diff options
Diffstat (limited to 'gst/vbidec/vbidata.c')
| -rw-r--r-- | gst/vbidec/vbidata.c | 1079 |
1 files changed, 1079 insertions, 0 deletions
diff --git a/gst/vbidec/vbidata.c b/gst/vbidec/vbidata.c new file mode 100644 index 00000000..14d7a7e0 --- /dev/null +++ b/gst/vbidec/vbidata.c @@ -0,0 +1,1079 @@ +/** + * Copyright (c) 2002 Billy Biggs <vektor@dumbterm.net>. + * Copyright (c) 2002 Doug Bell <drbell@users.sourceforge.net> + * + * CC code from Nathan Laredo's ccdecode, used under the GPL. + * Lots of 'hey what does this mean?' code from + * Billy Biggs and Doug Bell, like all the crap with + * XDS and stuff. Some help from Zapping's vbi library by + * Michael H. Schimek and others, released under the GPL. + * + * Modified and adapted to GStreamer by + * David I. Lehn <dlehn@users.sourceforge.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <string.h> +#include <fcntl.h> +#include <ctype.h> +#include <unistd.h> +#include <errno.h> +#include "vbidata.h" +#include "vbiscreen.h" +/*#include "tvtimeosd.h"*/ + +#define DO_LINE 11 +static int pll = 0; + +struct vbidata_s +{ + int fd; + vbiscreen_t *vs; + /*tvtime_osd_t *osd;*/ + char buf[ 65536 ]; + int wanttop; + int wanttext; + + unsigned int colour; + int row, ital; + int indent, ul; + int chan; + + unsigned int current_colour; + int current_row, current_ital; + int current_indent, current_ul; + int current_chan; + int current_istext; + + int initialised; + int enabled; + int lastcode; + int lastcount; + int verbose; + + /* XDS data */ + char xds_packet[ 2048 ]; + int xds_cursor; + + char *program_name; + char *network_name; + char *call_letters; + const char *rating; + const char *program_type; + int start_day; + int start_month; + int start_min; + int start_hour; + int length_hour; + int length_min; + int length_elapsed_hour; + int length_elapsed_min; + int length_elapsed_sec; + char *program_desc[8]; +}; + + +/* this is NOT exactly right */ +//static char *ccode = " !\"#$%&'()\0341+,-./0123456789:;<=>?@" +static char *ccode = " !\"#$%&'()a+,-./0123456789:;<=>?@" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" +// "abcdefghijklmnopqrstuvwxyz" +// "[\0351]\0355\0363\0372abcdefghijklmnopqr" + "[e]iouabcdefghijklmnopqr" +// "stuvwxyz\0347\0367\0245\0244\0240"; + "stuvwxyzcoNn "; +static char *wccode = "\0256\0260\0275\0277T\0242\0243#\0340 " + "\0350\0354\0362\0371"; + +static char *extcode1 = "\0301\0311\0323\0332\0334\0374" + "`\0241*'-\0251S*\"\"\0300\0302" + "\0307\0310\0312\0313\0353\0316\0317\0357" + "\0324\0331\0371\0333\0253\0273"; + +static char *extcode2 = "\0303\0343\0315\0314\0354\0322\0362\0325" + "{}\\^_|~\0304\0344\0326\0366\0337\0245\0244|" + "\0305\0345\0330\0370++++"; + +int parityok(int n) +{ /* check parity for 2 bytes packed in n */ + int j, k; + for (k = 0, j = 0; j < 7; j++) + if (n & (1 << j)) + k++; + if ((k & 1) && (n & 0x80)) + return 0; + for (k = 0, j = 8; j < 15; j++) + if (n & (1 << j)) + k++; + if ((k & 1) && (n & 0x8000)) + return 0; + return 1; +} + +int decodebit(unsigned char *data, int threshold) +{ + return ((data[0] + data[1] + data[2] + data[3] + data[4] + data[5] + + data[6] + data[7] + data[8] + data[9] + data[10] + data[11] + + data[12] + data[13] + data[14] + data[15] + data[16] + data[17] + + data[18] + data[19] + data[20] + data[21] + data[22] + data[23] + + data[24] + data[25] + data[26] + data[27] + data[28] + data[29] + + data[30] + data[31])>>5 > threshold); +} + + +int ccdecode(unsigned char *vbiline) +{ + int max = 0, maxval = 0, minval = 