Пример #1
0
status_t StreamingProcessor::startStream(StreamType type,
        const Vector<int32_t> &outputStreams) {
    ATRACE_CALL();
    status_t res;

    if (type == NONE) return INVALID_OPERATION;

    sp<CameraDeviceBase> device = mDevice.promote();
    if (device == 0) {
        ALOGE("%s: Camera %d: Device does not exist", __FUNCTION__, mId);
        return INVALID_OPERATION;
    }

    ALOGV("%s: Camera %d: type = %d", __FUNCTION__, mId, type);

    Mutex::Autolock m(mMutex);

    // If a recording stream is being started up, free up any
    // outstanding buffers left from the previous recording session.
    // There should never be any, so if there are, warn about it.
    if (isStreamActive(outputStreams, mRecordingStreamId)) {
        releaseAllRecordingFramesLocked();
    }

    ALOGV("%s: Camera %d: %s started, recording heap has %zu free of %zu",
            __FUNCTION__, mId, (type == PREVIEW) ? "preview" : "recording",
            mRecordingHeapFree, mRecordingHeapCount);

    CameraMetadata &request = (type == PREVIEW) ?
            mPreviewRequest : mRecordingRequest;

    res = request.update(
        ANDROID_REQUEST_OUTPUT_STREAMS,
        outputStreams);
    if (res != OK) {
        ALOGE("%s: Camera %d: Unable to set up preview request: %s (%d)",
                __FUNCTION__, mId, strerror(-res), res);
        return res;
    }

    res = request.sort();
    if (res != OK) {
        ALOGE("%s: Camera %d: Error sorting preview request: %s (%d)",
                __FUNCTION__, mId, strerror(-res), res);
        return res;
    }

    res = device->setStreamingRequest(request);
    if (res != OK) {
        ALOGE("%s: Camera %d: Unable to set preview request to start preview: "
                "%s (%d)",
                __FUNCTION__, mId, strerror(-res), res);
        return res;
    }
    mActiveRequest = type;
    mPaused = false;
    mActiveStreamIds = outputStreams;
    return OK;
}
Пример #2
0
bool AudioOutputDescriptor::isActive(uint32_t inPastMs) const
{
    nsecs_t sysTime = 0;
    if (inPastMs != 0) {
        sysTime = systemTime();
    }
    for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) {
        if (i == AUDIO_STREAM_PATCH) {
            continue;
        }
        if (isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) {
            return true;
        }
    }
    return false;
}
Пример #3
0
status_t StreamingProcessor::setRecordingBufferCount(size_t count) {
    ATRACE_CALL();
    // Make sure we can support this many buffer slots
    if (count > BufferQueue::NUM_BUFFER_SLOTS) {
        ALOGE("%s: Camera %d: Too many recording buffers requested: %zu, max %d",
                __FUNCTION__, mId, count, BufferQueue::NUM_BUFFER_SLOTS);
        return BAD_VALUE;
    }

    Mutex::Autolock m(mMutex);

    ALOGV("%s: Camera %d: New recording buffer count from encoder: %zu",
            __FUNCTION__, mId, count);

    // Need to re-size consumer and heap
    if (mRecordingHeapCount != count) {
        ALOGV("%s: Camera %d: Resetting recording heap and consumer",
            __FUNCTION__, mId);

        if (isStreamActive(mActiveStreamIds, mRecordingStreamId)) {
            ALOGE("%s: Camera %d: Setting recording buffer count when "
                    "recording stream is already active!", __FUNCTION__,
                    mId);
            return INVALID_OPERATION;
        }

        releaseAllRecordingFramesLocked();

        if (mRecordingHeap != 0) {
            mRecordingHeap.clear();
        }
        mRecordingHeapCount = count;
        mRecordingHeapFree = count;

        mRecordingConsumer.clear();
    }

    return OK;
}
audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, bool fromCache)
{
    uint32_t device = 0;

    if (fromCache) {
        device = mDeviceForStrategy[strategy];
        ALOGV("getDeviceForStrategy() from cache strategy %d, device %x", strategy, device);
        return (audio_devices_t)device;
    }

