Wi-Fi Lock Audio and Video Capability

This topic describes the API methods that you can use to implement audio and video capabilities for Wi-Fi locks, for example, live streaming and two-way talk.

Classes

Class name	Description
ThingSmartWiFiLockDevice	Wi-Fi lock operation class, encapsulating audio and video capabilities, inherited from ThingSmartDevice.
ThingSmartWiFiLockDeviceDelegate	Wi-Fi lock protocol delegate, extended from ThingSmartDeviceDelegate.

Delegate

ThingSmartWiFiLockDeviceDelegate

/// Device uploads images DP 212
///
/// @param device The lock
/// @param message The data reported by the lock
- (void)onLockMessageArrived:(ThingSmartWiFiLockDevice *)device
                     message:(NSDictionary *)message;

/// The callback for live streaming reporting DP 63
///
/// @param device The lock
/// @param model The data reported by the lock
- (void)onVideoRequestRealtime:(ThingSmartWiFiLockDevice *)device
                         model:(NSString *)model;

/// Report the remote unlocking request image DP 9
///
/// @param device The lock
/// @param time Countdown
- (void)unlockRequestCountdown:(ThingSmartWiFiLockDevice *)device
                          time:(NSInteger)time;

/// Report the alert image DP 45
///
/// @param device The lock
/// @param time Countdown
- (void)alarmRequestCountdown:(ThingSmartWiFiLockDevice *)device
                         time:(NSInteger)time;

/// Report the response to remote unlocking DP 50
///
/// @param device The lock
- (void)onRemoteUnlockReport:(ThingSmartWiFiLockDevice *)device;

/// Report the response to force double locking DP 13
///
/// @param device The lock
- (void)onForceLockUpReport:(ThingSmartWiFiLockDevice *)device;

Example

// Initialization
self.lockDevice = [[ThingSmartWiFiLockDevice alloc] initWithDeviceId:self.device.deviceModel.devId];
// Set the delegate
self.lockDevice.delegate = self;

// Remote unlocking request DP 63
- (void)onVideoRequestRealtime:(ThingSmartWiFiLockDevice *)device model:(NSString *)model{
    //TODO
}

// Device uploads images DP 212
- (void)onLockMessageArrived:(ThingSmartWiFiLockDevice *)device message:(nonnull NSDictionary *)message{
    //TODO
}

// The image for remote unlocking request DP 9
- (void)unlockRequestCountdown:(ThingSmartWiFiLockDevice *)device time:(NSInteger)time{
    //TODO    
}

// The image for alert request DP 45
- (void)alarmRequestCountdown:(ThingSmartWiFiLockDevice *)device time:(NSInteger)time{
    //TODO
}

// Report the response to remote unlocking DP 50
- (void)onRemoteUnlockReport:(ThingSmartWiFiLockDevice *)device{
    //TODO
}

// Report the response to force double locking DP 13
- (void)onForceLockUpReport:(ThingSmartWiFiLockDevice *)device{
    //TODO
}

Remote unlocking

API description

Implements remote operations, including unlocking, locking, unlocking rejection, and locking rejection.

- (void)remoteLockWithDevId:(NSString *)devId
                       open:(BOOL)open
                    confirm:(BOOL)confirm
                    success:(nullable ThingSuccessBOOL)success
                    failure:(nullable ThingFailureError)failure;

Parameter description

Parameters	Description
devId	The device ID.
open	Specifies whether to unlock the door. YES: Unlock. NO: Lock.
confirm	Specifies whether to accept unlocking. YES: Accept. NO: Reject.
success	The success callback.
failure	The failure callback.

The success callback only represents a successful API call, which does not guarantee the lock has executed the specified command. When confirm is YES, the device status changes. onRemoteUnlockReport returns the result of the command execution. When confirm is NO, the device status does not change, with no data reported. In this case, the success callback can indicate that a rejection command is executed.

Example

    [self.lockDevice remoteLockWithDevId:devId
                                    open:YES
                                 confirm:NO
                                 success:^(BOOL result) {
						//TODO
    } failure:^(NSError *error) {
						//TODO
    }];

Capture image again

API description

The device captures an image, uploads it to the cloud storage, and then reports the image path through onLockMessageArrived.