255, i = 0, clk = 0, tmp = 0; + int sample, packedbits = 0; + + for (i=0; i<250; i++) { + sample = vbiline[i]; + if (sample - maxval > 10) + (maxval = sample, max = i); + if (sample < minval) + minval = sample; + if (maxval - sample > 40) + break; + } + sample = ((maxval + minval) >> 1); + pll = max; + + /* found clock lead-in, double-check start */ +#ifndef PAL_DECODE + i = max + 478; +#else + i = max + 538; +#endif + if (!decodebit(&vbiline[i], sample)) + return 0; +#ifndef PAL_DECODE + tmp = i + 57; /* tmp = data bit zero */ +#else + tmp = i + 71; +#endif + for (i = 0; i < 16; i++) { +#ifndef PAL_DECODE + clk = tmp + i * 57; +#else + clk = tmp + i * 71; +#endif + if (decodebit(&vbiline[clk], sample)) { + packedbits |= 1 << i; + } + } + if (parityok(packedbits)) + return packedbits; + return 0; +} /* ccdecode */ + +const char *movies[] = { "N/A", "G", "PG", "PG-13", "R", + "NC-17", "X", "Not Rated" }; +const char *usa_tv[] = { "Not Rated", "TV-Y", "TV-Y7", "TV-G", + "TV-PG", "TV-14", "TV-MA", "Not Rated" }; +const char *cane_tv[] = { "Exempt", "C", "C8+", "G", "PG", + "14+", "18+", "Reserved" }; +const char *canf_tv[] = { "Exempt", "G", "8 ans +", "13 ans +", + "16 ans +", "18 ans +", "Reserved", + "Reserved" }; + +const char *months[] = { 0, "Jan", "Feb", "Mar", "Apr", "May", + "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; + +static const char *eia608_program_type[ 96 ] = { + "education", "entertainment", "movie", "news", "religious", "sports", + "other", "action", "advertisement", "animated", "anthology", + "automobile", "awards", "baseball", "basketball", "bulletin", "business", + "classical", "college", "combat", "comedy", "commentary", "concert", + "consumer", "contemporary", "crime", "dance", "documentary", "drama", + "elementary", "erotica", "exercise", "fantasy", "farm", "fashion", + "fiction", "food", "football", "foreign", "fund raiser", "game/quiz", + "garden", "golf", "government", "health", "high school", "history", + "hobby", "hockey", "home", "horror", "information", "instruction", + "international", "interview", "language", "legal", "live", "local", + "math", "medical", "meeting", "military", "miniseries", "music", "mystery", + "national", "nature", "police", "politics", "premiere", "prerecorded", + "product", "professional", "public", "racing", "reading", "repair", "repeat", + "review", "romance", "science", "series", "service", "shopping", + "soap opera", "special", "suspense", "talk", "technical", "tennis", + "travel", "variety", "video", "weather", "western" +}; + + +static void parse_xds_packet( vbidata_t *vbi, char *packet, int length ) +{ + int sum = 0; + int i; + + if( !vbi ) return; + + /* Check the checksum for validity of the packet. */ + for( i = 0; i < length - 1; i++ ) { + sum += packet[ i ]; + } + if( (((~sum) & 0x7f) + 1) != packet[ length - 1 ] ) { + return; + } + + /* Stick a null at the end, and cut off the last two characters. */ + packet[ length - 2 ] = '\0'; + length -= 2; + + if( packet[ 0 ] == 0x01 && packet[ 1 ] == 0x03 ) { + if( vbi->program_name && !strcmp(vbi->program_name, packet + 2 ) ) { + return; + } + if( vbi->verbose ) fprintf( stderr, "Current program name: '%s'\n", packet + 2 ); + if( vbi->program_name ) free( vbi->program_name ); + vbi->program_name = strdup(packet + 2); + /*tvtime_osd_set_show_name( vbi->osd, vbi->program_name );*/ + } else if( packet[ 0 ] == 0x03 && packet[ 1 ] == 0x03 ) { + if( vbi->verbose ) fprintf( stderr, "Future program name: '%s'\n", packet + 2 ); + } else if( packet[ 0 ] == 0x05 && packet[ 1 ] == 0x01 ) { + if( vbi->network_name && !strcmp(vbi->network_name, packet + 2 ) ) { + return; + } + + if( vbi->verbose ) fprintf( stderr, "Network name: '%s'\n", packet + 2 ); + if( vbi->network_name ) free( vbi->network_name ); + vbi->network_name = strdup( packet + 2 ); + /*tvtime_osd_set_network_name( vbi->osd, vbi->network_name );*/ + } else if( packet[ 0 ] == 0x01 && packet[ 1 ] == 0x05 ) { + int movie_rating = packet[ 2 ] & 7; + int scheme = (packet[ 2 ] & 56) >> 3; + int tv_rating = packet[ 3 ] & 7; + int VSL = packet[ 3 ] & 56; + const char * str; + + switch( VSL | scheme ) { + case 3: /* Canadian English TV */ + str = cane_tv[ tv_rating ]; + break; + case 7: /* Canadian French TV */ + str = canf_tv[ tv_rating ]; + break; + case 19: /* Reserved */ + case 31: + str = ""; + break; + default: + if( ((VSL | scheme) & 3) == 1 ) { + /* USA TV */ + str = usa_tv[ tv_rating ]; + } else { + /* MPAA Movie Rating */ + str = movies[ movie_rating ]; + } + break; + } + + if( vbi->rating && !strcmp(vbi->rating, str ) ) { + return; + } + + if( vbi->verbose ) fprintf( stderr, "Show rating: %s", str ); + if( ((VSL | scheme) & 3) == 1 || ((VSL | scheme) & 3) == 0 ) { + /* show VSLD for the americans */ + if( (VSL | scheme) & 32 ) { + if( vbi->verbose ) fprintf( stderr, " V" ); + } + if( (VSL | scheme) & 16 ) { + if( vbi->verbose ) fprintf( stderr, " S" ); + } + if( (VSL | scheme) & 8 ) { + if( vbi->verbose ) fprintf( stderr, " L" ); + } + if( (VSL | scheme) & 4 ) { + if( vbi->verbose ) fprintf( stderr, " D" ); + } + } + if( vbi->verbose ) fprintf( stderr, "\n" ); + vbi->rating = str; + /*tvtime_osd_set_show_rating( vbi->osd, vbi->rating );*/ + } else if( packet[ 0 ] == 0x05 && packet[ 1 ] == 0x02 ) { + if( vbi->call_letters && !strcmp(vbi->call_letters, packet + 2 ) ) { + return; + } + + if( vbi->verbose ) fprintf( stderr, "Network call letters: '%s'\n", packet + 2 ); + if( vbi->call_letters ) free( vbi->call_letters ); + vbi->call_letters = strdup( packet + 2 ); + /*tvtime_osd_set_network_call( vbi->osd, vbi->call_letters );*/ + } else if( packet[ 0 ] == 0x01 && packet[ 1 ] == 0x01 ) { + int month = packet[5];// & 15; + int day = packet[4];// & 31; + int hour = packet[3];// & 31; + int min = packet[2];// & 63; + char str[33]; + if( vbi->verbose ) fprintf( stderr, "Program Start: %02d %s, %02d:%02d\n", + day & 31, months[month & 15], hour & 31, min & 63 ); + // packet[ 3 ], packet[ 4 ], packet[ 5 ], packet[ 6 ] ); + //packet[ 5 ] & 31, packet[ 6 ], packet[ 4 ] & 31, packet[ 3 ] & 63 ); + vbi->start_month = month & 15; + vbi->start_day = day & 31; + vbi->start_hour = hour & 31; + vbi->start_min = hour & 63; + snprintf( str, 32, "%02d %s, %02d:%02d", + day & 31, months[month & 15], hour & 31, min & 63 ); + /*tvtime_osd_set_show_start( vbi->osd, str );*/ + } else if( packet[ 0 ] == 0x01 && packet[ 1 ] == 0x04 ) { + if( vbi->verbose ) fprintf( stderr, "Program type: " ); + for( i = 0; i < length - 2; i++ ) { + int cur = packet[ 2 + i ] - 0x20; + if( cur >= 0 && cur < 96 ) { + if( vbi->verbose ) fprintf( stderr, "%s%s", i ? ", " : "", eia608_program_type[ cur ] ); + /* this will cause us to keep only the last type we check */ + vbi->program_type = eia608_program_type[ cur ]; + } + } + if( vbi->verbose ) fprintf( stderr, "\n" ); + } else if( packet[ 0 ] < 0x03 && packet[ 1 ] >= 0x10 && packet[ 1 ] <= 0x17 ) { + + if( vbi->program_desc[ packet[1] & 0xf ] && + !strcmp(vbi->program_desc[ packet[1] & 0xf ], packet + 2 ) ) { + return; + } + + if( vbi->verbose ) fprintf( stderr, "Program Description: Line %d", packet[1] & 0xf ); + if( vbi->verbose ) fprintf( stderr, "%s\n", packet + 2 ); + if( vbi->program_desc[ packet[1] & 0xf ] ) + free( vbi->program_desc[ packet[1] & 0xf ] ); + vbi->program_desc[ packet[1] & 0xf ] = strdup( packet + 2 ); + } else if( packet[ 0 ] == 0x01 && packet[ 1 ] == 0x02 ) { + char str[ 33 ]; + str[0] = 0; + if( vbi->verbose ) fprintf( stderr, "Program Length: %02d:%02d", + packet[ 3 ] & 63, packet[ 2 ] & 63 ); + vbi->length_hour = packet[ 3 ] & 63; + vbi->length_min = packet[ 2 ] & 63; + snprintf( str, 32, "%02d:%02d", + packet[ 3 ] & 63, packet[ 2 ] & 63 ); + if( length > 4 ) { + if( vbi->verbose ) fprintf( stderr, " Elapsed: %02d:%02d", packet[ 5 ] & 63, + packet[ 4 ] & 63 ); + vbi->length_elapsed_hour = packet[ 5 ] & 63; + vbi->length_elapsed_min = packet[ 4 ] & 63; + snprintf( str, 32, "%02d:%02d/%02d:%02d", + packet[ 5 ] & 63, packet[ 4 ] & 63, + packet[ 3 ] & 63, packet[ 2 ] & 63 ); + } else { + vbi->length_elapsed_hour = 0; + vbi->length_elapsed_min = 0; + } + + if( length > 6 ) { + if( vbi->verbose ) fprintf( stderr, ".%02d", packet[ 6 ] & 63 ); + vbi->length_elapsed_hour = packet[ 6 ] & 63; + snprintf( str, 32, "%02d:%02d.%02d/%02d:%02d", + packet[ 5 ] & 63, packet[ 4 ] & 63, packet[ 6 ] & 63, + packet[ 3 ] & 63, packet[ 2 ] & 63 ); + } else { + vbi->length_elapsed_hour = 0; + } + /*tvtime_osd_set_show_length( vbi->osd, str );*/ + if( vbi->verbose ) fprintf( stderr, "\n" ); + } else if( packet[ 0 ] == 0x05 && packet[ 1 ] == 0x04 ) { + if( vbi->verbose ) fprintf( stderr, "Transmission Signal Identifier (TSID): 0x%04x\n", + packet[ 2 ] << 24 | packet[ 3 ] << 16 | packet[ 4 ] << 8 | packet[ 5 ] ); + } else { + /* unknown */ + + if( vbi->verbose ) fprintf( stderr, "Unknown XDS packet, class " ); + switch( packet[ 0 ] ) { + case 0x1: if( vbi->verbose ) fprintf( stderr, "CURRENT start\n" ); break; + case 0x2: if( vbi->verbose ) fprintf( stderr, "CURRENT continue\n" ); break; + + case 0x3: if( vbi->verbose ) fprintf( stderr, "FUTURE start\n" ); break; + case 0x4: if( vbi->verbose ) fprintf( stderr, "FUTURE continue\n" ); break; + + case 0x5: if( vbi->verbose ) fprintf( stderr, "CHANNEL start\n" ); break; + case 0x6: if( vbi->verbose ) fprintf( stderr, "CHANNEL continue\n" ); break; + + case 0x7: if( vbi->verbose ) fprintf( stderr, "MISC start\n" ); break; + case 0x8: if( vbi->verbose ) fprintf( stderr, "MISC continue\n" ); break; + + case 0x9: if( vbi->verbose ) fprintf( stderr, "PUB start\n" ); break; + case 0xa: if( vbi->verbose ) fprintf( stderr, "PUB continue\n" ); break; + + case 0xb: if( vbi->verbose ) fprintf( stderr, "RES start\n" ); break; + case 0xc: if( vbi->verbose ) fprintf( stderr, "RES continue\n" ); break; + + case 0xd: if( vbi->verbose ) fprintf( stderr, "UNDEF start\n" ); break; + case 0xe: if( vbi->verbose ) fprintf( stderr, "UNDEF continue\n" ); break; + } + for( i = 0; i < length; i++ ) { + if( vbi->verbose ) fprintf( stderr, "0x%02x ", packet[ i ] ); + } + if( vbi->verbose ) fprintf( stderr, "\n" ); + } +} + +static int xds_decode( vbidata_t *vbi, int b1, int b2 ) +{ + if( !vbi ) return 0; + if( vbi->xds_cursor > 2046 ) { + vbi->xds_cursor = 0; + } + + if( !vbi->xds_cursor && b1 > 0xf ) { + return 0; + } + + + if( b1 < 0xf && (b1 & 0x2) ) { + /* ignore the continue and thus 'support' continuation of + a single packet */ + return 1; + } else if( b1 < 0xf ) { + /* kill old packet cause we got a new one */ + vbi->xds_cursor = 0; + } + + vbi->xds_packet[ vbi->xds_cursor ] = b1; + vbi->xds_packet[ vbi->xds_cursor + 1 ] = b2; + vbi->xds_cursor += 2; + + if( b1 == 0xf ) { + parse_xds_packet( vbi, vbi->xds_packet, vbi->xds_cursor ); + vbi->xds_cursor = 0; + } + + return 1; +} + +#define NOMODE 0 + +#define CC1 1 +#define CC2 2 +#define T1 3 +#define T2 4 + +#define CC3 1 +#define CC4 2 +#define T3 3 +#define T4 4 + +const unsigned int colours[] = { + 0xFFFFFFFFU, /* white */ + 0xFF00FF00U, /* green */ + 0xFF0000FFU, /* blue */ + 0xFF00C7C7U, /* cyan */ + 0xFFFF0000U, /* red */ + 0xFFFFFF00U, /* yellow */ + 0xFFC700C7U /* magenta */ +}; + +const int rows[] = { + 11, + 0, /* unused */ + 1, + 2, + 3, + 4, + 12, + 13, + 14, + 15, + 5, + 6, + 7, + 8, + 9, + 10 +}; + +#define ROLL_2 6 +#define ROLL_3 7 +#define ROLL_4 8 +#define POP_UP 9 +#define PAINT_ON 10 + + +static int Process16b( vbidata_t *vbi, int bottom, int w1 ) +{ + int b1, b2; + + b1 = w1 & 0x7f; + b2 = (w1 >> 8) & 0x7f; + + if( !b1 && !b2 ) { + return 0; + } + + if( vbi->enabled && + b1 >= 0x10 && b1 <= 0x1F && b2 >= 0x20 && b2 <= 0x7F ) { + int code; + if( (b2 & 64) ) { + /* Preamble Code */ + /* This sets up colors and indenting */ + + if( !bottom && vbi->lastcode == ( (b1 << 8) | b2 ) ) { + vbi->lastcount = (vbi->lastcount + 1) % 2; + return 1; + } + + vbi->current_chan = (b1 & 8) >> 3; + if( !bottom == vbi->wanttop ) { + if( vbi->chan != vbi->current_chan ) + return 0; + } else return 0; + + vbi->current_ital = (b2 & 1); + if( !(b2 & 16) ) { + vbi->current_colour = colours[ (b2 & 30) >> 1 ]; + vbi->current_indent = 0; + } else { + vbi->current_colour = 0xFFFFFFFFU; /* white */ + vbi->current_indent = 4*( (b2 & 14) >> 1 ); + } + vbi->current_row = rows[ ((b1 & 7) << 1) | ((b2 & 32) >> 5) ]; + vbi->current_ul = b2 & 1; + + if( vbi->verbose ) fprintf( stderr, "field: %d chan %d, ital %d, ul %d, colour 0x%x, " + "indent %d, row %d\n", bottom, vbi->current_chan, + vbi->current_ital, vbi->current_ul, vbi->current_colour, + vbi->current_indent, vbi->current_row ); + + if( !bottom == vbi->wanttop && + vbi->current_chan == vbi->chan && + vbi->current_istext == vbi->wanttext ) { + + vbi->indent = vbi->current_indent; + vbi->ital = vbi->current_ital; + vbi->colour = vbi->current_colour; + vbi->row = vbi->current_row; + vbi->current_istext = 0; + + vbiscreen_new_caption( vbi->vs, vbi->indent, vbi->ital, + vbi->colour, vbi->row ); + + } + + vbi->lastcode = ( b1 << 8) | b2; + vbi->lastcount = 0; + return 1; + } + + if( (b1 & 8) == 1 ) { + /* Midrow code */ + if( !vbi->initialised ) return 0; + + if( !bottom && vbi->lastcode == ( (b1 << 8) | b2 ) ) { + vbi->lastcount = (vbi->lastcount + 1) % 2; + return 1; + } + + if( vbi->verbose ) fprintf( stderr, "Midrow TODO: Add me.\n" ); + + vbi->lastcode = ( b1 << 8) | b2; + return 1; + } + + if( (b1 & 2) && !(b2 & 64) ) { + if( !vbi->initialised ) return 0; + + if( !bottom && vbi->lastcode == ( (b1 << 8) | b2 ) ) { + vbi->lastcount = (vbi->lastcount + 1) % 2; + return 1; + } + + if( vbi->verbose ) fprintf( stderr, "Tab Offset: %d columns\n", b2 & 3 ); + if( vbi->wanttext && vbi->current_istext && + vbi->current_chan == vbi->chan && !bottom == vbi->wanttop ) { + vbiscreen_tab( vbi->vs, b2 & 3 ); + } + vbi->lastcode = ( b1 << 8) | b2; + return 1; + } + + switch( (code = b2 & 15) ) { + case 0: /* POP-UP */ + case 5: /* ROLL UP 2 */ + case 6: /* ROLL UP 3 */ + case 7: /* ROLL UP 4 */ + case 9: /* PAINT-ON */ + case 10:/* TEXT */ + case 11:/* TEXT */ + vbi->initialised = 1; + if( !bottom && vbi->lastcode == ( (b1 << 8) | b2 ) ) { + /* This is the