X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/1b4a78cabb83b92a621a8c81108c264957e54a0c..894e18128f153afdf0b6ab1785a98b32efa6d798:/lib/dvb/teletext.cpp diff --git a/lib/dvb/teletext.cpp b/lib/dvb/teletext.cpp index 6f8886eb..7cef7b28 100644 --- a/lib/dvb/teletext.cpp +++ b/lib/dvb/teletext.cpp @@ -3,14 +3,132 @@ #include #include -/* - This is a very simple en300 706 telext decoder. - - It can only decode a single page at a time, thus it's only used - for subtitles. - - */ +// G0 and G2 national option table +// see table 33 in ETSI EN 300 706 +// use it with (triplet 1 bits 14-11)*(ctrl bits C12-14) + +unsigned char NationalOptionSubsetsLookup[16*8] = +{ + 1, 4, 11, 5, 3, 8, 0, 9, + 7, 4, 11, 5, 3, 1, 0, 1, + 1, 4, 11, 5, 3, 8, 12, 1, + 1, 1, 1, 1, 1, 10, 1, 9, + 1, 4, 2, 6, 1, 1, 0, 1, + 1, 1, 1, 1, 1, 1, 1, 1, // reserved + 1, 1, 1, 1, 1, 1, 12, 1, + 1, 1, 1, 1, 1, 1, 1, 1, // reserved + 1, 1, 1, 1, 3, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, // reserved + 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, // reserved + 1, 1, 1, 1, 1, 1, 1, 1, // reserved + 1, 1, 1, 1, 1, 1, 1, 1, // reserved + 1, 1, 1, 1, 1, 1, 1, 1, // reserved + 1, 1, 1, 1, 1, 1, 1, 1 // reserved +}; + +unsigned char NationalReplaceMap[128] = +{ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 5, 6, 7, 8, + 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 11, 12, 13, 0 +}; +// national option subsets (UTF8) +// see table 36 in ETSI EN 300 706 + +unsigned int NationalOptionSubsets[13*14] = { + 0, 0x0023, 0xc5af, 0xc48d, 0xc5a3, 0xc5be, 0xc3bd, 0xc3ad, 0xc599, 0xc3a9, 0xc3a1, 0xc49b, 0xc3ba, 0xc5a1, // Slovak/Czech + 0, 0xc2a3, 0x0024, 0x0040, 0xe28690, 0xc2bd, 0xe28692, 0xe28691, 0x0023, 0x002d, 0xc2bc, 0xc781, 0xc2be, 0xc3b7, // English + 0, 0x0023, 0xc3b5, 0xc5A0, 0xc384, 0xc396, 0xc5bd, 0xc39c, 0xc395, 0xc5a1, 0xc3a4, 0xc3b6, 0xc5be, 0xc3bc, // Estonian + 0, 0xc3a9, 0xc3af, 0xc3a0, 0xc3ab, 0xc3aa, 0xc3b9, 0xc3ae, 0x0023, 0xc3a8, 0xc3a2, 0xc3b4, 0xc3bb, 0xc3a7, // French + 0, 0x0023, 0x0024, 0xc2a7, 0xc384, 0xc396, 0xc39c, 0x005e, 0x005f, 0xcb9a, 0xc3a4, 0xc3b6, 0xc3bc, 0xc39f, // German + 0, 0xc2a3, 0x0024, 0xc3a9, 0xcb9a, 0xc3a7, 0xe28692, 0xe28691, 0x0023, 0xc3b9, 0xc3a0, 0xc3b2, 0xc3a8, 0xc3ac, // Italian + 0, 0x0023, 0x0024, 0xc5a0, 0xc497, 0xc8a9, 0xc5bd, 0xc48d, 0xc5ab, 0xc5a1, 0xc485, 0xc5b3, 0xc5be, 0xc4af/*FIXMEE*/, // Lithuanian/Lettish + 0, 0x0023, 0xc584, 0xc485, 0xc6b5, 0xc59a, 0xc581, 0xc487, 0xc3b3, 0xc499, 0xc5bc, 0xc59b, 0xc582, 0xc5ba, // Polish + 0, 0xc3a7, 0x0024, 0xc2a1, 0xc3a1, 0xc3a9, 0xc3ad, 0xc3b3, 0xc3ba, 0xc2bf, 0xc3bc, 0xc3b1, 0xc3a8, 0xc3a0, // Spanish/Portuguese + 0, 0x0023, 0xc2a4, 0xc5a2, 0xc382, 0xc59e, 0xc78d, 0xc38e, 0xc4b1, 0xc5a3, 0xc3a2, 0xc59f, 0xc78e, 0xc3ae, // Rumanian + 0, 0x0023, 0xc38b, 0xc48c, 0xc486, 0xc5bd, 0xc490, 0xc5a0, 0xc3ab, 0xc48d, 0xc487, 