#include <lib/base/eerror.h>
#include <lib/dvb/teletext.h>
#include <lib/dvb/idemux.h>
+#include <lib/gdi/gpixmap.h>
+// 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, 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, 0x0000,
+};
+
+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.
+
DEFINE_REF(eDVBTeletextParser);
+ /* we asumme error free transmission! */
+static inline unsigned char decode_odd_parity(unsigned char *b)
+{
+ int i;
+ unsigned char res = 0;
+ for (i=0; i<7; ++i)
+ if (*b & (0x80 >> i))
+ res |= 1<<i;
+ return res;
+}
+
+static inline unsigned char decode_hamming_84(unsigned char *b)
+{
+ return ((*b << 3) & 8) | ((*b ) & 4) | ((*b >> 3) & 2) | ((*b >> 6) & 1);
+}
+
+static inline unsigned long decode_hamming_2418(unsigned char *b)
+{
+ 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
+
+ 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
+ setStreamID(0xBD); /* as per en 300 472 */
+
+ 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);
-
+}
+
+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)
{
- eDebug("GOT TELETEXT PACKET:");
- int i;
- for (i=0; i<16; ++i)
- eDebugNoNewLine("%02x ", pkt[i]);
- eDebug("<");
+ 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 */
+
+ p += 3; len -= 3; /* pes header */
+
+ p += 0x24; len -= 0x24; /* skip header */
+
+// eDebug("data identifier: %02x", *p);
+
+ p++; len--;
+
+ while (len > 2)
+ {
+ /*unsigned char data_unit_id = */*p++;
+ unsigned char data_unit_length = *p++;
+ len -= 2;
+
+ if (len < data_unit_length)
+ {
+ eDebug("data_unit_length > len");
+ break;
+ }
+
+ if (data_unit_length != 44)
+ {
+ /* eDebug("illegal data unit length %d", data_unit_length); */
+ break;
+ }
+
+// 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;
+
+ 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 */
+ {
+ 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 ((serial_mode || M == m_page_M) && m_page_open)
+ {
+ handlePageEnd(have_pts, pts);
+ m_page_open = 0;
+ }
+
+ 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_page_M && X == m_page_X)
+ {
+ handlePageStart();
+ m_subtitle_page.m_C = C;
+ m_subtitle_page.m_Y = Y;
+ m_page_open = 1;
+ m_box_open = 0;
+ handleLine(data + 8, 32);
+ }
+ } else if (Y < 26) // directly displayable packet
+ {
+ /* data for the selected page ? */
+ if (M == m_page_M && m_page_open)
+ {
+ m_subtitle_page.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);
+ static const unsigned char rev[16] = {
+ 0x00,0x08,0x04,0x0c,
+ 0x02,0x0a,0x06,0x0e,
+ 0x01,0x09,0x05,0x0d,
+ 0x03,0x0b,0x07,0x0f
+ };
+ int display_row=-1, display_column=-1;
+ for (int a = 1; a < 40; a+=3)
+ {
+ int val;
+ data[a] = rev[data[a] >> 4] | (rev[data[a] & 0xf] << 4);
+ data[a+1] = rev[data[a+1] >> 4] | (rev[data[a+1] & 0xf] << 4);
+ data[a+2] = rev[data[a+2] >> 4] | (rev[data[a+2] & 0xf] << 4);
+ 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];
+ }
+ m_modifications[(display_row<<16)|display_column] = ch ? ch : data;
+// 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)
+ eDebug("non handled packet M/%d/%d", Y, decode_hamming_84(data));
+ else if (m_page_open)
+ {
+ if (M == m_page_M)
+ eDebug("non handled packet X/%d/%d", Y, decode_hamming_84(data));
+ }
+ }
}
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();
+ m_modifications.clear();
+}
+
+void eDVBTeletextParser::handleLine(unsigned char *data, int len)
+{
+/* // hexdump
+ for (int i=0; i<len; ++i)
+ eDebugNoNewLine("%02x ", decode_odd_parity(data + i));
+ eDebug(""); */
+ if (!m_subtitle_page.m_Y) /* first line is page header, we don't need that. */
+ {
+ m_double_height = -1;
+ return;
+ }
+
+ if (m_double_height == m_subtitle_page.m_Y)
+ {
+ m_double_height = -1;
+ return;
+ }
+
