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platform_hardware_interfaces/audio
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Eric Laurent 040984fd44 Audio HAL V7.1: Add latency mode APIs 
Add APis for controlling the latency mode on an output stream.
Latency mode control is optional but mandated if spatial audio with
head tracking is supported over Bluetooth classic audio link.

Bug: 187446271
Test: m android.hardware.audio@7.1-impl
Change-Id: I363db3bf7f7b6439e326d0f6f4becc10b3947e7d
2022-01-27 21:05:47 +01:00
..
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 Audio HAL V7.1: Add latency mode APIs 2022-01-27 21:05:47 +01:00
aidl audio: Add AIDL definitions for Playback/RecordTrackMetadata 2022-01-06 06:32:36 +00:00
common Audio HAL V7.1: Update VTS 2022-01-25 01:24:52 +00:00
core/all-versions Audio HAL V7.1: Add latency mode APIs 2022-01-27 21:05:47 +01:00
effect Audio HAL V7.1: Update VTS 2022-01-25 01:24:52 +00:00
policy/1.0 AudioPolicy Engine: update schema for optional attributes of criterion types 2021-12-17 14:09:04 +01:00
README.md audio: Create libraries for data types in core and effect 2021-02-03 01:28:38 +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.