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>
51 /*****************************************************************************
53 *****************************************************************************/
54 static int Open ( vlc_object_t * );
55 static void Close( vlc_object_t * );
57 #define PAGE_TEXT N_("Teletext page")
58 #define PAGE_LONGTEXT N_("Open the indicated Teletext page." \
59 "Default page is index 100")
61 #define OPAQUE_TEXT N_("Teletext transparency")
62 #define OPAQUE_LONGTEXT N_("Setting vbi-opaque to false " \
63 "makes the boxed text transparent." )
65 #define POS_TEXT N_("Teletext alignment")
66 #define POS_LONGTEXT N_( \
67 "You can enforce the teletext position on the video " \
68 "(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \
69 "also use combinations of these values, eg. 6 = top-right).")
71 #define TELX_TEXT N_("Teletext text subtitles")
72 #define TELX_LONGTEXT N_( "Output teletext subtitles as text " \
73 "instead of as RGBA" )
75 static const int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
76 static const char *const ppsz_pos_descriptions[] =
77 { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
78 N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
81 set_description( N_("VBI and Teletext decoder") )
82 set_shortname( N_("VBI & Teletext") )
83 set_capability( "decoder", 51 )
84 set_category( CAT_INPUT )
85 set_subcategory( SUBCAT_INPUT_SCODEC )
86 set_callbacks( Open, Close )
88 add_integer( "vbi-page", 100,
89 PAGE_TEXT, PAGE_LONGTEXT, false )
90 add_bool( "vbi-opaque", true,
91 OPAQUE_TEXT, OPAQUE_LONGTEXT, false )
92 add_integer( "vbi-position", 4, POS_TEXT, POS_LONGTEXT, false )
93 change_integer_list( pi_pos_values, ppsz_pos_descriptions );
94 add_bool( "vbi-text", false,
95 TELX_TEXT, TELX_LONGTEXT, false )
98 /****************************************************************************
100 ****************************************************************************/
102 // #define ZVBI_DEBUG
104 //Guessing table for missing "default region triplet"
105 static const int pi_default_triplet[] = {
108 24,24,24,24, //ssc scr slv rum
109 32,32,32,32,32, //est lit rus bul ukr
114 static const char *const ppsz_default_triplet[] = {
117 "ssc", "scr", "slv", "rum",
118 "est", "lit", "rus", "bul", "ukr",
126 ZVBI_KEY_RED = 'r' << 16,
127 ZVBI_KEY_GREEN = 'g' << 16,
128 ZVBI_KEY_YELLOW = 'y' << 16,
129 ZVBI_KEY_BLUE = 'b' << 16,
130 ZVBI_KEY_INDEX = 'i' << 16,
134 DATA_UNIT_EBU_TELETEXT_NON_SUBTITLE = 0x02,
135 DATA_UNIT_EBU_TELETEXT_SUBTITLE = 0x03,
136 DATA_UNIT_EBU_TELETEXT_INVERTED = 0x0C,
138 DATA_UNIT_ZVBI_WSS_CPR1204 = 0xB4,
139 DATA_UNIT_ZVBI_CLOSED_CAPTION_525 = 0xB5,
140 DATA_UNIT_ZVBI_MONOCHROME_SAMPLES_525 = 0xB6,
142 DATA_UNIT_VPS = 0xC3,
143 DATA_UNIT_WSS = 0xC4,
144 DATA_UNIT_CLOSED_CAPTION = 0xC5,
145 DATA_UNIT_MONOCHROME_SAMPLES = 0xC6,
147 DATA_UNIT_STUFFING = 0xFF,
150 #define MAX_SLICES 32
154 vbi_decoder * p_vbi_dec;
