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platform_hardware_interfaces/audio
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Mikhail Naganov 8dbc51158f audio: Set 'maxOpenStreamCount' to unlimited for input ports 
Since libaudiohal@aidl reports that the most current legacy C API
version is supported by the HAL, the audio server uses a different
logic for telephony scenarios than for the HIDL HAL. This involves
opening more streams on the same mix port. Allow opening
an unlimited number of streams. However, keep the number of active
streams to be `1`.

Bug: 302132812
Test: atest CtsMediaAudioTestCases --test-filter=".*AudioNativeTest.*"
Test: atest CtsMediaAudioTestCases --test-filter=".*CallAudioInterceptionTest.*"
Change-Id: I896398fca73f28d28d9397d00751394c969531b4
2023-10-02 15:19:03 -07:00
..
2.0
4.0
5.0
6.0
7.0
7.1 Make AUDIO_USAGE_NOTIFICATION_EVENT available to HALs 2022-02-12 00:03:49 +00:00
aidl audio: Set 'maxOpenStreamCount' to unlimited for input ports 2023-10-02 15:19:03 -07:00
common Remove duplcated static libgtest 2023-06-05 12:47:39 -07:00
core/all-versions Don't depend on String8 cast to C string [audio] 2023-09-13 04:22:00 +00:00
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.