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Commit ff080742 authored by Eric Laurent's avatar Eric Laurent
Browse files

add new audio sources for audio capture 

This commit adds the following audio capture sources:
- AUDIO_SOURCE_VOICE_PERFORMANCE: for real time live performances like Karaoke.
- AUDIO_SOURCE_ECHO_REFERENCE: for capturing the reference signal to suppress by an echo
canceller. Protected by privileged permission CAPTURE_AUDIO_OUTPUT.

Also added device AUDIO_DEVICE_IN_ECHO_REFERENCE selected when the requested
capture source is AUDIO_SOURCE_ECHO_REFERENCE.

Bug: 118203066
Test: CTS tests for audio capture
Change-Id: Ia93550b278733ae9cc5cda731b014421002fde35
parent 9bed22a4

audio/common/5.0/types.hal

+13 −1
Original line number Diff line number Diff line
@@ -133,7 +133,18 @@ enum AudioSource : int32_t { 
     * and raw signal analysis.

     */

    UNPROCESSED         = 9,



    /**

     * Source for capturing audio meant to be processed in real time and played back for live

     * performance (e.g karaoke). The capture path will minimize latency and coupling with

     * playback path.

     */

    VOICE_PERFORMANCE    = 10,

    /**

     * Source for an echo canceller to capture the reference signal to be cancelled.

     * The echo reference signal will be captured as close as possible to the DAC in order

     * to include all post processing applied to the playback path.

     */

    ECHO_REFERENCE      = 1997,

    FM_TUNER            = 1998,

};
@@ -598,6 +609,7 @@ enum AudioDevice : uint32_t { 
    IN_PROXY                 = BIT_IN | 0x1000000,

    IN_USB_HEADSET           = BIT_IN | 0x2000000,

    IN_BLUETOOTH_BLE         = BIT_IN | 0x4000000,

    IN_ECHO_REFERENCE        = BIT_IN | 0x10000000,

    IN_DEFAULT               = BIT_IN | BIT_DEFAULT,



    // Note that the 2.0 IN_ALL* have been moved to helper functions