155 vbi_sliced p_vbi_sliced[MAX_SLICES];
156 unsigned int i_last_page;
158 bool b_text; /* Subtitles as text */
160 vlc_mutex_t lock; /* Lock to protect the following variables */
161 /* Positioning of Teletext images */
164 unsigned int i_wanted_page;
165 unsigned int i_wanted_subpage;
174 static subpicture_t *Decode( decoder_t *, block_t ** );
176 static subpicture_t *Subpicture( decoder_t *p_dec, video_format_t *p_fmt,
178 int i_columns, int i_rows,
179 int i_align, mtime_t i_pts );
181 static void EventHandler( vbi_event *ev, void *user_data );
182 static int OpaquePage( picture_t *p_src, const vbi_page p_page,
183 const video_format_t fmt, bool b_opaque );
185 /* Properties callbacks */
186 static int RequestPage( vlc_object_t *p_this, char const *psz_cmd,
187 vlc_value_t oldval, vlc_value_t newval, void *p_data );
188 static int Opaque( vlc_object_t *p_this, char const *psz_cmd,
189 vlc_value_t oldval, vlc_value_t newval, void *p_data );
190 static int Position( vlc_object_t *p_this, char const *psz_cmd,
191 vlc_value_t oldval, vlc_value_t newval, void *p_data );
192 static int EventKey( vlc_object_t *p_this, char const *psz_cmd,
193 vlc_value_t oldval, vlc_value_t newval, void *p_data );
195 /*****************************************************************************
196 * Open: probe the decoder and return score
197 *****************************************************************************
198 * Tries to launch a decoder and return score so that the interface is able
200 *****************************************************************************/
201 static int Open( vlc_object_t *p_this )
203 decoder_t *p_dec = (decoder_t *) p_this;
204 decoder_sys_t *p_sys = NULL;
206 if( p_dec->fmt_in.i_codec != VLC_CODEC_TELETEXT )
209 p_dec->pf_decode_sub = Decode;
210 p_sys = p_dec->p_sys = calloc( 1, 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 vlc_mutex_init( &p_sys->lock );
219 if( p_sys->p_vbi_dec == NULL )
221 msg_Err( p_dec, "VBI decoder could not be created." );
226 /* Some broadcasters in countries with level 1 and level 1.5 still not send a G0 to do
227 * matches against table 32 of ETSI 300 706. We try to do some best effort guessing
228 * This is not perfect, but might handle some cases where we know the vbi language
229 * is known. It would be better if people started sending G0 */
230 for( int i = 0; ppsz_default_triplet[i] != NULL; i++ )
232 if( p_dec->fmt_in.psz_language && !strcasecmp( p_dec->fmt_in.psz_language, ppsz_default_triplet[i] ) )
234 vbi_teletext_set_default_region( p_sys->p_vbi_dec, pi_default_triplet[i]);
235 msg_Dbg( p_dec, "overwriting default zvbi region: %d", pi_default_triplet[i] );
239 vbi_event_handler_register( p_sys->p_vbi_dec, VBI_EVENT_TTX_PAGE | VBI_EVENT_NETWORK |
241 VBI_EVENT_CAPTION | VBI_EVENT_TRIGGER |
242 VBI_EVENT_ASPECT | VBI_EVENT_PROG_INFO | VBI_EVENT_NETWORK_ID |
244 0 , EventHandler, p_dec );
246 /* Create the var on vlc_global. */
