1 /*****************************************************************************
2 * zvbi.c : VBI and Teletext PES demux and decoder using libzvbi
3 *****************************************************************************
4 * Copyright (C) 2007, M2X
7 * Authors: Derk-Jan Hartman <djhartman at m2x dot nl>
8 * Jean-Paul Saman <jpsaman at m2x dot nl>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
24 /*****************************************************************************
26 * information on teletext format can be found here :
27 * http://pdc.ro.nu/teletext.html
29 *****************************************************************************/
31 /* This module implements:
32 * ETSI EN 301 775: VBI data in PES
33 * ETSI EN 300 472: EBU Teletext data in PES
34 * ETSI EN 300 706: Enhanced Teletext (libzvbi)
35 * ETSI EN 300 231: Video Programme System [VPS] (libzvbi)
36 * ETSI EN 300 294: 625-line Wide Screen Signaling [WSS] (libzvbi)
37 * EIA-608 Revision A: Closed Captioning [CC] (libzvbi)
44 #include <vlc_common.h>
45 #include <vlc_plugin.h>
49 #include <vlc_codec.h>
52 /*****************************************************************************
54 *****************************************************************************/
55 static int Open ( vlc_object_t * );
56 static void Close( vlc_object_t * );
58 #define PAGE_TEXT N_("Teletext page")
59 #define PAGE_LONGTEXT N_("Open the indicated Teletext page." \
60 "Default page is index 100")
62 #define OPAQUE_TEXT N_("Text is always opaque")
63 #define OPAQUE_LONGTEXT N_("Setting vbi-opaque to false " \
64 "makes the boxed text transparent." )
66 #define POS_TEXT N_("Teletext alignment")
67 #define POS_LONGTEXT N_( \
68 "You can enforce the teletext position on the video " \
69 "(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \
70 "also use combinations of these values, eg. 6 = top-right).")
72 #define TELX_TEXT N_("Teletext text subtitles")
73 #define TELX_LONGTEXT N_( "Output teletext subtitles as text " \
74 "instead of as RGBA" )
76 static const int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
77 static const char *const ppsz_pos_descriptions[] =
78 { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
79 N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
82 set_description( N_("VBI and Teletext decoder") )
83 set_shortname( N_("VBI & Teletext") )
84 set_capability( "decoder", 51 )
85 set_category( CAT_INPUT )
86 set_subcategory( SUBCAT_INPUT_SCODEC )
87 set_callbacks( Open, Close )
89 add_integer( "vbi-page", 100, NULL,
90 PAGE_TEXT, PAGE_LONGTEXT, false )
91 add_bool( "vbi-opaque", true, NULL,
92 OPAQUE_TEXT, OPAQUE_LONGTEXT, false )
93 add_integer( "vbi-position", 4, NULL, POS_TEXT, POS_LONGTEXT, false )
94 change_integer_list( pi_pos_values, ppsz_pos_descriptions, NULL );
95 add_bool( "vbi-text", false, NULL,
96 TELX_TEXT, TELX_LONGTEXT, false )
99 /****************************************************************************
101 ****************************************************************************/
103 // #define ZVBI_DEBUG
