From b68a086698c380111dfd01ff2bd87c1af6106e16 Mon Sep 17 00:00:00 2001 From: Anshul Maheshwari Date: Sat, 13 Jun 2015 19:09:31 +0530 Subject: [PATCH] remove dead code --- src/lib_ccx/telxcc.c | 739 +++++++++++++++---------------------------- 1 file changed, 258 insertions(+), 481 deletions(-) diff --git a/src/lib_ccx/telxcc.c b/src/lib_ccx/telxcc.c index 2b642620..e254d2b1 100644 --- a/src/lib_ccx/telxcc.c +++ b/src/lib_ccx/telxcc.c @@ -33,13 +33,6 @@ Werner Brückner -- Teletext in digital television #include "hamming.h" #include "teletext.h" #include -#ifdef I18N -#include -#include -#define _(STRING) gettext(STRING) -#endif - -#define TELXCC_VERSION "2.4.4" #ifdef __MINGW32__ // switch stdin and all normal files into binary mode -- needed for Windows @@ -54,55 +47,8 @@ int _CRT_fmode = _O_BINARY; #include #endif -// size of a TS packet in bytes -#define TS_PACKET_SIZE 188 - -// size of a TS packet payload in bytes -#define TS_PACKET_PAYLOAD_SIZE (TS_PACKET_SIZE - 4) - -// size of a packet payload buffer -#define PAYLOAD_BUFFER_SIZE 4096 - -typedef struct { - uint8_t sync; - uint8_t transport_error; - uint8_t payload_unit_start; - uint8_t transport_priority; - uint16_t pid; - uint8_t scrambling_control; - uint8_t adaptation_field_exists; - uint8_t continuity_counter; -} ts_packet_t; - -typedef struct { - uint16_t program_num; - uint16_t program_pid; -} pat_section_t; - -typedef struct { - uint8_t pointer_field; - uint8_t table_id; - uint16_t section_length; - uint8_t current_next_indicator; -} pat_t; - -typedef struct { - uint8_t ccx_stream_type; - uint16_t elementary_pid; - uint16_t es_info_length; -} pmt_program_descriptor_t; - -typedef struct { - uint8_t pointer_field; - uint8_t table_id; - uint16_t section_length; - uint16_t program_num; - uint8_t current_next_indicator; - uint16_t pcr_pid; - uint16_t program_info_length; -} pmt_t; - -typedef enum { +typedef enum +{ DATA_UNIT_EBU_TELETEXT_NONSUBTITLE = 0x02, DATA_UNIT_EBU_TELETEXT_SUBTITLE = 0x03, DATA_UNIT_EBU_TELETEXT_INVERTED = 0x0c, @@ -110,7 +56,8 @@ typedef enum { DATA_UNIT_CLOSED_CAPTIONS = 0xc5 } data_unit_t; -typedef enum { +typedef enum +{ TRANSMISSION_MODE_PARALLEL = 0, TRANSMISSION_MODE_SERIAL = 1 } transmission_mode_t; @@ -273,7 +220,8 @@ void page_buffer_add_char (char c) } // ETS 300 706, chapter 8.2 -uint8_t unham_8_4(uint8_t a) { +uint8_t unham_8_4(uint8_t a) +{ uint8_t r = UNHAM_8_4[a]; if (r == 0xff) { dbg_print (CCX_DMT_TELETEXT, "- Unrecoverable data error; UNHAM8/4(%02x)\n", a); @@ -282,7 +230,8 @@ uint8_t unham_8_4(uint8_t a) { } // ETS 300 706, chapter 8.3 -uint32_t unham_24_18(uint32_t a) { +uint32_t unham_24_18(uint32_t a) +{ uint8_t test = 0; //Tests A-F correspond to bits 0-6 respectively in 'test'. @@ -290,9 +239,11 @@ uint32_t unham_24_18(uint32_t a) { //Only parity bit is tested for bit 24 test ^= ((a >> 23) & 0x01) * 32; - if ((test & 0x1f) != 0x1f) { + if ((test & 0x1f) != 0x1f) + { //Not all tests A-E correct - if ((test & 0x20) == 0x20) { + if ((test & 0x20) == 0x20) + { //F correct: Double error return 0xffffffff; } @@ -303,14 +254,19 @@ uint32_t unham_24_18(uint32_t a) { return (a & 0x000004) >> 2 | (a & 0x000070) >> 3 | (a & 0x007f00) >> 4 | (a & 0x7f0000) >> 5; } -void remap_g0_charset(uint8_t c) { - if (c != primary_charset.current) { +void remap_g0_charset(uint8_t c) +{ + if (c != primary_charset.current) + { uint8_t m = G0_LATIN_NATIONAL_SUBSETS_MAP[c]; - if (m == 0xff) { + if (m == 0xff) + { fprintf(stderr, "- G0 Latin National Subset ID 0x%1x.