247 p_sys->i_wanted_page = var_CreateGetInteger( p_dec, "vbi-page" );
248 var_AddCallback( p_dec, "vbi-page", RequestPage, p_sys );
250 /* Check if the Teletext track has a known "initial page". */
251 if( p_sys->i_wanted_page == 100 && p_dec->fmt_in.subs.teletext.i_magazine != -1 )
253 p_sys->i_wanted_page = 100 * p_dec->fmt_in.subs.teletext.i_magazine +
254 vbi_bcd2dec( p_dec->fmt_in.subs.teletext.i_page );
255 var_SetInteger( p_dec, "vbi-page", p_sys->i_wanted_page );
257 p_sys->i_wanted_subpage = VBI_ANY_SUBNO;
259 p_sys->b_opaque = var_CreateGetBool( p_dec, "vbi-opaque" );
260 var_AddCallback( p_dec, "vbi-opaque", Opaque, p_sys );
262 p_sys->i_align = var_CreateGetInteger( p_dec, "vbi-position" );
263 var_AddCallback( p_dec, "vbi-position", Position, p_sys );
265 p_sys->b_text = var_CreateGetBool( p_dec, "vbi-text" );
266 // var_AddCallback( p_dec, "vbi-text", Text, p_sys );
268 /* Listen for keys */
269 var_AddCallback( p_dec->p_libvlc, "key-pressed", EventKey, p_dec );
271 es_format_Init( &p_dec->fmt_out, SPU_ES, VLC_CODEC_SPU );
273 p_dec->fmt_out.video.i_chroma = VLC_CODEC_TEXT;
275 p_dec->fmt_out.video.i_chroma = VLC_CODEC_RGBA;
279 /*****************************************************************************
281 *****************************************************************************/
282 static void Close( vlc_object_t *p_this )
284 decoder_t *p_dec = (decoder_t*) p_this;
285 decoder_sys_t *p_sys = p_dec->p_sys;
287 var_DelCallback( p_dec, "vbi-position", Position, p_sys );
288 var_DelCallback( p_dec, "vbi-opaque", Opaque, p_sys );
289 var_DelCallback( p_dec, "vbi-page", RequestPage, p_sys );
290 var_DelCallback( p_dec->p_libvlc, "key-pressed", EventKey, p_dec );
292 vlc_mutex_destroy( &p_sys->lock );
294 if( p_sys->p_vbi_dec )
295 vbi_decoder_delete( p_sys->p_vbi_dec );
299 #ifdef WORDS_BIGENDIAN
300 # define ZVBI_PIXFMT_RGBA32 VBI_PIXFMT_RGBA32_BE
302 # define ZVBI_PIXFMT_RGBA32 VBI_PIXFMT_RGBA32_LE
305 /*****************************************************************************
307 *****************************************************************************/
308 static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block )
310 decoder_sys_t *p_sys = p_dec->p_sys;
312 subpicture_t *p_spu = NULL;
314 bool b_cached = false;
317 if( (pp_block == NULL) || (*pp_block == NULL) )
323 if( p_block->i_buffer > 0 &&
324 ( ( p_block->p_buffer[0] >= 0x10 && p_block->p_buffer[0] <= 0x1f ) ||
325 ( p_block->p_buffer[0] >= 0x99 && p_block->p_buffer[0] <= 0x9b ) ) )
327 vbi_sliced *p_sliced = p_sys->p_vbi_sliced;
328 unsigned int i_lines = 0;
332 while( p_block->i_buffer >= 2 )
334 int i_id = p_block->p_buffer[0];
335 unsigned i_size = p_block->p_buffer[1];
337 if( 2 + i_size > p_block->i_buffer )
340 if( ( i_id == 0x02 || i_id == 0x03 ) && i_size >= 44 && i_lines < MAX_SLICES )
342 unsigned line_offset = p_block->p_buffer[2] & 0x1f;
343 unsigned field_parity = p_block->p_buffer[2] & 0x20;
