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Commit 4ced7193 authored by Yasuhiro Matsuda's avatar Yasuhiro Matsuda
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Do not broadcast ACTION_AUDIO_BECOMING_NOISY on first boot. 

This is for improving boot time by avoiding launch of
unnecessary processes (e.g com.google.android.apps.magazines)
during boot time.
Boot time is reduced by 100~200 ms on Nexus 9.

BUG: 22163689
Change-Id: Iaf373f6a5458c266100a5298b7096bbbd4ff42c2
parent 39ed6e76

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

+14 −8
Original line number Diff line number Diff line
@@ -477,6 +477,8 @@ public class AudioService extends IAudioService.Stub { 


    // true if boot sequence has been completed

    private boolean mSystemReady;

    // true if Intent.ACTION_USER_SWITCHED has ever been received

    private boolean mUserSwitchedReceived;

    // listener for SoundPool sample load completion indication

    private SoundPoolCallback mSoundPoolCallBack;

    // thread for SoundPool listener
@@ -5059,7 +5061,9 @@ public class AudioService extends IAudioService.Stub { 
            } else if (action.equals(Intent.ACTION_CONFIGURATION_CHANGED)) {

                handleConfigurationChanged(context);

            } else if (action.equals(Intent.ACTION_USER_SWITCHED)) {

                // attempt to stop music playback for background user

                if (mUserSwitchedReceived) {

                    // attempt to stop music playback for background user except on first user

                    // switch (i.e. first boot)

                    sendMsg(mAudioHandler,

                            MSG_BROADCAST_AUDIO_BECOMING_NOISY,

                            SENDMSG_REPLACE,
@@ -5067,6 +5071,8 @@ public class AudioService extends IAudioService.Stub { 
                            0,

                            null,

                            0);

                }

                mUserSwitchedReceived = true;

                // the current audio focus owner is no longer valid

                mMediaFocusControl.discardAudioFocusOwner();