mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-24 01:00:37 +00:00
61898506c8
Original commit message from CVS: initial checkin of work-in-progress vbidec plugin for closed caption support
1079 lines
35 KiB
C
1079 lines
35 KiB
C
/**
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* Copyright (c) 2002 Billy Biggs <vektor@dumbterm.net>.
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* Copyright (c) 2002 Doug Bell <drbell@users.sourceforge.net>
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*
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* CC code from Nathan Laredo's ccdecode, used under the GPL.
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* Lots of 'hey what does this mean?' code from
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* Billy Biggs and Doug Bell, like all the crap with
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* XDS and stuff. Some help from Zapping's vbi library by
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* Michael H. Schimek and others, released under the GPL.
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*
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* Modified and adapted to GStreamer by
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* David I. Lehn <dlehn@users.sourceforge.net>
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*
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* This program 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 (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <string.h>
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#include <fcntl.h>
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#include <ctype.h>
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#include <unistd.h>
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#include <errno.h>
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#include "vbidata.h"
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#include "vbiscreen.h"
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/*#include "tvtimeosd.h"*/
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#define DO_LINE 11
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static int pll = 0;
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struct vbidata_s
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{
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int fd;
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vbiscreen_t *vs;
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/*tvtime_osd_t *osd;*/
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char buf[ 65536 ];
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int wanttop;
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int wanttext;
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unsigned int colour;
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int row, ital;
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int indent, ul;
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int chan;
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unsigned int current_colour;
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int current_row, current_ital;
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int current_indent, current_ul;
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int current_chan;
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int current_istext;
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int initialised;
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int enabled;
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int lastcode;
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int lastcount;
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int verbose;
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/* XDS data */
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char xds_packet[ 2048 ];
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int xds_cursor;
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char *program_name;
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char *network_name;
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char *call_letters;
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const char *rating;
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const char *program_type;
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int start_day;
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int start_month;
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int start_min;
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int start_hour;
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int length_hour;
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int length_min;
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int length_elapsed_hour;
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int length_elapsed_min;
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int length_elapsed_sec;
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char *program_desc[8];
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};
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/* this is NOT exactly right */
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//static char *ccode = " !\"#$%&'()\0341+,-./0123456789:;<=>?@"
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static char *ccode = " !\"#$%&'()a+,-./0123456789:;<=>?@"
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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// "abcdefghijklmnopqrstuvwxyz"
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// "[\0351]\0355\0363\0372abcdefghijklmnopqr"
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"[e]iouabcdefghijklmnopqr"
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// "stuvwxyz\0347\0367\0245\0244\0240";
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"stuvwxyzcoNn ";
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static char *wccode = "\0256\0260\0275\0277T\0242\0243#\0340 "
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"\0350\0354\0362\0371";
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static char *extcode1 = "\0301\0311\0323\0332\0334\0374"
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"`\0241*'-\0251S*\"\"\0300\0302"
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"\0307\0310\0312\0313\0353\0316\0317\0357"
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"\0324\0331\0371\0333\0253\0273";
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static char *extcode2 = "\0303\0343\0315\0314\0354\0322\0362\0325"
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"{}\\^_|~\0304\0344\0326\0366\0337\0245\0244|"
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"\0305\0345\0330\0370++++";
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int parityok(int n)
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{ /* check parity for 2 bytes packed in n */
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int j, k;
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for (k = 0, j = 0; j < 7; j++)
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if (n & (1 << j))
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k++;
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if ((k & 1) && (n & 0x80))
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return 0;
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for (k = 0, j = 8; j < 15; j++)
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if (n & (1 << j))
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k++;
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if ((k & 1) && (n & 0x8000))
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return 0;
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return 1;
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}
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int decodebit(unsigned char *data, int threshold)
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{