345 p_sliced[i_lines].id = VBI_SLICED_TELETEXT_B;
346 if( line_offset > 0 )
347 p_sliced[i_lines].line = line_offset + (field_parity ? 0 : 313);
349 p_sliced[i_lines].line = 0;
350 for( int i = 0; i < 42; i++ )
351 p_sliced[i_lines].data[i] = vbi_rev8( p_block->p_buffer[4 + i] );
355 p_block->i_buffer -= 2 + i_size;
356 p_block->p_buffer += 2 + i_size;
360 vbi_decode( p_sys->p_vbi_dec, p_sliced, i_lines, (double)p_block->i_pts / 1000000 );
364 vlc_mutex_lock( &p_sys->lock );
365 const int i_align = p_sys->i_align;
366 const unsigned int i_wanted_page = p_sys->i_wanted_page;
367 const unsigned int i_wanted_subpage = p_sys->i_wanted_subpage;
368 const bool b_opaque = p_sys->b_opaque;
369 vlc_mutex_unlock( &p_sys->lock );
371 /* Try to see if the page we want is in the cache yet */
372 memset( &p_page, 0, sizeof(vbi_page) );
373 b_cached = vbi_fetch_vt_page( p_sys->p_vbi_dec, &p_page,
374 vbi_dec2bcd( i_wanted_page ),
375 i_wanted_subpage, VBI_WST_LEVEL_3p5,
378 if( i_wanted_page == p_sys->i_last_page && !p_sys->b_update )
383 if( p_sys->i_last_page != i_wanted_page )
385 /* We need to reset the subtitle */
386 p_spu = Subpicture( p_dec, &fmt, true,
387 p_page.columns, p_page.rows,
388 i_align, p_block->i_pts );
391 p_spu->p_region->psz_text = strdup("");
393 p_sys->b_update = true;
394 p_sys->i_last_page = i_wanted_page;
400 p_sys->b_update = false;
401 p_sys->i_last_page = i_wanted_page;
403 msg_Dbg( p_dec, "we now have page: %d ready for display",
406 /* If there is a page or sub to render, then we do that here */
407 /* Create the subpicture unit */
408 p_spu = Subpicture( p_dec, &fmt, p_sys->b_text,
409 p_page.columns, p_page.rows,
410 i_align, p_block->i_pts );
416 unsigned int i_textsize = 7000;
418 char p_text[i_textsize+1];
420 i_total = vbi_print_page_region( &p_page, p_text, i_textsize,
421 "UTF-8", 0, 0, 0, 0, p_page.columns, p_page.rows );
422 p_text[i_total] = '\0';
423 /* Strip off the pagenumber */
426 p_spu->p_region->psz_text = strdup( &p_text[8] );
429 msg_Info( p_dec, "page %x-%x(%d)\n%s", p_page.pgno, p_page.subno, i_total, p_text );
434 picture_t *p_pic = p_spu->p_region->p_picture;
436 /* ZVBI is stupid enough to assume pitch == width */
437 p_pic->p->i_pitch = 4 * fmt.i_width;
438 vbi_draw_vt_page( &p_page, ZVBI_PIXFMT_RGBA32,
439 p_spu->p_region->p_picture->p->p_pixels, 1, 1 );
441 vlc_mutex_lock( &p_sys->lock );
442 memcpy( p_sys->nav_link, &p_page.nav_link, sizeof( p_sys->nav_link )) ;
443 vlc_mutex_unlock( &p_sys->lock );
445 OpaquePage( p_pic, p_page, fmt, b_opaque );
449 vbi_unref_page( &p_page );
450 block_Release( p_block );
454 vbi_unref_page( &p_page );
457 decoder_DeleteSubpicture( p_dec, p_spu );
461 block_Release( p_block );
465 static subpicture_t *Subpicture( decoder_t *p_dec, video_format_t *p_fmt,
467 int i_columns, int i_rows, int i_align,
473 /* If there is a page or sub to render, then we do that here */
474 /* Create the subpicture unit */
