| 1 | /* |
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| 2 | Copyright 2018 Google Inc. All Rights Reserved. |
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| 3 | |
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| 4 | Licensed under the Apache License, Version 2.0 (the "License"); |
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| 5 | you may not use this file except in compliance with the License. |
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| 6 | You may obtain a copy of the License at |
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| 7 | |
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| 8 | http://www.apache.org/licenses/LICENSE-2.0 |
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| 9 | |
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| 10 | Unless required by applicable law or agreed to in writing, software |
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| 11 | distributed under the License is distributed on an "AS-IS" BASIS, |
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| 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 13 | See the License for the specific language governing permissions and |
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| 14 | limitations under the License. |
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| 15 | */ |
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| 16 | |
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| 17 | #ifndef RESONANCE_AUDIO_GRAPH_SOURCE_PARAMETERS_MANAGER_H_ |
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| 18 | #define RESONANCE_AUDIO_GRAPH_SOURCE_PARAMETERS_MANAGER_H_ |
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| 19 | |
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| 20 | #include <functional> |
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| 21 | #include <unordered_map> |
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| 22 | |
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| 23 | #include "base/constants_and_types.h" |
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| 24 | #include "base/source_parameters.h" |
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| 25 | |
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| 26 | namespace vraudio { |
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| 27 | |
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| 28 | // Class that manages the corresponding parameters of each registered source. |
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| 29 | class SourceParametersManager { |
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| 30 | public: |
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| 31 | // Alias for the parameters process closure type. |
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| 32 | using Process = std::function<void(SourceParameters*)>; |
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| 33 | |
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| 34 | // Registers new source parameters for given |source_id|. |
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| 35 | // |
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| 36 | // @param source_id Source id. |
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| 37 | void Register(SourceId source_id); |
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| 38 | |
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| 39 | // Unregisters the source parameters for given |source_id|. |
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| 40 | // |
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| 41 | // @param source_id Source id. |
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| 42 | void Unregister(SourceId source_id); |
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| 43 | |
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| 44 | // Returns read-only source parameters for given |source_id|. |
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| 45 | // |
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| 46 | // @param source_id Source id. |
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| 47 | // @return Read-only source parameters, nullptr if |source_id| not found. |
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| 48 | const SourceParameters* GetParameters(SourceId source_id) const; |
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| 49 | |
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| 50 | // Returns mutable source parameters for given |source_id|. |
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| 51 | // |
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| 52 | // @param source_id Source id. |
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| 53 | // @return Mutable source parameters, nullptr if |source_id| not found. |
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| 54 | SourceParameters* GetMutableParameters(SourceId source_id); |
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| 55 | |
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| 56 | // Executes given |process| for the parameters of each registered source. |
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| 57 | // |
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| 58 | // @param process Parameters processing method. |
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| 59 | void ProcessAllParameters(const Process& process); |
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| 60 | |
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| 61 | private: |
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| 62 | // Registered source parameters. |
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| 63 | std::unordered_map<SourceId, SourceParameters> parameters_; |
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| 64 | }; |
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| 65 | |
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| 66 | } // namespace vraudio |
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| 67 | |
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| 68 | #endif // RESONANCE_AUDIO_GRAPH_SOURCE_PARAMETERS_MANAGER_H_ |
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| 69 | |
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