%1x is not implemented\n", (c >> 3), (c & 0x7)); } - else { - for (uint8_t j = 0; j < 13; j++) G0[LATIN][G0_LATIN_NATIONAL_SUBSETS_POSITIONS[j]] = G0_LATIN_NATIONAL_SUBSETS[m].characters[j]; + else + { + for (uint8_t j = 0; j < 13; j++) + G0[LATIN][G0_LATIN_NATIONAL_SUBSETS_POSITIONS[j]] = G0_LATIN_NATIONAL_SUBSETS[m].characters[j]; VERBOSE_ONLY fprintf(stderr, "- Using G0 Latin National Subset ID 0x%1x.%1x (%s)\n", (c >> 3), (c & 0x7), G0_LATIN_NATIONAL_SUBSETS[m].language); primary_charset.current = c; } @@ -320,18 +276,22 @@ void remap_g0_charset(uint8_t c) { // wide char (16 bits) to utf-8 conversion -void ucs2_to_utf8(char *r, uint16_t ch) { - if (ch < 0x80) { +void ucs2_to_utf8(char *r, uint16_t ch) +{ + if (ch < 0x80) + { r[0] = ch & 0x7f; r[1] = 0; r[2] = 0; } - else if (ch < 0x800) { + else if (ch < 0x800) + { r[0] = (ch >> 6) | 0xc0; r[1] = (ch & 0x3f) | 0x80; r[2] = 0; } - else { + else + { r[0] = (ch >> 12) | 0xe0; r[1] = ((ch >> 6) & 0x3f) | 0x80; r[2] = (ch & 0x3f) | 0x80; @@ -342,13 +302,15 @@ void ucs2_to_utf8(char *r, uint16_t ch) { // check parity and translate any reasonable teletext character into ucs2 uint16_t telx_to_ucs2(uint8_t c) { - if (PARITY_8[c] == 0) { + if (PARITY_8[c] == 0) + { dbg_print (CCX_DMT_TELETEXT, "- Unrecoverable data error; PARITY(%02x)\n", c); return 0x20; } uint16_t r = c & 0x7f; - if (r >= 0x20) r = G0[LATIN][r - 0x20]; + if (r >= 0x20) + r = G0[LATIN][r - 0x20]; return r; } @@ -363,7 +325,8 @@ void telxcc_dump_prev_page (struct lib_ccx_ctx *ctx) if (!page_buffer_prev) return; - if (tlt_config.transcript_settings->showStartTime){ + if (tlt_config.transcript_settings->showStartTime) + { millis_to_date(prev_show_timestamp, c_temp1, tlt_config.date_format, tlt_config.millis_separator); // Note: Delay not added here because it was already accounted for fdprintf(ctx->wbout1.fh, "%s|", c_temp1); } @@ -372,17 +335,21 @@ void telxcc_dump_prev_page (struct lib_ccx_ctx *ctx) millis_to_date (prev_hide_timestamp, c_temp2, tlt_config.date_format, tlt_config.millis_separator); fdprintf(ctx->wbout1.fh,"%s|",c_temp2); } - if (tlt_config.transcript_settings->showCC){ + if (tlt_config.transcript_settings->showCC) + { fdprintf(ctx->wbout1.fh, "%.3u|", bcd_page_to_int(tlt_config.page)); } - if (tlt_config.transcript_settings->showMode){ + if (tlt_config.transcript_settings->showMode) + { fdprintf(ctx->wbout1.fh, "TLT|"); } if (ctx->wbout1.fh!=-1) fdprintf(ctx->wbout1.fh, "%s",page_buffer_prev); - fdprintf(ctx->wbout1.fh,"%s",encoded_crlf); - if (page_buffer_prev) free (page_buffer_prev); - if (ucs2_buffer_prev) free (ucs2_buffer_prev); + fdprintf(ctx->wbout1.fh,"%s",encoded_crlf); + if (page_buffer_prev) + free (page_buffer_prev); + if (ucs2_buffer_prev) + free (ucs2_buffer_prev); // Switch "dump" buffers page_buffer_prev_used=page_buffer_cur_used; page_buffer_prev_size=page_buffer_cur_size; @@ -417,12 +384,14 @@ int fuzzy_memcmp (const char *c1, const char *c2, const uint64_t *ucs2_buf1, uns return res; } -void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) { - if ((tlt_config.extraction_start.set && page->hide_timestamp < tlt_config.extraction_start.time_in_ms) || - (tlt_config.extraction_end.set && page->show_timestamp > tlt_config.extraction_end.time_in_ms) || - page->hide_timestamp == 0) { - return; - } +void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) +{ + if ((tlt_config.extraction_start.set && page->hide_timestamp < tlt_config.extraction_start.time_in_ms) || + (tlt_config.extraction_end.set && page->show_timestamp > tlt_config.extraction_end.time_in_ms) || + page->hide_timestamp == 0) + { + return; + } #ifdef DEBUG for (uint8_t row = 1; row < 25; row++) { fprintf(stdout, "DEBUG[%02u]: ", row); @@ -435,9 +404,12 @@ void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) { // optimization: slicing column by column -- higher probability we could find boxed area start mark sooner uint8_t page_is_empty = YES; - for (uint8_t col = 0; col < 40; col++) { - for (uint8_t row = 1; row < 25; row++) { - if (page->text[row][col] == 0x0b) { + for (uint8_t col = 0; col < 40; col++) + { + for (uint8_t row = 1; row < 25; row++) + { + if (page->text[row][col] == 0x0b) + { page_is_empty = NO; goto page_is_empty; } @@ -454,7 +426,7 @@ void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) { int time_reported=0; ++tlt_frames_produced; char c_tempb[256]; // For buffering - uint8_t line_count = 0; + uint8_t line_count = 0; timestamp_to_srttime(page->show_timestamp, timecode_show); timecode_show[12] = 0; @@ -462,30 +434,39 @@ void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) { timecode_hide[12] = 0; // process data - for (uint8_t row = 1; row < 25; row++) { + for (uint8_t row = 1; row < 25; row++) + { // anchors for string trimming purpose uint8_t col_start = 40; uint8_t col_stop = 40; - for (int8_t col = 39; col >= 0; col--) { - if (page->text[row][col] == 0xb) { + for (int8_t col = 39; col >= 0; col--) + { + if (page->text[row][col] == 0xb) + { col_start = col; - line_count++; + line_count++; break; } } // line is empty - if (col_start > 39) continue; + if (col_start > 39) + continue; - for (uint8_t col = col_start + 1; col <= 39; col++) { - if (page->text[row][col] > 0x20) { - if (col_stop > 39) col_start = col; + for (uint8_t col = col_start + 1; col <= 39; col++) + { + if (page->text[row][col] > 0x20) + { + if (col_stop > 39) + col_start = col; col_stop = col; } - if (page->text[row][col] == 0xa) break; + if (page->text[row][col] == 0xa) + break; } // line is empty - if (col_stop > 39) continue; + if (col_stop > 39) + continue; // ETS 300 706, chapter 12.2: Alpha White ("Set-After") - Start-of-row default condition. // used for colour changes _before_ start box mark @@ -494,18 +475,20 @@ void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) { uint8_t foreground_color = 0x7; uint8_t font_tag_opened = NO; - if (line_count > 1) { - switch (tlt_config.write_format) { - case CCX_OF_TRANSCRIPT: - page_buffer_add_string(" "); - break; - case CCX_OF_SMPTETT: - page_buffer_add_string("
"); - break; - default: - page_buffer_add_string((const char *) encoded_crlf); - } - } + if (line_count > 1) + { + switch (tlt_config.write_format) + { + case CCX_OF_TRANSCRIPT: + page_buffer_add_string(" "); + break; + case CCX_OF_SMPTETT: + page_buffer_add_string("