475 p_spu = decoder_NewSubpicture( p_dec, NULL );
478 msg_Warn( p_dec, "can't get spu buffer" );
482 memset( &fmt, 0, sizeof(video_format_t) );
483 fmt.i_chroma = b_text ? VLC_CODEC_TEXT : VLC_CODEC_RGBA;
488 fmt.i_bits_per_pixel = 0;
492 fmt.i_width = fmt.i_visible_width = i_columns * 12;
493 fmt.i_height = fmt.i_visible_height = i_rows * 10;
494 fmt.i_bits_per_pixel = 32;
496 fmt.i_x_offset = fmt.i_y_offset = 0;
498 p_spu->p_region = subpicture_region_New( &fmt );
499 if( p_spu->p_region == NULL )
501 msg_Err( p_dec, "cannot allocate SPU region" );
502 decoder_DeleteSubpicture( p_dec, p_spu );
506 p_spu->p_region->i_x = 0;
507 p_spu->p_region->i_y = 0;
508 p_spu->p_region->i_align = i_align;
510 p_spu->i_start = i_pts;
512 p_spu->b_ephemer = true;
513 p_spu->b_absolute = false;
517 p_spu->i_original_picture_width = fmt.i_width;
518 p_spu->i_original_picture_height = fmt.i_height;
526 static void EventHandler( vbi_event *ev, void *user_data )
528 decoder_t *p_dec = (decoder_t *)user_data;
529 decoder_sys_t *p_sys = p_dec->p_sys;
531 if( ev->type == VBI_EVENT_TTX_PAGE )
534 msg_Info( p_dec, "Page %03x.%02x ",
535 ev->ev.ttx_page.pgno,
536 ev->ev.ttx_page.subno & 0xFF);
538 if( p_sys->i_last_page == vbi_bcd2dec( ev->ev.ttx_page.pgno ) )
539 p_sys->b_update = true;
541 if( ev->ev.ttx_page.clock_update )
542 msg_Dbg( p_dec, "clock" );
543 if( ev->ev.ttx_page.header_update )
544 msg_Dbg( p_dec, "header" );
547 else if( ev->type == VBI_EVENT_CLOSE )
548 msg_Dbg( p_dec, "Close event" );
549 else if( ev->type == VBI_EVENT_CAPTION )
550 msg_Dbg( p_dec, "Caption line: %x", ev->ev.caption.pgno );
551 else if( ev->type == VBI_EVENT_NETWORK )
553 msg_Dbg( p_dec, "Network change");
554 vbi_network n = ev->ev.network;
555 msg_Dbg( p_dec, "Network id:%d name: %s, call: %s ", n.nuid, n.name, n.call );
557 else if( ev->type == VBI_EVENT_TRIGGER )
558 msg_Dbg( p_dec, "Trigger event" );
559 else if( ev->type == VBI_EVENT_ASPECT )
560 msg_Dbg( p_dec, "Aspect update" );
561 else if( ev->type == VBI_EVENT_PROG_INFO )
562 msg_Dbg( p_dec, "Program info received" );
563 else if( ev->type == VBI_EVENT_NETWORK_ID )
564 msg_Dbg( p_dec, "Network ID changed" );
567 static int OpaquePage( picture_t *p_src, const vbi_page p_page,
568 const video_format_t fmt, bool b_opaque )
572 assert( fmt.i_chroma == VLC_CODEC_RGBA );
574 /* Kludge since zvbi doesn't provide an option to specify opacity. */
575 for( y = 0; y < fmt.i_height; y++ )
577 for( x = 0; x < fmt.i_width; x++ )
579 const vbi_opacity opacity = p_page.text[ y/10 * p_page.columns + x/12 ].opacity;
580 const int background = p_page.text[ y/10 * p_page.columns + x/12 ].background;
581 uint32_t *p_pixel = (uint32_t*)&p_src->p->p_pixels[y * p_src->p->i_pitch + 4*x];
585 /* Show video instead of this character */
586 case VBI_TRANSPARENT_SPACE:
589 /* Display foreground and background color */
590 /* To make the boxed text "closed captioning" transparent
591 * change true to false.
