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Commit 2b0c1fc0 authored by Jean-Michel Trivi's avatar Jean-Michel Trivi
Browse files

AudioPolicyManager: notification of dynamic policy mix activity (input) 

Use ref counting on start/stop inputs to notify audio policy client
 of mix activity changes.

Bug 20226914

Change-Id: Ic4f9c91301d0bcbc0ff749acebdc3b2300309c38
parent 32495581

services/audiopolicy/managerdefault/AudioPolicyManager.cpp

+13 −0
Original line number Diff line number Diff line
@@ -1418,6 +1418,13 @@ status_t AudioPolicyManager::startInput(audio_io_handle_t input, 
    }



    if (inputDesc->mRefCount == 0) {

        // if input maps to a dynamic policy with an activity listener, notify of state change

        if ((inputDesc->mPolicyMix != NULL)

                && ((inputDesc->mPolicyMix->mFlags & MIX_FLAG_NOTIFY_ACTIVITY) != 0)) {

            mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mRegistrationId,

                    MIX_STATE_MIXING);

        }



        if (mInputs.activeInputsCount() == 0) {

            SoundTrigger::setCaptureState(true);

        }
@@ -1471,6 +1478,12 @@ status_t AudioPolicyManager::stopInput(audio_io_handle_t input, 


    inputDesc->mRefCount--;

    if (inputDesc->mRefCount == 0) {

        // if input maps to a dynamic policy with an activity listener, notify of state change

        if ((inputDesc->mPolicyMix != NULL)

                && ((inputDesc->mPolicyMix->mFlags & MIX_FLAG_NOTIFY_ACTIVITY) != 0)) {

            mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mRegistrationId,

                    MIX_STATE_IDLE);

        }



        // automatically disable the remote submix output when input is stopped if not

        // used by a policy mix of type MIX_TYPE_RECORDERS