105 //Guessing table for missing "default region triplet"
106 static const int pi_default_triplet[] = {
109 24,24,24,24, //ssc scr slv rum
110 32,32,32,32,32, //est lit rus bul ukr
115 static const char *const ppsz_default_triplet[] = {
118 "ssc", "scr", "slv", "rum",
119 "est", "lit", "rus", "bul", "ukr",
127 ZVBI_KEY_RED = 'r' << 16,
128 ZVBI_KEY_GREEN = 'g' << 16,
129 ZVBI_KEY_YELLOW = 'y' << 16,
130 ZVBI_KEY_BLUE = 'b' << 16,
131 ZVBI_KEY_INDEX = 'i' << 16,
135 DATA_UNIT_EBU_TELETEXT_NON_SUBTITLE = 0x02,
136 DATA_UNIT_EBU_TELETEXT_SUBTITLE = 0x03,
137 DATA_UNIT_EBU_TELETEXT_INVERTED = 0x0C,
139 DATA_UNIT_ZVBI_WSS_CPR1204 = 0xB4,
140 DATA_UNIT_ZVBI_CLOSED_CAPTION_525 = 0xB5,
141 DATA_UNIT_ZVBI_MONOCHROME_SAMPLES_525 = 0xB6,
143 DATA_UNIT_VPS = 0xC3,
144 DATA_UNIT_WSS = 0xC4,
145 DATA_UNIT_CLOSED_CAPTION = 0xC5,
146 DATA_UNIT_MONOCHROME_SAMPLES = 0xC6,
148 DATA_UNIT_STUFFING = 0xFF,
153 vbi_decoder * p_vbi_dec;
154 vbi_dvb_demux * p_dvb_demux;
155 unsigned int i_last_page;
157 bool b_text; /* Subtitles as text */
159 vlc_mutex_t lock; /* Lock to protect the following variables */
160 /* Positioning of Teletext images */
163 unsigned int i_wanted_page;
164 unsigned int i_wanted_subpage;
173 static subpicture_t *Decode( decoder_t *, block_t ** );
175 static subpicture_t *Subpicture( decoder_t *p_dec, video_format_t *p_fmt,
177 int i_columns, int i_rows,
178 int i_align, mtime_t i_pts );
180 static void EventHandler( vbi_event *ev, void *user_data );
181 static int OpaquePage( picture_t *p_src, const vbi_page p_page,
182 const video_format_t fmt, bool b_opaque );
184 /* Properties callbacks */
185 static int RequestPage( vlc_object_t *p_this, char const *psz_cmd,
186 vlc_value_t oldval, vlc_value_t newval, void *p_data );
187 static int Opaque( vlc_object_t *p_this, char const *psz_cmd,
188 vlc_value_t oldval, vlc_value_t newval, void *p_data );
189 static int Position( vlc_object_t *p_this, char const *psz_cmd,
190 vlc_value_t oldval, vlc_value_t newval, void *p_data );
191 static int EventKey( vlc_object_t *p_this, char const *psz_cmd,
192 vlc_value_t oldval, vlc_value_t newval, void *p_data );
194 /*****************************************************************************
195 * Open: probe the decoder and return score
196 *****************************************************************************
197 * Tries to launch a decoder and return score so that the interface is able
199 *****************************************************************************/
200 static int Open( vlc_object_t *p_this )
202 decoder_t *p_dec = (decoder_t *) p_this;
203 decoder_sys_t *p_sys = NULL;
205 if( p_dec->fmt_in.i_codec != VLC_CODEC_TELETEXT )
208 p_dec->pf_decode_sub = Decode;
209 p_sys = p_dec->p_sys = malloc( sizeof(decoder_sys_t) );
212 memset( p_sys, 0, sizeof(decoder_sys_t) );
214 p_sys->i_key[0] = p_sys->i_key[1] = p_sys->i_key[2] = '*' - '0';
215 p_sys->b_update = false;
216 p_sys->p_vbi_dec = vbi_decoder_new();
217 p_sys->p_dvb_demux = vbi_dvb_pes_demux_new( NULL, NULL );
218 vlc_mutex_init( &p_sys->lock );