0xc5be, 0xc491, 0xc5a1, // Slovenian/Serbian/Croation + 0, 0x0023, 0xc2a4, 0xc389, 0xc384, 0xc396, 0xc385, 0xc39c, 0x005f, 0xc3a9, 0xc3a4, 0xc3b6, 0xc3a5, 0xc3bc, // Finnish/Hungarian/Swedish + 0, 0xee8080/*FIXME*/, 0xc7a7, 0xc4b0, 0xc59e, 0xc396, 0xc387, 0xc39c, 0xc7a6, 0xc4b1, 0xc59f, 0xc3b6, 0xc3a7, 0xc3bc // Turkish +}; + +unsigned short diacr_upper_cmap[26*15] = { + 0xc380, 0xc381, 0xc382, 0xc383, 0xc480, 0xc482, 0x0000, 0xc384, 0x0000, 0xc385, 0x0000, 0x0000, 0x0000, 0xc484, 0xc482, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0xc486, 0xc488, 0x0000, 0x0000, 0xc48c, 0xc48a, 0x0000, 0x0000, 0x0000, 0xc387, 0x0000, 0x0000, 0x0000, 0xc48c, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc48e, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc48e, + 0xc388, 0xc389, 0xc38a, 0x0000, 0xc492, 0xc494, 0xc496, 0xc38b, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc498, 0xc49a, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0xc49c, 0x0000, 0x0000, 0xc49e, 0xc4a0, 0x0000, 0x0000, 0x0000, 0xc4a2, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0xc4a4, 0x0000, 0xc4a6, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0xc38c, 0xc38d, 0xc38e, 0xc4a8, 0xc4aa, 0xc4ac, 0xc4b0, 0xc38f, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc4ae, 0xc4ac, + 0x0000, 0x0000, 0xc4b4, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc4b6, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0xc4b9, 0x0000, 0x0000, 0x0000, 0x0000, 0xc4bf, 0x0000, 0x0000, 0x0000, 0xc4bb, 0x0000, 0x0000, 0x0000, 0xc4bd, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0xc583, 0x0000, 0xc391, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc585, 0x0000, 0x0000, 0x0000, 0xc587, + 0xc392, 0xc393, 0xc394, 0xc395, 0xc58c, 0xc58e, 0x0000, 0xc396, 0x0000, 0x0000, 0x0000, 0x0000, 0xc590, 0x0000, 0xc58e, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0xc594, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc596, 0x0000, 0x0000, 0x0000, 0xc598, + 0x0000, 0xc59a, 0xc59c, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc59e, 0x0000, 0x0000, 0x0000, 0xc5a0, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc5a2, 0x0000, 0x0000, 0x0000, 0xc5a4, + 0xc399, 0xc39a, 0xc39b, 0xc5a8, 0xc5aa, 0xc5ac, 0x0000, 0xc39c, 0x0000, 0xc5ae, 0x0000, 0x0000, 0xc5b0, 0xc5b2, 0xc5ac, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0xc5b4, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0xc39d, 0xc5b6, 0x0000, 0x0000, 0x0000, 0x0000, 0xc5b8, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0xc5b9, 0x0000, 0x0000, 0x0000, 0x0000, 0xc5bb, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc5bd +}; + +unsigned short diacr_lower_cmap[26*15] = { + 0xc3a0, 0xc3a1, 0xc3a2, 0xc3a3, 0xc481, 0xc483, 0x0000, 0xc3a4, 0x0000, 0xc3a5, 0x0000, 0x0000, 0x0000, 0xc485, 0xc483, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0xc487, 