119 lines
3.0 KiB
C++
119 lines
3.0 KiB
C++
/*
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* Copyright (C) 2018 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 <system/audio.h>
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#include <string>
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#include <vector>
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#include <utils/Errors.h>
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struct _xmlNode;
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struct _xmlDoc;
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namespace android {
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namespace engineConfig {
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/** Default path of audio policy usages configuration file. */
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constexpr char DEFAULT_PATH[] = "/vendor/etc/audio_policy_engine_configuration.xml";
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using AttributesVector = std::vector<audio_attributes_t>;
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using StreamVector = std::vector<audio_stream_type_t>;
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struct AttributesGroup {
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std::string name;
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audio_stream_type_t stream;
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std::string volumeGroup;
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AttributesVector attributesVect;
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};
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using AttributesGroups = std::vector<AttributesGroup>;
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struct CurvePoint {
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int index;
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int attenuationInMb;
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};
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using CurvePoints = std::vector<CurvePoint>;
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struct VolumeCurve {
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std::string deviceCategory;
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CurvePoints curvePoints;
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};
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using VolumeCurves = std::vector<VolumeCurve>;
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struct VolumeGroup {
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std::string name;
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int indexMin;
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int indexMax;
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VolumeCurves volumeCurves;
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};
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using VolumeGroups = std::vector<VolumeGroup>;
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struct ProductStrategy {
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std::string name;
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AttributesGroups attributesGroups;
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};
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using ProductStrategies = std::vector<ProductStrategy>;
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using ValuePair = std::tuple<uint64_t, uint32_t, std::string>;
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using ValuePairs = std::vector<ValuePair>;
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struct CriterionType
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{
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std::string name;
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bool isInclusive;
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ValuePairs valuePairs;
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};
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using CriterionTypes = std::vector<CriterionType>;
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struct Criterion
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{
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std::string name;
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std::string typeName;
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std::string defaultLiteralValue;
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};
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using Criteria = std::vector<Criterion>;
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struct Config {
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float version;
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ProductStrategies productStrategies;
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Criteria criteria;
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CriterionTypes criterionTypes;
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VolumeGroups volumeGroups;
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};
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/** Result of `parse(const char*)` */
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struct ParsingResult {
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/** Parsed config, nullptr if the xml lib could not load the file */
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std::unique_ptr<Config> parsedConfig;
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size_t nbSkippedElement; //< Number of skipped invalid product strategies
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};
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/** Parses the provided audio policy usage configuration.
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* @return audio policy usage @see Config
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*/
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ParsingResult parse(const char* path = DEFAULT_PATH);
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android::status_t parseLegacyVolumes(VolumeGroups &volumeGroups);
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// Exposed for testing.
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android::status_t parseLegacyVolumeFile(const char* path, VolumeGroups &volumeGroups);
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} // namespace engineConfig
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} // namespace android
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