220 if( (p_sys->p_vbi_dec == NULL) || (p_sys->p_dvb_demux == NULL) )
222 msg_Err( p_dec, "VBI decoder/demux could not be created." );
227 /* Some broadcasters in countries with level 1 and level 1.5 still not send a G0 to do
228 * matches against table 32 of ETSI 300 706. We try to do some best effort guessing
229 * This is not perfect, but might handle some cases where we know the vbi language
230 * is known. It would be better if people started sending G0 */
231 for( int i = 0; ppsz_default_triplet[i] != NULL; i++ )
233 if( p_dec->fmt_in.psz_language && !strcasecmp( p_dec->fmt_in.psz_language, ppsz_default_triplet[i] ) )
235 vbi_teletext_set_default_region( p_sys->p_vbi_dec, pi_default_triplet[i]);
236 msg_Dbg( p_dec, "overwriting default zvbi region: %d", pi_default_triplet[i] );
240 vbi_event_handler_register( p_sys->p_vbi_dec, VBI_EVENT_TTX_PAGE | VBI_EVENT_NETWORK |
242 VBI_EVENT_CAPTION | VBI_EVENT_TRIGGER |
243 VBI_EVENT_ASPECT | VBI_EVENT_PROG_INFO | VBI_EVENT_NETWORK_ID |
245 0 , EventHandler, p_dec );
247 /* Create the var on vlc_global. */
248 p_sys->i_wanted_page = var_CreateGetInteger( p_dec, "vbi-page" );
249 var_AddCallback( p_dec, "vbi-page",
250 RequestPage, p_sys );
252 /* Check if the Teletext track has a known "initial page". */
253 if( p_sys->i_wanted_page == 100 && p_dec->fmt_in.subs.teletext.i_magazine != -1 )
255 p_sys->i_wanted_page = 100 * p_dec->fmt_in.subs.teletext.i_magazine +
256 vbi_bcd2dec( p_dec->fmt_in.subs.teletext.i_page );
257 var_SetInteger( p_dec, "vbi-page", p_sys->i_wanted_page );
259 p_sys->i_wanted_subpage = VBI_ANY_SUBNO;
261 p_sys->b_opaque = var_CreateGetBool( p_dec, "vbi-opaque" );
262 var_AddCallback( p_dec, "vbi-opaque", Opaque, p_sys );
264 p_sys->i_align = var_CreateGetInteger( p_dec, "vbi-position" );
265 var_AddCallback( p_dec, "vbi-position", Position, p_sys );
267 p_sys->b_text = var_CreateGetBool( p_dec, "vbi-text" );
268 // var_AddCallback( p_dec, "vbi-text", Text, p_sys );
270 /* Listen for keys */
271 var_AddCallback( p_dec->p_libvlc, "key-pressed", EventKey, p_dec );
273 es_format_Init( &p_dec->fmt_out, SPU_ES, VLC_CODEC_SPU );
275 p_dec->fmt_out.video.i_chroma = VLC_CODEC_TEXT;
277 p_dec->fmt_out.video.i_chroma = VLC_CODEC_RGBA;
281 /*****************************************************************************
283 *****************************************************************************/
284 static void Close( vlc_object_t *p_this )
286 decoder_t *p_dec = (decoder_t*) p_this;
287 decoder_sys_t *p_sys = p_dec->p_sys;
289 var_DelCallback( p_dec, "vbi-position", Position, p_sys );
290 var_DelCallback( p_dec, "vbi-opaque", Opaque, p_sys );
291 var_DelCallback( p_dec, "vbi-page", RequestPage, p_sys );
292 var_DelCallback( p_dec->p_libvlc, "key-pressed", EventKey, p_dec );
294 vlc_mutex_destroy( &p_sys->lock );
296 if( p_sys->p_vbi_dec )
297 vbi_decoder_delete( p_sys->p_vbi_dec );
298 if( p_sys->p_dvb_demux )
299 vbi_dvb_demux_delete( p_sys->p_dvb_demux );
303 #define MAX_SLICES 32
305 #ifdef WORDS_BIGENDIAN
306 # define ZVBI_PIXFMT_RGBA32 VBI_PIXFMT_RGBA32_BE