0xc489, 0x0000, 0x0000, 0xc48d, 0xc48b, 0x0000, 0x0000, 0x0000, 0xc3a7, 0x0000, 0x0000, 0x0000, 0xc48d, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc48f, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc48f, + 0xc3a8, 0xc3a9, 0xc3aa, 0x0000, 0xc493, 0xc495, 0xc497, 0xc3ab, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc499, 0xc49b, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0xc49d, 0x0000, 0x0000, 0xc49f, 0xc4a1, 0x0000, 0x0000, 0x0000, 0xc4a3, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0xc4a5, 0x0000, 0xc4a7, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0xc3ac, 0xc3ad, 0xc3ae, 0xc4a9, 0xc4ab, 0xc4ad, 0xc4b1, 0xc3af, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc4af, 0xc4ad, + 0x0000, 0x0000, 0xc4b5, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc4b7, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0xc4ba, 0x0000, 0x0000, 0x0000, 0x0000, 0xc580, 0x0000, 0x0000, 0x0000, 0xc4bc, 0x0000, 0x0000, 0x0000, 0xc4be, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0xc584, 0x0000, 0xc3b1, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc586, 0x0000, 0x0000, 0x0000, 0xc588, + 0xc3b2, 0xc3b3, 0xc3b4, 0xc3b5, 0xc58d, 0xc58f, 0x0000, 0xc3b6, 0x0000, 0x0000, 0x0000, 0x0000, 0xc591, 0x0000, 0xc58f, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0xc595, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc597, 0x0000, 0x0000, 0x0000, 0xc599, + 0x0000, 0xc59b, 0xc59d, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc59f, 0x0000, 0x0000, 0x0000, 0xc5a1, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc5a3, 0x0000, 0x0000, 0x0000, 0xc5a5, + 0xc3b9, 0xc3ba, 0xc3bb, 0xc5a9, 0xc5ab, 0xc5ad, 0x0000, 0xc3bc, 0x0000, 0xc5af, 0x0000, 0x0000, 0xc5b1, 0xc5b3, 0xc5ad, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0xc5b5, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0xc3bd, 0xc5b7, 0x0000, 0x0000, 0x0000, 0x0000, 0xc3bf, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0xc5ba, 0x0000, 0x0000, 0x0000, 0x0000, 0xc5bc, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xc5be +}; + +unsigned int Latin_G2_set[6*16] = { + 0x0020, 0xc2a1, 0xc2a2, 0xc2a3, 0x0024, 0xc2a5, 0x0023, 0xc2a7, 0xc2a4, 0xc2b4, 0x0022, 0xc2ab, 0x003c, 0x005e, 0x003d, 0x0076, + 0xc2b0, 0xc2b1, 0xc2b2, 0xc2b3, 0xc397, 0xc2b5, 0xc2b6, 0xc2b7, 0xc3b7, 0xc2b4, 0x0022, 0xc2bb, 0xc2bc, 0xc2bd, 0xc2be, 0xc2bf, + 0x0020, 0x0060, 0xc2b4, 0xcb86, 0x007e, 0xcb89, 0xcb98, 0xcb99, 0xcc88, 0x002e, 0xcb9a, 0x0020, 0x005f, 0x0022, 0x0020, 0xcb98, + 0x002d, 0xc2b9, 0xc2ae, 0xc2a9, 0xc4a2, 0x002a, 0xc2ac, 0xc0b0, 0xceb1, 0x0020, 0x0020, 0x0020, 0x002a, 0x002a, 0x002a, 0x002a, + 0xcea9, 0xc386, 0xc490, 0x0061, 0xc4a6, 0x0020, 0xc4b2, 0xc4bf, 0xc581, 0xc398, 0xc592, 0x006f, 0xc39e, 0xc5a6, 0xc58a, 0xc589, + 0xc4b8, 0xc3a6, 0xc491, 0xc48f, 0xc4a7, 0xc4b1, 0xc4b3, 0xc580, 0xc582, 0xc3b8, 0xc593, 