
#include <twl/camera.h>CAMERAResult CAMERA_I2CSize(CAMERASelect camera, CAMERASize size); CAMERAResult CAMERA_I2CSizeAsync(CAMERASelect camera, CAMERASize size, CAMERACallback callback, void *arg); CAMERAResult CAMERA_I2CSizeEx(CAMERASelect camera, CAMERAContext context, CAMERASize size); CAMERAResult CAMERA_I2CSizeExAsync(CAMERASelect camera, CAMERAContext context, CAMERASize size, CAMERACallback callback, void *arg);
| camera | Camera to configure (CAMERA_SELECT_IN, CAMERA_SELECT_OUT, or CAMERA_SELECT_BOTH). |
| context | Context to change. |
| size | Camera resolution. |
| callback | Function that is called when asynchronous processing has completed. |
| arg | Arguments when the callback function is invoked. |
Returns CAMERA_RESULT_SUCCESS if configuration was successful.
Changes the camera resolution.
The CAMERA_I2CSizeEx function is used to change the setting with a specified context. The non-Ex functions change the setting for both context A and B. See CAMERAContext for information on contexts.
Unlike CAMERA_I2CSize, the CAMERA_I2CSizeAsync function returns control immediately and runs asynchronously. Use callback to confirm that processing has completed.
Do not set CAMERA_SIZE_VGA in this function while either CAMERA_FRAME_RATE_30_TO_5 or CAMERA_FRAME_RATE_30 is specified with the CAMERA_I2CFrameRate* functions. Capture data becomes impossible to receive if these settings are made at the same time.
Note:
If camera settings are changed using any of the CAMERA_I2C* functions, the changes may be delayed for approximately one frame before they are applied. Consequently, note that if camera settings are changed while capturing, the application may not be able to get an updated image (an image with changes applied) at the time the application intended.
CAMERASelect
CAMERAContext
CAMERASize
CAMERACallback
CAMERAResult
2009/03/25 Added a note on changes to camera settings during capture operations.
2008/10/30 Noted that CAMERA_SELECT_BOTH can also be specified.
2008/01/23 Explained that images cannot be captured at 30 fps for the VGA size.
2007/10/12 Initial version.
CONFIDENTIAL