Tizen Native API  5.5

The Camera API provides functions for camera preview, capture, and focusing.

Required Header

#include <camera.h>

Overview

The Camera API allows application developers to support using the camera. It includes functions that capture photos and support setting up notifications for state changes of capturing, previewing, focusing, information about resolution and binary data format, and functions for artistic picture manipulations like sepia, negative, sketch, and many more.

The Camera API allows creation of components required in taking pictures including:

  • selecting proper exposure parameters
  • selecting a proper output format
  • displaying a photo preview
  • triggering the capture phase
  • controlling and displaying the camera state
  • getting supported formats and picture resolutions
  • getting a preview format and a resolution

The Camera API also notifies you (by callback mechanism) when a significant picture parameter changes e.g. focus.

State Diagram

capi_media_camera_state_diagram.png

State Transitions

FUNCTION PRE-STATE POST-STATE SYNC TYPE
camera_create() NONE CREATED SYNC
camera_destroy() CREATED NONE SYNC
camera_start_preview() CREATED/CAPTURED PREVIEW SYNC
camera_stop_preview() PREVIEW CREATED SYNC
camera_start_capture() PREVIEW CAPTURING -> CAPTURED* SYNC

(*) The transition from the CAPTURING state to the CAPTURED state will be processed automatically.

Callback(Event) Operations

The callback mechanism is used to notify the application about significant camera events.

REGISTER UNREGISTER CALLBACK DESCRIPTION
camera_set_preview_cb() camera_unset_preview_cb() camera_preview_cb() This callback is used to display the preview (it delivers copies of previous frames)
camera_set_state_changed_cb() camera_unset_state_changed_cb() camera_state_changed_cb() This callback is used to notify that the camera state has changed. Not executed in the recorder mode
camera_set_focus_changed_cb() camera_unset_focus_changed_cb() camera_focus_changed_cb() This callback is used to notify that the camera has changed focus (and it is ready to shoot)
camera_set_error_cb() camera_unset_error_cb() camera_error_cb() This callback is used to notify that an error has occurred

Foreach Operations

Related Features

This API is related with the following features:

It is recommended to design feature related codes in your application for reliability.
You can check if a device supports the related features for this API by using System Information, thereby controlling the procedure of your application.
To ensure your application is only running on the device with specific features, please define the features in your manifest file using the manifest editor in the SDK.
More details on featuring your application can be found from Feature Element.

Functions

int camera_create (camera_device_e device, camera_h *camera)
 Creates a new camera handle for controlling a camera.
int camera_change_device (camera_h camera, camera_device_e device)
 Changes the camera device.
int camera_destroy (camera_h camera)
 Destroys the camera handle and releases all its resources.
int camera_start_preview (camera_h camera)
 Starts capturing and drawing preview frames on the screen.
int camera_stop_preview (camera_h camera)
 Stops capturing and drawing preview frames.
int camera_start_capture (camera_h camera, camera_capturing_cb capturing_cb, camera_capture_completed_cb completed_cb, void *user_data)
 Starts capturing of still images.
int camera_start_continuous_capture (camera_h camera, int count, int interval, camera_capturing_cb capturing_cb, camera_capture_completed_cb completed_cb, void *user_data)
 Starts continuously capturing still images.
int camera_stop_continuous_capture (camera_h camera)
 Aborts continuous capturing.
int camera_get_state (camera_h camera, camera_state_e *state)
 Gets the state of the camera.
int camera_start_focusing (camera_h camera, bool continuous)
 Starts camera auto-focusing, asynchronously.
int camera_cancel_focusing (camera_h camera)
 Stops camera auto focusing.
int camera_set_display (camera_h camera, camera_display_type_e type, camera_display_h display)
 Sets the display handle to show preview images.
int camera_set_preview_resolution (camera_h camera, int width, int height)
 Sets the resolution of the preview.
int camera_get_preview_resolution (camera_h camera, int *width, int *height)
 Gets the resolution of the preview.
int camera_get_recommended_preview_resolution (camera_h camera, int *width, int *height)
 Gets the recommended preview resolution.
int camera_start_face_detection (camera_h camera, camera_face_detected_cb callback, void *user_data)
 Starts face detection.
int camera_stop_face_detection (camera_h camera)
 Stops face detection.
int camera_set_display_reuse_hint (camera_h camera, bool hint)
 Sets the hint for display reuse.
int camera_get_display_reuse_hint (camera_h camera, bool *hint)
 Gets the hint for display reuse.
int camera_set_capture_resolution (camera_h camera, int width, int height)
 Sets the resolution of the captured image.
int camera_get_capture_resolution (camera_h camera, int *width, int *height)
 Gets the resolution of the captured image.
int camera_set_capture_format (camera_h camera, camera_pixel_format_e format)
 Sets the format of an image to be captured.
int camera_get_capture_format (camera_h camera, camera_pixel_format_e *format)
 Gets the format of the image to be captured.
int camera_set_preview_format (camera_h camera, camera_pixel_format_e format)
 Sets the preview data format.
int camera_get_preview_format (camera_h camera, camera_pixel_format_e *format)
 Gets the format of the preview stream.
int camera_get_facing_direction (camera_h camera, camera_facing_direction_e *facing_direction)
 Gets the facing direction of camera module.
int camera_get_flash_state (camera_device_e device, camera_flash_state_e *state)
 Gets the camera's flash state.
int camera_set_preview_cb (camera_h camera, camera_preview_cb callback, void *user_data)
 Registers a callback function to be called once per frame when previewing.
int camera_unset_preview_cb (camera_h camera)
 Unregisters the callback function.
int camera_set_media_packet_preview_cb (camera_h camera, camera_media_packet_preview_cb callback, void *user_data)
 Registers a media packet callback function to be called once per frame when previewing.
int camera_unset_media_packet_preview_cb (camera_h camera)
 Unregisters the media packet callback function.
int camera_set_state_changed_cb (camera_h camera, camera_state_changed_cb callback, void *user_data)
 Registers a callback function to be called when the camera state changes.
int camera_unset_state_changed_cb (camera_h camera)
 Unregisters the callback function.
int camera_set_interrupted_cb (camera_h camera, camera_interrupted_cb callback, void *user_data)
 Registers a callback function to be called when the camera is interrupted by policy.
int camera_unset_interrupted_cb (camera_h camera)
 Unregisters the callback function.
int camera_set_interrupt_started_cb (camera_h camera, camera_interrupt_started_cb callback, void *user_data)
 Registers a callback function to be called when the camera interrupt is started by policy.
int camera_unset_interrupt_started_cb (camera_h camera)
 Unregisters the callback function.
int camera_set_focus_changed_cb (camera_h camera, camera_focus_changed_cb callback, void *user_data)
 Registers a callback function to be called when the auto-focus state changes.
int camera_unset_focus_changed_cb (camera_h camera)
 Unregisters the callback function.
int camera_set_error_cb (camera_h camera, camera_error_cb callback, void *user_data)
 Registers a callback function to be called when an asynchronous operation error occurs.
int camera_unset_error_cb (camera_h camera)
 Unregisters the callback function.
int camera_get_device_state (camera_device_e device, camera_device_state_e *state)
 Gets the state of camera device.
int camera_add_device_state_changed_cb (camera_device_state_changed_cb callback, void *user_data, int *cb_id)
 Registers a callback function to be called when the camera device state changes.
int camera_remove_device_state_changed_cb (int cb_id)
 Unregisters the callback function.