308 # define ZVBI_PIXFMT_RGBA32 VBI_PIXFMT_RGBA32_LE
312 /*****************************************************************************
314 *****************************************************************************/
315 static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block )
317 decoder_sys_t *p_sys = p_dec->p_sys;
319 subpicture_t *p_spu = NULL;
321 bool b_cached = false;
323 const uint8_t *p_pos;
327 if( (pp_block == NULL) || (*pp_block == NULL) )
333 p_pos = p_block->p_buffer;
334 i_left = p_block->i_buffer;
338 vbi_sliced p_sliced[MAX_SLICES];
339 unsigned int i_lines = 0;
341 i_lines = vbi_dvb_demux_cor( p_sys->p_dvb_demux, p_sliced,
342 MAX_SLICES, &i_pts, &p_pos, &i_left );
345 vbi_decode( p_sys->p_vbi_dec, p_sliced, i_lines, i_pts / 90000.0 );
349 vlc_mutex_lock( &p_sys->lock );
350 const int i_align = p_sys->i_align;
351 const unsigned int i_wanted_page = p_sys->i_wanted_page;
352 const unsigned int i_wanted_subpage = p_sys->i_wanted_subpage;
353 const bool b_opaque = p_sys->b_opaque;
354 vlc_mutex_unlock( &p_sys->lock );
356 /* Try to see if the page we want is in the cache yet */
357 memset( &p_page, 0, sizeof(vbi_page) );
358 b_cached = vbi_fetch_vt_page( p_sys->p_vbi_dec, &p_page,
359 vbi_dec2bcd( i_wanted_page ),
360 i_wanted_subpage, VBI_WST_LEVEL_3p5,
363 if( i_wanted_page == p_sys->i_last_page && !p_sys->b_update )
366 i_pts = i_pts ? i_pts : p_block->i_pts;
369 if( p_sys->i_last_page != i_wanted_page )
371 /* We need to reset the subtitle */
372 p_spu = Subpicture( p_dec, &fmt, true,
373 p_page.columns, p_page.rows,
377 p_spu->p_region->psz_text = strdup("");
379 p_sys->b_update = true;
380 p_sys->i_last_page = i_wanted_page;
386 p_sys->b_update = false;
387 p_sys->i_last_page = i_wanted_page;
389 msg_Dbg( p_dec, "we now have page: %d ready for display",
392 /* If there is a page or sub to render, then we do that here */
393 /* Create the subpicture unit */
394 p_spu = Subpicture( p_dec, &fmt, p_sys->b_text,
395 p_page.columns, p_page.rows,
402 unsigned int i_textsize = 7000;
404 char p_text[i_textsize+1];
406 i_total = vbi_print_page_region( &p_page, p_text, i_textsize,
407 "UTF-8", 0, 0, 0, 0, p_page.columns, p_page.rows );
408 p_text[i_total] = '\0';
409 /* Strip off the pagenumber */
412 p_spu->p_region->psz_text = strdup( &p_text[8] );
415 msg_Info( p_dec, "page %x-%x(%d)\n%s", p_page.pgno, p_page.subno, i_total, p_text );
420 picture_t *p_pic = p_spu->p_region->p_picture;
422 /* ZVBI is stupid enough to assume pitch == width */
423 p_pic->p->i_pitch = 4 * fmt.i_width;
424 vbi_draw_vt_page( &p_page, ZVBI_PIXFMT_RGBA32,
425 p_spu->p_region->p_picture->p->p_pixels, 1, 1 );
427 vlc_mutex_lock( &p_sys->lock );
428 memcpy( p_sys->nav_link, &p_page.nav_link, sizeof( p_sys->nav_link )) ;
429 vlc_mutex_unlock( &p_sys->lock );
431 OpaquePage( p_pic, p_page, fmt, b_opaque );
435 vbi_unref_page( &p_page );
436 block_Release( p_block );
440 vbi_unref_page( &p_page );
443 decoder_DeleteSubpicture( p_dec, p_spu );
447 block_Release( p_block );
451 static subpicture_t *Subpicture( decoder_t *p_dec, video_format_t *p_fmt,