594 /* alpha blend video into background color */
595 case VBI_SEMI_TRANSPARENT:
598 /* Full text transparency. only foreground color is show */
599 case VBI_TRANSPARENT_FULL:
600 if( (*p_pixel) == (0xff000000 | p_page.color_map[background] ) )
611 static int RequestPage( vlc_object_t *p_this, char const *psz_cmd,
612 vlc_value_t oldval, vlc_value_t newval, void *p_data )
614 decoder_sys_t *p_sys = p_data;
615 VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
617 vlc_mutex_lock( &p_sys->lock );
618 switch( newval.i_int )
621 p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[0].pgno );
622 p_sys->i_wanted_subpage = p_sys->nav_link[0].subno;
625 p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[1].pgno );
626 p_sys->i_wanted_subpage = p_sys->nav_link[1].subno;
628 case ZVBI_KEY_YELLOW:
629 p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[2].pgno );
630 p_sys->i_wanted_subpage = p_sys->nav_link[2].subno;
633 p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[3].pgno );
634 p_sys->i_wanted_subpage = p_sys->nav_link[3].subno;
637 p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[5].pgno ); /* #4 is SKIPPED */
638 p_sys->i_wanted_subpage = p_sys->nav_link[5].subno;
641 if( newval.i_int > 0 && newval.i_int < 999 )
643 p_sys->i_wanted_page = newval.i_int;
644 p_sys->i_wanted_subpage = VBI_ANY_SUBNO;
646 vlc_mutex_unlock( &p_sys->lock );
651 static int Opaque( vlc_object_t *p_this, char const *psz_cmd,
652 vlc_value_t oldval, vlc_value_t newval, void *p_data )
654 decoder_sys_t *p_sys = p_data;
655 VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
657 vlc_mutex_lock( &p_sys->lock );
658 p_sys->b_opaque = newval.b_bool;
659 p_sys->b_update = true;
660 vlc_mutex_unlock( &p_sys->lock );
665 static int Position( vlc_object_t *p_this, char const *psz_cmd,
666 vlc_value_t oldval, vlc_value_t newval, void *p_data )
668 decoder_sys_t *p_sys = p_data;
669 VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
671 vlc_mutex_lock( &p_sys->lock );
672 p_sys->i_align = newval.i_int;
673 vlc_mutex_unlock( &p_sys->lock );
678 static int EventKey( vlc_object_t *p_this, char const *psz_cmd,
679 vlc_value_t oldval, vlc_value_t newval, void *p_data )
681 decoder_t *p_dec = p_data;
682 decoder_sys_t *p_sys = p_dec->p_sys;
684 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED( p_this );
686 /* FIXME: Capture + and - key for subpage browsing */
687 if( newval.i_int == '-' || newval.i_int == '+' )
689 vlc_mutex_lock( &p_sys->lock );
690 if( p_sys->i_wanted_subpage == VBI_ANY_SUBNO && newval.i_int == '+' )
691 p_sys->i_wanted_subpage = vbi_dec2bcd(1);
692 else if ( newval.i_int == '+' )
693 p_sys->i_wanted_subpage = vbi_add_bcd( p_sys->i_wanted_subpage, 1);
694 else if( newval.i_int == '-')
695 p_sys->i_wanted_subpage = vbi_add_bcd( p_sys->i_wanted_subpage, 0xF9999999); /* BCD complement - 1 */
697 if ( !vbi_bcd_digits_greater( p_sys->i_wanted_subpage, 0x00 ) || vbi_bcd_digits_greater( p_sys->i_wanted_subpage, 0x99 ) )
698 p_sys->i_wanted_subpage = VBI_ANY_SUBNO;
700 msg_Info( p_dec, "subpage: %d",
701 vbi_bcd2dec( p_sys->i_wanted_subpage) );
703 p_sys->b_update = true;
704 vlc_mutex_unlock( &p_sys->lock );
707 /* Capture 0-9 for page selection */
708 if( newval.i_int < '0' || newval.i_int > '9' )
711 vlc_mutex_lock( &p_sys->lock );
712 p_sys->i_key[0] = p_sys->i_key[1];
713 p_sys->i_key[1] = p_sys->i_key[2];
714 p_sys->i_key[2] = (int)(newval.i_int - '0');
715 msg_Info( p_dec, "page: %c%c%c", (char)(p_sys->i_key[0]+'0'),
716 (char)(p_sys->i_key[1]+'0'), (char)(p_sys->i_key[2]+'0') );
720 if( p_sys->i_key[0] > 0 && p_sys->i_key[0] <= 8 &&
721 p_sys->i_key[1] >= 0 && p_sys->i_key[1] <= 9 &&
722 p_sys->i_key[2] >= 0 && p_sys->i_key[2] <= 9 )
724 i_new_page = p_sys->i_key[0]*100 + p_sys->i_key[1]*10 + p_sys->i_key[2];
725 p_sys->i_key[0] = p_sys->i_key[1] = p_sys->i_key[2] = '*' - '0';
727 vlc_mutex_unlock( &p_sys->lock );
730 var_SetInteger( p_dec, "vbi-page", i_new_page );