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Diffstat (limited to 'services/audiopolicy/engineconfigurable/src/Stream.h')
-rwxr-xr-x | services/audiopolicy/engineconfigurable/src/Stream.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/services/audiopolicy/engineconfigurable/src/Stream.h b/services/audiopolicy/engineconfigurable/src/Stream.h new file mode 100755 index 0000000..8c39dc6 --- /dev/null +++ b/services/audiopolicy/engineconfigurable/src/Stream.h @@ -0,0 +1,115 @@ +/* + * Copyright (C) 2015 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 "Element.h" +#include "EngineDefinition.h" +#include <Volume.h> +#include <RoutingStrategy.h> +#include <map> + +namespace android +{ +namespace audio_policy +{ +/** + * @tparam routing_strategy: Applicable strategy for this stream. + */ +template <> +class Element<audio_stream_type_t> +{ +private: + typedef std::map<Volume::device_category, VolumeCurvePoints> VolumeProfiles; + typedef VolumeProfiles::iterator VolumeProfileIterator; + typedef VolumeProfiles::const_iterator VolumeProfileConstIterator; + +public: + Element(const std::string &name) + : mName(name), + mApplicableStrategy(STRATEGY_MEDIA), + mIndexMin(0), + mIndexMax(1) + {} + ~Element() {} + + /** + * Returns identifier of this policy element + * + * @returns string representing the name of this policy element + */ + const std::string &getName() const { return mName; } + + /** + * Set the unique identifier for this policy element. + * + * @tparam Key type of the unique identifier. + * @param[in] identifier to be set. + * + * @return NO_ERROR if the identifier is valid and set correctly, error code otherwise. + */ + status_t setIdentifier(audio_stream_type_t identifier); + + /** + * @return the unique identifier of this policy element. + */ + audio_stream_type_t getIdentifier() const { return mIdentifier; } + + /** + * A Policy element may implement getter/setter function for a given property. + * Property may be routing_strategy, audio_stream_type_t, audio_usage_t, audio_source_t + * or a string. + */ + template <typename Property> + Property get() const; + + template <typename Property> + status_t set(Property property); + + status_t setVolumeProfile(Volume::device_category category, const VolumeCurvePoints &points); + + float volIndexToDb(Volume::device_category deviceCategory, int indexInUi); + + status_t initVolume(int indexMin, int indexMax); + +private: + /* Copy facilities are put private to disable copy. */ + Element(const Element &object); + Element &operator=(const Element &object); + + std::string mName; /**< Unique literal Identifier of a policy base element*/ + audio_stream_type_t mIdentifier; /**< Unique numerical Identifier of a policy base element*/ + + routing_strategy mApplicableStrategy; /**< Applicable strategy for this stream. */ + + /** + * Collection of volume profiles indexed by the stream type. + * Volume is the only reason why the stream profile was not removed from policy when introducing + * attributes. + */ + VolumeProfiles mVolumeProfiles; + + int mIndexMin; + + int mIndexMax; +}; + +typedef Element<audio_stream_type_t> Stream; + +} // namespace audio_policy +} // namespace android + + |