Typedefs

typedef struct camera_cli_s * camera_h
 The Camera handle.
typedef void * camera_display_h
 The Camera display handle.
typedef void(* camera_state_changed_cb )(camera_state_e previous, camera_state_e current, bool by_policy, void *user_data)
 Called when the camera state is changed.
typedef void(* camera_device_state_changed_cb )(camera_device_e device, camera_device_state_e state, void *user_data)
 Called when the camera device state is changed.
typedef void(* camera_interrupted_cb )(camera_policy_e policy, camera_state_e previous, camera_state_e current, void *user_data)
 Called when the camera is interrupted by policy.
typedef void(* camera_interrupt_started_cb )(camera_policy_e policy, camera_state_e state, void *user_data)
 Called when the camera interrupt is started by policy.
typedef void(* camera_focus_changed_cb )(camera_focus_state_e state, void *user_data)
 Called when the camera focus state is changed.
typedef void(* camera_preview_cb )(camera_preview_data_s *frame, void *user_data)
 Called to register for notifications about delivering a copy of the new preview frame when every preview frame is displayed.
typedef void(* camera_media_packet_preview_cb )(media_packet_h pkt, void *user_data)
 Called to register for notifications about delivering media packet when every preview frame is displayed.
typedef void(* camera_capturing_cb )(camera_image_data_s *image, camera_image_data_s *postview, camera_image_data_s *thumbnail, void *user_data)
 Called to get information about image data taken by the camera once per frame while capturing.
typedef void(* camera_capture_completed_cb )(void *user_data)
 Called when the camera capturing completes.
typedef void(* camera_error_cb )(camera_error_e error, camera_state_e current_state, void *user_data)
 Called when an error occurs.
typedef void(* camera_face_detected_cb )(camera_detected_face_s *faces, int count, void *user_data)
 Called when a face is detected in the preview frame.

Defines

#define GET_DISPLAY(x)   (void*)(x)
 Gets a display handle.

Define Documentation

#define GET_DISPLAY (   x)    (void*)(x)

Gets a display handle.

Since :
2.3

Typedef Documentation

typedef void(* camera_capture_completed_cb)(void *user_data)

Called when the camera capturing completes.

Since :
2.3
Remarks:
The callback is called after camera_capturing_cb() is completed.
If you want to show the user a preview after capturing is finished,
an application can use camera_start_preview() after calling this callback.
Parameters:
[in]user_dataThe user data passed from the callback registration function
Precondition:
This callback function is invoked if it is registered using camera_start_capture() or camera_start_continuous_capture().
See also:
camera_start_capture()
camera_start_continuous_capture()
camera_capturing_cb()
typedef void(* camera_capturing_cb)(camera_image_data_s *image, camera_image_data_s *postview, camera_image_data_s *thumbnail, void *user_data)

Called to get information about image data taken by the camera once per frame while capturing.

Since :
2.3
Remarks:
This function is issued in the context of internal framework so the UI update code should not be directly invoked. You must not call camera_start_preview() within this callback.
Parameters:
[in]imageThe image data of the captured picture
[in]postviewThe image data of the postview
[in]thumbnailThe image data of the thumbnail (it should be NULL if the available thumbnail data does not exist)
[in]user_dataThe user data passed from the callback registration function
Precondition:
camera_start_capture() or camera_start_continuous_capture() will invoke this callback function if it is registered using camera_start_capture() or camera_start_continuous_capture().
See also:
camera_start_capture()
camera_start_continuous_capture()
camera_capture_completed_cb()
typedef void(* camera_device_state_changed_cb)(camera_device_e device, camera_device_state_e state, void *user_data)

Called when the camera device state is changed.