    switch (strategy) {
    case STRATEGY_DTMF:
        if (!isInCall()) {
            // when off call, DTMF strategy follows the same rules as MEDIA strategy
            device = getDeviceForStrategy(STRATEGY_MEDIA, false);
            break;
        }
        // when in call, DTMF and PHONE strategies follow the same rules
        // FALL THROUGH

    case STRATEGY_PHONE:
        // for phone strategy, we first consider the forced use and then the available devices by order
        // of priority
        switch (mForceUse[AudioSystem::FOR_COMMUNICATION]) {
        case AudioSystem::FORCE_BT_SCO:
            if (!isInCall() || strategy != STRATEGY_DTMF) {
                device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
                if (device) break;
            }
            // otherwise (not docked) continue with selection
            device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
            if (device) break;
            device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_SCO;
            if (device) break;
            // if SCO device is requested but no SCO device is available, fall back to default case
            // FALL THROUGH

        default:    // FORCE_NONE
            device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_WIRED_HEADPHONE;
            if (device) break;
            device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_WIRED_HEADSET;
            if (device) break;
            // when not in call:
            if (!isInCall()) {
                // - if we are docked to a BT CAR dock, give A2DP preference over earpiece
                // - if we are docked to a BT DESK dock, give speaker preference over earpiece
                if (mForceUse[AudioSystem::FOR_DOCK] == AudioSystem::FORCE_BT_CAR_DOCK) {
                    device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP;
                } else if (mForceUse[AudioSystem::FOR_DOCK] == AudioSystem::FORCE_BT_DESK_DOCK) {
                    device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_SPEAKER;
                }
                if (device) break;
                // - phone strategy should route STREAM_VOICE_CALL to A2DP
                device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP;
                if (device) break;
                device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
                if (device) break;
            }
	    /*
            device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_EARPIECE;
            if (device == 0) {
                ALOGE ("getDeviceForStrategy() earpiece device not found");
            }
	    */

            device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_SPEAKER;
            if (device == 0) {
                ALOGE ("getDeviceForStrategy() speaker device not found");
            }

            break;

        case AudioSystem::FORCE_SPEAKER:
            if (!isInCall() || strategy != STRATEGY_DTMF) {
                device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
                if (device) break;
            }
            // when not in call:
            if (!isInCall()) {
                // - if we are docked to a BT CAR dock, give A2DP preference over phone spkr
                if (mForceUse[AudioSystem::FOR_DOCK] == AudioSystem::FORCE_BT_CAR_DOCK) {
                    device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP;
                    if (device) break;
                }
                // - phone strategy should route STREAM_VOICE_CALL to A2DP speaker
                //   when forcing to speaker output
                device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
                if (device) break;
            }
            device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_SPEAKER;
            if (device == 0) {
                ALOGE ("getDeviceForStrategy() speaker device not found");
            }
            break;
        }
    break;

    case STRATEGY_SONIFICATION:
        // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by
        // handleIncallSonification().
        if (isInCall()) {
            device = getDeviceForStrategy(STRATEGY_PHONE, false);
            break;
        }
        // If not incall:
        // - if we are docked to a BT CAR dock, don't duplicate for the sonification strategy
        // - if we are docked to a BT DESK dock, use only speaker for the sonification strategy
        if (mForceUse[AudioSystem::FOR_DOCK] != AudioSystem::FORCE_BT_CAR_DOCK) {
            device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_SPEAKER;
            if (device == 0) {
                ALOGE ("getDeviceForStrategy() speaker device not found");
            }
            if (mForceUse[AudioSystem::FOR_DOCK] == AudioSystem::FORCE_BT_DESK_DOCK) {
                if (mAvailableOutputDevices & AudioSystem::DEVICE_OUT_WIRED_HEADPHONE) {
                    device |= AudioSystem::DEVICE_OUT_WIRED_HEADPHONE;
                } else if (mAvailableOutputDevices & AudioSystem::DEVICE_OUT_WIRED_HEADSET) {
                    device |= AudioSystem::DEVICE_OUT_WIRED_HEADSET;
                }
                break;
            }
        } else {
            device = 0;
        }
        // The second device used for sonification is the same as the device used by media strategy
        // Note that when docked, we pick the device below (no duplication)
        // FALL THROUGH