repeated Control Code */ + vbi->lastcount = (vbi->lastcount + 1) % 2; + return 1; + } + switch( code ) { + case 0: /* POP-UP */ + if( !vbi->wanttext && vbi->current_chan == vbi->chan && + !bottom == vbi->wanttop ) { + if( vbi->verbose ) + fprintf( stderr, "Pop-Up\n"); + vbi->indent = vbi->current_indent; + vbi->ital = vbi->current_ital; + vbi->colour = vbi->current_colour; + vbi->row = vbi->current_row; + vbi->current_istext = 0; + vbiscreen_set_mode( vbi->vs, 1, POP_UP ); + } + break; + case 5: /* ROLL UP 2 */ + if( !vbi->wanttext && vbi->current_chan == vbi->chan && + !bottom == vbi->wanttop ) { + if( vbi->verbose ) + fprintf( stderr, "Roll-Up 2 (RU2)\n"); + vbi->indent = vbi->current_indent; + vbi->ital = vbi->current_ital; + vbi->colour = vbi->current_colour; + vbi->row = vbi->current_row; + vbi->current_istext = 0; + vbiscreen_set_mode( vbi->vs, 1, ROLL_2 ); + } + break; + case 6: /* ROLL UP 3 */ + if( !vbi->wanttext && vbi->current_chan == vbi->chan && + !bottom == vbi->wanttop ) { + if( vbi->verbose ) + fprintf( stderr, "Roll-Up 3 (RU3)\n"); + vbi->indent = vbi->current_indent; + vbi->ital = vbi->current_ital; + vbi->colour = vbi->current_colour; + vbi->row = vbi->current_row; + vbi->current_istext = 0; + vbiscreen_set_mode( vbi->vs, 1, ROLL_3 ); + } + break; + case 7: /* ROLL UP 4 */ + if( !vbi->wanttext && vbi->current_chan == vbi->chan && + !bottom == vbi->wanttop ) { + if( vbi->verbose ) + fprintf( stderr, "Roll-Up 4 (RU4)\n"); + vbi->indent = vbi->current_indent; + vbi->ital = vbi->current_ital; + vbi->colour = vbi->current_colour; + vbi->row = vbi->current_row; + vbi->current_istext = 0; + vbiscreen_set_mode( vbi->vs, 1, ROLL_4 ); + } + break; + case 9: /* PAINT-ON */ + if( !vbi->wanttext && vbi->current_chan == vbi->chan && + !bottom == vbi->wanttop ) { + if( vbi->verbose ) + fprintf( stderr, "Paint-On\n"); + vbi->indent = vbi->current_indent; + vbi->ital = vbi->current_ital; + vbi->colour = vbi->current_colour; + vbi->row = vbi->current_row; + vbi->current_istext = 0; + vbiscreen_set_mode( vbi->vs, 1, PAINT_ON ); + } + break; + case 10:/* TEXT */ + if( vbi->wanttext && vbi->current_chan == vbi->chan && + !bottom == vbi->wanttop ) { + if( vbi->verbose ) + fprintf( stderr, "Text Restart\n"); + vbi->indent = vbi->current_indent; + vbi->ital = vbi->current_ital; + vbi->colour = vbi->current_colour; + vbi->row = vbi->current_row; + vbi->current_istext = 1; + vbiscreen_set_mode( vbi->vs, 0, 0 ); + } + break; + case 11:/* TEXT */ + if( vbi->wanttext && vbi->current_chan == vbi->chan && + !bottom == vbi->wanttop ) { + if( vbi->verbose ) + fprintf( stderr, "Resume Text Display\n"); + vbi->indent = vbi->current_indent; + vbi->ital = vbi->current_ital; + vbi->colour = vbi->current_colour; + vbi->row = vbi->current_row; + vbi->current_istext = 1; + vbiscreen_set_mode( vbi->vs, 0, 0 ); + } + break; + default: /* impossible */ + break; + } + break; + case 1: + if( !vbi->initialised ) return 0; + if( !bottom && vbi->lastcode == ( (b1 << 8) | b2 ) ) { + vbi->lastcount = (vbi->lastcount + 1) % 2; + } + if( !bottom == vbi->wanttop && vbi->current_chan == vbi->chan && + vbi->current_istext == vbi->wanttext ) { + if( vbi->verbose ) + fprintf( stderr, "Backspace\n"); + vbiscreen_backspace( vbi->vs ); + } + break; + case 2: + case 3: + if( !vbi->initialised ) return 0; + fprintf( stderr, "Reserved\n"); + break; + case 4: + if( !vbi->initialised ) return 0; + if( !bottom && vbi->lastcode == ( (b1 << 8) | b2 ) ) { + vbi->lastcount = (vbi->lastcount + 1) % 