"); + break; + default: + page_buffer_add_string((const char *) encoded_crlf); + } + } if (tlt_config.gui_mode_reports) { @@ -518,24 +501,27 @@ void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) { timecode_show_mmss[5]=0; timecode_hide_mmss[5]=0; // Note, only MM:SS here as we need to save space in the preview window - fprintf (stderr, "%s#%s#", - timecode_show_mmss, timecode_hide_mmss); + fprintf (stderr, "%s#%s#",timecode_show_mmss, timecode_hide_mmss); time_reported=1; } else fprintf (stderr, "##"); } - for (uint8_t col = 0; col <= col_stop; col++) { + for (uint8_t col = 0; col <= col_stop; col++) + { // v is just a shortcut uint16_t v = page->text[row][col]; - if (col < col_start) { + if (col < col_start) + { if (v <= 0x7) foreground_color = (uint8_t) v; } - if (col == col_start) { - if ((foreground_color != 0x7) && !tlt_config.nofontcolor) { + if (col == col_start) + { + if ((foreground_color != 0x7) && !tlt_config.nofontcolor) + { sprintf (c_tempb, "", TTXT_COLOURS[foreground_color]); page_buffer_add_string (c_tempb); // if (ctx->wbout1.fh!=-1) fdprintf(ctx->wbout1.fh, "", TTXT_COLOURS[foreground_color]); @@ -543,12 +529,16 @@ void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) { } } - if (col >= col_start) { - if (v <= 0x7) { + if (col >= col_start) + { + if (v <= 0x7) + { // ETS 300 706, chapter 12.2: Unless operating in "Hold Mosaics" mode, // each character space occupied by a spacing attribute is displayed as a SPACE. - if (!tlt_config.nofontcolor) { - if (font_tag_opened == YES) { + if (!tlt_config.nofontcolor) + { + if (font_tag_opened == YES) + { page_buffer_add_string (""); // if (ctx->wbout1.fh!=-1) fdprintf(ctx->wbout1.fh, " "); font_tag_opened = NO; @@ -556,38 +546,45 @@ void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) { // black is considered as white for telxcc purpose // telxcc writes tags only when needed - if ((v > 0x0) && (v < 0x7)) { + if ((v > 0x0) && (v < 0x7)) + { sprintf (c_tempb, "", TTXT_COLOURS[v]); page_buffer_add_string (c_tempb); // if (ctx->wbout1.fh!=-1) fdprintf(ctx->wbout1.fh, "", TTXT_COLOURS[v]); font_tag_opened = YES; } } - else v = 0x20; + else + v = 0x20; } - if (v >= 0x20) { + if (v >= 0x20) + { ucs2_to_utf8(u, v); uint64_t ucs2_char=(u[0]<<24) | (u[1]<<16) | (u[2]<<8) | u[3]; ucs2_buffer_add_char(ucs2_char); } - if (v >= 0x20) { - // translate some chars into entities, if in colour mode - if (!tlt_config.nofontcolor) { - for (uint8_t i = 0; i < array_length(ENTITIES); i++) - if (v == ENTITIES[i].character) { - //if (ctx->wbout1.fh!=-1) fdprintf(ctx->wbout1.fh, "%s", ENTITIES[i].entity); - page_buffer_add_string (ENTITIES[i].entity); - // v < 0x20 won't be printed in next block - v = 0; - break; - } - } + if (v >= 0x20) + { + // translate some chars into entities, if in colour mode + if (!tlt_config.nofontcolor) + { + for (uint8_t i = 0; i < array_length(ENTITIES); i++) + if (v == ENTITIES[i].character) + { + //if (ctx->wbout1.fh!=-1) fdprintf(ctx->wbout1.fh, "%s", ENTITIES[i].entity); + page_buffer_add_string (ENTITIES[i].entity); + // v < 0x20 won't be printed in next block + v = 0; + break; + } + } } - if (v >= 0x20) { + if (v >= 0x20) + { //if (ctx->wbout1.fh!=-1) fdprintf(ctx->wbout1.fh, "%s", u); page_buffer_add_string (u); if (tlt_config.gui_mode_reports) // For now we just handle the easy stuff @@ -597,7 +594,8 @@ void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) { } // no tag will left opened! - if ((!tlt_config.nofontcolor) && (font_tag_opened == YES)) { + if ((!tlt_config.nofontcolor) && (font_tag_opened == YES)) + { //if (ctx->wbout1.fh!