+ int last_was_white = 1, color = 1; /* start with whitespace. start with color=white. (that's unrelated.) */
+
+ static unsigned char out[128];
+
+ int outidx = 0,
+ Gtriplet = 0,
+ nat_opts = (m_subtitle_page.m_C & (1<<14) ? 1 : 0) |
+ (m_subtitle_page.m_C & (1<<13) ? 2 : 0) |
+ (m_subtitle_page.m_C & (1<<12) ? 4 : 0),
+ nat_subset = NationalOptionSubsetsLookup[Gtriplet*8+nat_opts];
+/* eDebug("nat_opts = %d, nat_subset = %d, C121314 = %d%d%d",
+ nat_opts, nat_subset,
+ (m_subtitle_page.m_C & (1<<12))?1:0,
+ (m_subtitle_page.m_C & (1<<13))?1:0,
+ (m_subtitle_page.m_C & (1<<14))?1:0);*/
+
+// eDebug("handle subtitle line: %d len", len);
+ for (int i=0; i<len; ++i)
+ {
+ std::map<int,unsigned int>::iterator it = m_modifications.find((m_subtitle_page.m_Y<<16)|i);
+ if (it != m_modifications.end())
+ {
+ unsigned int utf8_code = it->second;
+ 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;
+ continue;
+ }
+
+ unsigned char b = decode_odd_parity(data + i);
+
+ if (b < 0x10) /* spacing attribute */
+ {
+ if (b < 8) /* colors */
+ {
+ if (b != color) /* new color is split into a new string */
+ {
+ addSubtitleString(color, std::string((const char*)out, outidx));
+ outidx = 0;
+ color = b;
+ }
+ }
+ else if (b == 0xd)
+ m_double_height = m_subtitle_page.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 if (m_box_open>1)
+ {
+ //eDebugNoNewLine("%c", b);
+ /* no more than one whitespace, only printable chars */
+ if (((!last_was_white) || (b != ' ')) && (b >= 0x20))
+ {
+ int cur_nat_subset = nat_subset;
+
+ if (b == 0x24) // workaround for currency sign.. the only on non latin1 char in G0 set
+ {
+ cur_nat_subset = 9;
+ b = 36;
+ }
+
+ 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 == ' ';
+ }
+ }
+ }
+ //eDebug("");
+ addSubtitleString(color, std::string((const char*)out, outidx));
+}
+
+void eDVBTeletextParser::handlePageEnd(int have_pts, const pts_t &pts)
+{
+// 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::setPageAndMagazine(int page, int magazine)
+{
+ if (page > 0)
+ eDebug("enable teletext subtitle page %x%02x", magazine, page);
+ else
+ eDebug("disable teletext subtitles");
+ 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<void, const eDVBTeletextSubtitlePage&> &slot, ePtr<eConnection> &connection)
+{
+ connection = new eConnection(this, m_new_subtitle_page.connect(slot));
+}
+
+void eDVBTeletextParser::addSubtitleString(int color, std::string string)
+{
+// eDebug("(%d)add subtitle string: %s, col %d", m_subtitle_page.m_Y, string.c_str(), color);
+ int force_cell = 0;
+
+ if (string.substr(0, 2) == "- ")
+ {
+ string = string.substr(2);
+ force_cell = 1;
+ }
+
+// eDebug("color %d, m_subtitle_color %d", color, m_subtitle_color);
+ gRGB rgbcol((color & 1) ? 255 : 128, (color & 2) ? 255 : 128, (color & 4) ? 255 : 128);
+ if ((color != m_subtitle_color || force_cell) && !m_subtitle_text.empty() && ((color == -2) || !string.empty()))
+ {
+// eDebug("add text |%s|: %d != %d || %d", m_subtitle_text.c_str(), color, m_subtitle_color, force_cell);
+ m_subtitle_page.m_elements.push_back(eDVBTeletextSubtitlePageElement(rgbcol, m_subtitle_text));
+ m_subtitle_text = "";
+ } else if (!m_subtitle_text.empty() && m_subtitle_text[m_subtitle_text.size()-1] != ' ')
+ m_subtitle_text += " ";
+
+ if (!string.empty())
+ {
+// eDebug("set %d as new color", color);
+ m_subtitle_color = color;
+ m_subtitle_text += string;
+ }
+}
+
+void eDVBTeletextParser::sendSubtitlePage()
+{
+// eDebug("subtitle page:");
+ bool empty=true;
+ if (empty)
+ for (unsigned int i = 0; i < m_subtitle_page.m_elements.size(); ++i)
+ if (!m_subtitle_page.m_elements[i].m_text.empty())
+ empty=false;
+ if (!empty)
+ m_new_subtitle_page(m_subtitle_page);
+}
git.cweiske.de / enigma2.git / blobdiff