mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-24 01:00:37 +00:00
121 lines
3.8 KiB
C
121 lines
3.8 KiB
C
#define VIDEO_RGB08 1 /* bt848 dithered */
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#define VIDEO_GRAY 2
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#define VIDEO_RGB15_LE 3 /* 15 bpp little endian */
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#define VIDEO_RGB16_LE 4 /* 16 bpp little endian */
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#define VIDEO_RGB15_BE 5 /* 15 bpp big endian */
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#define VIDEO_RGB16_BE 6 /* 16 bpp big endian */
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#define VIDEO_BGR24 7 /* bgrbgrbgrbgr (LE) */
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#define VIDEO_BGR32 8 /* bgr-bgr-bgr- (LE) */
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#define VIDEO_RGB24 9 /* rgbrgbrgbrgb (BE)*/
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#define VIDEO_RGB32 10 /* -rgb-rgb-rgb (BE)*/
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#define VIDEO_LUT2 11 /* lookup-table 2 byte depth */
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#define VIDEO_LUT4 12 /* lookup-table 4 byte depth */
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#define VIDEO_YUV422 13 /* YUV 4:2:2 */
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#define VIDEO_YUV422P 14 /* YUV 4:2:2 (planar) */
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#define VIDEO_YUV420P 15 /* YUV 4:2:0 (planar) */
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#define VIDEO_MJPEG 16 /* MJPEG */
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#define CAN_AUDIO_VOLUME 1
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#define GRAB_ATTR_VOLUME 1
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#define GRAB_ATTR_MUTE 2
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#define GRAB_ATTR_MODE 3
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#define GRAB_ATTR_COLOR 11
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#define GRAB_ATTR_BRIGHT 12
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#define GRAB_ATTR_HUE 13
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#define GRAB_ATTR_CONTRAST 14
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#define TRAP(txt) fprintf(stderr,"%s:%d:%s\n",__FILE__,__LINE__,txt);exit(1);
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/* ------------------------------------------------------------------------- */
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struct STRTAB {
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long nr;
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char *str;
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};
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typedef struct _OverlayClip OverlayClip;
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struct _OverlayClip {
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int x1, x2, y1, y2;
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};
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struct GRAB_ATTR {
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int id;
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int have;
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int get;
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int set;
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void *arg;
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};
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struct GRABBER {
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char *name;
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int flags;
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const struct STRTAB *norms;
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struct STRTAB *inputs;
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const struct STRTAB *audio_modes;
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int opened;
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char *map;
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int fd, fd_grab;
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/* generic informations */
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struct video_capability capability;
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struct video_channel *channels;
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struct video_audio audio;
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struct video_tuner *tuner;
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struct video_picture pict;
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#define NUM_ATTR 7
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struct GRAB_ATTR grab_attr[NUM_ATTR];
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int cur_input;
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int cur_norm;
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int grab_read_size;
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char *grab_read_buf;
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/* overlay */
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struct video_window ov_win;
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struct video_clip ov_clips[32];
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struct video_buffer ov_fbuf;
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/* screen grab */
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struct video_mmap gb_even;
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struct video_mmap gb_odd;
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int even,pixmap_bytes;
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int gb_grab,gb_sync;
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struct video_mbuf gb_buffers;
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/* state */
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int overlay, swidth, sheight;
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int (*grab_open)(struct GRABBER *grab_v4l, char *opt);
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int (*grab_close)(struct GRABBER *grab_v4l);
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int (*grab_setupfb)(struct GRABBER *grab_v4l, int sw, int sh, int format, void *base, int bpl);
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int (*grab_overlay)(struct GRABBER *grab_v4l, int x, int y, int width, int height, int format,
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OverlayClip *oc, int count);
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int (*grab_offscreen)(struct GRABBER *grab_v4l, int start, int pitch, int width, int height,
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int format);
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int (*grab_setparams)(struct GRABBER *grab_v4l, int format, int *width, int *height, int *linelength);
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void* (*grab_capture)(struct GRABBER *grab_v4l, int single);
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void (*grab_cleanup)(struct GRABBER *grab_v4l);
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int (*grab_tune)(struct GRABBER *grab_v4l, unsigned long freq);
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int (*grab_tuned)(struct GRABBER *grab_v4l);
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int (*grab_input)(struct GRABBER *grab_v4l, int input, int norm);
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#if 0
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int (*grab_picture)(int color, int bright, int hue, int contrast);
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int (*grab_audio)(int mute, int volume, int *mode);
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#else
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int (*grab_hasattr)(struct GRABBER *grab_v4l, int id);
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int (*grab_getattr)(struct GRABBER *grab_v4l, int id);
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int (*grab_setattr)(struct GRABBER *grab_v4l, int id, int val);
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#endif
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};
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/* ------------------------------------------------------------------------- */
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struct GRABBER *grab_init();
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