0xc39f, 0xc3be, 0xc5a7, 0xc58b, 0x0020, +}; + +// This is a very simple en300 706 telext decoder. +// It can only decode a single page at a time, thus it's only used +// for subtitles. And it ONLY support LATIN Charsets yet! + DEFINE_REF(eDVBTeletextParser); /* we asumme error free transmission! */ @@ -26,33 +144,52 @@ static inline unsigned char decode_odd_parity(unsigned char *b) static inline unsigned char decode_hamming_84(unsigned char *b) { - unsigned char res = 0; - res |= (*b << 3) & 8; - res |= (*b ) & 4; - res |= (*b >> 3) & 2; - res |= (*b >> 6) & 1; - return res; + return ((*b << 3) & 8) | ((*b ) & 4) | ((*b >> 3) & 2) | ((*b >> 6) & 1); } static inline unsigned long decode_hamming_2418(unsigned char *b) { - unsigned long h24 = b[0] | (b[1] << 8) | (b[2] << 16); + static const unsigned char rev[16] = { + 0x00,0x08,0x04,0x0c, + 0x02,0x0a,0x06,0x0e, + 0x01,0x09,0x05,0x0d, + 0x03,0x0b,0x07,0x0f + }; + b[0] = rev[b[0] >> 4] | (rev[b[0] & 0xf] << 4); + b[1] = rev[b[1] >> 4] | (rev[b[1] & 0xf] << 4); + b[2] = rev[b[2] >> 4] | (rev[b[2] & 0xf] << 4); + return ((b[0] & 0x04) >> 2) | ((b[0] & 0x70) >> 3) | ((b[1] & 0x7f) << 4) | ((b[2] & 0x7f) << 11); +} + +static int extractPTS(pts_t &pts, unsigned char *pkt) +{ + pkt += 7; + int flags = *pkt++; + + pkt++; // header length - return - ((h24 & 0x000004) >> 2) | - ((h24 & 0x000070) >> 3) | - ((h24 & 0x007f00) >> 4) | - ((h24 & 0x7f0000) >> 5); + if (flags & 0x80) /* PTS present? */ + { + /* damn gcc bug */ + pts = ((unsigned long long)(((pkt[0] >> 1) & 7))) << 30; + pts |= pkt[1] << 22; + pts |= (pkt[2]>>1) << 15; + pts |= pkt[3] << 7; + pts |= (pkt[5]>>1); + + return 0; + } else + return -1; } eDVBTeletextParser::eDVBTeletextParser(iDVBDemux *demux) { setStreamID(0xBD); /* as per en 300 472 */ - setPage(0x150); + setPageAndMagazine(-1, -1); if (demux->createPESReader(eApp, m_pes_reader)) - eDebug("failed to create PES reader!"); + eDebug("failed to create teletext subtitle PES reader!"); else m_pes_reader->connectRead(slot(*this, &eDVBTeletextParser::processData), m_read_connection); } @@ -61,10 +198,26 @@ eDVBTeletextParser::~eDVBTeletextParser() { } +char *get_bits(int val, int count) +{ + static char buf[33]; + memset(buf, 0, 32); + if (count < 33) + for (int i=0; i < count; ++i) + { + buf[(count-i)-1]=val&1?'1':'0'; + val>>=1; + } + return buf; +} + void eDVBTeletextParser::processPESPacket(__u8 *pkt, int len) { unsigned char *p = pkt; + pts_t pts; + int have_pts = extractPTS(pts, pkt); + p += 4; len -= 4; /* start code, already be verified by pes parser */ p += 2; len -= 2; /* length, better use the argument */ @@ -78,7 +231,7 @@ void eDVBTeletextParser::processPESPacket(__u8 *pkt, int len) while (len > 2) { - unsigned char data_unit_id = *p++; + /*unsigned char data_unit_id = */*p++; unsigned char data_unit_length = *p++; len -= 2; @@ -90,66 +243,221 @@ void eDVBTeletextParser::processPESPacket(__u8 *pkt, int len) if (data_unit_length != 44) { - eDebug("illegal data unit length %d", data_unit_length); + /* eDebug("illegal data unit length %d", data_unit_length); */ break; } - unsigned char line_offset = *p++; len--; +// if (data_unit_id != 0x03) +// { +// /* eDebug("non subtitle data unit id %d", data_unit_id); */ +// break; +// } + + /*unsigned char line_offset =*/ *p++; len--; unsigned char framing_code = *p++; len--; int magazine_and_packet_address = decode_hamming_84(p++); len--; magazine_and_packet_address |= decode_hamming_84(p++)<<4; len--; - + unsigned char *data = p; p += 40; len -= 40; if (framing_code != 0xe4) /* no teletxt data */ continue; - - m_M = magazine_and_packet_address & 7; - m_Y = magazine_and_packet_address >> 3; -// eDebug("line %d, framing code: %02x, M=%02x, Y=%02x", line_offset, framing_code, M, Y); - - if (m_Y == 0) /* page header */ + + int M = magazine_and_packet_address & 7, + Y = magazine_and_packet_address >> 3; +// eDebug("line %d, framing code: %02x, M=%02x, Y=%02x", line_offset, framing_code, m_M, m_Y); + + if (Y == 0) /* page header */ { - m_C = 0; - - m_S1 = decode_hamming_84(data + 2); /* S1 */ - int S2C4 = decode_hamming_84(data + 3); - - m_S2 = S2C4 & 7; - m_C |= (S2C4 & 8) ? (1<<4) : 0; - - m_S3 = decode_hamming_84(data + 4); - - int S4C5C6 = decode_hamming_84(data + 5); - - m_S4 = S4C5C6 & 3; - m_C |= (S4C5C6 & 0xC) << 3; - - m_C |= decode_hamming_84(data + 6) << 7; - m_C |= decode_hamming_84(data + 7) << 11; - + int X = decode_hamming_84(data + 1) * 0x10 + decode_hamming_84(data), +// S1 = decode_hamming_84(data + 2), + S2C4 = decode_hamming_84(data + 3), +// S2 = S2C4 & 7, +// S3 = decode_hamming_84(data + 4), + S4C5C6 = decode_hamming_84(data + 5), +// S4 = S4C5C6 & 3, + C = ((S2C4 & 8) ? (1<<4) : 0) | + ((S4C5C6 & 0xC) << 3) | + (decode_hamming_84(data + 6) << 7) | + (decode_hamming_84(data + 7) << 11), + serial_mode = C & (1<<11); + /* page on the same magazine? end current page. */ - if ((m_M == m_page_M) && (m_page_open)) + if ((serial_mode || M == m_page_M) && m_page_open) { - handlePageEnd(); + eDebug("Page End %d %lld", !have_pts, pts); + handlePageEnd(have_pts, pts); m_page_open = 0; } - - m_X = decode_hamming_84(data+1) * 0x10 + decode_hamming_84(data); - + + if ((C & (1<<6)) && (X != 0xFF) && !(C & (1<<5))) /* scan for pages with subtitle bit set */ + { + eDVBServicePMTHandler::subtitleStream s; + s.pid = m_pid; + s.subtitling_type = 0x01; // ebu teletext subtitle + s.teletext_page_number = X & 0xFF; + s.teletext_magazine_number = M & 7; + m_found_subtitle_pages.insert(s); + } + /* correct page on correct magazine? open page. */ - if ((m_M == m_page_M) && (m_X == m_page_X)) + if (M == m_page_M && X == m_page_X) { + eDebug("Page Start %d %lld", !have_pts, pts); + m_C = C; + m_Y = Y; handlePageStart(); m_page_open = 1; + m_box_open = 0; handleLine(data + 8, 32); } - } else + } else if (Y < 26) // directly displayable packet { - /* data for the selected page? */ - if ((m_M == m_page_M) && m_page_open) + /* data for the selected page ? */ + if (M == m_page_M && m_page_open) + { + m_Y = Y; + m_box_open = 0; handleLine(data, 40); + } + } else if (Y == 26 && m_page_open && M == m_page_M) + { +// int designation_code = decode_hamming_84(data); + int display_row=-1, display_column=-1; + for (int a = 1; a < 40; a+=3) + { + int val; + if ((val=decode_hamming_2418(data+a)) >= 0) + { + unsigned char addr = val & 0x3F; + unsigned char mode = (val >> 6) & 0x1F; + unsigned char data = (val >> 11) & 0x7F; + if (addr == 0x3f && mode == 0x1f) // termination marker + break; + if (addr >= 40) + { + if (mode == 4) + { + display_row = addr - 40; + continue; + } + else + eDebugNoNewLine("ignore unimplemented: "); + } + else //0..39 means column 0..39 + { + if (display_row != -1) + { + display_column = addr; +// eDebugNoNewLine("PosX(%d) ", display_column); +// eDebugNoNewLine("PosY(%d) ", display_row); + if (mode > 15) //char from G0 set w/ diacr. + { + unsigned int ch=data; + if (!mode&0xF) + { + if (data == 0x2A) + ch = '@'; + } + else + { + if (ch > 96 && ch < 123) + ch = diacr_lower_cmap[(ch-97)*15+(mode&0xF)-1]; + else if (ch > 64 && ch < 91) + ch = diacr_upper_cmap[(ch-65)*15+(mode&0xF)-1]; + } + if (ch) + m_modifications[(display_row<<16)|display_column] = ch ? ch : data; + else /* when data is 0 we set the diacr. mark later on the existing character .. + this isn't described in the EN300706.. but i have seen this on "Das Erste" */ + m_modifications[(display_row<<16)|display_column] = (mode&0xF); +// eDebug("char(%04x) w/ diacr. mark", ch); + continue; + } + else if (mode == 15) // char from G2 set + { + if (data > 0x19) + { + unsigned int ch=Latin_G2_set[data-0x20]; + m_modifications[(display_row<<16)|display_column] = ch; +// eDebug("char(%04x) from G2 set", ch); + continue; + } + else + eDebugNoNewLine("ignore G2 char < 0x20: "); + } + else + eDebugNoNewLine("ignore unimplemented: "); + } + else + eDebugNoNewLine("row is not selected.. ignore: "); + } + eDebugNoNewLine("triplet = %08x(%s) ", val, get_bits(val, 18)); + eDebugNoNewLine("address = %02x(%s) ", addr, get_bits(addr, 6)); + eDebugNoNewLine("mode = %02x(%s) ", mode, get_bits(mode, 5)); + eDebug("data = %02x(%s)", data, get_bits(data, 7)); + } + } + } else if (Y > 29) + /*eDebug("non handled packet 30, 31", Y, decode_hamming_84(data))*/; + else if (Y == 29 && M == m_page_M) + { + int designation_code = decode_hamming_84(data++); + if (designation_code == 0) // 29/0 + { + m_M29_t1 = decode_hamming_2418(data); + m_M29_t2 = decode_hamming_2418(data+3); + if ((m_M29_t1 & 0xF) == 0) // format1 + m_M29_0_valid = 1; + else + eDebug("non handled packet