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return ((data[0] + data[1] + data[2] + data[3] + data[4] + data[5] +
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data[6] + data[7] + data[8] + data[9] + data[10] + data[11] +
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data[12] + data[13] + data[14] + data[15] + data[16] + data[17] +
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data[18] + data[19] + data[20] + data[21] + data[22] + data[23] +
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data[24] + data[25] + data[26] + data[27] + data[28] + data[29] +
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data[30] + data[31])>>5 > threshold);
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}
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int ccdecode(unsigned char *vbiline)
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{
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int max = 0, maxval = 0, minval = 255, i = 0, clk = 0, tmp = 0;
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int sample, packedbits = 0;
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for (i=0; i<250; i++) {
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sample = vbiline[i];
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if (sample - maxval > 10)
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(maxval = sample, max = i);
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if (sample < minval)
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minval = sample;
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if (maxval - sample > 40)
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break;
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}
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sample = ((maxval + minval) >> 1);
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pll = max;
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/* found clock lead-in, double-check start */
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#ifndef PAL_DECODE
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i = max + 478;
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#else
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i = max + 538;
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#endif
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if (!decodebit(&vbiline[i], sample))
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return 0;
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#ifndef PAL_DECODE
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tmp = i + 57; /* tmp = data bit zero */
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#else
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tmp = i + 71;
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#endif
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for (i = 0; i < 16; i++) {
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#ifndef PAL_DECODE
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clk = tmp + i * 57;
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#else
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clk = tmp + i * 71;
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#endif
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if (decodebit(&vbiline[clk], sample)) {
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packedbits |= 1 << i;
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}
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}
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if (parityok(packedbits))
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return packedbits;
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return 0;
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} /* ccdecode */
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const char *movies[] = { "N/A", "G", "PG", "PG-13", "R",
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"NC-17", "X", "Not Rated" };
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const char *usa_tv[] = { "Not Rated", "TV-Y", "TV-Y7", "TV-G",
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"TV-PG", "TV-14", "TV-MA", "Not Rated" };
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const char *cane_tv[] = { "Exempt", "C", "C8+", "G", "PG",
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"14+", "18+", "Reserved" };
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const char *canf_tv[] = { "Exempt", "G", "8 ans +", "13 ans +",
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"16 ans +", "18 ans +", "Reserved",
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"Reserved" };
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const char *months[] = { 0, "Jan", "Feb", "Mar", "Apr", "May",
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"Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
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static const char *eia608_program_type[ 96 ] = {
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"education", "entertainment", "movie", "news", "religious", "sports",
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"other", "action", "advertisement", "animated", "anthology",
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"automobile", "awards", "baseball", "basketball", "bulletin", "business",
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"classical", "college", "combat", "comedy", "commentary", "concert",
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"consumer", "contemporary", "crime", "dance", "documentary", "drama",
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"elementary", "erotica", "exercise", "fantasy", "farm", "fashion",
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"fiction", "food", "football", "foreign", "fund raiser", "game/quiz",
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"garden", "golf", "government", "health", "high school", "history",
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"hobby", "hockey", "home", "horror", "information", "instruction",
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"international", "interview", "language", "legal", "live", "local",
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"math", "medical", "meeting", "military", "miniseries", "music", "mystery",
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"national", "nature", "police", "politics", "premiere", "prerecorded",
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"product", "professional", "public", "racing", "reading", "repair", "repeat",
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"review", "romance", "science", "series", "service", "shopping",
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"soap opera", "special", "suspense", "talk", "technical", "tennis",
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"travel", "variety", "video", "weather", "western"
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};
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static void parse_xds_packet( vbidata_t *vbi, char *packet, int length )
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{
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int sum = 0;
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int i;
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if( !vbi ) return;
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/* Check the checksum for validity of the packet. */
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for( i = 0; i < length - 1; i++ ) {
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sum += packet[ i ];
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}
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if( (((~sum) & 0x7f) + 1) != packet[ length - 1 ] ) {
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return;
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}
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/* Stick a null at the end, and cut off the last two characters. */
