112 lines
4.1 KiB
C
112 lines
4.1 KiB
C
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/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <functional>
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#include <map>
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#include <memory>
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#include <string>
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#include <unordered_map>
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#include <vector>
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#include <cutils/properties.h>
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#include <tinyxml2.h>
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#include <aidl/android/hardware/audio/effect/Processing.h>
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#include "effect-impl/EffectTypes.h"
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namespace aidl::android::hardware::audio::effect {
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/**
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* Library contains a mapping from library name to path.
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* Effect contains a mapping from effect name to Libraries and implementation UUID.
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* Pre/post processor contains a mapping from processing name to effect names.
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*/
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class EffectConfig {
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public:
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explicit EffectConfig(const std::string& file);
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struct LibraryUuid {
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std::string name; // library name
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::aidl::android::media::audio::common::AudioUuid uuid;
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};
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// <effects>
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struct EffectLibraries {
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std::optional<struct LibraryUuid> proxyLibrary;
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std::vector<struct LibraryUuid> libraries;
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};
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int getSkippedElements() const { return mSkippedElements; }
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const std::unordered_map<std::string, std::string> getLibraryMap() const { return mLibraryMap; }
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const std::unordered_map<std::string, struct EffectLibraries> getEffectsMap() const {
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return mEffectsMap;
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}
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static bool findUuid(const std::string& xmlEffectName,
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::aidl::android::media::audio::common::AudioUuid* uuid);
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using ProcessingLibrariesMap = std::map<Processing::Type, std::vector<struct EffectLibraries>>;
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const ProcessingLibrariesMap& getProcessingMap() const;
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private:
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static constexpr const char* kEffectLibPath[] =
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#ifdef __LP64__
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{"/odm/lib64/soundfx", "/vendor/lib64/soundfx", "/system/lib64/soundfx"};
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#else
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{"/odm/lib/soundfx", "/vendor/lib/soundfx", "/system/lib/soundfx"};
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#endif
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int mSkippedElements;
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/* Parsed Libraries result */
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std::unordered_map<std::string, std::string> mLibraryMap;
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/* Parsed Effects result */
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std::unordered_map<std::string, struct EffectLibraries> mEffectsMap;
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/**
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* For parsed pre/post processing result: {key: AudioStreamType/AudioSource, value:
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* EffectLibraries}
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*/
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ProcessingLibrariesMap mProcessingMap;
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/** @return all `node`s children that are elements and match the tag if provided. */
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std::vector<std::reference_wrapper<const tinyxml2::XMLElement>> getChildren(
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const tinyxml2::XMLNode& node, const char* childTag = nullptr);
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/** Parse a library xml note and push the result in mLibraryMap or return false on failure. */
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bool parseLibrary(const tinyxml2::XMLElement& xml);
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/** Parse an effect from an xml element describing it.
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* @return true and pushes the effect in mEffectsMap on success, false on failure.
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*/
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bool parseEffect(const tinyxml2::XMLElement& xml);
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bool parseProcessing(Processing::Type::Tag typeTag, const tinyxml2::XMLElement& xml);
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// Function to parse effect.library name and effect.uuid from xml
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bool parseLibraryUuid(const tinyxml2::XMLElement& xml, struct LibraryUuid& libraryUuid,
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bool isProxy = false);
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const char* dump(const tinyxml2::XMLElement& element,
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tinyxml2::XMLPrinter&& printer = {}) const;
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bool resolveLibrary(const std::string& path, std::string* resolvedPath);
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std::optional<Processing::Type> stringToProcessingType(Processing::Type::Tag typeTag,
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const std::string& type);
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};
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} // namespace aidl::android::hardware::audio::effect
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