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Commit daba1246 authored by Hongwei Wang's avatar Hongwei Wang
Browse files

Master mute is valid when running fixed volume for automotive 

In Automotive case, we set fixed volume to suggest no volume control
inside AudioFlinger and master mute is a mapping to the physical mute
button in a car, which toggles the global mute state.

Bug: 80474559
Test: adb shell input keyevent 164
Change-Id: I1d4fd143a98ee96f11850811c90e6d9932cab948
parent 6de87296

services/core/java/com/android/server/audio/AudioService.java

+9 −2
Original line number Diff line number Diff line
@@ -215,6 +215,10 @@ public class AudioService extends IAudioService.Stub 
        return mPlatformType == AudioSystem.PLATFORM_TELEVISION;

    }



    private boolean isPlatformAutomotive() {

        return mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE);

    }



    /** The controller for the volume UI. */

    private final VolumeController mVolumeController = new VolumeController();
@@ -2367,8 +2371,11 @@ public class AudioService extends IAudioService.Stub 
        if (DEBUG_VOL) {

            Log.d(TAG, String.format("Master mute %s, %d, user=%d", mute, flags, userId));

        }

        if (mUseFixedVolume) {

            return; // If using fixed volume, we don't mute.

        if (!isPlatformAutomotive() && mUseFixedVolume) {

            // If using fixed volume, we don't mute.

            // TODO: remove the isPlatformAutomotive check here.

            // The isPlatformAutomotive check is added for safety but may not be necessary.

            return;

        }

        if (getCurrentUserId() == userId) {

            if (mute != AudioSystem.getMasterMute()) {