teletext parser: fix national character translation
- the national number must be bit-reversed - add support for more character variations
This commit is contained in:
Jaroslav Kysela
parent
7cb8fc2f23
commit
c469807285
1 changed files with 538 additions and 78 deletions
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@ -1,6 +1,7 @@
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/*
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* Teletext parsing functions
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* Copyright (C) 2007 Andreas Öman
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* Copyright (C) 2014 Jaroslav Kysela
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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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@ -44,7 +45,8 @@
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typedef struct tt_mag {
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int ttm_curpage;
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int64_t ttm_current_pts;
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uint8_t ttm_lang;
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uint8_t ttm_charset[2];
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uint8_t ttm_national;
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uint8_t ttm_page[23*40 + 1];
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} tt_mag_t;
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@ -103,86 +105,495 @@ static const uint8_t hamtable[] = {
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0xff, 0x0e, 0x0f, 0xff, 0x0e, 0x8e, 0xff, 0x0e,
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};
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static const uint8_t laG0_nat_opts_lookup[16][8] = {
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{1, 4, 11, 5, 3, 8, 0, 1},
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{7, 4, 11, 5, 3, 1, 0, 1},
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{1, 4, 11, 5, 3, 8, 12, 1},
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{1, 1, 1, 1, 1, 10, 1, 9},
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{1, 4, 2, 6, 1, 1, 0, 1},
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{1, 1, 1, 1, 1, 1, 1, 1}, // 5 - reserved
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{1, 1, 1, 1, 1, 1, 12, 1},
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{1, 1, 1, 1, 1, 1, 1, 1}, // 7 - reserved
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{1, 1, 1, 1, 3, 1, 1, 1},
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{1, 1, 1, 1, 1, 1, 1, 1}, // 9 - reserved
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{1, 1, 1, 1, 1, 1, 1, 1},
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{1, 1, 1, 1, 1, 1, 1, 1}, // 11 - reserved
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{1, 1, 1, 1, 1, 1, 1, 1}, // 12 - reserved
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{1, 1, 1, 1, 1, 1, 1, 1}, // 13 - reserved
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{1, 1, 1, 1, 1, 1, 1, 1}, // 14 - reserved
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{1, 1, 1, 1, 1, 1, 1, 1} // 15 - reserved
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};
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static const uint8_t laG0_nat_replace_map[128] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 5, 6, 7, 8,
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9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 11, 12, 13, 0
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};
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/*
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* Teletext character set according to ETS 300 706, Section 15.
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*/
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#define CHARSET_NONE 0
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#define CHARSET_LATIN_G0 1
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#define CHARSET_LATIN_G2 2
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#define CHARSET_CYRILLIC_1_G0 3
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#define CHARSET_CYRILLIC_2_G0 4
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#define CHARSET_CYRILLIC_3_G0 5
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#define CHARSET_CYRILLIC_G2 6
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#define CHARSET_GREEK_G0 7
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#define CHARSET_GREEK_G2 8
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#define CHARSET_ARABIC_G0 9
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#define CHARSET_ARABIC_G2 10
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#define CHARSET_HEBREW_G0 11
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#define CHARSET_BLOCK_MOSAIC_G1 12
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#define CHARSET_SMOOTH_MOSAIC_G3 13
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#define CHARSET_LAST CHARSET_SMOOTH_MOSAIC_G3
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/*
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* Latin National Option Sub-Sets
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* ETSI EN 300 706 Table 36
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* Teletext Latin G0 national option subsets according to
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* ETS 300 706, Section 15.2; Section 15.6.2 Table 36.
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*/
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static const uint16_t laG0_nat_opts16[13][14] = {
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{0, '#', 'u', 'c', 't', 'z', 0xc3bd, 0xc3ad, 'r', 0xc3a9, 0xc3a1, 'e', 0xc3ba, 's' }, // 0 - Czech/Slovak
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{0, 0xc2a3, '$', '@', '-', 0xc2bd, '-', '|', '#', '-', 0xc2bc, '#', 0xc2be, 0xc3b7}, // 1 - English
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{0, '#', 0xc3b5, 'S', 0xc384, 0xc396, 'Z', 0xc39c, 0xc395, 's', 0xc3a4, 0xc3b6, 'z', 0xc3bc}, // 2 - Estonian
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{0, 0xc3a9, 0xc3af, 0xc3a0, 0xc3ab, 0xc3aa, 0xc3b9, 0xc3ae, '#', 0xc3a8, 0xc3a2, 0xc3b4, 0xc3bb, 0xc3a7}, // 3 - French
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{0, '#', '$', 0xc2a7, 0xc384, 0xc396, 0xc39c, '^', '_', 0xc2ba, 0xc3a4, 0xc3b6, 0xc3bc, 0xc39f}, // 4 - German
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{0, 0xc2a3, '$', 0xc3a9, 0xc2ba, 0xc3a7, '-', '|', '#', 0xc3b9, 0xc3a0, 0xc3b2, 0xc3a8, 0xc3ac}, // 5 - Italian
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{0, '#', '$', 'S', 'e', 'e', 'Z', 'c', 'u', 's', 'a', 'u', 'z', 'i' }, // 6 - Lettish/Lithuanian
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{0, '#', 'n', 'a', 'Z', 'S', 'L', 'c', 0xc3b3, 'e', 'z', 's', 'l', 'z' }, // 7 - Polish
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{0, 0xc3a7, '$', 'i', 0xc3a1, 0xc3a9, 0xc3ad, 0xc3b3, 0xc3ba, 0xc2bf, 0xc3bc, 0xc3b1, 0xc3a8, 0xc3a0}, // 8 - Portuguese/Spanish
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{0, '#', 0xc2a4, 'T', 0xc382, 'S', 'A', 0xc38e, 'i', 't', 0xc3a2, 's', 'a', 0xc3ae}, // 9 - Rumanian
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{0, '#', 0xc38b, 'C', 'C', 'Z', 'D', 'S', 0xc3ab, 'c', 'c', 'z', 'd', 's' }, // 10 - Serbian/Croation/Slovenian
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{0, '#', 0xc2a4, 0xc389, 0xc384, 0xc396, 0xc385, 0xc39c, '_', 0xc3a9, 0xc3a4, 0xc3b6, 0xc3a5, 0xc3bc}, // 11 - Swedish/Finnish/Hungarian
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{0, 'T', 'g', 'I', 'S', 0xc396, 0xc387, 0xc39c, 'G', 'i', 's', 0xc3b6, 0xc3a7, 0xc3bc} // 12 - Turkish
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#define SUBSET_NONE 0
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#define SUBSET_CZECH_SLOVAK 1 /* Cesky / Slovencina */
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#define SUBSET_ENGLISH 2 /* English */
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#define SUBSET_ESTONIAN 3 /* Eesti */
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#define SUBSET_FRENCH 4 /* Français */
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#define SUBSET_GERMAN 5 /* German / Deutch */
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#define SUBSET_ITALIAN 6 /* Italiano */
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#define SUBSET_LETT_LITH 7 /* Lettish / Lietuviskai */
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#define SUBSET_POLISH 8 /* Polski */
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#define SUBSET_PORTUG_SPANISH 9 /* Português / Español */
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#define SUBSET_RUMANIAN 10 /* Româna */
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#define SUBSET_SERB_CRO_SLO 11 /* Srbski / Hrvatski / Slovenscina */
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#define SUBSET_SWE_FIN_HUN 12 /* Svenska / Suomi / Magyar */
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#define SUBSET_TURKISH 13 /* Türkçe */
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#define SUBSET_LAST SUBSET_TURKISH
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#define SUBSET_CHARMAP_COUNT 13
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/*
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* Teletext font descriptors
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*