- (void)reTakePhoto:(BOOL)needTake
            success:(ThingSuccessHandler)success
            failure:(ThingFailureError)failure;

Parameter description

Parameters	Description
needTake	Specifies whether to capture an image again.
success	The success callback.
failure	The failure callback.

Example

[self.lockDevice reTakePhoto:YES success:^{
						//TODO
    } failure:^(NSError *error) {
						//TODO
    }];

Force double locking

API description

Force double lock the door. onForceLockUpReport returns the result on success.

- (void)enforceLock:(BOOL)needLock
            success:(ThingSuccessHandler)success
            failure:(ThingFailureError)failure;

Parameter description

Parameters	Description
needLock	Specifies whether to implement force double locking.
success	The success callback.
failure	The failure callback.

Example

[self.lockDevice enforceLock:YES
                         success:^{
						//TODO
    } failure:^(NSError *error) {
						//TODO
    }];

Get the latest image URL

API description

Returns the URL of the latest image from cloud storage. This request is made along with getPopupPictureAddressWithDevId.

- (void)getLatestPopupInfoWithDevId:(NSString *)devId
                           fileType:(NSInteger)fileType
                            success:(nullable ThingSuccessID)success
                            failure:(nullable ThingFailureError)failure;

Parameter description

Parameters	Description
devId	The device ID.
fileType	The type of image. Unlocking-triggered image capture. Alert-triggered image capture.
success	The success callback.
failure	The failure callback.

Return values

Field	Description
filePath	The path of the image in cloud storage.
fileKey	The key used to decrypt the image.
bucket	The bucket in which the image is stored.

Example

    [self.lockDevice getLatestPopupInfoWithDevId:self.lockDevice.deviceModel.devId
                                        fileType:1
                                         success:^(id result) {
						//TODO
    } failure:^(NSError *error) {
						//TODO
    }];

Get URL of captured image

API description

Returns the URL of the image captured and uploaded to cloud storage. This request is made along with onLockMessageArrived or getLatestPicture.

- (void)getPopupPictureAddressWithDevId:(NSString *)devId
                                 bucket:(NSString *)bucket
                               filePath:(NSString *)filePath
                               success:(nullable ThingSuccessID)success
                               failure:(nullable ThingFailureError)failure;

Parameter description

Parameters	Description
devId	The device ID.
bucket	The bucket in which the image is stored.
filePath	The encrypted URL of the image in cloud storage.
success	The success callback.
failure	The failure callback.

Return values

Field	Description
fileUrl	The path of the image in cloud storage.
mediaUrl	The path of the video in cloud storage.
angle	The rotation angle configured on the Tuya IoT Development Platform. Valid values: 0, 90, 180, and 270.

Note

fileUrl is an encrypted URL. onLockMessageArrived or getLatestPopupInfoWithDevId must be called to get the value of fileKey and decrypt the URL. Tuya provides the control TYEncryptImage to decrypt and display the image.

Example

// Query the URL of the cover image.
[self.lockDevice getPopupPictureAddressWithDevId:self.lockDevice.deviceModel.devId
                                          bucket:bucket
                                        filePath:filePath
                                         success:^(id result) {
            NSInteger angle = [result[@"angle"] integerValue];
            NSString *fileUrl = result[@"fileUrl"];

        } failure:^(NSError *error) {

        }];

// Get the image after decrypting the image URL.
UIImageView *imageView = [UIImageView new];
[imageView ty_setAESImageWithPath:fileUrl
                       encryptKey:fileKey
                        completed:^(UIImage * _Nullable image, NSURL * _Nullable url, TYEncryptWebImageFromType from, TYEncryptWebImageStage stage, NSError * _Nullable error) {
        //TODO
    }];

Get video streaming view object

Property description

@property (nonatomic, strong, readonly) UIView *videoView;

Register a P2P listener

Example

// Initialization
self.lockDevice = [[ThingSmartWiFiLockDevice alloc] initWithDeviceId:self.device.deviceModel.devId];
// Set the delegate
self.lockDevice.delegate = self;

P2P connection

Before live video streaming, a P2P connection must be created. The P2P connection status is subject to your maintenance. The SDK can only send commands to and receive responses from the device.

