mpv/stream/tv.h

#ifndef TV_H
#define TV_H

//#include "libao2/afmt.h"
//#include "libmpcodecs/img_format.h"
//#include "mp_msg.h"

typedef struct tv_param_s {
    char *freq;
    char *channel;
    char *chanlist;
    char *norm;
    int automute;
#ifdef HAVE_TV_V4L2
    int normid;
#endif
    char *device;
    char *driver;
    int width;
    int height;
    int input;
    int outfmt;
    float fps;
    char **channels;
    int noaudio;
    int immediate;
    int audiorate;
    int audio_id;
#if defined(HAVE_TV_V4L)
    int amode;
    int volume;
    int bass;
    int treble;
    int balance;
    int forcechan;
    int force_audio;
    int buffer_size;
    int mjpeg;
    int decimation;
    int quality;
#if defined(HAVE_ALSA9) || defined(HAVE_ALSA1X)
    int alsa;
#endif
    char* adevice;
#endif
    int brightness;
    int contrast;
    int hue;
    int saturation;
    char *tdevice;  ///< teletext device
    int tformat;    ///< teletext display format
    int tpage;      ///< start teletext page
} tv_param_t;
  
extern tv_param_t stream_tv_defaults;
 
typedef struct tvi_info_s
{
    struct tvi_handle_s * (*tvi_init)(tv_param_t* tv_param);
    const char *name;
    const char *short_name;
    const char *author;
    const char *comment;
} tvi_info_t;

typedef struct tvi_functions_s
{
    int (*init)();
    int (*uninit)();
    int (*control)();
    int (*start)();
    double (*grab_video_frame)();
    int (*get_video_framesize)();
    double (*grab_audio_frame)();
    int (*get_audio_framesize)();
} tvi_functions_t;

typedef struct tvi_handle_s {
    tvi_functions_t	*functions;
    void		*priv;
    int 		seq;

    /* specific */
    int			norm;
    int			chanlist;
    const struct CHANLIST *chanlist_s;
    int			channel;
    tv_param_t          * tv_param;
} tvi_handle_t;

typedef struct tv_channels_s {
    int index;
    char number[5];
    char name[20];
    int   freq;
    struct tv_channels_s *next;
    struct tv_channels_s *prev;
} tv_channels_t;

extern tv_channels_t *tv_channel_list;
extern tv_channels_t *tv_channel_current, *tv_channel_last;
extern char *tv_channel_last_real;

#define TVI_CONTROL_FALSE		0
#define TVI_CONTROL_TRUE		1
#define TVI_CONTROL_NA			-1
#define TVI_CONTROL_UNKNOWN		-2

/* ======================== CONTROLS =========================== */

/* GENERIC controls */
#define TVI_CONTROL_IS_AUDIO		0x1
#define TVI_CONTROL_IS_VIDEO		0x2
#define TVI_CONTROL_IS_TUNER		0x3
#define TVI_CONTROL_IMMEDIATE           0x4

/* VIDEO controls */
#define TVI_CONTROL_VID_GET_FPS		0x101
#define TVI_CONTROL_VID_GET_PLANES	0x102
#define TVI_CONTROL_VID_GET_BITS	0x103
#define TVI_CONTROL_VID_CHK_BITS	0x104
#define TVI_CONTROL_VID_SET_BITS	0x105
#define TVI_CONTROL_VID_GET_FORMAT	0x106
#define TVI_CONTROL_VID_CHK_FORMAT	0x107
#define TVI_CONTROL_VID_SET_FORMAT	0x108
#define TVI_CONTROL_VID_GET_WIDTH	0x109
#define TVI_CONTROL_VID_CHK_WIDTH	0x110
#define TVI_CONTROL_VID_SET_WIDTH	0x111
#define TVI_CONTROL_VID_GET_HEIGHT	0x112
#define TVI_CONTROL_VID_CHK_HEIGHT	0x113
#define TVI_CONTROL_VID_SET_HEIGHT	0x114
#define TVI_CONTROL_VID_GET_BRIGHTNESS	0x115
#define TVI_CONTROL_VID_SET_BRIGHTNESS	0x116
#define TVI_CONTROL_VID_GET_HUE		0x117
#define TVI_CONTROL_VID_SET_HUE		0x118
#define TVI_CONTROL_VID_GET_SATURATION	0x119
#define TVI_CONTROL_VID_SET_SATURATION	0x11a
#define TVI_CONTROL_VID_GET_CONTRAST	0x11b
#define TVI_CONTROL_VID_SET_CONTRAST	0x11c
#define TVI_CONTROL_VID_GET_PICTURE	0x11d
#define TVI_CONTROL_VID_SET_PICTURE	0x11e