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* ETS 300 706 Table 32, 33, 34
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*
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* Note the fourth byte is unused (it's just a pad)
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*/
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uint8_t char_table[88][4] = {
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/* Western and Central Europe */
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/* 00 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_ENGLISH },
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/* 01 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_GERMAN },
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/* 02 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_SWE_FIN_HUN },
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/* 03 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_ITALIAN },
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/* 04 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_FRENCH },
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/* 05 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_PORTUG_SPANISH },
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/* 06 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_CZECH_SLOVAK },
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/* 07 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_NONE },
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/* Eastern Europe */
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/* 08 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_POLISH },
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/* 09 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_GERMAN },
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/* 10 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_SWE_FIN_HUN },
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/* 11 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_ITALIAN },
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/* 12 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_FRENCH },
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/* 13 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_NONE },
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/* 14 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_CZECH_SLOVAK },
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/* 15 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_NONE },
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/* Western Europe and Turkey */
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/* 16 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_ENGLISH },
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/* 17 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_GERMAN },
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/* 18 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_SWE_FIN_HUN },
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/* 19 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_ITALIAN },
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/* 20 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_FRENCH },
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/* 21 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_PORTUG_SPANISH },
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/* 22 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_TURKISH },
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/* 23 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_NONE },
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/* Central and Southeast Europe */
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/* 24 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_NONE },
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/* 25 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_NONE },
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/* 26 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_NONE },
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/* 27 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_NONE },
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/* 28 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_NONE },
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/* 29 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_SERB_CRO_SLO },
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/* 30 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_NONE },
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/* 31 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_RUMANIAN },
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/* Cyrillic */
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/* 32 */ { CHARSET_CYRILLIC_1_G0, CHARSET_CYRILLIC_G2, SUBSET_NONE },
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/* 33 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_GERMAN },
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/* 34 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_ESTONIAN },
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/* 35 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_LETT_LITH },
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/* 36 */ { CHARSET_CYRILLIC_2_G0, CHARSET_CYRILLIC_G2, SUBSET_NONE },
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/* 37 */ { CHARSET_CYRILLIC_3_G0, CHARSET_CYRILLIC_G2, SUBSET_NONE },
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/* 38 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_CZECH_SLOVAK },
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/* 39 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* Unused */
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/* 40 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 41 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 42 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 43 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 44 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 45 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 46 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 47 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* Misc */
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/* 48 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 49 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 50 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 51 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 52 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 53 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 54 */ { CHARSET_LATIN_G0, CHARSET_LATIN_G2, SUBSET_TURKISH },
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/* 55 */ { CHARSET_GREEK_G0, CHARSET_GREEK_G2, SUBSET_NONE },
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/* Unused */
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/* 56 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 57 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 58 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 59 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 60 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 61 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 62 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 63 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* Arabic */
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/* 64 */ { CHARSET_LATIN_G0, CHARSET_ARABIC_G2, SUBSET_ENGLISH },
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/* 65 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 66 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 67 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 68 */ { CHARSET_LATIN_G0, CHARSET_ARABIC_G2, SUBSET_FRENCH },
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/* 69 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 70 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 71 */ { CHARSET_ARABIC_G0, CHARSET_ARABIC_G2, SUBSET_NONE },
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/* Unused */
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/* 72 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 73 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 74 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 75 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 76 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 77 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 78 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 79 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* Misc */
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/* 80 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 81 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 82 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 83 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 84 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 85 */ { CHARSET_HEBREW_G0, CHARSET_ARABIC_G2, SUBSET_NONE },
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/* 86 */ { CHARSET_NONE, CHARSET_NONE, SUBSET_NONE },
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/* 87 */ { CHARSET_ARABIC_G0, CHARSET_ARABIC_G2, SUBSET_NONE },
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};
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/*
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* Map Latin G0 teletext characters into a ISO-8859-1 approximation.
