History

Mikhail Naganov 5ec48c2d4d audio: Create libraries for data types in core and effect Add 'CoreUtils' library similar to 'HidlUtils' for the types specific to the core HAL. Add 'EffectUtils' library similar to 'HidlUtils' for the types specific to the effects HAL. Move into them and de-duplicate code previously scattered across the default HAL implementation and libaudiohal. Add unit tests. Removed 'AUDIO_{INPUT\|OUTPUT}_FLAG_NONE' from the list of values in the XSD file to avoid additional complexity due to equivalence of this value to an empty list of flags. Bug: 142480271 Test: m android.hardware.audio@X.0-impl Test: m android.hardware.audio.effect@X.0-impl Test: atest android.hardware.audio@7.0-util_tests Test: atest android.hardware.audio.common@7.0-util_tests Test: atest android.hardware.audio.effect@7.0-util_tests Change-Id: I71a95cbe07fcc162dc6d74ff9665747a17ce5a80		2021-02-02 18:17:26 +00:00
..
2.0	update hidl .bp	2020-07-07 16:22:36 +09:00
4.0	Make android.hardware.renderscript@1.0 buildable for native_bridge	2020-07-08 21:20:03 +00:00
5.0	Add AUDIO_FORMAT_MAT to the list of formats in XSD	2021-01-22 23:12:36 +00:00
6.0	Add AUDIO_FORMAT_MAT to the list of formats in XSD V6	2021-01-26 01:51:57 +00:00
7.0	audio: Create libraries for data types in core and effect	2021-02-02 18:17:26 +00:00
common	audio: Create libraries for data types in core and effect	2021-02-02 18:17:26 +00:00
core/all-versions	audio: Create libraries for data types in core and effect	2021-02-02 18:17:26 +00:00
effect	audio: Create libraries for data types in core and effect	2021-02-02 18:17:26 +00:00
policy/1.0	Remove vts10 reference vts_target_tests_defaults	2020-10-05 10:48:24 -07:00
README.md	audio: Create libraries for data types in core and effect	2021-02-02 18:17:26 +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.