/* TUNER controls */
#define TVI_CONTROL_TUN_GET_FREQ	0x201
#define TVI_CONTROL_TUN_SET_FREQ	0x202
#define TVI_CONTROL_TUN_GET_TUNER	0x203	/* update priv->tuner struct for used input */
#define TVI_CONTROL_TUN_SET_TUNER	0x204	/* update priv->tuner struct for used input */
#define TVI_CONTROL_TUN_GET_NORM	0x205
#define TVI_CONTROL_TUN_SET_NORM	0x206

/* AUDIO controls */
#define TVI_CONTROL_AUD_GET_FORMAT	0x301
#define TVI_CONTROL_AUD_GET_SAMPLERATE	0x302
#define TVI_CONTROL_AUD_GET_SAMPLESIZE	0x303
#define TVI_CONTROL_AUD_GET_CHANNELS	0x304
#define TVI_CONTROL_AUD_SET_SAMPLERATE	0x305

/* SPECIFIC controls */
#define TVI_CONTROL_SPC_GET_INPUT	0x401	/* set input channel (tv,s-video,composite..) */
#define TVI_CONTROL_SPC_SET_INPUT	0x402	/* set input channel (tv,s-video,composite..) */
#define TVI_CONTROL_SPC_GET_NORMID	0x403	/* get normid from norm name */

//tvi_* ioctl (not tvi_vbi.c !!!)
#define TVI_CONTROL_VBI_INIT           0x501   ///< vbi init

/* 
  TELETEXT controls (through tv_teletext_control() ) 
   NOTE: 
    _SET_ should be _GET_ +1
   _STEP_ should be _GET_ +2
*/
#define TV_VBI_CONTROL_GET_MODE        0x510   ///< get current mode teletext
#define TV_VBI_CONTROL_SET_MODE        0x511   ///< on/off grab teletext

#define TV_VBI_CONTROL_GET_PAGE        0x513   ///< get grabbed teletext page
#define TV_VBI_CONTROL_SET_PAGE        0x514   ///< set grab teletext page number
#define TV_VBI_CONTROL_STEP_PAGE       0x515   ///< step grab teletext page number

#define TV_VBI_CONTROL_GET_SUBPAGE     0x516   ///< get grabbed teletext page
#define TV_VBI_CONTROL_SET_SUBPAGE     0x517   ///< set grab teletext page number

#define TV_VBI_CONTROL_GET_FORMAT      0x519   ///< get eletext format
#define TV_VBI_CONTROL_SET_FORMAT      0x51a   ///< set teletext format

#define TV_VBI_CONTROL_GET_HALF_PAGE   0x51c   ///< get current half page
#define TV_VBI_CONTROL_SET_HALF_PAGE   0x51d   ///< switch half page