    case STRATEGY_MEDIA: {
        uint32_t device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_AUX_DIGITAL;
#ifdef WITH_A2DP
	if (mHasA2dp && (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) && (getA2dpOutput() != 0) && !mA2dpSuspended) {
            if (device2 == 0) {
                // play ringtone over speaker (or speaker + headset) if in car dock
                // because A2DP is suspended in this case
                if (mForceUse[AudioSystem::FOR_DOCK] == AudioSystem::FORCE_BT_CAR_DOCK &&
                    strategy == STRATEGY_SONIFICATION &&
                    mPhoneState == AudioSystem::MODE_RINGTONE) {
                    device2 = mAvailableOutputDevices &
                              (AudioSystem::DEVICE_OUT_SPEAKER |
                               AudioSystem::DEVICE_OUT_WIRED_HEADPHONE |
                               AudioSystem::DEVICE_OUT_WIRED_HEADSET);
                }
            }
        }
#endif
        if (device2 == 0) {
            device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_WIRED_HEADPHONE;
        }
        if (device2 == 0) {
            device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_WIRED_HEADSET;
        }
#ifdef WITH_A2DP
	if (mHasA2dp && (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) && (getA2dpOutput() != 0) && !mA2dpSuspended) {
            if (device2 == 0) {
                device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP;
            }
            if (device2 == 0) {
                device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
            }
            if (device2 == 0) {
                device2 = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
            }
        }
#endif
        if (device2 == 0) {
            device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_SPEAKER;
        }
        // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION, 0 otherwise
        device |= device2;
        if (device == 0) {
            ALOGE ("getDeviceForStrategy() speaker device not found");
        }
        // Do not play media stream if in call and the requested device would change the hardware
        // output routing
        if (isInCall() &&
            !AudioSystem::isA2dpDevice((AudioSystem::audio_devices)device) &&
            device != getDeviceForStrategy(STRATEGY_PHONE, false)) {
            device = 0;
            ALOGV("getDeviceForStrategy() incompatible media and phone devices");
        }
        } break;

    case STRATEGY_ENFORCED_AUDIBLE:
        // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION
        // except:
        //   - when in call where it doesn't default to STRATEGY_PHONE behavior
        //   - in countries where not enforced in which case it follows STRATEGY_MEDIA

        if (strategy == STRATEGY_SONIFICATION ||
                !mStreams[AUDIO_STREAM_ENFORCED_AUDIBLE].mCanBeMuted) {
            device = mAvailableOutputDevices & AudioSystem::DEVICE_OUT_SPEAKER;
            if (device == 0) {
                ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION");
            }
        }
    case STRATEGY_SONIFICATION_RESPECTFUL:
        if (isInCall()) {
            device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/);
        } else if (isStreamActive(AudioSystem::MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) {
            // while media is playing (or has recently played), use the same device
            device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/);
        } else {
            // when media is not playing anymore, fall back on the sonification behavior
            device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/);
        }

        break;



    default:
        ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy);
        break;
    }

    ALOGV("getDeviceForStrategy() strategy %d, device %x", strategy, device);
    return (audio_devices_t)device;
}
void AudioPolicyManager::setPhoneState(int state) {
    ALOGV("setPhoneState() state %d", state);
    audio_devices_t newDevice = AUDIO_DEVICE_NONE;
    if (state < 0 || state >= AudioSystem::NUM_MODES) {
        ALOGW("setPhoneState() invalid state %d", state);
        return;
    }

    if (state == mPhoneState) {
        ALOGW("setPhoneState() setting same state %d", state);
        return;
    }

    // if leaving call state, handle special case of active streams
    // pertaining to sonification strategy see handleIncallSonification()
    if (isInCall()) {
        ALOGV("setPhoneState() in call state management: new state is %d", state);
        for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
            handleIncallSonification(stream, false, true);
        }
    }

    // store previous phone state for management of sonification strategy below
    int oldState = mPhoneState;
    mPhoneState = state;
    bool force = false;

