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63e585dc76
The USB webcam I have defaults to the wrong setting causing visible flickering degrading the image quality. This allows setting the value to any of the currently available options or -1 to by default not modify the value.
126 lines
3.8 KiB
C
126 lines
3.8 KiB
C
/* video.h
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*
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* Include file for video.c
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* Copyright 2000 by Jeroen Vreeken (pe1rxq@amsat.org)
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* This software is distributed under the GNU public license version 2
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* See also the file 'COPYING'.
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*
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*/
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#ifndef _INCLUDE_VIDEO_H
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#define _INCLUDE_VIDEO_H
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#define _LINUX_TIME_H 1
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#include <sys/mman.h>
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#if !defined(WITHOUT_V4L)
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#if defined(HAVE_LINUX_VIDEODEV_H)
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#include <linux/videodev.h>
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#elif defined(HAVE_SYS_VIDEOIO_H)
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#include <sys/videoio.h>
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#endif
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#include "vloopback_motion.h"
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#include "pwc-ioctl.h"
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#endif
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/* video4linux stuff */
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#define NORM_DEFAULT 0
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#define NORM_PAL 0
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#define NORM_NTSC 1
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#define NORM_SECAM 2
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#define NORM_PAL_NC 3
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#define IN_DEFAULT -1
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#define IN_TV 0
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#define IN_COMPOSITE 1
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#define IN_COMPOSITE2 2
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#define IN_SVIDEO 3
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/* video4linux error codes */
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#define V4L_GENERAL_ERROR 0x01 /* binary 000001 */
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#define V4L_BTTVLOST_ERROR 0x05 /* binary 000101 */
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#define V4L_FATAL_ERROR -1
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#define VIDEO_DEVICE "/dev/video0"
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typedef struct video_image_buff {
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unsigned char *ptr;
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int content_length;
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size_t size; /* total allocated size */
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size_t used; /* bytes already used */
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struct timeval image_time; /* time this image was received */
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} video_buff;
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struct video_dev {
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struct video_dev *next;
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int usage_count;
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int fd;
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const char *video_device;
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int input;
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int norm;
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int width;
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int height;
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int brightness;
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int contrast;
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int saturation;
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int hue;
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int power_line_frequency;
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unsigned long freq;
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int tuner_number;
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int fps;
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pthread_mutex_t mutex;
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pthread_mutexattr_t attr;
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int owner;
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int frames;
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/* Device type specific stuff: */
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#ifndef WITHOUT_V4L
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/* v4l */
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int v4l2;
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void *v4l2_private;
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int size_map;
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int v4l_fmt;
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unsigned char *v4l_buffers[2];
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int v4l_curbuffer;
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int v4l_maxbuffer;
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int v4l_bufsize;
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#endif
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};
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/* video functions, video_common.c */
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int vid_start(struct context *cnt);
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int vid_next(struct context *cnt, unsigned char *map);
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void vid_close(struct context *cnt);
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void vid_cleanup(void);
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void vid_init(void);
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void conv_yuv422to420p(unsigned char *map, unsigned char *cap_map, int width, int height);
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void conv_uyvyto420p(unsigned char *map, unsigned char *cap_map, unsigned int width, unsigned int height);
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void conv_rgb24toyuv420p(unsigned char *map, unsigned char *cap_map, int width, int height);
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int sonix_decompress(unsigned char *outp, unsigned char *inp, int width, int height);
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void bayer2rgb24(unsigned char *dst, unsigned char *src, long int width, long int height);
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int vid_do_autobright(struct context *cnt, struct video_dev *viddev);
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int mjpegtoyuv420p(unsigned char *map, unsigned char *cap_map, int width, int height, unsigned int size);
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#ifndef WITHOUT_V4L
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/* video functions, video.c */
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unsigned char *v4l_start(struct video_dev *viddev, int width, int height,
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int input, int norm, unsigned long freq, int tuner_number);
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void v4l_set_input(struct context *cnt, struct video_dev *viddev, unsigned char *map, int width, int height,
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struct config *conf);
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int v4l_next(struct video_dev *viddev, unsigned char *map, int width, int height);
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/* video2.c */
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unsigned char *v4l2_start(struct context *cnt, struct video_dev *viddev, int width, int height,
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int input, int norm, unsigned long freq, int tuner_number);
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void v4l2_set_input(struct context *cnt, struct video_dev *viddev, unsigned char *map, int width, int height,
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struct config *conf);
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int v4l2_next(struct context *cnt, struct video_dev *viddev, unsigned char *map, int width, int height);
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void v4l2_close(struct video_dev *viddev);
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void v4l2_cleanup(struct video_dev *viddev);
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#endif /* WITHOUT_V4L */
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#endif /* _INCLUDE_VIDEO_H */
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