Since :
3.0
Parameters:
[in]deviceThe hardware camera type
[in]stateThe state of the camera device
[in]user_dataThe user data passed from the callback registration function
See also:
camera_add_device_state_changed_cb()
typedef void* camera_display_h

The Camera display handle.

Since :
2.3
typedef void(* camera_error_cb)(camera_error_e error, camera_state_e current_state, void *user_data)

Called when an error occurs.

Since :
2.3
Remarks:
This callback informs about a critical error situation.
When this callback is invoked, the user should release the resource and terminate the application.
In case of errors, one of these codes occur:
CAMERA_ERROR_DEVICE,
CAMERA_ERROR_INVALID_OPERATION,
CAMERA_ERROR_OUT_OF_MEMORY.
Parameters:
[in]errorThe error code
[in]current_stateThe current state of the camera
[in]user_dataThe user data passed from the callback registration function
Precondition:
This callback function is invoked if it is registered using camera_set_error_cb().
See also:
camera_set_error_cb()
camera_unset_error_cb()
typedef void(* camera_face_detected_cb)(camera_detected_face_s *faces, int count, void *user_data)

Called when a face is detected in the preview frame.

Since :
2.3
Parameters:
[in]facesThe detected face array
[in]countThe length of the array
[in]user_dataThe user data passed from the callback registration function
See also:
camera_start_face_detection()
typedef void(* camera_focus_changed_cb)(camera_focus_state_e state, void *user_data)

Called when the camera focus state is changed.

When the camera auto focus completes or a change to the focus state occurs, this callback is invoked.

Changes of focus state are as follows:
CAMERA_FOCUS_STATE_RELEASED -> start focusing -> CAMERA_FOCUS_STATE_ONGOING -> working -> CAMERA_FOCUS_STATE_FOCUSED or CAMERA_FOCUS_STATE_FAILED.

Since :
2.3
Parameters:
[in]stateThe current state of the auto-focus
[in]user_dataThe user data passed from the callback registration function
Precondition:
camera_start_focusing() will invoke this callback if you register it using camera_set_focus_changed_cb().
See also:
camera_set_focus_changed_cb()
camera_unset_focus_changed_cb()
camera_start_focusing()
camera_cancel_focusing()
typedef struct camera_cli_s* camera_h

The Camera handle.

Since :
2.3
See also:
recorder_create_videorecorder()
typedef void(* camera_interrupt_started_cb)(camera_policy_e policy, camera_state_e state, void *user_data)

Called when the camera interrupt is started by policy.

Since :
4.0
Remarks:
This callback is called before interrupt handling is started.
Parameters:
[in]policyThe policy that is interrupting the camera
[in]stateThe current state of the camera
[in]user_dataThe user data passed from the callback registration function
See also:
camera_set_interrupt_started_cb()
typedef void(* camera_interrupted_cb)(camera_policy_e policy, camera_state_e previous, camera_state_e current, void *user_data)

Called when the camera is interrupted by policy.

Since :
2.3
Remarks:
This callback is called after interrupt handling is completed.
Parameters:
[in]policyThe policy that interrupted the camera
[in]previousThe previous state of the camera
[in]currentThe current state of the camera
[in]user_dataThe user data passed from the callback registration function
See also:
camera_set_interrupted_cb()
typedef void(* camera_media_packet_preview_cb)(media_packet_h pkt, void *user_data)

Called to register for notifications about delivering media packet when every preview frame is displayed.

Since :
2.3
Remarks:
This function is issued in the context of internal framework so the UI update code should not be directly invoked.
If the camera is used as a recorder then this callback function won't be called.
and the packet should be released by media_packet_destroy() after use.
Parameters:
[in]pktReference pointer to media packet
[in]user_dataThe user data passed from the callback registration function
Precondition:
camera_start_preview() will invoke this callback function if you register this callback using camera_set_media_packet_preview_cb().
See also:
camera_start_preview()
camera_set_media_packet_preview_cb()
camera_unset_media_packet_preview_cb()
typedef void(* camera_preview_cb)(camera_preview_data_s *frame, void *user_data)

Called to register for notifications about delivering a copy of the new preview frame when every preview frame is displayed.

Since :
2.3
Remarks:
This function is issued in the context of internal framework so the UI update code should not be directly invoked.
If the camera is used as a recorder then this callback function won't be called.
Parameters:
[in]frameThe reference pointer to preview stream data
[in]user_dataThe user data passed from the callback registration function
Precondition:
camera_start_preview() will invoke this callback function if you register this callback using camera_set_preview_cb().
See also:
camera_start_preview()
camera_set_preview_cb()
camera_unset_preview_cb()
typedef void(* camera_state_changed_cb)(camera_state_e previous, camera_state_e current, bool by_policy, void *user_data)

Called when the camera state is changed.

Since :
2.3
Parameters:
[in]previousThe previous state of the camera
[in]currentThe current state of the camera
[in]by_policyIf true the state is changed by policy, otherwise false
[in]user_dataThe user data passed from the callback registration function
Precondition:
camera_start_preview(), camera_start_capture() or camera_stop_preview() will invoke this callback if you register this callback using camera_set_state_changed_cb().
See also:
camera_set_state_changed_cb()

Enumeration Type Documentation

Enumeration for the camera device.

