History

Mikhail Naganov 459b7331e9 audio: Make renamings suggested by reviewers Rename DriverInterface::getPosition -> refinePosition. This reflects the fact that the driver may provide more precise position, however this is an optional operation. Rename StreamIn/Out::mContext -> mContextInstance. This is to emphasize that StreamIn/Out actually own the context and they hold the real context instance, not just a reference/pointer to it, like other classes involved in the inheritance chain. Bug: 286914845 Test: atest VtsHalAudioCoreTargetTest Change-Id: Id7159f9bf3ee020dc7cf594ec35f5d59d23d7e31		2023-08-03 10:31:12 -07:00
..
2.0
4.0
5.0
6.0
7.0	audio: Fix parsing of arguments in the APM config update script am: `b9e244dfc7` am: `188d6412b0`	2021-06-11 22:06:36 +00:00
7.1	Make AUDIO_USAGE_NOTIFICATION_EVENT available to HALs	2022-02-12 00:03:49 +00:00
aidl	audio: Make renamings suggested by reviewers	2023-08-03 10:31:12 -07:00
common	Remove duplcated static libgtest	2023-06-05 12:47:39 -07:00
core/all-versions	audio VTS: Update 7.0/PolicyConfig	2023-05-08 13:17:08 -07:00
effect	Effect: Move thread priority updates from threadLoop	2023-01-13 13:48:48 -08:00
policy/1.0	Audio: add system usage to audio policy engine schemas	2023-08-02 10:47:00 +02:00
OWNERS	audio: clean up OWNERS	2022-12-29 23:22:02 +00:00
README.md	audio: Update README.md to add info about the AIDL version	2023-01-20 21:54:17 +00:00

README.md

Audio HAL

Directory structure of the audio HAL related code.

Run common/all-versions/copyHAL.sh to create a new version of the audio HAL based on an existing one.

Directory Structure

2.0 — version 2.0 of the core HIDL API. Note that .hal files can not be moved into the core directory because that would change its namespace and include path.
- config — the XSD schema for the Audio Policy Manager configuration file.
4.0 — version 4.0 of the core HIDL API.
...
common — common types for audio core and effect HIDL API.
- 2.0 — version 2.0 of the common types HIDL API.
- 4.0 — version 4.0.
- ...
- 7.0 — version 7.0.
  - example — example implementation of the core and effect V7.0 API. It represents a "fake" audio HAL that doesn't actually communicate with hardware.
- all-versions — code common to all version of both core and effect API.
  - default — shared code of the default implementation.
    - service — vendor HAL service for hosting the default implementation.
  - test — utilities used by tests.
  - util — utilities used by both implementation and tests.
core — VTS tests and the default implementation of the core API (not HIDL API, it's in audio/N.M).
- 7.0 — code specific to version V7.0 of the core HIDL API
- all-versions — the code is common between all versions, version-specific parts are enclosed into conditional directives of preprocessor or reside in dedicated files.
  - default — code that wraps the legacy API (from hardware/libhardware).
    - util — utilities for the default implementation.
  - vts VTS tests for the core HIDL API.
effect — same for the effect HIDL API.
- 2.0
  - config — the XSD schema for the Audio Effects configuration file.
- 4.0
- ...
- all-versions
  - default — code that wraps the legacy API (from hardware/libhardware).
    - util — utilities for the default implementation.
  - vts VTS tests for the effect HIDL API.
policy — Configurable Audio Policy schemes.
- 1.0 — note that versions of CAP are not linked to the versions of audio HAL.
  - vts — VTS tests for validating actual configuration files.
  - xml — XSD schemas for CAP configuration files.