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* Trying to use similar looking or similar meaning characters.
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* Gtriplet - 4 bits = triplet-1 bits 14-11 (14-8) of a X/28 or M/29 packet, if unknown - use 0
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* natopts - 3 bits = national_options field of a Y/0 packet (or triplet-1 bits 10-8 as above?)
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* inchar - 7 bits = characted to remap
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* Also strips parity
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* Teletext character set
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*
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* (Similar to ISO 6937 -
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* ftp://dkuug.dk/i18n/charmaps/ISO_6937)
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*/
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/*
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* ETS 300 706 Table 36: Latin National Option Sub-sets
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*
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* Latin G0 character code to Unicode mapping per national subset,
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* unmodified codes (SUBSET_NONE) in row zero.
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*
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* [13][0] Turkish currency symbol not in Unicode, use '$'.
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*/
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static const uint16_t
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teletext_subset[SUBSET_LAST+1][SUBSET_CHARMAP_COUNT] = {
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{ 0x0023, 0x0024, 0x0040, 0x005B, 0x005C, 0x005D, 0x005E, 0x005F,
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0x0060, 0x007B, 0x007C, 0x007D, 0x007E },
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{ 0x0023, 0x016F, 0x010D, 0x0165, 0x017E, 0x00FD, 0x00ED, 0x0159,
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0x00E9, 0x00E1, 0x011B, 0x00FA, 0x0161 },
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{ 0x00A3, 0x0024, 0x0040, 0x2190, 0x00BD, 0x2192, 0x2191, 0x0023,
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0x2014, 0x00BC, 0x2016, 0x00BE, 0x00F7 },
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{ 0x0023, 0x00F5, 0x0160, 0x00C4, 0x00D6, 0x017D, 0x00DC, 0x00D5,
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0x0161, 0x00E4, 0x00F6, 0x017E, 0x00FC },
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{ 0x00E9, 0x00EF, 0x00E0, 0x00EB, 0x00EA, 0x00F9, 0x00EE, 0x0023,
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0x00E8, 0x00E2, 0x00F4, 0x00FB, 0x00E7 },
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{ 0x0023, 0x0024, 0x00A7, 0x00C4, 0x00D6, 0x00DC, 0x005E, 0x005F,
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0x00B0, 0x00E4, 0x00F6, 0x00FC, 0x00DF },
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{ 0x00A3, 0x0024, 0x00E9, 0x00B0, 0x00E7, 0x2192, 0x2191, 0x0023,
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0x00F9, 0x00E0, 0x00F2, 0x00E8, 0x00EC },
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{ 0x0023, 0x0024, 0x0160, 0x0117, 0x0229, 0x017D, 0x010D, 0x016B,
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0x0161, 0x0105, 0x0173, 0x017E, 0x012F },
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{ 0x0023, 0x0144, 0x0105, 0x01B5, 0x015A, 0x0141, 0x0107, 0x00F3,
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0x0119, 0x017C, 0x015B, 0x0142, 0x017A },
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{ 0x00E7, 0x0024, 0x00A1, 0x00E1, 0x00E9, 0x00ED, 0x00F3, 0x00FA,
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0x00BF, 0x00FC, 0x00F1, 0x00E8, 0x00E0 },
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{ 0x0023, 0x00A4, 0x0162, 0x00C2, 0x015E, 0x01CD, 0x00CD, 0x0131,
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0x0163, 0x00E2, 0x015F, 0X01CE, 0x00EE },
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{ 0x0023, 0x00CB, 0x010C, 0x0106, 0x017D, 0x00D0, 0x0160, 0x00EB,
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0x010D, 0x0107, 0x017E, 0x00F0, 0x0161 },
|
||||
{ 0x0023, 0x00A4, 0x00C9, 0x00C4, 0x00D6, 0x00C5, 0x00DC, 0x005F,
|
||||
0x00E9, 0x00E4, 0x00F6, 0x00E5, 0x00FC },
|
||||
{ 0x0024, 0x011F, 0x0130, 0x015E, 0x00D6, 0x00C7, 0x00DC, 0x011E,
|
||||
0x0131, 0x015F, 0x00F6, 0x00E7, 0x00FC }
|
||||
};
|
||||
|
||||
/*
|
||||
* ETS 300 706 Table 37: Latin G2 Supplementary Set
|
||||
*
|
||||
* 0x49 seems to be dot below; not in Unicode (except combining), use U+002E.