Since :
2.3
Enumerator:
CAMERA_DEVICE_CAMERA0 

Primary camera

CAMERA_DEVICE_CAMERA1 

Secondary camera

CAMERA_DEVICE_CAMERA2 

Third camera (Since 5.0)

CAMERA_DEVICE_CAMERA3 

4th camera (Since 5.0)

CAMERA_DEVICE_CAMERA4 

5th camera (Since 5.0)

CAMERA_DEVICE_CAMERA5 

6th camera (Since 5.0)

CAMERA_DEVICE_CAMERA6 

7th camera (Since 5.0)

CAMERA_DEVICE_CAMERA7 

8th camera (Since 5.0)

CAMERA_DEVICE_CAMERA8 

9th camera (Since 5.0)

CAMERA_DEVICE_CAMERA9 

10th camera (Since 5.0)

Enumeration for the camera device state.

Since :
3.0
Enumerator:
CAMERA_DEVICE_STATE_NULL 

Not opened

CAMERA_DEVICE_STATE_OPENED 

Opened

CAMERA_DEVICE_STATE_WORKING 

Now previewing or capturing or is being used for video recording

Enumeration for the camera display type.

Since :
2.3
Enumerator:
CAMERA_DISPLAY_TYPE_OVERLAY 

Overlay surface display

CAMERA_DISPLAY_TYPE_EVAS 

Evas object surface display

CAMERA_DISPLAY_TYPE_NONE 

This disposes off buffers

Enumeration for the error codes of Camera.

Since :
2.3
Enumerator:
CAMERA_ERROR_NONE 

Successful

CAMERA_ERROR_INVALID_PARAMETER 

Invalid parameter

CAMERA_ERROR_INVALID_STATE 

Invalid state

CAMERA_ERROR_OUT_OF_MEMORY 

Out of memory

CAMERA_ERROR_DEVICE 

Device error

CAMERA_ERROR_INVALID_OPERATION 

Internal error

CAMERA_ERROR_SECURITY_RESTRICTED 

Restricted by security system policy

CAMERA_ERROR_DEVICE_BUSY 

The device is using another application or working on some operation

CAMERA_ERROR_DEVICE_NOT_FOUND 

No camera device

CAMERA_ERROR_ESD 

ESD situation

CAMERA_ERROR_PERMISSION_DENIED 

The access to the resources can not be granted

CAMERA_ERROR_NOT_SUPPORTED 

The feature is not supported

CAMERA_ERROR_RESOURCE_CONFLICT 

Blocked by resource conflict (Since 3.0)

CAMERA_ERROR_SERVICE_DISCONNECTED 

Socket connection lost (Since 3.0)

Enumeration for the facing direction of camera module.

Since :
3.0
Enumerator:
CAMERA_FACING_DIRECTION_REAR 

Rear

CAMERA_FACING_DIRECTION_FRONT 

Front

Enumeration for the current flash state.

Since :
3.0
Enumerator:
CAMERA_FLASH_STATE_NOT_USED 

Flash is not used now through camera API

CAMERA_FLASH_STATE_USED 

Flash is used now through camera API

Enumeration for the camera flip type.

Since :
2.3
Enumerator:
CAMERA_FLIP_NONE 

No Flip

CAMERA_FLIP_HORIZONTAL 

Horizontal flip

CAMERA_FLIP_VERTICAL 

Vertical flip

CAMERA_FLIP_BOTH 

Horizontal and vertical flip

Enumeration for the camera focus state.

Since :
2.3
Enumerator:
CAMERA_FOCUS_STATE_RELEASED 

Focus released

CAMERA_FOCUS_STATE_ONGOING 

Focus in progress

CAMERA_FOCUS_STATE_FOCUSED 

Focus succeeded

CAMERA_FOCUS_STATE_FAILED 

Focus failed

Enumeration for the camera pixel format.

Since :
2.3
Remarks:
If CAMERA_PIXEL_FORMAT_INVZ is set, the type of display should be CAMERA_DISPLAY_TYPE_NONE.
Otherwise, camera_start_preview() will return CAMERA_ERROR_INVALID_OPERATION. (Since 5.0)
Enumerator:
CAMERA_PIXEL_FORMAT_INVALID 

Invalid pixel format

CAMERA_PIXEL_FORMAT_NV12 

NV12 pixel format

CAMERA_PIXEL_FORMAT_NV12T 

NV12 Tiled pixel format

CAMERA_PIXEL_FORMAT_NV16 

NV16 pixel format

CAMERA_PIXEL_FORMAT_NV21 

NV21 pixel format

CAMERA_PIXEL_FORMAT_YUYV 

YUYV(YUY2) pixel format

CAMERA_PIXEL_FORMAT_UYVY 

UYVY pixel format

CAMERA_PIXEL_FORMAT_422P 

YUV422(Y:U:V) planar pixel format

CAMERA_PIXEL_FORMAT_I420 

I420 pixel format

CAMERA_PIXEL_FORMAT_YV12 

YV12 pixel format

CAMERA_PIXEL_FORMAT_RGB565 

RGB565 pixel format

CAMERA_PIXEL_FORMAT_RGB888 

RGB888 pixel format

CAMERA_PIXEL_FORMAT_RGBA 

RGBA pixel format

CAMERA_PIXEL_FORMAT_ARGB 

ARGB pixel format

CAMERA_PIXEL_FORMAT_JPEG 

Encoded pixel format

CAMERA_PIXEL_FORMAT_H264 

Encoded pixel format : H264 (Since 3.0)

CAMERA_PIXEL_FORMAT_INVZ 

Depth pixel format : INVZ (Since 5.0)

Enumeration for the camera policy.