    // are we entering or starting a call
    if (!isStateInCall(oldState) && isStateInCall(state)) {
        ALOGV("  Entering call in setPhoneState()");
        // force routing command to audio hardware when starting a call
        // even if no device change is needed
        force = true;
    } else if (isStateInCall(oldState) && !isStateInCall(state)) {
        ALOGV("  Exiting call in setPhoneState()");
        // force routing command to audio hardware when exiting a call
        // even if no device change is needed
        force = true;
    } else if (isStateInCall(state) && (state != oldState)) {
        ALOGV("  Switching between telephony and VoIP in setPhoneState()");
        // force routing command to audio hardware when switching between telephony and VoIP
        // even if no device change is needed
        force = true;
    }

    // check for device and output changes triggered by new phone state
    newDevice = getNewDevice(mPrimaryOutput, false /*fromCache*/);
    checkA2dpSuspend();
    checkOutputForAllStrategies();
    updateDevicesAndOutputs();

    AudioOutputDescriptor *hwOutputDesc = mOutputs.valueFor(mPrimaryOutput);

    // force routing command to audio hardware when ending call
    // even if no device change is needed
    if (isStateInCall(oldState) && newDevice == AUDIO_DEVICE_NONE) {
        newDevice = hwOutputDesc->device();
    }

    // when changing from ring tone to in call mode, mute the ringing tone
    // immediately and delay the route change to avoid sending the ring tone
    // tail into the earpiece or headset.
    int delayMs = 0;
    if (isStateInCall(state) && oldState == AudioSystem::MODE_RINGTONE) {
        // delay the device change command by twice the output latency to have some margin
        // and be sure that audio buffers not yet affected by the mute are out when
        // we actually apply the route change
        delayMs = hwOutputDesc->mLatency*2;
        setStreamMute(AudioSystem::RING, true, mPrimaryOutput);
    }

    if (isStateInCall(state)) {
        for (size_t i = 0; i < mOutputs.size(); i++) {
            AudioOutputDescriptor *desc = mOutputs.valueAt(i);
            //take the biggest latency for all outputs
            if (delayMs < desc->mLatency*2) {
                delayMs = desc->mLatency*2;
            }
            //mute STRATEGY_MEDIA on all outputs
            if (desc->strategyRefCount(STRATEGY_MEDIA) != 0) {
                setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i));
                setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS,
                    getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/));
            }
        }
    }

    // Ignore the delay to enable voice call on this target as the enabling the
    // voice call has enough delay to make sure the ringtone audio completely
    // played out
    if (state == AudioSystem::MODE_IN_CALL && oldState == AudioSystem::MODE_RINGTONE) {
        delayMs = 40;
    }

    // change routing is necessary
    setOutputDevice(mPrimaryOutput, newDevice, force, delayMs);

    // if entering in call state, handle special case of active streams
    // pertaining to sonification strategy see handleIncallSonification()
    if (isStateInCall(state)) {
        ALOGV("setPhoneState() in call state management: new state is %d", state);
        // unmute the ringing tone after a sufficient delay if it was muted before
        // setting output device above
        if (oldState == AudioSystem::MODE_RINGTONE) {
            setStreamMute(AudioSystem::RING, false, mPrimaryOutput, MUTE_TIME_MS);
        }
        for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
            handleIncallSonification(stream, true, true);
        }
    }

    // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE
    if (state == AudioSystem::MODE_RINGTONE &&
        isStreamActive(AudioSystem::MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) {
        mLimitRingtoneVolume = true;
    } else {
        mLimitRingtoneVolume = false;
    }
}
status_t BnAudioPolicyService::onTransact(
    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
    switch (code) {
        case SET_DEVICE_CONNECTION_STATE: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_devices_t device =
                    static_cast <audio_devices_t>(data.readInt32());
            audio_policy_dev_state_t state =
                    static_cast <audio_policy_dev_state_t>(data.readInt32());
            const char *device_address = data.readCString();
            reply->writeInt32(static_cast<uint32_t> (setDeviceConnectionState(device,
                                                                              state,
                                                                              device_address)));
            return NO_ERROR;
        } break;

        case GET_DEVICE_CONNECTION_STATE: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_devices_t device =
                    static_cast<audio_devices_t> (data.readInt32());
            const char *device_address = data.readCString();
            reply->writeInt32(static_cast<uint32_t> (getDeviceConnectionState(device,
                                                                              device_address)));
            return NO_ERROR;
        } break;