API description

Create a P2P connection

- (void)p2pConnect;

Close a P2P connection

- (void)p2pDisConnect;

Whether P2P connection is built

- (BOOL)isP2pConnected;

Whether P2P connection in progress

- (BOOL)isP2pConnecting;

Play live video

After a P2P connection is created, live video streaming can be started.

API description

Start live video streaming

- (void)startPreviewWithDefinition:(NSInteger)definition
                           success:(ThingSuccessHandler)success
                           failure:(ThingFailureError)failure;

Stop live video streaming

- (void)stopPreview;

Parameter description

Parameters	Description
definition	The video definition mode.
success	The success callback.
failure	The failure callback.

The video definition mode.

Mode	Value
Standard definition (SD)	0x2
High definition (HD)	0x4

Example

[self.lockDevice startPreviewWithDefinition:0x2
 																		success:^{
                        //TODO
            											} failure:^(NSError *error) {
                        //TODO
}];

[self.lockDevice stopPreview];

Local recording

During live video streaming or record playback, the ongoing videos can be recorded on a mobile phone.

Start video recording

API description

- (void)startRecordWithRotateDirection:(ThingSmartVideoRotateDirection)direction
                              filePath:(NSString *)filePath;

Parameter description

Parameters	Description
direction	The angle of rotation.
filePath	The specified storage directory.

Stop video recording

API description

- (void)stopRecordAndFetchPath;

Callback parameter description

On success, the callback returns the video storage path (path) and binary video stream (data).

Whether recording in progress

API description

- (BOOL)isRecording;

Example

if ([self.lockDevice isRecording]) {
        [self.lockDevice stopRecordAndFetchPath];
    }else{
        [self.lockDevice startRecordWithRotateDirection:ThingSmartVideoRotateDirectionRight
															 filePath:filePath];
    }

Screenshot video

After screenshot

API description

- (UIImage *)snapShootWithRotateDirection:(ThingSmartVideoRotateDirection)direction
                              savedAtPath:(NSString *)filePath
                             thumbnilPath:(NSString *)thumbnilPath;

Parameter description

Parameters	Description
direction	The angle of rotation.
filePath	The specified storage directory.
thumbnilPath	The success callback.

Callback parameter description

On success, the callback returns the image storage path (path) and binary image stream (data).

Example

[self.lockDevice snapShootWithRotateDirection:ThingSmartVideoRotateDirectionRight
                                         savedAtPath:path
                                        thumbnilPath:thumbnilPath];

Audio settings

During video streaming or playback, the audio channel can be turned on or off. By default, audio is muted.

API description

Turn on/off audio channel

- (void)enableMute:(BOOL)mute;

Audio mode	Value
mute	YES: Turn on mute. NO: Turn off mute.

Whether to turn on audio

- (BOOL)isMuting;

Example

BOOL isMuted = [self.lockDevice isMuting];
[self.lockDevice enableMute:!isMuted];

Two-way talk

After a P2P connection is created, a two-way talk with the device can be turned on. Before the talk, the app must be granted access to the microphone of the mobile phone.

Turn on/off two-way talk

Turn on or off transmission of audio data from the mobile phone to the device.

- (void)startTalk;
- (void)stopTalk;

Whether two-way talk supported or turned on

- (BOOL)isSupportedTalk;
- (BOOL)isTalking;

Example

BOOL isTalking = [self.lockDevice isTalking];
BOOL isSupportedTalk = [self.lockDevice isSupportedTalk];

Others

Indicates whether the device is equipped with a pickup. If so, the video from the device has sound.

API description

- (BOOL)isSupportedSound;

Returns the default two-way talk mode.

API description

- (ThingSmartCameraTalkbackMode)supportedAudioMode;

Example

BOOL isSupportedSound = [self.lockDevice isSupportedSound];
ThingSmartCameraTalkbackMode mode = [self.lockDevice supportedAudioMode];

Destroy

API description

Destroys the allocated resource if a feature is not used. This helps to avoid possible errors. Get the cameraType of the ThingSmartWiFiLockDevice object, and then call the destroy method in ThingSmartCameraType.