Jun 10, 2012 The Samsung SMART CAMERA NX is a experience-oriented catalog App which lets you experience everything you see and feel with its unique NX value. From the latest product information on the Samsung SMART CAMERA NX System to beautiful sample photos, videos and more. This App not only delivers informat. Hi I have a Samsung smart TV and would like to be able to instal a good photo and video app that will display my holiday pics/ videos in the order I want to watch them. I can attach a USB stick or sd card but the TV doesn't give me a useful Sort function. There don't appear to be those sort of app.
Samsung SmartTV can use both the internal and an external camera. Here’s how the cameras are controlled in an application. The SDF provides intensive camera-related API guides, including how to set initial position and size of the camera window, that are sufficient for developing an application with the camera feature.
“Fitness VOD” is a good example that uses the camera feature. It offers “Virtual Mirror” that shows a user’s action on the screen using the camera feature, so that the user can closely compare a professional coach and herself. The application is available on the Samsung SmartTV App Store.
A user can also control sizes of VOD and the Virtual Mirror (camera) windows with three preset modes.
The SDF’s DTV Web Device API provides all camera-related API functions. Unlike the IME or AVPlayer, no complex exception handling is needed to add the camera capability. The API simply supports turning on or off a camera.
| Camera | |
|---|---|
| CLSID | clsid:SAMSUNG-INFOLINK-SEF |
| Functions | GetCameraState RegisterEventCallback StartCamVideo StopCamVideo |
Checking camera status
A camera’s current status can be checked using the GetCameraState() function, which returns one of four statuses listed.
| Function | GetCameraState |
| Version | Support from Camera-0001 |
| Usage | GetCameraState() |
| Security Type | RECOG |
| Return Value | PL_CAMERA_STATE |
| PL_CAMERA_STATE_DISCONNECTED (Camera is not connected) | |
| PL_CAMERA_STATE_CONNECTING (Camera is being loaded) | |
| PL_CAMERA_STATE_READY (Camera is ready) | |
| PL_CAMERA_STATE_PLAYING (Camera is working) |
Source: Samsung Developers Forum
The change in the camera status can be monitored using the RegisterEventCallback function, which returns one of the following three events.
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PL_CAMERA_EVENT_DISCONNECTED: Camera is disconnected
PL_CAMERA_EVENT_CONNECTING: Camera is connecting
PL_CAMERA_EVENT_CONNECTED: Camera is connected
| Function | RegisterEventCallback |
| Version | Support from Camera-0001 |
| Usage | RegisterEventCallback (Callback Function) |
| Return Value | void |
Source: Samsung Developers Forum
Example 1 of the RegisterEventCallback() function:
Example 2 of the RegisterEventCallback() function:
Turning on a camera
Use the StartCamVideo() function to start a camera with initial cam video parameters, including distance from the TV screen’s top-left edge, the cam video region’s width and height, and screen resolution and quality level.
The parameters of the StartCamVideo( ) function are as follows:
[positionX]
Horizontal distance from the TV screen’s top-left corner (integer value)
[positionY]
Vertical distance from the TV screen’s top-left corner (integer value)
[displayW]
Width of the camera window (integer value)
[displayH]
Height of the camera window (integer value)
[PL_CAMERA_RESOLUTION]
May choose between VGA and HD using these options:
[PL_CAMERA_QUALITY]
May choose among Low, Middle, and High using these options:
Following is an example of the StartCamVideo( ) function that turn the camera on with its screen displayed as a 640px by 480px window located at the top-left corner of the TV screen:
Turning off a camera
Turning off a camera is easier than turning it on since no parameter is necessary. Use the StopCamVideo() function to turn off a camera. The function returns a value that indicates if the camera was successfully turned off.
| Function | StopCamVideo |
| Version | Support from Camera-0001 |
| Usage | StopCamVideo() |
| Return Value | 1 (Success) |
| 0 (Failure) | |
| Example | webapis.camera.StopCamVideo(); |
Source: Samsung Developers Forum
The next example demonstrates turning on a camera and then turning it off.