
#include <twl/camera.h>CAMERAResult CAMERA_I2CFrameRate(CAMERASelect camera, CAMERAFrameRate rate); CAMERAResult CAMERA_I2CFrameRateAsync(CAMERASelect camera, CAMERAFrameRate rate, CAMERACallback callback, void *arg);
| camera | Camera to configure (CAMERA_SELECT_IN, CAMERA_SELECT_OUT, or CAMERA_SELECT_BOTH). |
| rate | Frame rate. |
| 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's frame rate.
Unlike CAMERA_I2CFrameRate, the CAMERA_I2CFrameRateAsync function returns control immediately and runs asynchronously. Use callback to confirm that processing has completed.
Do not set CAMERA_FRAME_RATE_30_TO_5 or CAMERA_FRAME_RATE_30 with this function while either CAMERA_SIZE_VGA or CAMERA_SIZE_DS_LCDx4 is specified with the CAMERA_I2CSize* functions. Capture data becomes impossible to receive if these settings are used 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 image with the changes applied at the time the application intended.
CAMERASelect
CAMERACallback
CAMERAResult
CAMERAFrameRate
CAMERA_I2CSize*
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.
2008/03/17 Explained that images cannot be captured at 30 fps for the DS_LCDx4 size.
2008/01/23 Explained that images cannot be captured at 30 fps for the VGA size.
2007/11/12 Initial version.
CONFIDENTIAL