Since :
2.3
Enumerator:
CAMERA_POLICY_NONE 

None

CAMERA_POLICY_SECURITY 

Security policy

CAMERA_POLICY_RESOURCE_CONFLICT 

Resource conflict (Since 3.0)

Enumeration for the camera rotation type.

Since :
2.3
Enumerator:
CAMERA_ROTATION_NONE 

No rotation

CAMERA_ROTATION_90 

90 degree rotation

CAMERA_ROTATION_180 

180 degree rotation

CAMERA_ROTATION_270 

270 degree rotation

Enumeration for the camera state.

Since :
2.3
Enumerator:
CAMERA_STATE_NONE 

Before creating

CAMERA_STATE_CREATED 

Created, but not initialized yet

CAMERA_STATE_PREVIEW 

Preview

CAMERA_STATE_CAPTURING 

While capturing

CAMERA_STATE_CAPTURED 

After capturing


Function Documentation

int camera_add_device_state_changed_cb ( camera_device_state_changed_cb  callback,
void *  user_data,
int *  cb_id 
)

Registers a callback function to be called when the camera device state changes.

Since :
3.0
Parameters:
[in]callbackThe callback function to register
[in]user_dataThe user data to be passed to the callback function
[out]cb_idThe id of registered callback
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_OUT_OF_MEMORYOut of memory
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
Postcondition:
This function will invoke camera_device_state_changed_cb() when the camera device's state changes.
See also:
camera_remove_device_state_changed_cb()
camera_device_state_changed_cb()

Stops camera auto focusing.

Since :
2.3
Privilege Level:
public
Privilege:
http://tizen.org/privilege/camera
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_PREVIEW.
See also:
camera_start_focusing()
camera_focus_changed_cb()
int camera_change_device ( camera_h  camera,
camera_device_e  device 
)

Changes the camera device.

Since :
3.0
Remarks:
This function can be used to change camera device simply without camera_destroy() and camera_create().
If display reuse hint is set by camera_set_display_reuse_hint() before stopping the preview,
display handle will be reused and last frame on display can be kept even though camera device is changed.
Parameters:
[in]cameraThe handle to the camera
[in]deviceThe hardware camera to access
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_OUT_OF_MEMORYOut of memory
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_CREATED.
Postcondition:
If it succeeds, the camera attributes and settings will be reset.
See also:
camera_set_display_reuse_hint()
camera_get_display_reuse_hint()
int camera_create ( camera_device_e  device,
camera_h camera 
)

Creates a new camera handle for controlling a camera.

Since :
2.3
Remarks:
Multiple handles on a context at the same time are allowed to be created. However, camera cannot guarantee proper operation because of limited resources, such as camera device, audio device, and display device.
. A camera must be released using camera_destroy().
The privilege http://tizen.org/privilege/camera is not required since 4.0,
but it is required in all earlier versions.
Parameters:
[in]deviceThe hardware camera to access
[out]cameraA newly returned handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_OUT_OF_MEMORYOut of memory
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
Postcondition:
If it succeeds, the camera state will be CAMERA_STATE_CREATED.
See also:
camera_destroy()
int camera_destroy ( camera_h  camera)

Destroys the camera handle and releases all its resources.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
See also:
camera_create()

Gets the format of the image to be captured.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
[out]formatThe format of the image to be captured
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_set_capture_format()
camera_foreach_supported_capture_format()
int camera_get_capture_resolution ( camera_h  camera,
int *  width,
int *  height 
)

Gets the resolution of the captured image.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
[out]widthThe capture width
[out]heightThe capture height
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_set_capture_resolution()
camera_foreach_supported_capture_resolution()

Gets the state of camera device.

Since :
3.0
Parameters:
[in]deviceThe hardware camera type
[out]stateThe current state of the device
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
int camera_get_display_reuse_hint ( camera_h  camera,
bool *  hint 
)

Gets the hint for display reuse.

Since :
3.0
Remarks:
If the current display type is CAMERA_DISPLAY_TYPE_NONE, this function will return CAMERA_ERROR_INVALID_OPERATION.
Parameters:
[in]cameraThe handle to the camera
[out]hintThe hint for display reuse; true - reuse the display, false - do not reuse
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_OPERATIONInternal error
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_set_display_reuse_hint()
camera_change_device()
int camera_get_facing_direction ( camera_h  camera,
camera_facing_direction_e facing_direction 
)

Gets the facing direction of camera module.

Since :
3.0
Parameters:
[in]cameraThe handle to the camera
[out]facing_directionThe facing direction of camera module
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_OPERATIONInternal error
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected

Gets the camera's flash state.

Since :
3.0
Parameters:
[in]deviceThe hardware camera to access
[out]stateThe current flash state
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_OPERATIONInternal error
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
See also:
camera_attr_set_flash_mode()
camera_attr_get_flash_mode()

Gets the format of the preview stream.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
[out]formatThe preview data format
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_set_preview_format()
camera_foreach_supported_preview_format()
int camera_get_preview_resolution ( camera_h  camera,
int *  width,
int *  height 
)

Gets the resolution of the preview.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
[out]widthThe preview width
[out]heightThe preview height
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_set_preview_resolution()
camera_foreach_supported_preview_resolution()
int camera_get_recommended_preview_resolution ( camera_h  camera,
int *  width,
int *  height 
)

Gets the recommended preview resolution.

