libavdevice/bktr.c File Reference

#include "libavformat/avformat.h"
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <signal.h>
#include <stdint.h>
#include <strings.h>

Go to the source code of this file.

Data Structures
struct	VideoData
Defines
#define	_BSD_SOURCE   1
#define	_NETBSD_SOURCE
#define	PAL   1
#define	PALBDGHI   1
#define	NTSC   2
#define	NTSCM   2
#define	SECAM   3
#define	PALN   4
#define	PALM   5
#define	NTSCJ   6
#define	PAL_HEIGHT   576
#define	SECAM_HEIGHT   576
#define	NTSC_HEIGHT   480
#define	VIDEO_FORMAT   NTSC
Functions
static void	catchsignal (int signal)
static av_cold int	bktr_init (const char *video_device, int width, int height, int format, int *video_fd, int *tuner_fd, int idev, double frequency)
static void	bktr_getframe (uint64_t per_frame)
static int	grab_read_packet (AVFormatContext *s1, AVPacket *pkt)
static int	grab_read_header (AVFormatContext *s1, AVFormatParameters *ap)
static int	grab_read_close (AVFormatContext *s1)
Variables
static int	bktr_dev []
uint8_t *	video_buf
size_t	video_buf_size
uint64_t	last_frame_time
volatile sig_atomic_t	nsignals
AVInputFormat	bktr_demuxer

---

Define Documentation

#define _BSD_SOURCE   1

Definition at line 27 of file bktr.c.

#define _NETBSD_SOURCE

Definition at line 28 of file bktr.c.

#define NTSC   2

Definition at line 64 of file bktr.c.

Referenced by bktr_init(), grab_read_header(), and opt_target().

#define NTSC_HEIGHT   480

Definition at line 74 of file bktr.c.

Referenced by bktr_init().

#define NTSCJ   6

Definition at line 69 of file bktr.c.

Referenced by bktr_init().

#define NTSCM   2

Definition at line 65 of file bktr.c.

#define PAL   1

Definition at line 62 of file bktr.c.

Referenced by bktr_init(), grab_read_header(), and opt_target().

#define PAL_HEIGHT   576

Definition at line 72 of file bktr.c.

Referenced by bktr_init().

#define PALBDGHI   1

Definition at line 63 of file bktr.c.

#define PALM   5

Definition at line 68 of file bktr.c.

Referenced by bktr_init().

#define PALN   4

Definition at line 67 of file bktr.c.

Referenced by bktr_init().

#define SECAM   3

Definition at line 66 of file bktr.c.

Referenced by bktr_init(), and grab_read_header().

#define SECAM_HEIGHT   576

Definition at line 73 of file bktr.c.

Referenced by bktr_init().

#define VIDEO_FORMAT   NTSC

Definition at line 77 of file bktr.c.

Referenced by bktr_init().

---

Function Documentation

static void bktr_getframe

(

uint64_t

per_frame

)

[static]

Definition at line 209 of file bktr.c.

Referenced by grab_read_packet().

static av_cold int bktr_init	(	const char *	video_device,
		int	width,
		int	height,
		int	format,
		int *	video_fd,
		int *	tuner_fd,
		int	idev,
		double	frequency
	)			[static]

Definition at line 95 of file bktr.c.

Referenced by grab_read_header().

static void catchsignal

(

int

signal

)

[static]

Definition at line 89 of file bktr.c.

Referenced by bktr_init().

static int grab_read_close

(

AVFormatContext *

s1

)

[static]

Definition at line 299 of file bktr.c.

static int grab_read_header	(	AVFormatContext *	s1,
		AVFormatParameters *	ap
	)			[static]

Definition at line 244 of file bktr.c.

static int grab_read_packet	(	AVFormatContext *	s1,
		AVPacket *	pkt
	)			[static]

Definition at line 229 of file bktr.c.

---

Variable Documentation

AVInputFormat bktr_demuxer

Initial value:

 {
    "bktr",
    NULL_IF_CONFIG_SMALL("video grab"),
    sizeof(VideoData),
    NULL,
    grab_read_header,
    grab_read_packet,
    grab_read_close,
    .flags = AVFMT_NOFILE,
}

Definition at line 317 of file bktr.c.

int bktr_dev[] [static]

Initial value:

 { METEOR_DEV0, METEOR_DEV1, METEOR_DEV2,
    METEOR_DEV3, METEOR_DEV_SVIDEO }

Definition at line 80 of file bktr.c.

Referenced by bktr_init().

uint64_t last_frame_time

Definition at line 85 of file bktr.c.

Referenced by bktr_getframe(), and grab_read_header().

volatile sig_atomic_t nsignals

Definition at line 86 of file bktr.c.

Referenced by bktr_getframe(), catchsignal(), and grab_read_header().

uint8_t* video_buf

Definition at line 83 of file bktr.c.

Referenced by bktr_init(), grab_read_close(), and grab_read_packet().

size_t video_buf_size

Definition at line 84 of file bktr.c.

Referenced by bktr_init(), grab_read_close(), and grab_read_packet().