DEVA DEVA028, Руководство пользователя

Страница: 42 / 49

content of an image.
result U32 0 = Operation failed
1 = Operation completed
Set up a capture stream for automatic rendering to an application defined window.
This function is the principle method to setup and configure a capture stream for
rendering to an application defined window on a capture channel previously returned by a
call to the
alloc_capture function.
The image capture is triggered repeatedly on a regular timed basis with the frame rate
determined by the
rate parameter.
The dest parameter specifies the size and position of a window on the application screen
where the capture stream will be rendered.
The cam parameter determines the size and position of the image to be captured and
may be used to pan a capture window around the image sensor. The res parameter sets
the pixel skip and modes so that lower resolution images may be captured at higher
speeds.
The default post-process brightness and contrast that are to be applied to the colour
content of an image are set by the
adj parameter whilst default camera gain and
integration_time are also specified for the stream. The setup_auto_adjust function may
be used to change these parameters automatically to improve image quality
3.7.2 set_capture_render_config
result set_capture_render_config (capture, config)
Parameter Type Description
capture U32 The handle of the capture stream.
config HDL
Handle to a CAPTURE_RENDER_CONFIG
structure that defines configuration to be used.
result U32 0 = Operation failed
1 = Operation completed
Sets the capture rendering function configuration for the capture stream.
This function may be used to change the default values of the capture rendering
functions configuration for the specified capture stream.
A corresponding call to get_capture_render_config may be made to read the current
configuration.