453 int i_columns, int i_rows, int i_align,
459 /* If there is a page or sub to render, then we do that here */
460 /* Create the subpicture unit */
461 p_spu = decoder_NewSubpicture( p_dec );
464 msg_Warn( p_dec, "can't get spu buffer" );
468 memset( &fmt, 0, sizeof(video_format_t) );
469 fmt.i_chroma = b_text ? VLC_CODEC_TEXT :
473 fmt.i_bits_per_pixel = 0;
481 fmt.i_width = fmt.i_visible_width = i_columns * 12;
482 fmt.i_height = fmt.i_visible_height = i_rows * 10;
483 fmt.i_bits_per_pixel = 32;
485 fmt.i_x_offset = fmt.i_y_offset = 0;
487 p_spu->p_region = subpicture_region_New( &fmt );
488 if( p_spu->p_region == NULL )
490 msg_Err( p_dec, "cannot allocate SPU region" );
491 decoder_DeleteSubpicture( p_dec, p_spu );
495 p_spu->p_region->i_x = 0;
496 p_spu->p_region->i_y = 0;
497 p_spu->p_region->i_align = i_align;
499 p_spu->i_start = i_pts;
501 p_spu->b_ephemer = true;
502 p_spu->b_absolute = false;
506 p_spu->i_original_picture_width = fmt.i_width;
507 p_spu->i_original_picture_height = fmt.i_height;
515 static void EventHandler( vbi_event *ev, void *user_data )
517 decoder_t *p_dec = (decoder_t *)user_data;
518 decoder_sys_t *p_sys = p_dec->p_sys;
520 if( ev->type == VBI_EVENT_TTX_PAGE )
523 msg_Info( p_dec, "Page %03x.%02x ",
524 ev->ev.ttx_page.pgno,
525 ev->ev.ttx_page.subno & 0xFF);
527 if( p_sys->i_last_page == vbi_bcd2dec( ev->ev.ttx_page.pgno ) )
528 p_sys->b_update = true;
530 if( ev->ev.ttx_page.clock_update )
531 msg_Dbg( p_dec, "clock" );
532 if( ev->ev.ttx_page.header_update )
533 msg_Dbg( p_dec, "header" );
536 else if( ev->type == VBI_EVENT_CLOSE )
537 msg_Dbg( p_dec, "Close event" );
538 else if( ev->type == VBI_EVENT_CAPTION )
539 msg_Dbg( p_dec, "Caption line: %x", ev->ev.caption.pgno );
540 else if( ev->type == VBI_EVENT_NETWORK )
542 msg_Dbg( p_dec, "Network change");
543 vbi_network n = ev->ev.network;
544 msg_Dbg( p_dec, "Network id:%d name: %s, call: %s ", n.nuid, n.name, n.call );
546 else if( ev->type == VBI_EVENT_TRIGGER )
547 msg_Dbg( p_dec, "Trigger event" );
548 else if( ev->type == VBI_EVENT_ASPECT )
549 msg_Dbg( p_dec, "Aspect update" );
550 else if( ev->type == VBI_EVENT_PROG_INFO )
551 msg_Dbg( p_dec, "Program info received" );
552 else if( ev->type == VBI_EVENT_NETWORK_ID )
553 msg_Dbg( p_dec, "Network ID changed" );
556 static int OpaquePage( picture_t *p_src, const vbi_page p_page,
557 const video_format_t fmt, bool b_opaque )
561 assert( fmt.i_chroma == VLC_CODEC_RGBA );
563 /* Kludge since zvbi doesn't provide an option to specify opacity. */
564 for( y = 0; y < fmt.i_height; y++ )
566 for( x = 0; x < fmt.i_width; x++ )
568 const vbi_opacity opacity = p_page.text[ y/10 * p_page.columns + x/12 ].opacity;
569 const int background = p_page.text[ y/10 * p_page.columns + x/12 ].background;
570 uint32_t *p_pixel = (uint32_t*)&p_src->p->p_pixels[y * p_src->p->i_pitch + 4*x];
574 /* Show video instead of this character */
575 case VBI_TRANSPARENT_SPACE:
578 /* Display foreground and background color */
579 /* To make the boxed text "closed captioning" transparent
580 * change true to false.