Since :
2.3
Remarks:
Depending on the capture resolution aspect ratio and display resolution, the recommended preview resolution is determined.
Parameters:
[in]cameraThe handle to the camera
[out]widthThe preview width
[out]heightThe preview height
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_set_preview_resolution()
camera_foreach_supported_preview_resolution()
int camera_get_state ( camera_h  camera,
camera_state_e state 
)

Gets the state of the camera.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
[out]stateThe current state of the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_create()
camera_start_preview()
camera_stop_preview()
camera_start_capture()

Unregisters the callback function.

Since :
3.0
Parameters:
[in]cb_idThe id of registered callback
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
See also:
camera_add_device_state_changed_cb()

Sets the format of an image to be captured.

Since :
2.3
Remarks:
This function should be called before capturing (see camera_start_capture()).
Parameters:
[in]cameraThe handle to the camera
[out]formatThe format of the image to be captured
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_CREATED or CAMERA_STATE_PREVIEW.
See also:
camera_start_capture()
camera_get_capture_format()
camera_foreach_supported_capture_format()
int camera_set_capture_resolution ( camera_h  camera,
int  width,
int  height 
)

Sets the resolution of the captured image.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
[in]widthThe capture width
[in]heightThe capture height
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_CREATED or CAMERA_STATE_PREVIEW.
See also:
camera_start_capture()
camera_get_capture_resolution()
camera_foreach_supported_capture_resolution()
int camera_set_display ( camera_h  camera,
camera_display_type_e  type,
camera_display_h  display 
)

Sets the display handle to show preview images.

Since :
2.3
Remarks:
This function must be called before previewing (see camera_start_preview()). In Custom ROI display mode, camera_attr_set_display_roi_area() function must be called before calling this function.
This function must be called in main thread of the application. Otherwise, it will return CAMERA_ERROR_INVALID_OPERATION by internal restriction. To avoid CAMERA_ERROR_INVALID_OPERATION in sub thread, ecore_thread_main_loop_begin() and ecore_thread_main_loop_end() can be used, but deadlock can occur if the main thread is busy. So, it's not recommended to use them. (Since 5.0)
Parameters:
[in]cameraThe handle to the camera
[in]typeThe display type
[in]displayThe display handle from GET_DISPLAY
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_CREATED.
See also:
camera_start_preview()
GET_DISPLAY
ecore_thread_main_loop_begin()
ecore_thread_main_loop_end()
int camera_set_display_reuse_hint ( camera_h  camera,
bool  hint 
)

Sets the hint for display reuse.

If the hint is set to true, the display will be reused when the camera device is changed with camera_change_device().

Since :
3.0
Remarks:
If the current display type is CAMERA_DISPLAY_TYPE_NONE, this function will return CAMERA_ERROR_INVALID_OPERATION.
Parameters:
[in]cameraThe handle to the camera
[in]hintThe hint for display reuse; true - reuse the display, false - do not reuse
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_INVALID_OPERATIONInternal error
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_PREVIEW.
See also:
camera_get_display_reuse_hint()
camera_change_device()
int camera_set_error_cb ( camera_h  camera,
camera_error_cb  callback,
void *  user_data 
)

Registers a callback function to be called when an asynchronous operation error occurs.

Since :
2.3
Remarks:
This callback informs about a critical error situation.
When this callback is invoked, the user should release the resource and terminate the application.
In case of errors, one of the following codes will occur:
CAMERA_ERROR_DEVICE,
CAMERA_ERROR_INVALID_OPERATION,
CAMERA_ERROR_OUT_OF_MEMORY.
Parameters:
[in]cameraThe handle to the camera
[in]callbackThe callback function to register
[in]user_dataThe user data to be passed to the callback function
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Postcondition:
This function will invoke camera_error_cb() when an asynchronous operation error occurs.
See also:
camera_unset_error_cb()
camera_error_cb()
int camera_set_focus_changed_cb ( camera_h  camera,
camera_focus_changed_cb  callback,
void *  user_data 
)

Registers a callback function to be called when the auto-focus state changes.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
[in]callbackThe callback function to register
[in]user_dataThe user data to be passed to the callback function
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Postcondition:
This function will invoke camera_focus_changed_cb() when the auto-focus state changes.
See also:
camera_start_focusing()
camera_cancel_focusing()
camera_unset_focus_changed_cb()
camera_focus_changed_cb()
int camera_set_interrupt_started_cb ( camera_h  camera,
camera_interrupt_started_cb  callback,
void *  user_data 
)

Registers a callback function to be called when the camera interrupt is started by policy.

Since :
4.0
Parameters:
[in]cameraThe handle to the camera
[in]callbackThe callback function to register
[in]user_dataThe user data to be passed to the callback function
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
See also:
camera_unset_interrupt_started_cb()
camera_interrupt_started_cb()
int camera_set_interrupted_cb ( camera_h  camera,
camera_interrupted_cb  callback,
void *  user_data 
)

Registers a callback function to be called when the camera is interrupted by policy.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
[in]callbackThe callback function to register
[in]user_dataThe user data to be passed to the callback function
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_unset_interrupted_cb()
camera_interrupted_cb()
int camera_set_media_packet_preview_cb ( camera_h  camera,
camera_media_packet_preview_cb  callback,
void *  user_data 
)

Registers a media packet callback function to be called once per frame when previewing.