|
||||
*/
|
||||
static const uint16_t
|
||||
latin_g2[96] = {
|
||||
/* 0x20 */ 0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x0024, 0x00A5, 0x0023, 0x00A7,
|
||||
/* 0x28 */ 0x00A4, 0x2018, 0x201C, 0x00AB, 0x2190, 0x2191, 0x2192, 0x2193,
|
||||
/* 0x30 */ 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00D7, 0x00B5, 0x00B6, 0x00B7,
|
||||
/* 0x38 */ 0x00F7, 0x2019, 0x201D, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
|
||||
/* 0x40 */ 0x0020, 0x02CB, 0x02CA, 0x02C6, 0x02DC, 0x02C9, 0x02D8, 0x02D9,
|
||||
/* 0x48 */ 0x00A8, 0x002E, 0x02DA, 0x02CF, 0x02CD, 0x02DD, 0x02DB, 0x02C7,
|
||||
/* 0x50 */ 0x2014, 0x00B9, 0x00AE, 0x00A9, 0x2122, 0x266A, 0x20A0, 0x2030,
|
||||
/* 0x58 */ 0x0251, 0x0020, 0x0020, 0x0020, 0x215B, 0x215C, 0x215D, 0x215E,
|
||||
/* 0x60 */ 0x2126, 0x00C6, 0x00D0, 0x00AA, 0x0126, 0x0020, 0x0132, 0x013F,
|
||||
/* 0x68 */ 0x0141, 0x00D8, 0x0152, 0x00BA, 0x00DE, 0x0166, 0x014A, 0x0149,
|
||||
/* 0x70 */ 0x0138, 0x00E6, 0x0111, 0x00F0, 0x0127, 0x0131, 0x0133, 0x0140,
|
||||
/* 0x78 */ 0x0142, 0x00F8, 0x0153, 0x00DF, 0x00FE, 0x0167, 0x014B, 0x25A0
|
||||
};
|
||||
|
||||
/*
|
||||
* ETS 300 706 Table 38: Cyrillic G0 Primary Set - Option 1 - Serbian/Croatian
|
||||
*/
|
||||
static const uint16_t
|
||||
cyrillic_1_g0[64] = {
|
||||
/* 0x40 */ 0x0427, 0x0410, 0x0411, 0x0426, 0x0414, 0x0415, 0x0424, 0x0413,
|
||||
/* 0x48 */ 0x0425, 0x0418, 0x0408, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E,
|
||||
/* 0x50 */ 0x041F, 0x040C, 0x0420, 0x0421, 0x0422, 0x0423, 0x0412, 0x0403,
|
||||
/* 0x58 */ 0x0409, 0x040A, 0x0417, 0x040B, 0x0416, 0x0402, 0x0428, 0x040F,
|
||||
/* 0x60 */ 0x0447, 0x0430, 0x0431, 0x0446, 0x0434, 0x0435, 0x0444, 0x0433,
|
||||
/* 0x68 */ 0x0445, 0x0438, 0x0458, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E,
|
||||
/* 0x70 */ 0x043F, 0x045C, 0x0440, 0x0441, 0x0442, 0x0443, 0x0432, 0x0453,
|
||||
/* 0x78 */ 0x0459, 0x045A, 0x0437, 0x045B, 0x0436, 0x0452, 0x0448, 0x25A0
|
||||
};
|
||||
|
||||
/*
|
||||
* ETS 300 706 Table 39: Cyrillic G0 Primary Set - Option 2 - Russian/Bulgarian
|
||||
*/
|
||||
static const uint16_t
|
||||
cyrillic_2_g0[64] = {
|
||||
/* 0x40 */ 0x042E, 0x0410, 0x0411, 0x0426, 0x0414, 0x0415, 0x0424, 0x0413,
|
||||
/* 0x48 */ 0x0425, 0x0418, 0x040D, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E,
|
||||
/* 0x50 */ 0x041F, 0x042F, 0x0420, 0x0421, 0x0422, 0x0423, 0x0416, 0x0412,
|
||||
/* 0x58 */ 0x042C, 0x042A, 0x0417, 0x0428, 0x042D, 0x0429, 0x0427, 0x042B,
|
||||
/* 0x60 */ 0x044E, 0x0430, 0x0431, 0x0446, 0x0434, 0x0435, 0x0444, 0x0433,
|
||||
/* 0x68 */ 0x0445, 0x0438, 0x045D, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E,
|
||||
/* 0x70 */ 0x043F, 0x044F, 0x0440, 0x0441, 0x0442, 0x0443, 0x0436, 0x0432,
|
||||
/* 0x78 */ 0x044C, 0x044A, 0x0437, 0x0448, 0x044D, 0x0449, 0x0447, 0x25A0
|
||||
};
|
||||
|
||||
/*
|
||||
* ETS 300 706 Table 40: Cyrillic G0 Primary Set - Option 3 - Ukrainian
|
||||
*/
|
||||
static const uint16_t
|
||||
cyrillic_3_g0[64] = {
|
||||
/* 0x40 */ 0x042E, 0x0410, 0x0411, 0x0426, 0x0414, 0x0415, 0x0424, 0x0413,
|
||||
