Merge "audio policy: do not route accessibility prompts to compressed output" into lmp-mr1-dev

    // FIXME: STRATEGY_ACCESSIBILITY and STRATEGY_REROUTING follow STRATEGY_MEDIA for now

    case STRATEGY_ACCESSIBILITY:

        if (strategy == STRATEGY_ACCESSIBILITY) {

            // do not route accessibility prompts to a digital output currently configured with a

            // compressed format as they would likely not be mixed and dropped.

            for (size_t i = 0; i < mOutputs.size(); i++) {

                sp<AudioOutputDescriptor> desc = mOutputs.valueAt(i);

                audio_devices_t devices = desc->device() &

                    (AUDIO_DEVICE_OUT_HDMI | AUDIO_DEVICE_OUT_SPDIF | AUDIO_DEVICE_OUT_HDMI_ARC);

                if (desc->isActive() && !audio_is_linear_pcm(desc->mFormat) &&

                        devices != AUDIO_DEVICE_NONE) {

                    availableOutputDeviceTypes = availableOutputDeviceTypes & ~devices;

                }

            }

        }

        // FALL THROUGH

    case STRATEGY_REROUTING:

    case STRATEGY_MEDIA: {

        uint32_t device2 = AUDIO_DEVICE_NONE;