Since :
2.3
Remarks:
This callback does not work in video recorder mode.
This function should be called before previewing (see camera_start_preview())
A registered callback is called on the internal thread of the camera.
A video frame can be retrieved using a registered callback as a media packet.
The callback function holds the same buffer that will be drawn on the display device.
So if you change the media packet in a registered callback, it will be displayed on the device
and the media packet is available until it's destroyed by media_packet_destroy().
Parameters:
[in]cameraThe handle to the camera
[in]callbackThe callback function to be registered
[in]user_dataThe user data to be passed to the callback function
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera's state should be CAMERA_STATE_CREATED.
See also:
camera_start_preview()
camera_unset_media_packet_preview_cb()
camera_media_packet_preview_cb()
int camera_set_preview_cb ( camera_h  camera,
camera_preview_cb  callback,
void *  user_data 
)

Registers a callback function to be called once per frame when previewing.

Since :
2.3
Remarks:
This callback does not work in the video recorder mode.
Before 4.0, the only allowed state for calling this function was CAMERA_STATE_CREATED.
Since 4.0, CAMERA_STATE_PREVIEW has been added as an allowed state,
so that this function could be called before previewing or even while previewing.
A registered callback is called on the internal thread of the camera.
A video frame can be retrieved using a registered callback,
and the buffer is only available in a registered callback.
Since tizen 3.0, if you change the buffer in a registered callback,
it could not be displayed on the device in case of copied buffer.
and if camera_is_supported_media_packet_preview_cb() returns false,
it's copied buffer case.
Parameters:
[in]cameraThe handle to the camera
[in]callbackThe callback function to be registered
[in]user_dataThe user data to be passed to the callback function
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
Before 4.0 : The camera state must be set to CAMERA_STATE_CREATED.
Since 4.0 : The camera state must be set to CAMERA_STATE_CREATED or CAMERA_STATE_PREVIEW.
See also:
camera_start_preview()
camera_unset_preview_cb()
camera_preview_cb()

Sets the preview data format.

Since :
2.3
Remarks:
This function should be called before previewing (see camera_start_preview()).
Parameters:
[in]cameraThe handle to the camera
[in]formatThe preview data format
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_CREATED.
See also:
camera_start_preview()
camera_get_preview_format()
camera_foreach_supported_preview_format()
int camera_set_preview_resolution ( camera_h  camera,
int  width,
int  height 
)

Sets the resolution of the preview.

Since :
2.3
Remarks:
This function should be called before previewing (camera_start_preview()).
Parameters:
[in]cameraThe handle to the camera
[in]widthThe preview width
[in]heightThe preview height
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_CREATED or CAMERA_STATE_PREVIEW.
See also:
camera_start_preview()
camera_get_preview_resolution()
camera_foreach_supported_preview_resolution()
int camera_set_state_changed_cb ( camera_h  camera,
camera_state_changed_cb  callback,
void *  user_data 
)

Registers a callback function to be called when the camera state changes.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
[in]callbackThe callback function to register
[in]user_dataThe user data to be passed to the callback function
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Postcondition:
This function will invoke camera_state_changed_cb() when the camera state changes.
See also:
camera_unset_state_changed_cb()
camera_state_changed_cb()
int camera_start_capture ( camera_h  camera,
camera_capturing_cb  capturing_cb,
camera_capture_completed_cb  completed_cb,
void *  user_data 
)

Starts capturing of still images.

Since :
2.3
Privilege Level:
public
Privilege:
http://tizen.org/privilege/camera
Remarks:
This function causes the transition of the camera state from CAMERA_STATE_CAPTURING to CAMERA_STATE_CAPTURED automatically
and the corresponding callback function camera_capturing_cb() and camera_capture_completed_cb() will be invoked
The captured image will be delivered through camera_capturing_cb().
camera_capture_completed_cb() callback notifies about completion of camera_capturing_cb().
The camera's preview should be restarted by calling camera_start_preview().
Parameters:
[in]cameraThe handle to the camera
[in]capturing_cbThe callback for capturing data
[in]completed_cbThe callback for notification of completion
[in]user_dataThe user data
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_PREVIEW.
If needed, modify capture resolution(camera_set_capture_resolution()), capture format(camera_set_capture_format()), or image quality(camera_attr_set_image_quality()).
Postcondition:
If it succeeds the camera state will be CAMERA_STATE_CAPTURED.
See also:
camera_start_preview()
camera_start_continuous_capture();
camera_foreach_supported_capture_resolution()
camera_set_capture_resolution()
camera_get_capture_resolution()
camera_foreach_supported_capture_format()
camera_set_capture_format()
camera_get_capture_format()
camera_attr_set_image_quality()
camera_attr_get_image_quality()
int camera_start_continuous_capture ( camera_h  camera,
int  count,
int  interval,
camera_capturing_cb  capturing_cb,
camera_capture_completed_cb  completed_cb,
void *  user_data 
)

Starts continuously capturing still images.

Since :
2.3
Privilege Level:
public
Privilege:
http://tizen.org/privilege/camera
Remarks:
If this is not supported zero shutter lag occurs. The capture resolution could be changed to the preview resolution.
This function causes the transition of the camera state from CAMERA_STATE_CAPTURING to CAMERA_STATE_CAPTURED automatically
and the corresponding callback function camera_capturing_cb() and camera_capture_completed_cb() will be invoked
Each Captured image will be delivered through camera_capturing_cb().
The camera_capture_completed_cb() callback notifies about the completion of an entire capture.
The camera's preview should be restarted by calling camera_start_preview().
.
Parameters:
[in]cameraThe handle to the camera
[in]countThe number of still images
[in]intervalThe interval of the capture (millisecond)
[in]capturing_cbThe callback for capturing data
[in]completed_cbThe callback for notification of completion
[in]user_dataThe user data
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Postcondition:
If it succeeds the camera state will be CAMERA_STATE_CAPTURED.
See also:
camera_start_preview()
camera_start_capture();
camera_stop_continuous_capture()
camera_is_supported_zero_shutter_lag()
int camera_start_face_detection ( camera_h  camera,
camera_face_detected_cb  callback,
void *  user_data 
)

Starts face detection.

