mirror of https://github.com/mpv-player/mpv
149 lines
5.7 KiB
C
149 lines
5.7 KiB
C
/*
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* Teletext support
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*
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* Copyright (C) 2007 Vladimir Voroshilov <voroshil@gmail.com>
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*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPLAYER_DEC_TELETEXT_H
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#define MPLAYER_DEC_TELETEXT_H
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struct tt_param {
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char *device; ///< teletext device
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int format; ///< teletext display format
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int page; ///< start teletext page
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int lang; ///< primary language code
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};
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#define VBI_CONTROL_FALSE 0
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#define VBI_CONTROL_TRUE 1
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#define VBI_CONTROL_UNKNOWN -1
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int teletext_control(void* p, int cmd, void *arg);
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/*
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TELETEXT controls (through teletext_control() )
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NOTE:
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_SET_ should be _GET_ +1
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_STEP_ should be _GET_ +2
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*/
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#define TV_VBI_CONTROL_GET_MODE 0x510 ///< get current mode teletext
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#define TV_VBI_CONTROL_SET_MODE 0x511 ///< on/off grab teletext
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#define TV_VBI_CONTROL_GET_PAGE 0x513 ///< get grabbed teletext page
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#define TV_VBI_CONTROL_SET_PAGE 0x514 ///< set grab teletext page number
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#define TV_VBI_CONTROL_STEP_PAGE 0x515 ///< step grab teletext page number
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#define TV_VBI_CONTROL_GET_SUBPAGE 0x516 ///< get grabbed teletext page
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#define TV_VBI_CONTROL_SET_SUBPAGE 0x517 ///< set grab teletext page number
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#define TV_VBI_CONTROL_GET_FORMAT 0x519 ///< get teletext format
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#define TV_VBI_CONTROL_SET_FORMAT 0x51a ///< set teletext format
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#define TV_VBI_CONTROL_GET_HALF_PAGE 0x51c ///< get current half page
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#define TV_VBI_CONTROL_SET_HALF_PAGE 0x51d ///< switch half page
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#define TV_VBI_CONTROL_IS_CHANGED 0x540 ///< teletext page is changed
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#define TV_VBI_CONTROL_MARK_UNCHANGED 0x541 ///< teletext page is changed
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#define TV_VBI_CONTROL_ADD_DEC 0x550 ///< add page number with dec
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#define TV_VBI_CONTROL_GO_LINK 0x551 ///< go link (1..6) NYI
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#define TV_VBI_CONTROL_GET_VBIPAGE 0x552 ///< get vbi_image for grabbed teletext page
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#define TV_VBI_CONTROL_RESET 0x553 ///< vbi reset
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#define TV_VBI_CONTROL_START 0x554 ///< vbi start
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#define TV_VBI_CONTROL_STOP 0x555 ///< vbi stop
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#define TV_VBI_CONTROL_DECODE_PAGE 0x556 ///< decode vbi page
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#define TV_VBI_CONTROL_GET_NETWORKNAME 0x557 ///< get current network name
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#define TV_VBI_CONTROL_DECODE_DVB 0x558 ///< decode DVB teletext
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#define VBI_TFORMAT_TEXT 0 ///< text mode
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#define VBI_TFORMAT_BW 1 ///< black&white mode
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#define VBI_TFORMAT_GRAY 2 ///< grayscale mode
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#define VBI_TFORMAT_COLOR 3 ///< color mode (require color_spu patch!)
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#define VBI_MAX_PAGES 0x800 ///< max sub pages number
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#define VBI_MAX_SUBPAGES 64 ///< max sub pages number
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#define VBI_ROWS 25 ///< teletext page height in rows
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#define VBI_COLUMNS 40 ///< teletext page width in chars
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#define VBI_TIME_LINEPOS 26 ///< time line pos in page header
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typedef
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enum{
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TT_FORMAT_OPAQUE=0, ///< opaque
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TT_FORMAT_TRANSPARENT, ///< transparent
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TT_FORMAT_OPAQUE_INV, ///< opaque with inverted colors
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TT_FORMAT_TRANSPARENT_INV ///< transparent with inverted colors
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} teletext_format;
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typedef
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enum{
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TT_ZOOM_NORMAL=0,
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TT_ZOOM_TOP_HALF,
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TT_ZOOM_BOTTOM_HALF
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} teletext_zoom;
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typedef struct tt_char_s{
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unsigned int unicode; ///< unicode (utf8) character
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unsigned char fg; ///< foreground color
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unsigned char bg; ///< background color
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unsigned char gfx; ///< 0-no gfx, 1-solid gfx, 2-separated gfx
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unsigned char flh; ///< 0-no flash, 1-flash
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unsigned char hidden; ///< char is hidden (for subtitle pages)
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unsigned char ctl; ///< control character
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unsigned char lng; ///< lang: 0-secondary language,1-primary language
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unsigned char raw; ///< raw character (as received from device)
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} tt_char;
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typedef struct tt_link_s{
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int pagenum; ///< page number
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int subpagenum; ///< subpage number
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} tt_link_t;
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typedef struct tt_page_s{
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int pagenum; ///< page number
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int subpagenum; ///< subpage number
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unsigned char primary_lang; ///< primary language code
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unsigned char secondary_lang; ///< secondary language code
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unsigned char active; ///< page is complete and ready for rendering
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unsigned char flags; ///< page flags
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unsigned char raw[VBI_ROWS*VBI_COLUMNS]; ///< page data
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struct tt_page_s* next_subpage;
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struct tt_link_s links[6];
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} tt_page;
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#define TT_PGFL_SUPPRESS_HEADER 0x01
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#define TT_PGFL_UPDATE_INDICATOR 0x02
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#define TT_PGFL_INTERRUPTED_SEQ 0x04
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#define TT_PGFL_INHIBIT_DISPLAY 0x08
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#define TT_PGFL_NEWFLASH 0x10
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#define TT_PGFL_SUBTITLE 0x20
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#define TT_PGFL_ERASE_PAGE 0x40
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#define TT_PGFL_MAGAZINE_SERIAL 0x80
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typedef struct tt_stream_props_s{
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int sampling_rate;
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int samples_per_line;
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int offset;
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int count[2]; ///< number of lines in first and second fields
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int interlaced; ///< vbi data are interlaced
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int bufsize; ///< required buffer size
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} tt_stream_props;
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#endif /* MPLAYER_DEC_TELETEXT_H */
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