2; + } + if( !bottom == vbi->wanttop && vbi->current_chan == vbi->chan && + vbi->current_istext == vbi->wanttext ) { + if( vbi->verbose ) + fprintf( stderr, "Delete to End of Row\n"); + vbiscreen_delete_to_end( vbi->vs ); + } + break; + case 8: + if( !vbi->initialised ) return 0; + if( vbi->verbose ) + fprintf( stderr, "Flash On\n"); + break; + case 12: + case 13: + case 14: + case 15: + if( !vbi->initialised ) return 0; + if( !bottom && vbi->lastcode == ( (b1 << 8) | b2 ) ) { + vbi->lastcount = (vbi->lastcount + 1) % 2; + return 1; + } + + switch( code ) { + case 12: + /* Show buffer 1, Fill buffer 2 */ + if( !bottom == vbi->wanttop && + vbi->current_chan == vbi->chan && + vbi->current_istext == vbi->wanttext ) { + if( vbi->verbose ) + fprintf( stderr, "Erase Displayed Memory\n"); + vbiscreen_erase_displayed( vbi->vs ); + } + break; + case 13: + if( !bottom == vbi->wanttop && + vbi->current_chan == vbi->chan && + vbi->current_istext == vbi->wanttext ) { + if( vbi->verbose ) + fprintf( stderr, "Carriage Return\n"); + vbiscreen_carriage_return( vbi->vs ); + } + break; + case 14: + if( !bottom == vbi->wanttop && + vbi->current_chan == vbi->chan && + vbi->current_istext == vbi->wanttext ) { + if( vbi->verbose ) + fprintf( stderr, "Erase Non-Displayed\n"); + vbiscreen_erase_non_displayed( vbi->vs ); + } + break; + case 15: + /* Show buffer 2, Fill Buffer 1 */ + if( !bottom == vbi->wanttop && + vbi->current_chan == vbi->chan && + vbi->current_istext == vbi->wanttext ) { + if( vbi->verbose ) + fprintf( stderr, "End Of Caption\n"); + vbiscreen_end_of_caption( vbi->vs ); + } + break; + default: /* impossible */ + return 0; + break; + } + break; + default: /* Impossible */ + return 0; + break; + } + + if( vbi->lastcode != ((b1 << 8) | b2) ) { + vbi->lastcount = 0; + } + + vbi->lastcode = (b1 << 8) | b2; + return 1; + } + + if( bottom && xds_decode( vbi, b1, b2 ) ) { + return 1; + } + + if( !vbi->enabled ) return 0; + + vbi->lastcode = 0; + vbi->lastcount = 0; + + if( !vbi->initialised ) + return 0; + + if( !bottom != vbi->wanttop || vbi->current_chan != vbi->chan || + vbi->current_istext != vbi->wanttext ) { + return 0; + } + + if( b1 == 0x11 || b1 == 0x19 || + b1 == 0x12 || b1 == 0x13 || + b1 == 0x1A || b1 == 0x1B ) { + switch( b1 ) { + case 0x1A: + case 0x12: + /* use extcode1 */ + if( b1 > 31 && b2 > 31 && b1 <= 0x3F && b2 <= 0x3F ) + if( vbi->verbose ) + fprintf( stderr, "char %d (%c), char %d (%c)\n", b1, + extcode1[b1-32] , b2, extcode1[b2-32] ); + + break; + case 0x13: + case 0x1B: + /* use extcode2 */ + if( b1 > 31 && b2 > 31 && b1 <= 0x3F && b2 <= 0x3F ) + if( vbi->verbose ) + fprintf( stderr, "char %d (%c), char %d (%c)\n", b1, + extcode2[b1-32] , b2, extcode2[b2-32] ); + + break; + case 0x11: + case 0x19: + /* use wcode */ + if( b1 > 31 && b2 > 31 && b1 <= 0x3F && b2 <= 0x3F ) + if( vbi->verbose ) + fprintf( stderr, "char %d (%c), char %d (%c)\n", b1, + wccode[b1-32] , b2, wccode[b2-32] ); + + break; + default: + break; + } + } else if( b1 ) { + /* use ccode */ + if( b1 < 32 ) b1 = 32; + if( b2 < 32 ) b2 = 32; + if( vbi->verbose ) + fprintf( stderr, "vbidata: data: %c %c\n", ccode[b1-32], + ccode[b2-32] ); + vbiscreen_print( vbi->vs, ccode[b1-32], ccode[b2-32] ); + } + + + return 1; +} /* Process16b */ + +int ProcessLine( vbidata_t *vbi, unsigned char *s, int bottom ) +{ + int w1; + /*char *outbuf = NULL;*/ + + if( !vbi ) return 0; + + w1 = ccdecode(s); + + return Process16b(vbi, bottom, w1); +} /* ProcessLine */ + + + +vbidata_t *vbidata_new_file( const char *filename, vbiscreen_t *vs, + /*tvtime_osd_t* osd,*/ int verbose ) +{ + vbidata_t *vbi = (vbidata_t *) malloc( sizeof( vbidata_t ) ); + if( !vbi ) { + return 0; + } + + vbi->fd = open( filename, O_RDONLY ); + if( vbi->fd < 0 ) { + fprintf( stderr, "vbidata: Can't open %s: %s\n", + filename, strerror( errno ) ); + free( vbi ); + return 0; + } + + vbi->vs = vs; + /*vbi->osd = osd;*/ + vbi->verbose = verbose; + + vbidata_reset( vbi ); + + return vbi; +} + +vbidata_t *vbidata_new_line( vbiscreen_t *vs, int verbose ) +{ + vbidata_t *vbi = (vbidata_t *) malloc( sizeof( vbidata_t ) ); + if( !vbi ) { + return 0; + } + + vbi->vs = vs; + /*vbi->osd = osd;*/ + vbi->verbose = verbose; + + vbidata_reset( vbi ); + + return vbi; +} + +void vbidata_delete( vbidata_t *vbi ) +{ + if( !vbi ) return; + if( vbi->fd != 0 ) { + close( vbi->fd ); + } + free( vbi ); +} + +void vbidata_reset( vbidata_t *vbi ) +{ + if( !vbi ) return; + + vbi->wanttop = 0; + vbi->wanttext = 0; + vbi->colour = 0xFFFFFFFFU; + vbi->row = 0; + + vbi->ital = 0; + vbi->indent = 0; + vbi->ul=0; + + vbi->chan=0; + + vbi->initialised = 0; + vbi->enabled = 0; + + memset(vbi->program_desc, 0, 8*sizeof(char*) ); + vbi->program_name = NULL; + vbi->network_name = NULL; + vbi->call_letters = NULL; + vbi->rating = NULL; + vbi->program_type = NULL; + + vbi->start_day = 0; + vbi->start_month = 0; + vbi->start_min = 0; + vbi->start_hour = 0; + vbi->length_hour = 0; + vbi->length_min = 0; + vbi->length_elapsed_hour = 0; + vbi->length_elapsed_min = 0; + vbi->length_elapsed_sec = 0; + + /* + tvtime_osd_set_network_call( vbi->osd, "" ); + tvtime_osd_set_network_name( vbi->osd, "" ); + tvtime_osd_set_show_name( vbi->osd, "" ); + tvtime_osd_set_show_rating( vbi->osd, "" ); + tvtime_osd_set_show_start( vbi->osd, "" ); + tvtime_osd_set_show_length( vbi->osd, "" ); + */ + + + + vbi->lastcode = 0; + vbi->lastcount = 0; + vbi->xds_packet[ 0 ] = 0; + vbi->xds_cursor = 0; + vbiscreen_reset( vbi->vs ); +} + +void vbidata_capture_mode( vbidata_t *vbi, int mode ) +{ + if( !vbi ) return; + switch( mode ) { + case CAPTURE_OFF: + vbi->enabled = 0; + break; + case CAPTURE_CC1: + vbi->wanttop = 1; + vbi->wanttext = 0; + vbi->chan = 0; + vbi->enabled = 1; + break; + case CAPTURE_CC2: + vbi->wanttop = 1; + vbi->wanttext = 0; + vbi->chan = 1; + vbi->enabled = 1; + break; + case CAPTURE_CC3: + vbi->wanttop = 0; + vbi->wanttext = 0; + vbi->chan = 0; + vbi->enabled = 1; + break; + case CAPTURE_CC4: + vbi->wanttop = 0; + vbi->wanttext = 0; + vbi->chan = 1; + vbi->enabled = 1; + break; + case CAPTURE_T1: + vbi->wanttop = 1; + vbi->wanttext = 1; + vbi->chan = 0; + vbi->enabled = 1; + break; + case CAPTURE_T2: + vbi->wanttop = 1; + vbi->wanttext = 1; + vbi->chan = 1; + vbi->enabled = 1; + break; + case CAPTURE_T3: + vbi->wanttop = 0; + vbi->wanttext = 1; + vbi->chan = 0; + vbi->enabled = 1; + break; + case CAPTURE_T4: + vbi->wanttop = 0; + vbi->wanttext = 1; + vbi->chan = 1; + vbi->enabled = 1; + break; + default: + vbi->enabled = 0; + break; + } +} + +void vbidata_process_frame( vbidata_t *vbi, int printdebug ) +{ + if( read( vbi->fd, vbi->buf, 65536 ) < 65536 ) { + fprintf( stderr, "error, can't read vbi data.\n" ); + return; + } + + ProcessLine( vbi, &vbi->buf[ DO_LINE*2048 ], 0 ); + ProcessLine( vbi, &vbi->buf[ (16+DO_LINE)*2048 ], 1 ); +} + +void vbidata_process_line( vbidata_t *vbi, unsigned char *s, int bottom) +{ + ProcessLine( vbi, s, bottom ); +} + +void vbidata_process_16b( vbidata_t *vbi, int bottom, int w) +{ + Process16b( vbi, bottom, w ); +} + |