/* 0x48 */ 0x0425, 0x0418, 0x040D, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E,
|
||||
/* 0x50 */ 0x041F, 0x042F, 0x0420, 0x0421, 0x0422, 0x0423, 0x0416, 0x0412,
|
||||
/* 0x58 */ 0x042C, 0x0406, 0x0417, 0x0428, 0x0404, 0x0429, 0x0427, 0x0407,
|
||||
/* 0x60 */ 0x044E, 0x0430, 0x0431, 0x0446, 0x0434, 0x0435, 0x0444, 0x0433,
|
||||
/* 0x68 */ 0x0445, 0x0438, 0x045D, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E,
|
||||
/* 0x70 */ 0x043F, 0x044F, 0x0440, 0x0441, 0x0442, 0x0443, 0x0436, 0x0432,
|
||||
/* 0x78 */ 0x044C, 0x0456, 0x0437, 0x0448, 0x0454, 0x0449, 0x0447, 0x25A0
|
||||
};
|
||||
|
||||
/*
|
||||
* ETS 300 706 Table 41: Cyrillic G2 Supplementary Set
|
||||
*/
|
||||
static const uint16_t
|
||||
cyrillic_g2[96] = {
|
||||
/* 0x20 */ 0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x0020, 0x00A5, 0x0023, 0x00A7,
|
||||
/* 0x28 */ 0x0020, 0x2018, 0x201C, 0x00AB, 0x2190, 0x2191, 0x2192, 0x2193,
|
||||
/* 0x30 */ 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00D7, 0x00B5, 0x00B6, 0x00B7,
|
||||
/* 0x38 */ 0x00F7, 0x2019, 0x201D, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
|
||||
/* 0x40 */ 0x0020, 0x02CB, 0x02CA, 0x02C6, 0x02DC, 0x02C9, 0x02D8, 0x02D9,
|
||||
/* 0x48 */ 0x00A8, 0x002E, 0x02DA, 0x02CF, 0x02CD, 0x02DD, 0x02DB, 0x02C7,
|
||||
/* 0x50 */ 0x2014, 0x00B9, 0x00AE, 0x00A9, 0x2122, 0x266A, 0x20A0, 0x2030,
|
||||
/* 0x58 */ 0x0251, 0x0141, 0x0142, 0x00DF, 0x215B, 0x215C, 0x215D, 0x215E,
|
||||
/* 0x60 */ 0x0044, 0x0045, 0x0046, 0x0047, 0x0049, 0x004A, 0x004B, 0x004C,
|
||||
/* 0x68 */ 0x004E, 0x0051, 0x0052, 0x0053, 0x0055, 0x0056, 0x0057, 0x005A,
|
||||
/* 0x70 */ 0x0064, 0x0065, 0x0066, 0x0067, 0x0069, 0x006A, 0x006B, 0x006C,
|
||||
/* 0x78 */ 0x006E, 0x0071, 0x0072, 0x0073, 0x0075, 0x0076, 0x0077, 0x007A
|
||||
};
|
||||
|
||||
/*
|
||||
* ETS 300 706 Table 42: Greek G0 Primary Set
|
||||
*/
|
||||
static const uint16_t
|
||||
greek_g0[64] = {
|
||||
/* 0x40 */ 0x0390, 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397,
|
||||
/* 0x48 */ 0x0398, 0x0399, 0x039A, 0x039B, 0x039C, 0x039D, 0x039E, 0x039F,
|
||||
/* 0x50 */ 0x03A0, 0x03A1, 0x0374, 0x03A3, 0x03A4, 0x03A5, 0x03A6, 0x03A7,
|
||||
/* 0x58 */ 0x03A8, 0x03A9, 0x03AA, 0x03AB, 0x03AC, 0x03AD, 0x03AE, 0x03AF,
|
||||
/* 0x60 */ 0x03B0, 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7,
|
||||
/* 0x68 */ 0x03B8, 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF,
|
||||
/* 0x70 */ 0x03C0, 0x03C1, 0x03C2, 0x03C3, 0x03C4, 0x03C5, 0x03C6, 0x03C7,
|
||||
/* 0x78 */ 0x03C8, 0x03C9, 0x03CA, 0x03CB, 0x03CC, 0x03CD, 0x03CE, 0x25A0
|
||||
};
|
||||
|
||||
/*
|
||||
* ETS 300 706 Table 43: Greek G2 Supplementary Set
|
||||
*/
|
||||
static const uint16_t
|
||||
greek_g2[96] = {
|
||||
/* 0x20 */ 0x00A0, 0x0061, 0x0062, 0x00A3, 0x0065, 0x0068, 0x0069, 0x00A7,
|
||||
/* 0x28 */ 0x003A, 0x2018, 0x201C, 0x006B, 0x2190, 0x2191, 0x2192, 0x2193,
|
||||
/* 0x30 */ 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x0078, 0x006D, 0x006E, 0x0070,
|
||||
/* 0x38 */ 0x00F7, 0x2019, 0x201D, 0x0074, 0x00BC, 0x00BD, 0x00BE, 0x0078,
|
||||