        case SET_PHONE_STATE: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            reply->writeInt32(static_cast <uint32_t>(setPhoneState(
                    (audio_mode_t) data.readInt32())));
            return NO_ERROR;
        } break;

        case SET_FORCE_USE: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_policy_force_use_t usage = static_cast <audio_policy_force_use_t>(
                    data.readInt32());
            audio_policy_forced_cfg_t config =
                    static_cast <audio_policy_forced_cfg_t>(data.readInt32());
            reply->writeInt32(static_cast <uint32_t>(setForceUse(usage, config)));
            return NO_ERROR;
        } break;

        case GET_FORCE_USE: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_policy_force_use_t usage = static_cast <audio_policy_force_use_t>(
                    data.readInt32());
            reply->writeInt32(static_cast <uint32_t>(getForceUse(usage)));
            return NO_ERROR;
        } break;

        case GET_OUTPUT: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_stream_type_t stream =
                    static_cast <audio_stream_type_t>(data.readInt32());
            uint32_t samplingRate = data.readInt32();
            audio_format_t format = (audio_format_t) data.readInt32();
            audio_channel_mask_t channelMask = data.readInt32();
            audio_output_flags_t flags =
                    static_cast <audio_output_flags_t>(data.readInt32());

            audio_io_handle_t output = getOutput(stream,
                                                 samplingRate,
                                                 format,
                                                 channelMask,
                                                 flags);
            reply->writeInt32(static_cast <int>(output));
            return NO_ERROR;
        } break;

        case START_OUTPUT: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32());
            uint32_t stream = data.readInt32();
            int session = data.readInt32();
            reply->writeInt32(static_cast <uint32_t>(startOutput(output,
                                                                 (audio_stream_type_t)stream,
                                                                 session)));
            return NO_ERROR;
        } break;

        case STOP_OUTPUT: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32());
            uint32_t stream = data.readInt32();
            int session = data.readInt32();
            reply->writeInt32(static_cast <uint32_t>(stopOutput(output,
                                                                (audio_stream_type_t)stream,
                                                                session)));
            return NO_ERROR;
        } break;

        case RELEASE_OUTPUT: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_io_handle_t output = static_cast <audio_io_handle_t>(data.readInt32());
            releaseOutput(output);
            return NO_ERROR;
        } break;

        case GET_INPUT: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_source_t inputSource = (audio_source_t) data.readInt32();
            uint32_t samplingRate = data.readInt32();
            audio_format_t format = (audio_format_t) data.readInt32();
            audio_channel_mask_t channelMask = data.readInt32();
            int audioSession = data.readInt32();
            audio_io_handle_t input = getInput(inputSource,
                                               samplingRate,
                                               format,
                                               channelMask,
                                               audioSession);
            reply->writeInt32(static_cast <int>(input));
            return NO_ERROR;
        } break;

        case START_INPUT: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_io_handle_t input = static_cast <audio_io_handle_t>(data.readInt32());
            reply->writeInt32(static_cast <uint32_t>(startInput(input)));
            return NO_ERROR;
        } break;

        case STOP_INPUT: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_io_handle_t input = static_cast <audio_io_handle_t>(data.readInt32());
            reply->writeInt32(static_cast <uint32_t>(stopInput(input)));
            return NO_ERROR;
        } break;

        case RELEASE_INPUT: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_io_handle_t input = static_cast <audio_io_handle_t>(data.readInt32());
            releaseInput(input);
            return NO_ERROR;
        } break;

        case INIT_STREAM_VOLUME: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_stream_type_t stream =
                    static_cast <audio_stream_type_t>(data.readInt32());
            int indexMin = data.readInt32();
            int indexMax = data.readInt32();
            reply->writeInt32(static_cast <uint32_t>(initStreamVolume(stream, indexMin,indexMax)));
            return NO_ERROR;
        } break;

        case SET_STREAM_VOLUME: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_stream_type_t stream =
                    static_cast <audio_stream_type_t>(data.readInt32());
            int index = data.readInt32();
            audio_devices_t device = static_cast <audio_devices_t>(data.readInt32());
            reply->writeInt32(static_cast <uint32_t>(setStreamVolumeIndex(stream,
                                                                          index,
                                                                          device)));
            return NO_ERROR;
        } break;

