blob: 43f1f6c4e54928228133a37a93766b1c84b1f9d7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* Copyright (c) 2019 The Linux Foundation. All rights reserved.
* Not a contribution.
*/
/*
* Copyright 2018 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.
*/
package vendor.qti.hardware.bluetooth_audio@2.0;
import IBluetoothAudioProvider;
/**
* This factory allows a HAL implementation to be split into multiple
* independent providers.
*
* When the Bluetooth stack is ready to create an audio session, it must first
* obtain the IBluetoothAudioProvider for that session type by calling
* openProvider().
*
* Note: For HIDL APIs with a "generates" statement, the callback parameter used
* for return value must be invoked synchronously before the API call returns.
*/
interface IBluetoothAudioProvidersFactory {
/**
* Opens an audio provider for a session type. To close the provider, it is
* necessary to release references to the returned provider object.
*
* @param sessionType The session type (e.g.
* A2DP_SOFTWARE_ENCODING_DATAPATH).
*
* @return status One of the following
* SUCCESS if the Audio HAL successfully opens the provider with the
* given session type
* FAILURE if the Audio HAL cannot open the provider
* @return provider The provider of the specified session type
*/
openProvider(SessionType sessionType)
generates (Status status, IBluetoothAudioProvider provider);
/**
* Gets a list of audio capabilities for a session type.
*
* For software encoding, the PCM capabilities are returned.
* For hardware encoding, the supported codecs and their capabilities are
* returned.
*
* @param sessionType The session type (e.g.
* A2DP_SOFTWARE_ENCODING_DATAPATH).
* @return audioCapabilities A list containing all the capabilities
* supported by the sesson type. The capabilities is a list of
* available options when configuring the codec for the session.
* For software encoding it is the PCM data rate.
* For hardware encoding it is the list of supported codecs and their
* capabilities.
* If a provider isn't supported, an empty list should be returned.
* Note: Only one entry should exist per codec when using hardware
* encoding.
*/
getProviderCapabilities(SessionType sessionType)
generates (vec<AudioCapabilities> audioCapabilities);
};
|
