
} // namespace aidl::android::hardware::audio::effect