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packet[ length - 2 ] = '\0';
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length -= 2;
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if( packet[ 0 ] == 0x01 && packet[ 1 ] == 0x03 ) {
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if( vbi->program_name && !strcmp(vbi->program_name, packet + 2 ) ) {
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return;
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}
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if( vbi->verbose ) fprintf( stderr, "Current program name: '%s'\n", packet + 2 );
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if( vbi->program_name ) free( vbi->program_name );
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vbi->program_name = strdup(packet + 2);
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/*tvtime_osd_set_show_name( vbi->osd, vbi->program_name );*/
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} else if( packet[ 0 ] == 0x03 && packet[ 1 ] == 0x03 ) {
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if( vbi->verbose ) fprintf( stderr, "Future program name: '%s'\n", packet + 2 );
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} else if( packet[ 0 ] == 0x05 && packet[ 1 ] == 0x01 ) {
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if( vbi->network_name && !strcmp(vbi->network_name, packet + 2 ) ) {
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return;
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}
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if( vbi->verbose ) fprintf( stderr, "Network name: '%s'\n", packet + 2 );
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if( vbi->network_name ) free( vbi->network_name );
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vbi->network_name = strdup( packet + 2 );
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/*tvtime_osd_set_network_name( vbi->osd, vbi->network_name );*/
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} else if( packet[ 0 ] == 0x01 && packet[ 1 ] == 0x05 ) {
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int movie_rating = packet[ 2 ] & 7;
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int scheme = (packet[ 2 ] & 56) >> 3;
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int tv_rating = packet[ 3 ] & 7;
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int VSL = packet[ 3 ] & 56;
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const char * str;
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switch( VSL | scheme ) {
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case 3: /* Canadian English TV */
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str = cane_tv[ tv_rating ];
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break;
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case 7: /* Canadian French TV */
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str = canf_tv[ tv_rating ];
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break;
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case 19: /* Reserved */
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case 31:
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str = "";
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break;
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default:
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if( ((VSL | scheme) & 3) == 1 ) {
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/* USA TV */
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str = usa_tv[ tv_rating ];
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} else {
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/* MPAA Movie Rating */
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str = movies[ movie_rating ];
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}
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break;
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}
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if( vbi->rating && !strcmp(vbi->rating, str ) ) {
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return;
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}
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if( vbi->verbose ) fprintf( stderr, "Show rating: %s", str );
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if( ((VSL | scheme) & 3) == 1 || ((VSL | scheme) & 3) == 0 ) {
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/* show VSLD for the americans */
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if( (VSL | scheme) & 32 ) {
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if( vbi->verbose ) fprintf( stderr, " V" );
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}
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if( (VSL | scheme) & 16 ) {
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if( vbi->verbose ) fprintf( stderr, " S" );
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}
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if( (VSL | scheme) & 8 ) {
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if( vbi->verbose ) fprintf( stderr, " L" );
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}
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if( (VSL | scheme) & 4 ) {
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if( vbi->verbose ) fprintf( stderr, " D" );
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}
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}
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if( vbi->verbose ) fprintf( stderr, "\n" );
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vbi->rating = str;
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/*tvtime_osd_set_show_rating( vbi->osd, vbi->rating );*/
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} else if( packet[ 0 ] == 0x05 && packet[ 1 ] == 0x02 ) {
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if( vbi->call_letters && !strcmp(vbi->call_letters, packet + 2 ) ) {
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return;
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}
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if( vbi->verbose ) fprintf( stderr, "Network call letters: '%s'\n", packet + 2 );
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if( vbi->call_letters ) free( vbi->call_letters );
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vbi->call_letters = strdup( packet + 2 );
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/*tvtime_osd_set_network_call( vbi->osd, vbi->call_letters );*/
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} else if( packet[ 0 ] == 0x01 && packet[ 1 ] == 0x01 ) {
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int month = packet[5];// & 15;
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int day = packet[4];// & 31;
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int hour = packet[3];// & 31;
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int min = packet[2];// & 63;
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char str[33];
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if( vbi->verbose ) fprintf( stderr, "Program Start: %02d %s, %02d:%02d\n",
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day & 31, months[month & 15], hour & 31, min & 63 );
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// packet[ 3 ], packet[ 4 ], packet[ 5 ], packet[ 6 ] );
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//packet[ 5 ] & 31, packet[ 6 ], packet[ 4 ] & 31, packet[ 3 ] & 63 );
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vbi->start_month = month & 15;
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vbi->start_day = day & 31;
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vbi->start_hour = hour & 31;
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vbi->start_min = hour & 63;
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snprintf( str, 32, "%02d %s, %02d:%02d",