Since :
2.3
Privilege Level:
public
Privilege:
http://tizen.org/privilege/camera
Remarks:
This should be called after the preview is started.
This callback will be invoked when the face is detected in the preview frame.
Internally it starts continuous focus and focusing on the detected face.
When face detection is running, the camera_start_focusing(), camera_cancel_focusing(), camera_attr_set_af_mode(), camera_attr_set_af_area(), camera_attr_set_exposure_mode(), and camera_attr_set_whitebalance() settings are ignored.
If camera_stop_preview() is invoked, face detection is stopped and then preview is resumed using camera_start_preview(), this method should be called again to resume face detection.
Parameters:
[in]cameraThe handle to the camera
[in]callbackThe callback to notify face detection
[in]user_dataThe user data to be passed to the callback function
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATENot preview state
CAMERA_ERROR_INVALID_OPERATIONNot supported this feature
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be CAMERA_STATE_PREVIEW.
See also:
camera_stop_face_detection()
camera_face_detected_cb()
camera_is_supported_face_detection()
int camera_start_focusing ( camera_h  camera,
bool  continuous 
)

Starts camera auto-focusing, asynchronously.

Since :
2.3
Privilege Level:
public
Privilege:
http://tizen.org/privilege/camera
Remarks:
If continuous status is true, the camera continuously tries to focus.
Parameters:
[in]cameraThe handle to the camera
[in]continuousThe status of continuous focusing
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_PREVIEW.
Postcondition:
The camera focus state will be CAMERA_FOCUS_STATE_ONGOING.
See also:
camera_cancel_focusing()
camera_set_focus_changed_cb()
camera_focus_changed_cb()
camera_attr_set_af_mode()
int camera_start_preview ( camera_h  camera)

Starts capturing and drawing preview frames on the screen.

Since :
2.3
Privilege Level:
public
Privilege:
http://tizen.org/privilege/camera
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_RESOURCE_CONFLICTResource conflict error
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_DEVICE_BUSYThe device is being used in another application or is performing other operations
CAMERA_ERROR_DEVICE_NOT_FOUNDNo camera device
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_CREATED or CAMERA_STATE_CAPTURED.
You must set the display handle.
If needed, modify preview FPS(camera_attr_set_preview_fps()), preview resolution(camera_set_preview_resolution()), or preview format(camera_set_preview_format()).
Postcondition:
If it succeeds, the camera state will be CAMERA_STATE_PREVIEW.
camera_preview_cb() will be called when preview image data becomes available.
See also:
camera_stop_preview()
camera_set_display()
camera_set_preview_cb()
camera_set_media_packet_preview_cb()
camera_foreach_supported_preview_resolution()
camera_set_preview_resolution()
camera_get_preview_resolution()
camera_foreach_supported_preview_format()
camera_set_preview_format()
camera_get_preview_format()
camera_attr_foreach_supported_fps()
camera_attr_set_preview_fps()
camera_attr_get_preview_fps()

Aborts continuous capturing.

Since :
2.3
Privilege Level:
public
Privilege:
http://tizen.org/privilege/camera
Remarks:
The camera state will be changed to CAMERA_STATE_CAPTURED.
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_PREVIEW.
See also:
camera_start_continuous_capture()

Stops face detection.

Since :
2.3
Privilege Level:
public
Privilege:
http://tizen.org/privilege/camera
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
This should be called after face detection is started.
See also:
camera_start_face_detection()
camera_is_supported_face_detection()
int camera_stop_preview ( camera_h  camera)

Stops capturing and drawing preview frames.

Since :
2.3
Privilege Level:
public
Privilege:
http://tizen.org/privilege/camera
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_INVALID_STATEInvalid state
CAMERA_ERROR_INVALID_OPERATIONInvalid operation
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
Precondition:
The camera state must be set to CAMERA_STATE_PREVIEW.
Postcondition:
The camera state will be CAMERA_STATE_CREATED.
See also:
camera_start_preview()
camera_unset_preview_cb()
camera_unset_media_packet_preview_cb()

Unregisters the callback function.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_set_error_cb()

Unregisters the callback function.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_set_focus_changed_cb()

Unregisters the callback function.

Since :
4.0
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
See also:
camera_set_interrupt_started_cb()

Unregisters the callback function.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_set_interrupted_cb()

Unregisters the media packet callback function.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_set_media_packet_preview_cb()

Unregisters the callback function.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_set_preview_cb()

Unregisters the callback function.

Since :
2.3
Parameters:
[in]cameraThe handle to the camera
Returns:
0 on success, otherwise a negative error value
Return values:
CAMERA_ERROR_NONESuccessful
CAMERA_ERROR_INVALID_PARAMETERInvalid parameter
CAMERA_ERROR_PERMISSION_DENIEDThe access to the resources can not be granted
CAMERA_ERROR_NOT_SUPPORTEDThe feature is not supported
CAMERA_ERROR_SERVICE_DISCONNECTEDThe socket to multimedia server is disconnected
See also:
camera_set_state_changed_cb()