#define TV_VBI_CONTROL_ADD_DEC         0x550   ///< add page number with dec
#define TV_VBI_CONTROL_GO_LINK         0x551   ///< go link (1..6) NYI
#define TV_VBI_CONTROL_GET_VBIPAGE     0x552   ///< get vbi_image for grabbed teletext page
#define TV_VBI_CONTROL_RESET           0x553   ///< vbi reset
#define TV_VBI_CONTROL_START           0x554   ///< vbi start
#define TV_VBI_CONTROL_STOP            0x555   ///< vbi stop
#define TV_VBI_CONTROL_DECODE_PAGE     0x556   ///< decode vbi page

int tv_set_color_options(tvi_handle_t *tvh, int opt, int val);
int tv_get_color_options(tvi_handle_t *tvh, int opt, int* val);
#define TV_COLOR_BRIGHTNESS	1
#define TV_COLOR_HUE		2
#define TV_COLOR_SATURATION	3
#define TV_COLOR_CONTRAST	4

int tv_step_channel_real(tvi_handle_t *tvh, int direction);
int tv_step_channel(tvi_handle_t *tvh, int direction);
#define TV_CHANNEL_LOWER	1
#define TV_CHANNEL_HIGHER	2

int tv_last_channel(tvi_handle_t *tvh);

int tv_set_channel_real(tvi_handle_t *tvh, char *channel);
int tv_set_channel(tvi_handle_t *tvh, char *channel);

int tv_step_norm(tvi_handle_t *tvh);
int tv_step_chanlist(tvi_handle_t *tvh);

int tv_set_freq(tvi_handle_t *tvh, unsigned long freq);
int tv_get_freq(tvi_handle_t *tvh, unsigned long *freq);
int tv_step_freq(tvi_handle_t *tvh, float step_interval);

int tv_set_norm(tvi_handle_t *tvh, char* norm);

#define TV_NORM_PAL		1
#define TV_NORM_NTSC		2
#define TV_NORM_SECAM		3
#define TV_NORM_PALNC		4
#define TV_NORM_PALM		5
#define TV_NORM_PALN		6
#define TV_NORM_NTSCJP		7

#define VBI_TFORMAT_TEXT    0               ///< text mode
#define VBI_TFORMAT_BW      1               ///< back&white mode
#define VBI_TFORMAT_GRAY    2               ///< grayscale mode
#define VBI_TFORMAT_COLOR   3               ///< color mode (require color_spu patch!)

#define VBI_MAX_PAGES      0x800            ///< max sub pages number
#define VBI_MAX_SUBPAGES   64               ///< max sub pages number

#define VBI_ROWS    24                      ///< teletext page width in chars
#define VBI_COLUMNS 40                      ///< teletext page height in chars
#define VBI_TIME_LINEPOS    26              ///< time line pos in page header

typedef
enum{
    TT_FORMAT_OPAQUE=0,       ///< opaque
    TT_FORMAT_TRANSPARENT,    ///< translarent
    TT_FORMAT_OPAQUE_INV,     ///< opaque with inverted colors
    TT_FORMAT_TRANSPARENT_INV ///< translarent with inverted colors
} teletext_format;

typedef
enum{
    TT_ZOOM_NORMAL=0,
    TT_ZOOM_TOP_HALF,
    TT_ZOOM_BOTTOM_HALF
} teletext_zoom;

typedef struct tt_char_s{
    unsigned int unicode; ///< unicode (utf8) character
    unsigned char fg;  ///< foreground color
    unsigned char bg;  ///< background color
    unsigned char gfx; ///< 0-no gfx, 1-solid gfx, 2-separated gfx
    unsigned char ctl; ///< control character
    unsigned char lng; ///< lang: 0-lating,1-national
    unsigned char raw; ///< raw character (as received from device)
} tt_char;

typedef struct tt_page_s{
    int pagenum;          ///< page number
    int subpagenum;       ///< subpage number
    unsigned char lang;   ///< language code
    unsigned char active; ///< page is complete and ready for rendering
    unsigned char flags;  ///< page flags, not used
    unsigned char raw[VBI_ROWS*VBI_COLUMNS]; ///< page data
    struct tt_page_s* next_subpage;
}  tt_page;

typedef struct tt_stream_props_s{
    int sampling_rate;
    int samples_per_line;
    int offset;
    int count[2];     ///< number of lines in first and second fields
    int interlaced;   ///< vbi data are interlaced
    int bufsize;      ///< required buffer size
} tt_stream_props;

#endif /* TV_H */