Merge "AudioFlinger: Prevent FastMixer for A2DP sink"

        break;

    case FastMixer_Static:

    case FastMixer_Dynamic:

        initFastMixer = mFrameCount < mNormalFrameCount;

        // FastMixer was designed to operate with a HAL that pulls at a regular rate,

        // where the period is less than an experimentally determined threshold that can be

        // scheduled reliably with CFS. However, the BT A2DP HAL is

        // bursty (does not pull at a regular rate) and so cannot operate with FastMixer.

        initFastMixer = mFrameCount < mNormalFrameCount

                && (mOutDevice & AUDIO_DEVICE_OUT_ALL_A2DP) == 0;

        break;

    }

    ALOGW_IF(initFastMixer == false && mFrameCount < mNormalFrameCount,

            "FastMixer is preferred for this sink as frameCount %zu is less than threshold %zu",

            mFrameCount, mNormalFrameCount);

    if (initFastMixer) {

        audio_format_t fastMixerFormat;

        if (mMixerBufferEnabled && mEffectBufferEnabled) {