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day & 31, months[month & 15], hour & 31, min & 63 );
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/*tvtime_osd_set_show_start( vbi->osd, str );*/
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} else if( packet[ 0 ] == 0x01 && packet[ 1 ] == 0x04 ) {
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if( vbi->verbose ) fprintf( stderr, "Program type: " );
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for( i = 0; i < length - 2; i++ ) {
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int cur = packet[ 2 + i ] - 0x20;
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if( cur >= 0 && cur < 96 ) {
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if( vbi->verbose ) fprintf( stderr, "%s%s", i ? ", " : "", eia608_program_type[ cur ] );
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/* this will cause us to keep only the last type we check */
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vbi->program_type = eia608_program_type[ cur ];
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}
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}
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if( vbi->verbose ) fprintf( stderr, "\n" );
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} else if( packet[ 0 ] < 0x03 && packet[ 1 ] >= 0x10 && packet[ 1 ] <= 0x17 ) {
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if( vbi->program_desc[ packet[1] & 0xf ] &&
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!strcmp(vbi->program_desc[ packet[1] & 0xf ], packet + 2 ) ) {
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return;
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}
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if( vbi->verbose ) fprintf( stderr, "Program Description: Line %d", packet[1] & 0xf );
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if( vbi->verbose ) fprintf( stderr, "%s\n", packet + 2 );
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if( vbi->program_desc[ packet[1] & 0xf ] )
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free( vbi->program_desc[ packet[1] & 0xf ] );
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vbi->program_desc[ packet[1] & 0xf ] = strdup( packet + 2 );
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} else if( packet[ 0 ] == 0x01 && packet[ 1 ] == 0x02 ) {
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char str[ 33 ];
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str[0] = 0;
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if( vbi->verbose ) fprintf( stderr, "Program Length: %02d:%02d",
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packet[ 3 ] & 63, packet[ 2 ] & 63 );
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vbi->length_hour = packet[ 3 ] & 63;
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vbi->length_min = packet[ 2 ] & 63;
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snprintf( str, 32, "%02d:%02d",
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packet[ 3 ] & 63, packet[ 2 ] & 63 );
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if( length > 4 ) {
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if( vbi->verbose ) fprintf( stderr, " Elapsed: %02d:%02d", packet[ 5 ] & 63,
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packet[ 4 ] & 63 );
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vbi->length_elapsed_hour = packet[ 5 ] & 63;
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vbi->length_elapsed_min = packet[ 4 ] & 63;
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snprintf( str, 32, "%02d:%02d/%02d:%02d",
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packet[ 5 ] & 63, packet[ 4 ] & 63,
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packet[ 3 ] & 63, packet[ 2 ] & 63 );
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} else {
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vbi->length_elapsed_hour = 0;
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vbi->length_elapsed_min = 0;
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}
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if( length > 6 ) {
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if( vbi->verbose ) fprintf( stderr, ".%02d", packet[ 6 ] & 63 );
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vbi->length_elapsed_hour = packet[ 6 ] & 63;
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snprintf( str, 32, "%02d:%02d.%02d/%02d:%02d",
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packet[ 5 ] & 63, packet[ 4 ] & 63, packet[ 6 ] & 63,
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packet[ 3 ] & 63, packet[ 2 ] & 63 );
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} else {
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vbi->length_elapsed_hour = 0;
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}
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/*tvtime_osd_set_show_length( vbi->osd, str );*/
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if( vbi->verbose ) fprintf( stderr, "\n" );
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} else if( packet[ 0 ] == 0x05 && packet[ 1 ] == 0x04 ) {
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if( vbi->verbose ) fprintf( stderr, "Transmission Signal Identifier (TSID): 0x%04x\n",
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packet[ 2 ] << 24 | packet[ 3 ] << 16 | packet[ 4 ] << 8 | packet[ 5 ] );
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} else {
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/* unknown */
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if( vbi->verbose ) fprintf( stderr, "Unknown XDS packet, class " );
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switch( packet[ 0 ] ) {
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case 0x1: if( vbi->verbose ) fprintf( stderr, "CURRENT start\n" ); break;
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case 0x2: if( vbi->verbose ) fprintf( stderr, "CURRENT continue\n" ); break;
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case 0x3: if( vbi->verbose ) fprintf( stderr, "FUTURE start\n" ); break;
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case 0x4: if( vbi->verbose ) fprintf( stderr, "FUTURE continue\n" ); break;
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case 0x5: if( vbi->verbose ) fprintf( stderr, "CHANNEL start\n" ); break;
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case 0x6: if( vbi->verbose ) fprintf( stderr, "CHANNEL continue\n" ); break;
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case 0x7: if( vbi->verbose ) fprintf( stderr, "MISC start\n" ); break;
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case 0x8: if( vbi->verbose ) fprintf( stderr, "MISC continue\n" ); break;
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case 0x9: if( vbi->verbose ) fprintf( stderr, "PUB start\n" ); break;
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case 0xa: if( vbi->verbose ) fprintf( stderr, "PUB continue\n" ); break;
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case 0xb: if( vbi->verbose ) fprintf( stderr, "RES start\n" ); break;
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case 0xc: if( vbi->verbose ) fprintf( stderr, "RES continue\n" ); break;
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case 0xd: if( vbi->verbose ) fprintf( stderr, "UNDEF start\n" ); break;
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case 0xe: if( vbi->verbose ) fprintf( stderr, "UNDEF continue\n" ); break;
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}
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for( i = 0; i < length; i++ ) {
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if( vbi->verbose ) fprintf( stderr, "0x%02x ", packet[ i ] );
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}
|
|
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 );
|
|
}
|
|
|