/* 0x40 */ 0x0020, 0x02CB, 0x02CA, 0x02C6, 0x02DC, 0x02C9, 0x02D8, 0x02D9,
|
||||
/* 0x48 */ 0x00A8, 0x002E, 0x02DA, 0x02CF, 0x02CD, 0x02DD, 0x02DB, 0x02C7,
|
||||
/* 0x50 */ 0x003F, 0x00B9, 0x00AE, 0x00A9, 0x2122, 0x266A, 0x20A0, 0x2030,
|
||||
/* 0x58 */ 0x0251, 0x038A, 0x038E, 0x038F, 0x215B, 0x215C, 0x215D, 0x215E,
|
||||
/* 0x60 */ 0x0043, 0x0044, 0x0046, 0x0047, 0x004A, 0x004C, 0x0051, 0x0052,
|
||||
/* 0x68 */ 0x0053, 0x0055, 0x0056, 0x0057, 0x0059, 0x005A, 0x0386, 0x0389,
|
||||
/* 0x70 */ 0x0063, 0x0064, 0x0066, 0x0067, 0x006A, 0x006C, 0x0071, 0x0072,
|
||||
/* 0x78 */ 0x0073, 0x0075, 0x0076, 0x0077, 0x0079, 0x007A, 0x0388, 0x25A0
|
||||
};
|
||||
|
||||
/*
|
||||
* ETS 300 706 Table 44: Arabic G0 Primary Set
|
||||
*/
|
||||
static const uint16_t
|
||||
arabic_g0[96] = {
|
||||
/* 0x20 */ 0x0020, 0x0021, 0x0022, 0x00A3, 0x0024, 0x0025, 0x0000, 0x0000,
|
||||
/* 0x28 */ 0x0029, 0x0028, 0x002A, 0x002B, 0x060C, 0x002D, 0x002E, 0x002F,
|
||||
/* 0x30 */ 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
|
||||
/* 0x38 */ 0x0038, 0x0039, 0x003A, 0x061B, 0x003E, 0x003D, 0x003C, 0x061F,
|
||||
/* 0x40 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x48 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x50 */ 0x0630, 0x0631, 0x0632, 0x0633, 0x0634, 0x0635, 0x0636, 0x0637,
|
||||
/* 0x58 */ 0x0638, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0023,
|
||||
/* 0x60 */ 0x0640, 0x0641, 0x0642, 0x0643, 0x0644, 0x0645, 0x0646, 0x0647,
|
||||
/* 0x68 */ 0x0648, 0x0649, 0x064A, 0x062B, 0x062D, 0x062C, 0x062E, 0x0000,
|
||||
/* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x25A0
|
||||
};
|
||||
|
||||
/*
|
||||
* ETS 300 706 Table 45: Arabic G2 Supplementary Set
|
||||
*/
|
||||
static const uint16_t
|
||||
arabic_g2[96] = {
|
||||
/* 0x20 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x30 */ 0x0660, 0x0661, 0x0662, 0x0663, 0x0664, 0x0665, 0x0666, 0x0667,
|
||||
/* 0x38 */ 0x0668, 0x0669, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x40 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x48 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x60 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
/* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
|
||||
};
|
||||
|
||||
/*
|
||||
* ETS 300 706 Table 46: Hebrew G0 Primary Set
|
||||
*/
|
||||
static const uint16_t
|
||||
hebrew_g0[37] = {
|
||||
/* 0x5b */ 0x2190, 0x00BD, 0x2192, 0x2191, 0x0023,
|
||||
/* 0x60 */ 0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7,
|
||||
/* 0x68 */ 0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF,
|
||||
/* 0x70 */ 0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7,
|
||||
/* 0x78 */ 0x05E8, 0x05E9, 0x05EA, 0x20AA, 0x2016, 0x00BE, 0x00F7, 0x25A0
|
||||
};
|
||||
|
||||
/**
|
||||
* cs Teletext character set as listed in ETS 300 706 section 15.
|
||||
* ss National character subset as listed in section 15, only
|
||||
* applicable to character set CHARSET_LATIN_G0, ignored otherwise.
|
||||
* c Character code in range 0x20 ... 0x7F.
|
||||
*
|
||||
* Translate Teletext character code to Unicode.
