History

Shunkai Yao c93642ad9b Merge "Move equalizer header file to Equalizer folder" am: `220cd046ff` Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2291515 Change-Id: I22e08e8e81850d35faa392cf5ab3866b5a2d92db Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>		2022-11-08 21:59:07 +00:00
..
2.0	[LSC] Add LOCAL_LICENSE_KINDS to hardware/interfaces	2021-02-23 14:26:20 -08:00
4.0	[LSC] Add LOCAL_LICENSE_KINDS to hardware/interfaces	2021-02-23 14:26:20 -08:00
5.0	[LSC] Add LOCAL_LICENSE_KINDS to hardware/interfaces	2021-02-23 14:26:20 -08:00
6.0	[LSC] Add LOCAL_LICENSE_KINDS to hardware/interfaces	2021-02-23 14:26:20 -08:00
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	Move equalizer header file to Equalizer folder	2022-11-08 02:45:25 +00:00
common	Merge TP1A.221005.003	2022-10-03 13:17:46 -07:00
core/all-versions	Add AudioAttributes and AudioFlag for use in HAL interface for engine configuration.	2022-09-06 23:14:58 +00:00
effect	audio: Add checks to effects feature configs retrieval	2022-09-01 00:35:52 +00:00
policy/1.0	Sync audio_policy_engine_configuration.xsd with the SDK	2022-09-21 18:23:06 +00:00
OWNERS	audio: add OWNERS for the README.md	2022-07-29 19:44:11 +00:00
README.md	audio: Update README.md to add info about the AIDL version	2022-08-25 16:34:25 +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.