M/%d/0 format %d", Y, m_M29_t1 & 0xF); + } + else + eDebug("non handled packet M/%d/%d", Y, designation_code); + } + else if (m_page_open && M == m_page_M) + { + int designation_code = decode_hamming_84(data++); + if (Y == 28 && designation_code == 0) // 28/0 + { +#if 1 + m_X28_t1 = decode_hamming_2418(data); + m_X28_t2 = decode_hamming_2418(data+3); + if ((m_X28_t1 & 0xF) == 0) // format1 + m_X28_0_valid = 1; + else + eDebug("non handled packet X/%d/0 format %d", Y, m_X28_t1 & 0xF); +#else + int i=0; + for (; i < 39; i+=3) + { + int tripletX = decode_hamming_2418(data+i); + if (tripletX >= 0) + { + if (i == 0) + { + if ((m_X28_t1 & 0xF) == 0) // format1 + m_X28_0_valid = 1; + m_X28_t1 = tripletX; + } + else if (i == 1) + m_X28_t2 = tripletX; + + char *c = get_bits(tripletX, 18); + int x=0; + for (; x < 18; ++x) + eDebugNoNewLine("%c", c[x]); + eDebug(""); + } + else + eDebug("decode_hamming_2418 failed!\n"); + data += 3; + } +#endif + } + else + eDebug("non handled packet X/%d/%d", Y, designation_code); } } } @@ -159,69 +467,185 @@ int eDVBTeletextParser::start(int pid) m_page_open = 0; if (m_pes_reader) + { + m_pid = pid; return m_pes_reader->start(pid); + } else return -1; } void eDVBTeletextParser::handlePageStart() { -// if (m_C & (1<<4)) /* erase flag set */ - - /* we are always erasing the page, - even when the erase flag is not set. */ - m_subtitle_page.clear(); + if (m_C & (1<<4)) /* erase flag set */ + { + m_subtitle_page.clear(); + m_modifications.clear(); + m_X28_0_valid = 0; +// eDebug("erase page!"); + } +// else +// eDebug("no erase flag set!"); } void eDVBTeletextParser::handleLine(unsigned char *data, int len) { +/* // hexdump + for (int i=0; i> 7) & 0xF]; + nat_subset_2 = NationalOptionSubsetsLookup[((m_X28_t1 >> 14) & 0xF) | ((m_X28_t2 & 7) << 4)]; +// eDebug("X/28/0 nat_subset %d, nat_subset2 %d", nat_subset, nat_subset_2); + } + else if (m_M29_0_valid) + { + nat_subset = NationalOptionSubsetsLookup[(m_M29_t1 >> 7) & 0xF]; + nat_subset_2 = NationalOptionSubsetsLookup[((m_M29_t1 >> 14) & 0xF) | ((m_M29_t2 & 7) << 4)]; +// eDebug("M/29/0 nat_subset %d, nat_subset2 %d", nat_subset, nat_subset_2); + } +/* else + eDebug("nat_opts = %d, nat_subset = %d, C121314 = %d%d%d", + nat_opts, nat_subset, + (m_C & (1<<12))?1:0, + (m_C & (1<<13))?1:0, + (m_C & (1<<14))?1:0);*/ + +// eDebug("handle subtitle line: %d len", len); for (int i=0; i::iterator it = m_modifications.find((m_Y<<16)|i); + + if (it != m_modifications.end()) + { + unsigned int utf8_code = it->second; +// eDebugNoNewLine("%c[%d]", b, b); + if (utf8_code < 0x10) + { + int mode = utf8_code; + if (b > 96 && b < 123) + utf8_code = diacr_lower_cmap[(b-97)*15+mode-1]; + else if (b > 64 && b < 91) + utf8_code = diacr_upper_cmap[(b-65)*15+mode-1]; + } + if (utf8_code > 0xFFFFFF) + out[outidx++]=(utf8_code&0xFF000000)>>24; + if (utf8_code > 0xFFFF) + out[outidx++]=(utf8_code&0xFF0000)>>16; + if (utf8_code > 0xFF) + out[outidx++]=(utf8_code&0xFF00)>>8; + if (utf8_code) + out[outidx++]=utf8_code&0xFF; + m_modifications.erase(it); + continue; + } + if (b < 0x10) /* spacing attribute */ { if (b < 8) /* colors */ { if (b != color) /* new color is split into a new string */ { - if (color != -1) - addSubtitleString(color, text); - text = ""; + addSubtitleString(color, std::string((const char*)out, outidx)); + outidx = 0; color = b; } } + else if (b == 0xd) + m_double_height = m_Y + 1; + else if (b == 0xa) // close box + m_box_open=0; + else if (b == 0xb) // open box + ++m_box_open; + else + eDebug("[ignore %x]", b); /* ignore other attributes */ - } else + } else if (m_box_open>1) { +// eDebugNoNewLine("%c(%d)", b, b); /* no more than one whitespace, only printable chars */ if (((!last_was_white) || (b != ' ')) && (b >= 0x20)) { - text += b; + int cur_nat_subset = second_G0_set ? nat_subset_2 : nat_subset; + + unsigned char offs = NationalReplaceMap[b]; + if (offs) + { + unsigned int utf8_code = + NationalOptionSubsets[cur_nat_subset*14+offs]; + if (utf8_code > 0xFFFFFF) + out[outidx++]=(utf8_code&0xFF000000)>>24; + if (utf8_code > 0xFFFF) + out[outidx++]=(utf8_code&0xFF0000)>>16; + if (utf8_code > 0xFF) + out[outidx++]=(utf8_code&0xFF00)>>8; + out[outidx++]=utf8_code&0xFF; + } + else + out[outidx++] = b; last_was_white = b == ' '; } + else if (b == 0x1b) // ESC ... switch between default G0 and second G0 charset + second_G0_set ^= 1; } } - addSubtitleString(color, text); +// eDebug(""); + addSubtitleString(color, std::string((const char*)out, outidx)); } -void eDVBTeletextParser::handlePageEnd() +void eDVBTeletextParser::handlePageEnd(int have_pts, const pts_t &pts) { - addSubtitleString(-1, ""); /* end last line */ - sendSubtitlePage(); /* send assembled subtitle page to display */ +// eDebug("handle page end"); + addSubtitleString(-2, ""); /* end last line */ + + m_subtitle_page.m_have_pts = have_pts; + m_subtitle_page.m_pts = pts; + m_subtitle_page.m_timeout = 90000 * 20; /* 20s */ + if (m_page_X != 0) + sendSubtitlePage(); /* send assembled subtitle page to display */ } -void eDVBTeletextParser::setPage(int page) +void eDVBTeletextParser::setPageAndMagazine(int page, int magazine) { - m_page_M = (page >> 8) & 7; /* magazine to look for */ - m_page_X = page & 0xFF; /* page number */ + if (page > 0) + eDebug("enable teletext subtitle page %x%02x", magazine, page); + else + eDebug("disable teletext subtitles"); + m_M29_0_valid = 0; + m_page_M = magazine; /* magazine to look for */ + if (magazine != -1) + m_page_M &= 7; + m_page_X = page; /* page number */ + if (page != -1) + m_page_X &= 0xFF; } void eDVBTeletextParser::connectNewPage(const Slot1 &slot, ePtr &connection) @@ -229,24 +653,43 @@ void eDVBTeletextParser::connectNewPage(const Slot1