        case GET_STREAM_VOLUME: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_stream_type_t stream =
                    static_cast <audio_stream_type_t>(data.readInt32());
            audio_devices_t device = static_cast <audio_devices_t>(data.readInt32());
            int index;
            status_t status = getStreamVolumeIndex(stream, &index, device);
            reply->writeInt32(index);
            reply->writeInt32(static_cast <uint32_t>(status));
            return NO_ERROR;
        } break;

        case GET_STRATEGY_FOR_STREAM: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_stream_type_t stream =
                    static_cast <audio_stream_type_t>(data.readInt32());
            reply->writeInt32(getStrategyForStream(stream));
            return NO_ERROR;
        } break;

        case GET_DEVICES_FOR_STREAM: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_stream_type_t stream =
                    static_cast <audio_stream_type_t>(data.readInt32());
            reply->writeInt32(static_cast <int>(getDevicesForStream(stream)));
            return NO_ERROR;
        } break;

        case GET_OUTPUT_FOR_EFFECT: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            effect_descriptor_t desc;
            data.read(&desc, sizeof(effect_descriptor_t));
            audio_io_handle_t output = getOutputForEffect(&desc);
            reply->writeInt32(static_cast <int>(output));
            return NO_ERROR;
        } break;

        case REGISTER_EFFECT: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            effect_descriptor_t desc;
            data.read(&desc, sizeof(effect_descriptor_t));
            audio_io_handle_t io = data.readInt32();
            uint32_t strategy = data.readInt32();
            int session = data.readInt32();
            int id = data.readInt32();
            reply->writeInt32(static_cast <int32_t>(registerEffect(&desc,
                                                                   io,
                                                                   strategy,
                                                                   session,
                                                                   id)));
            return NO_ERROR;
        } break;

        case UNREGISTER_EFFECT: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            int id = data.readInt32();
            reply->writeInt32(static_cast <int32_t>(unregisterEffect(id)));
            return NO_ERROR;
        } break;

        case SET_EFFECT_ENABLED: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            int id = data.readInt32();
            bool enabled = static_cast <bool>(data.readInt32());
            reply->writeInt32(static_cast <int32_t>(setEffectEnabled(id, enabled)));
            return NO_ERROR;
        } break;

        case IS_STREAM_ACTIVE: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_stream_type_t stream = (audio_stream_type_t) data.readInt32();
            uint32_t inPastMs = (uint32_t)data.readInt32();
            reply->writeInt32( isStreamActive((audio_stream_type_t) stream, inPastMs) );
            return NO_ERROR;
        } break;

        case IS_STREAM_ACTIVE_REMOTELY: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_stream_type_t stream = (audio_stream_type_t) data.readInt32();
            uint32_t inPastMs = (uint32_t)data.readInt32();
            reply->writeInt32( isStreamActiveRemotely((audio_stream_type_t) stream, inPastMs) );
            return NO_ERROR;
        } break;

        case IS_SOURCE_ACTIVE: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            audio_source_t source = (audio_source_t) data.readInt32();
            reply->writeInt32( isSourceActive(source));
            return NO_ERROR;
        }

        case QUERY_DEFAULT_PRE_PROCESSING: {
            CHECK_INTERFACE(IAudioPolicyService, data, reply);
            int audioSession = data.readInt32();
            uint32_t count = data.readInt32();
            uint32_t retCount = count;
            effect_descriptor_t *descriptors =
                    (effect_descriptor_t *)new char[count * sizeof(effect_descriptor_t)];
            status_t status = queryDefaultPreProcessing(audioSession, descriptors, &retCount);
            reply->writeInt32(status);
            if (status != NO_ERROR && status != NO_MEMORY) {
                retCount = 0;
            }
            reply->writeInt32(retCount);
            if (retCount) {
                if (retCount < count) {
                    count = retCount;
                }
                reply->write(descriptors, sizeof(effect_descriptor_t) * count);
            }
            delete[] descriptors;
            return status;
        }

        default:
            return BBinder::onTransact(code, data, reply, flags);
    }
}