|
||||
*/
|
||||
static uint16_t
|
||||
tt_convert_char(int Gtriplet, int natopts, uint8_t inchar)
|
||||
teletext_to_ucs2(uint8_t cs, uint8_t ss, uint8_t c)
|
||||
{
|
||||
int no = laG0_nat_opts_lookup[Gtriplet & 0xf][natopts & 0x7];
|
||||
uint8_t c = inchar & 0x7f;
|
||||
int i;
|
||||
|
||||
if(!laG0_nat_replace_map[c])
|
||||
if (c < 0x20 || c > 0x7f)
|
||||
return 0;
|
||||
|
||||
switch (cs) {
|
||||
case CHARSET_LATIN_G0:
|
||||
/* shortcut */
|
||||
if (0xF8000019UL & (1 << (c & 31))) {
|
||||
if (ss > 0) {
|
||||
assert(ss < 14);
|
||||
for (i = 0; i < SUBSET_CHARMAP_COUNT; i++)
|
||||
if (c == teletext_subset[0][i])
|
||||
return teletext_subset[ss][i];
|
||||
}
|
||||
if (c == 0x24)
|
||||
return 0x00A4u;
|
||||
else if (c == 0x7C)
|
||||
return 0x00A6u;
|
||||
else if (c == 0x7F)
|
||||
return 0x25A0u;
|
||||
}
|
||||
return c;
|
||||
else
|
||||
return laG0_nat_opts16[no][laG0_nat_replace_map[c]];
|
||||
|
||||
case CHARSET_LATIN_G2:
|
||||
return latin_g2[c - 0x20];
|
||||
|
||||
case CHARSET_CYRILLIC_1_G0:
|
||||
return c < 0x40 ? c : cyrillic_1_g0[c - 0x40];
|
||||
|
||||
case CHARSET_CYRILLIC_2_G0:
|
||||
if (c == 0x26)
|
||||
return 0x044Bu;
|
||||
else if (c < 0x40)
|
||||
return c;
|
||||
else
|
||||
return cyrillic_2_g0[c - 0x40];
|
||||
|
||||
case CHARSET_CYRILLIC_3_G0:
|
||||
if (c == 0x26)
|
||||
return 0x00EFu;
|
||||
else if (c < 0x40)
|
||||
return c;
|
||||
else
|
||||
return cyrillic_3_g0[c - 0x40];
|
||||
|
||||
case CHARSET_CYRILLIC_G2:
|
||||
return cyrillic_g2[c - 0x20];
|
||||
|
||||
case CHARSET_GREEK_G0:
|
||||
if (c == 0x3C)
|
||||
return 0x00ABu;
|
||||
else if (c == 0x3E)
|
||||
return 0x00BBu;
|
||||
else if (c < 0x40)
|
||||
return c;
|
||||
else
|
||||
return greek_g0[c - 0x40];
|
||||
|
||||
case CHARSET_GREEK_G2:
|
||||
return greek_g2[c - 0x20];
|
||||
|
||||
case CHARSET_ARABIC_G0:
|
||||
return arabic_g0[c - 0x20];
|
||||
|
||||
case CHARSET_ARABIC_G2:
|
||||
return arabic_g2[c - 0x20];
|
||||
|
||||
case CHARSET_HEBREW_G0:
|
||||
return c < 0x5b ? c : hebrew_g0[c - 0x5b];
|
||||
|
||||
case CHARSET_BLOCK_MOSAIC_G1:
|
||||
return 0;
|
||||
|
||||
case CHARSET_SMOOTH_MOSAIC_G3:
|
||||
return 0;
|
||||
|
||||
default:
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
static inline uint8_t
|
||||
ham_decode8(uint8_t a)
|
||||
{
|
||||
return hamtable[a] & 0xf;
|
||||
}
|
||||
|
||||
static uint8_t
|
||||
ham_decode(uint8_t a, uint8_t b)
|
||||
ham_decode16(uint8_t *p)
|
||||
{
|
||||
a = hamtable[a];
|
||||
b = hamtable[b];
|
||||
return (ham_decode8(p[1]) << 4) | ham_decode8(p[0]);
|
||||
}
|
||||
|
||||
return (b << 4) | (a & 0xf);
|
||||
static uint32_t
|
||||
ham_decode24(uint8_t *p)
|
||||
{
|
||||
/* note: no parity checking / correction */
|
||||
uint32_t r = ((p[0] >> 2) & 1) | ((p[0] & 0xf0) >> 3);
|
||||
r |= (((uint32_t)p[1]) & 0x7f) << 5;
|
||||
r |= (((uint32_t)p[2]) & 0x7f) << 13;
|
||||
return r;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -260,20 +671,35 @@ update_tt_clock(mpegts_service_t *t, const uint8_t *buf)
|
|||
return 1;
|
||||
}
|
||||
|
||||
static uint8_t *
|
||||
get_cset(uint8_t off)
|
||||
{
|
||||
if (off >= ARRAY_SIZE(char_table))
|
||||
return NULL;
|
||||
if (char_table[off][0] == CHARSET_NONE)
|
||||
return NULL;
|
||||
return char_table[off];
|
||||
}
|
||||
|
||||
static void
|
||||
extract_subtitle(mpegts_service_t *t, elementary_stream_t *st,
|
||||
tt_mag_t *ttm, int64_t pts)
|
||||
{
|
||||
int i, j, off = 0;
|
||||
int i, j, start, off = 0;
|
||||
uint8_t sub[2000];
|
||||
uint8_t *cset, ch;
|
||||
int is_box = 0;
|
||||
uint8_t first = 0;
|
||||
|
||||
if ((cset = get_cset((ttm->ttm_charset[0] & ~7) + ttm->ttm_national)) == NULL)
