784e443350
1. Add function getProviderCapabilities_2_2
to return audio capability
2. Add function GetLeAudioOffloadCodecCapabilities
to get le audio offload capability
3. Add LeAudioCapability in HAL 2.2
Tag: #feature
Bug: 203535499
Bug: 150670922
Test: atest BluetoothInstrumentationTests
Change-Id: Ied2d0c8c0bdaa4b8d0c149b5164ba346e4df5ae1
73 lines
2.9 KiB
Text
73 lines
2.9 KiB
Text
/*
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* Copyright 2021 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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package android.hardware.bluetooth.audio@2.2;
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import IBluetoothAudioProvider;
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import @2.1::IBluetoothAudioProvidersFactory;
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import @2.0::Status;
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import @2.1::SessionType;
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/**
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* This factory allows a HAL implementation to be split into multiple
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* independent providers.
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*
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* When the Bluetooth stack is ready to create an audio session, it must first
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* obtain the IBluetoothAudioProvider for that session type by calling
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* openProvider().
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*
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* Note: For HIDL APIs with a "generates" statement, the callback parameter used
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* for return value must be invoked synchronously before the API call returns.
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*/
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interface IBluetoothAudioProvidersFactory extends @2.1::IBluetoothAudioProvidersFactory {
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/**
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* Opens an audio provider for a session type. To close the provider, it is
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* necessary to release references to the returned provider object.
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*
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* @param sessionType The session type (e.g.
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* LE_AUDIO_SOFTWARE_ENCODING_DATAPATH).
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*
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* @return status One of the following
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* SUCCESS if the Audio HAL successfully opens the provider with the
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* given session type
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* FAILURE if the Audio HAL cannot open the provider
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* @return provider The provider of the specified session type
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*/
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openProvider_2_2(SessionType sessionType)
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generates (Status status, IBluetoothAudioProvider provider);
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/**
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* Gets a list of audio capabilities for a session type.
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*
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* For software encoding, the PCM capabilities are returned.
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* For hardware encoding, the supported codecs and their capabilities are
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* returned.
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*
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* @param sessionType The session type (e.g.
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* A2DP_SOFTWARE_ENCODING_DATAPATH).
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* @return audioCapabilities A list containing all the capabilities
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* supported by the sesson type. The capabilities is a list of
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* available options when configuring the codec for the session.
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* For software encoding it is the PCM data rate.
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* For hardware encoding it is the list of supported codecs and their
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* capabilities.
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* If a provider isn't supported, an empty list should be returned.
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* Note: Only one entry should exist per codec when using hardware
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* encoding.
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*/
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getProviderCapabilities_2_2(SessionType sessionType)
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generates (vec<AudioCapabilities> audioCapabilities);
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};
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