583 /* alpha blend video into background color */
584 case VBI_SEMI_TRANSPARENT:
587 /* Full text transparency. only foreground color is show */
588 case VBI_TRANSPARENT_FULL:
589 if( (*p_pixel) == (0xff000000 | p_page.color_map[background] ) )
600 static int RequestPage( vlc_object_t *p_this, char const *psz_cmd,
601 vlc_value_t oldval, vlc_value_t newval, void *p_data )
603 decoder_sys_t *p_sys = p_data;
604 VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
606 vlc_mutex_lock( &p_sys->lock );
607 switch( newval.i_int )
610 p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[0].pgno );
611 p_sys->i_wanted_subpage = p_sys->nav_link[0].subno;
614 p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[1].pgno );
615 p_sys->i_wanted_subpage = p_sys->nav_link[1].subno;
617 case ZVBI_KEY_YELLOW:
618 p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[2].pgno );
619 p_sys->i_wanted_subpage = p_sys->nav_link[2].subno;
622 p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[3].pgno );
623 p_sys->i_wanted_subpage = p_sys->nav_link[3].subno;
626 p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[5].pgno ); /* #4 is SKIPPED */
627 p_sys->i_wanted_subpage = p_sys->nav_link[5].subno;
630 if( newval.i_int > 0 && newval.i_int < 999 )
632 p_sys->i_wanted_page = newval.i_int;
633 p_sys->i_wanted_subpage = VBI_ANY_SUBNO;
635 vlc_mutex_unlock( &p_sys->lock );
640 static int Opaque( vlc_object_t *p_this, char const *psz_cmd,
641 vlc_value_t oldval, vlc_value_t newval, void *p_data )
643 decoder_sys_t *p_sys = p_data;
644 VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
646 vlc_mutex_lock( &p_sys->lock );
647 p_sys->b_opaque = newval.b_bool;
648 p_sys->b_update = true;
649 vlc_mutex_unlock( &p_sys->lock );
654 static int Position( vlc_object_t *p_this, char const *psz_cmd,
655 vlc_value_t oldval, vlc_value_t newval, void *p_data )
657 decoder_sys_t *p_sys = p_data;
658 VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
660 vlc_mutex_lock( &p_sys->lock );
661 p_sys->i_align = newval.i_int;
662 vlc_mutex_unlock( &p_sys->lock );
667 static int EventKey( vlc_object_t *p_this, char const *psz_cmd,
668 vlc_value_t oldval, vlc_value_t newval, void *p_data )
670 decoder_t *p_dec = p_data;
671 decoder_sys_t *p_sys = p_dec->p_sys;
673 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
675 /* FIXME: Capture + and - key for subpage browsing */
676 if( newval.i_int == '-' || newval.i_int == '+' )
678 vlc_mutex_lock( &p_sys->lock );
679 if( p_sys->i_wanted_subpage == VBI_ANY_SUBNO && newval.i_int == '+' )
680 p_sys->i_wanted_subpage = vbi_dec2bcd(1);
681 else if ( newval.i_int == '+' )
682 p_sys->i_wanted_subpage = vbi_add_bcd( p_sys->i_wanted_subpage, 1);
683 else if( newval.i_int == '-')
684 p_sys->i_wanted_subpage = vbi_add_bcd( p_sys->i_wanted_subpage, 0xF9999999); /* BCD complement - 1 */
686 if ( !vbi_bcd_digits_greater( p_sys->i_wanted_subpage, 0x00 ) || vbi_bcd_digits_greater( p_sys->i_wanted_subpage, 0x99 ) )
687 p_sys->i_wanted_subpage = VBI_ANY_SUBNO;
689 vout_OSDMessage( p_this, DEFAULT_CHAN, "%s: %d", _("Subpage"), vbi_bcd2dec( p_sys->i_wanted_subpage) );
691 p_sys->b_update = true;
692 vlc_mutex_unlock( &p_sys->lock );
695 /* Capture 0-9 for page selection */
696 if( newval.i_int < '0' || newval.i_int > '9' )
699 vlc_mutex_lock( &p_sys->lock );
700 p_sys->i_key[0] = p_sys->i_key[1];
701 p_sys->i_key[1] = p_sys->i_key[2];
702 p_sys->i_key[2] = (int)(newval.i_int - '0');
703 vout_OSDMessage( p_this, DEFAULT_CHAN, "%s: %c%c%c", _("Page"), (char)(p_sys->i_key[0]+'0'), (char)(p_sys->i_key[1]+'0'), (char)(p_sys->i_key[2]+'0') );
707 if( p_sys->i_key[0] > 0 && p_sys->i_key[0] <= 8 &&
708 p_sys->i_key[1] >= 0 && p_sys->i_key[1] <= 9 &&
709 p_sys->i_key[2] >= 0 && p_sys->i_key[2] <= 9 )
711 i_new_page = p_sys->i_key[0]*100 + p_sys->i_key[1]*10 + p_sys->i_key[2];
712 p_sys->i_key[0] = p_sys->i_key[1] = p_sys->i_key[2] = '*' - '0';
714 vlc_mutex_unlock( &p_sys->lock );
717 var_SetInteger( p_dec, "vbi-page", i_new_page );