|
||||
if ((cset = get_cset(ttm->ttm_charset[0])) == NULL)
|
||||
cset = char_table[0]; /* fallback */
|
||||
|
||||
for (i = 0; i < 23; i++) {
|
||||
int start = off;
|
||||
start = off;
|
||||
|
||||
for (j = 0; j < 40; j++) {
|
||||
char ch = ttm->ttm_page[40 * i + j];
|
||||
ch = ttm->ttm_page[40 * i + j];
|
||||
|
||||
switch(ch) {
|
||||
case 0 ... 7:
|
||||
|
|
@ -289,15 +715,35 @@ extract_subtitle(mpegts_service_t *t, elementary_stream_t *st,
|
|||
|
||||
default:
|
||||
if (ch >= 0x20 && is_box && (start != off || ch > 0x20)) {
|
||||
uint16_t code = tt_convert_char(0, ttm->ttm_lang, ch);
|
||||
|
||||
if(code & 0xff00)
|
||||
sub[off++] = (code & 0xff00) >> 8;
|
||||
sub[off++] = code;
|
||||
if (!first)
|
||||
first = ch;
|
||||
|
||||
uint16_t ucs2 = teletext_to_ucs2(cset[0], cset[2], ch);
|
||||
|
||||
/* ucs2 -> utf8 conversion */
|
||||
if (ucs2 == 0) {
|
||||
/* nothing */
|
||||
} else if (ucs2 < 0x80) {
|
||||
if (off < sizeof(sub))
|
||||
sub[off++] = ucs2;
|
||||
} else if (ucs2 < 0x800) {
|
||||
if (off + 1 < sizeof(sub)) {
|
||||
sub[off++] = (ucs2 >> 6) | 0xc0;
|
||||
sub[off++] = (ucs2 & 0x3f) | 0x80;
|
||||
}
|
||||
} else {
|
||||
assert(ucs2 < 0xd800 || ucs2 >= 0xe000);
|
||||
if (off + 2 < sizeof(sub)) {
|
||||
sub[off++] = (ucs2 >> 12) | 0xe0;
|
||||
sub[off++] = ((ucs2 >> 6) & 0x3f) | 0x80;
|
||||
sub[off++] = (ucs2 & 0x3f) | 0x80;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if(start != off)
|
||||
if(start != off && off < sizeof(sub))
|
||||
sub[off++] = '\n';
|
||||
}
|
||||
|
||||
|
|
@ -381,6 +827,7 @@ tt_decode_line(mpegts_service_t *t, elementary_stream_t *st, uint8_t *buf)
|
|||
int page, magidx, i;
|
||||
tt_mag_t *ttm;
|
||||
tt_private_t *ttp;
|
||||
uint32_t trip1, trip2;
|
||||
|
||||
if(st->es_priv == NULL) {
|
||||
/* Allocate privdata for reassembly */
|
||||
|
|
@ -389,9 +836,9 @@ tt_decode_line(mpegts_service_t *t, elementary_stream_t *st, uint8_t *buf)
|
|||
ttp = st->es_priv;
|
||||
}
|
||||
|
||||
mpag = ham_decode(buf[0], buf[1]);
|
||||
mpag = ham_decode16(buf);
|
||||
magidx = mpag & 7;
|
||||
ttm = &ttp->ttp_mags[magidx];
|
||||
ttm = &ttp->ttp_mags[magidx];
|
||||
|
||||
line = mpag >> 3;
|
||||
|
||||
|
|
@ -408,7 +855,7 @@ tt_decode_line(mpegts_service_t *t, elementary_stream_t *st, uint8_t *buf)
|
|||
ttm->ttm_curpage = 0;
|
||||
}
|
||||
|
||||
if((page = ham_decode(buf[2], buf[3])) == 0xff)
|
||||
if((page = ham_decode16(buf + 2)) == 0xff)
|
||||
return;
|
||||
|
||||
/* The page is BDC encoded, mag 0 is displayed as page 800+ */
|
||||
|
|
@ -416,10 +863,13 @@ tt_decode_line(mpegts_service_t *t, elementary_stream_t *st, uint8_t *buf)
|
|||
|
||||
ttm->ttm_curpage = page;
|
||||
|
||||
s12 = ham_decode(buf[4], buf[5]);
|
||||
c = ham_decode(buf[8], buf[9]);
|
||||
s12 = ham_decode16(buf + 4);
|
||||
c = ham_decode16(buf + 8);
|
||||
|
||||
ttm->ttm_lang = c >> 5;
|
||||
/* The national bits are reversed in specification, Table 32 */
|
||||
ttm->ttm_national = ((c >> 7) & 1) |
|
||||
((c >> 5) & 2) |
|
||||
((c >> 3) & 4);
|
||||
|
||||
if(s12 & 0x80) {
|
||||
/* Erase page */
|
||||
|
|
@ -439,6 +889,16 @@ tt_decode_line(mpegts_service_t *t, elementary_stream_t *st, uint8_t *buf)
|
|||
}
|
||||
break;
|
||||
|
||||
case 28:
|
||||
case 29:
|
||||
if (ham_decode8(buf[2]) != 0) break; /* designation must be 0 */
|
||||
trip1 = ham_decode24(buf + 3);
|
||||
trip2 = ham_decode24(buf + 6);
|
||||
/* extract the character set designation and national option selection bits */
|
||||
ttm->ttm_charset[0] = (trip1 >> 7) & 0x7f;
|
||||
ttm->ttm_charset[1] = (trip1 >> 14) | ((trip2 & 7) << 4);
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue