video_thread.h File Reference

Start a Video thread and grab images. More...

#include "std.h"

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Data Structures
struct	video_thread_t

Functions
void	video_thread_init (void)
	Initialize the view video. More...
void	video_thread_periodic (void)
	A dummy for now. More...
void	video_thread_start (void)
	Start with streaming. More...
void	video_thread_stop (void)
	Stops the streaming This could take some time, because the thread is stopped asynchronous. More...
void	video_thread_take_shot (bool_t take)
	Take a shot and save it This will only work when the streaming is enabled. More...

Variables
struct video_thread_t	video_thread
	Dummy C implementation for simulation The V4L2 could also work in simulation, but must be adapted a bit. More...

Detailed Description

Start a Video thread and grab images.

Works on Linux platforms

Definition in file video_thread.h.

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Data Structure Documentation

struct video_thread_t

Definition at line 36 of file video_thread.h.

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Data Fields
struct v4l2_device *	dev	The V4L2 device that is used for the video stream.
uint8_t	fps	The amount of frames per second.
volatile bool_t	is_running	When the device is running.
uint16_t	shot_number	The last shot number.
volatile bool_t	take_shot	Wether to take an image.

Function Documentation

void video_thread_init

(

void

)

Initialize the view video.

Definition at line 234 of file video_thread.c.

References video_config_t::buf_cnt, video_thread_t::dev, video_config_t::dev_name, video_config_t::format, video_config_t::h, video_config_t::subdev_name, v4l2_init(), v4l2_init_subdev(), VIDEO_THREAD_CAMERA, VIDEO_THREAD_SHOT_PATH, and video_config_t::w.

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void video_thread_periodic

(

void

)

A dummy for now.

Definition at line 98 of file video_thread.c.

References image_t::buf, cv_run(), image_t::h, image_create(), image_free(), IMAGE_YUV422, video_thread_t::is_running, p, and image_t::w.

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void video_thread_start

(

void

)

Start with streaming.

Definition at line 266 of file video_thread.c.

References video_thread_t::is_running, VIDEO_THREAD_CAMERA, and video_thread_function().

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void video_thread_stop

(

void

)

Stops the streaming This could take some time, because the thread is stopped asynchronous.

Definition at line 285 of file video_thread.c.

References video_thread_t::dev, FALSE, video_thread_t::is_running, v4l2_device::name, and v4l2_stop_capture().

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void video_thread_take_shot

(

bool_t

take

)

Take a shot and save it This will only work when the streaming is enabled.

Definition at line 308 of file video_thread.c.

References video_thread_t::take_shot.

Referenced by cv_blob_locator_periodic(), and dc_send_command().

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Variable Documentation

struct video_thread_t video_thread

Dummy C implementation for simulation The V4L2 could also work in simulation, but must be adapted a bit.

Definition at line 101 of file video_thread.c.