1Directory structure of the audio HIDL related code.
2
3audio
4|-- 2.0              <== HIDL (.hal) can not be moved to fit the directory structure
5|                        because that would create a separate HAL
6|-- 4.0              <== Version 4.0 of the core API
7|
8|-- common           <== code common to audio core and effect API
9|   |-- 2.0
10|   |   |-- default  <== code that wraps the legacy API
11|   |   `-- vts      <== vts of 2.0 core and effect API common code
12|   |-- 4.0
13|   |   |-- default
14|   |   `-- vts
15|   |-- ...          <== The future versions should continue this structure
16|   |   |-- default
17|   |   `-- vts
18|   `-- all_versions <== code common to all version of both core and effect API
19|       |-- default
20|       `-- vts      <== vts of core and effect API common version independent code
21|
22|-- core           <== code relative to the core API
23|   |-- 2.0          <== 2.0 core API code (except .hal, see audio/2.0)
24|   |   |-- default
25|   |   `-- vts
26|   |-- 4.0
27|   |   |-- default  <== default implementation of the core 4.0 api
28|   |   `-- vts      <== vts code of the 4.0 API
29|   |-- ...
30|   |   |-- default
31|   |   `-- vts
32|   `-- all_versions
33|       |-- default
34|       `-- vts      <== vts of core API common version independent code
35|
36`-- effect           <== idem for the effect API
37    |-- 2.0
38    |   |-- default
39    |   `-- vts
40    |-- 4.0
41    |   |-- default
42    |   `-- vts
43    |-- ...
44    |   |-- default
45    |   `-- vts
46    `-- all_versions
47        |-- default
48        `-- vts
49