=-1) fdprintf(ctx->wbout1.fh, ""); page_buffer_add_string (""); font_tag_opened = NO; @@ -616,10 +614,10 @@ void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) { if (page_buffer_prev_used==0) prev_show_timestamp=page->show_timestamp; if (page_buffer_prev_used==0 || - fuzzy_memcmp (page_buffer_prev, page_buffer_cur, - ucs2_buffer_prev, ucs2_buffer_prev_used, - ucs2_buffer_cur, ucs2_buffer_cur_used - )==0) + fuzzy_memcmp (page_buffer_prev, page_buffer_cur, + ucs2_buffer_prev, ucs2_buffer_prev_used, + ucs2_buffer_cur, ucs2_buffer_cur_used + )==0) { // If empty previous buffer, we just start one with the // current page and do nothing. Wait until we see more. @@ -648,20 +646,20 @@ void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) { prev_show_timestamp=page->show_timestamp; } break; - case CCX_OF_SMPTETT: - if (ctx->wbout1.fh!=-1) { - timestamp_to_smptetttime(page->show_timestamp, timecode_show); - timestamp_to_smptetttime(page->hide_timestamp, timecode_hide); - fdprintf(ctx->wbout1.fh,"

%s

\n", timecode_show, timecode_hide, page_buffer_cur); - } - break; + case CCX_OF_SMPTETT: + if (ctx->wbout1.fh!=-1) { + timestamp_to_smptetttime(page->show_timestamp, timecode_show); + timestamp_to_smptetttime(page->hide_timestamp, timecode_hide); + fdprintf(ctx->wbout1.fh,"

%s

\n", timecode_show, timecode_hide, page_buffer_cur); + } + break; default: // Yes, this means everything else is .srt for now - page_buffer_add_string ((const char *) encoded_crlf); + page_buffer_add_string ((const char *) encoded_crlf); page_buffer_add_string((const char *) encoded_crlf); - if (ctx->wbout1.fh!=-1) { - fdprintf(ctx->wbout1.fh,"%"PRIu32"%s%s --> %s%s", tlt_frames_produced, encoded_crlf, timecode_show, timecode_hide, encoded_crlf); - fdprintf(ctx->wbout1.fh, "%s",page_buffer_cur); - } + if (ctx->wbout1.fh!=-1) { + fdprintf(ctx->wbout1.fh,"%"PRIu32"%s%s --> %s%s", tlt_frames_produced, encoded_crlf, timecode_show, timecode_hide, encoded_crlf); + fdprintf(ctx->wbout1.fh, "%s",page_buffer_cur); + } } // Also update GUI... @@ -673,7 +671,8 @@ void process_page(struct lib_ccx_ctx *ctx, teletext_page_t *page) { fflush (stderr); } -void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, teletext_packet_payload_t *packet, uint64_t timestamp) { +void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, teletext_packet_payload_t *packet, uint64_t timestamp) +{ // variable names conform to ETS 300 706, chapter 7.1.2 uint8_t address, m, y, designation_code; address = (unham_8_4(packet->address[1]) << 4) | unham_8_4(packet->address[0]); @@ -682,7 +681,8 @@ void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, tele y = (address >> 3) & 0x1f; designation_code = (y > 25) ? unham_8_4(packet->data[0]) : 0x00; - if (y == 0) { + if (y == 0) + { // CC map uint8_t i = (unham_8_4(packet->data[1]) << 4) | unham_8_4(packet->data[0]); uint8_t flag_subtitle = (unham_8_4(packet->data[5]) & 0x08) >> 3; @@ -703,7 +703,8 @@ void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, tele mprint ("\rNotice: Teletext page with possible subtitles detected: %03d\n",thisp); } } - if ((tlt_config.page == 0) && (flag_subtitle == YES) && (i < 0xff)) { + if ((tlt_config.page == 0) && (flag_subtitle == YES) && (i < 0xff)) + { tlt_config.page = (m << 8) | (unham_8_4(packet->data[1]) << 4) | unham_8_4(packet->data[0]); mprint ("- No teletext page specified, first received suitable page is %03x, not guaranteed\n", tlt_config.page); } @@ -728,9 +729,9 @@ void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, tele if ((transmission_mode == TRANSMISSION_MODE_PARALLEL) && (data_unit_id != DATA_UNIT_EBU_TELETEXT_SUBTITLE)) return; if ((receiving_data == YES) && ( - ((transmission_mode == TRANSMISSION_MODE_SERIAL) && (PAGE(page_number) != PAGE(tlt_config.page))) || - ((transmission_mode == TRANSMISSION_MODE_PARALLEL) && (PAGE(page_number) != PAGE(tlt_config.page)) && (m == MAGAZINE(tlt_config.page))) - )) { + ((transmission_mode == TRANSMISSION_MODE_SERIAL) && (PAGE(page_number) != PAGE(tlt_config.page))) || + ((transmission_mode == TRANSMISSION_MODE_PARALLEL) && (PAGE(page_number) != PAGE(tlt_config.page)) && (m == MAGAZINE(tlt_config.page))))) + { receiving_data = NO; return; } @@ -739,12 +740,14 @@ void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, tele if (page_number != tlt_config.page) return; // Now we have the begining of page transmission; if there is page_buffer pending, process it - if (page_buffer.tainted == YES) { + if (page_buffer.tainted == YES) + { // it would be nice, if subtitle hides on previous video frame, so we contract 40 ms (1 frame @25 fps) page_buffer.hide_timestamp = timestamp - 40; - if (page_buffer.hide_timestamp > timestamp) { - page_buffer.hide_timestamp = 0; - } + if (page_buffer.hide_timestamp > timestamp) + { + page_buffer.hide_timestamp = 0; + } process_page(ctx, &page_buffer); } @@ -768,7 +771,8 @@ void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, tele } */ } - else if ((m == MAGAZINE(tlt_config.page)) && (y >= 1) && (y <= 23) && (receiving_data == YES)) { + else if ((m == MAGAZINE(tlt_config.page)) && (y >= 1) && (y <= 23) && (receiving_data == YES)) + { // ETS 300 706, chapter 9.4.1: Packets X/26 at presentation Levels 1.5, 2.5, 3.5 are used for addressing // a character location and overwriting the existing character defined on the Level 1 page // ETS 300 706, annex B.2.2: Packets with Y = 26 shall be transmitted before any packets with Y = 1 to Y = 25; @@ -777,7 +781,8 @@ void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, tele for (uint8_t i = 0; i < 40; i++) if (page_buffer.text[y][i] == 0x00) page_buffer.text[y][i] = telx_to_ucs2(packet->data[i]); page_buffer.tainted = YES; } - else if ((m == MAGAZINE(tlt_config.page)) && (y == 26) && (receiving_data == YES)) { + else if ((m == MAGAZINE(tlt_config.page)) && (y == 26) && (receiving_data == YES)) + { // ETS 300 706, chapter 12.3.2: X/26 definition uint8_t x26_row = 0; uint8_t x26_col = 0; @@ -785,13 +790,15 @@ void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, tele uint32_t triplets[13] = { 0 }; for (uint8_t i = 1, j = 0; i < 40; i += 3, j++) triplets[j] = unham_24_18((packet->data[i + 2] << 16) | (packet->data[i + 1] << 8) | packet->data[i]); - for (uint8_t j = 0; j < 13; j++) { + for (uint8_t j = 0; j < 13; j++) + { uint8_t data; uint8_t mode; uint8_t address; uint8_t row_address_group; // invalid data (HAM24/18 uncorrectable error detected), skip group - if (triplets[j] == 0xffffffff) { + if (triplets[j] == 0xffffffff) + { dbg_print (CCX_DMT_TELETEXT, "- Unrecoverable data error; UNHAM24/18()=%04x\n", triplets[j]); continue; } @@ -802,7 +809,8 @@ void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, tele row_address_group = (address >= 40) && (address <= 63); // ETS 300 706, chapter 12.3.1, table 27: set active position - if ((mode == 0x04) && (row_address_group == YES)) { + if ((mode == 0x04) && (row_address_group == YES)) + { x26_row = address - 40; if (x26_row == 0) x26_row = 24; x26_col = 0; @@ -812,13 +820,15 @@ void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, tele if ((mode >= 0x11) && (mode <= 0x1f) && (row_address_group == YES)) break; // ETS 300 706, chapter 12.3.1, table 27: character from G2 set - if ((mode == 0x0f) && (row_address_group == NO)) { + if ((mode == 0x0f) && (row_address_group == NO)) + { x26_col = address; if (data > 31) page_buffer.text[x26_row][x26_col] = G2[0][data - 0x20]; } // ETS 300 706, chapter 12.3.1, table 27: G0 character with diacritical mark - if ((mode >= 0x11) && (mode <= 0x1f) && (row_address_group == NO)) { + if ((mode >= 0x11) && (mode <= 0x1f) && (row_address_group == NO)) + { x26_col = address; // A - Z @@ -830,63 +840,78 @@ void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, tele } } } - else if ((m == MAGAZINE(tlt_config.page)) && (y == 28) && (receiving_data == YES)) { + else if ((m == MAGAZINE(tlt_config.page)) && (y == 28) && (receiving_data == YES)) + { // TODO: // ETS 300 706, chapter 9.4.7: Packet X/28/4 // Where packets 28/0 and 28/4 are both transmitted as part of a page, packet 28/0 takes precedence over 28/4 for all but the colour map entry coding. - if ((designation_code == 0) || (designation_code == 4)) { + if ((designation_code == 0) || (designation_code == 4)) + { // ETS 300 706, chapter 9.4.2: Packet X/28/0 Format 1 // ETS 300 706, chapter 9.4.7: Packet X/28/4 uint32_t triplet0 = unham_24_18((packet->data[3] << 16) | (packet->data[2] << 8) | packet->data[1]); - if (triplet0 == 0xffffffff) { + if (triplet0 == 0xffffffff) + { // invalid data (HAM24/18 uncorrectable error detected), skip group dbg_print (CCX_DMT_TELETEXT, "! Unrecoverable data error; UNHAM24/18()=%04x\n", triplet0); } - else { + else + { // ETS 300 706, chapter 9.4.2: Packet X/28/0 Format 1 only - if ((triplet0 & 0x0f) == 0x00) { + if ((triplet0 & 0x0f) == 0x00) + { primary_charset.g0_x28 = (triplet0 & 0x3f80) >> 7; remap_g0_charset(primary_charset.g0_x28); } } } } - else if ((m == MAGAZINE(tlt_config.page)) && (y == 29)) { + else if ((m == MAGAZINE(tlt_config.page)) && (y == 29)) + { // TODO: // ETS 300 706, chapter 9.5.1 Packet M/29/0 // Where M/29/0 and M/29/4 are transmitted for the same magazine, M/29/0 takes precedence over M/29/4. - if ((designation_code == 0) || (designation_code == 4)) { + if ((designation_code == 0) || (designation_code == 4)) + { // ETS 300 706, chapter 9.5.1: Packet M/29/0 // ETS 300 706, chapter 9.5.3: Packet M/29/4 uint32_t triplet0 = unham_24_18((packet->data[3] << 16) | (packet->data[2] << 8) | packet->data[1]); - if (triplet0 == 0xffffffff) { + if (triplet0 == 0xffffffff) + { // invalid data (HAM24/18 uncorrectable error detected), skip group dbg_print (CCX_DMT_TELETEXT, "! Unrecoverable data error; UNHAM24/18()=%04x\n", triplet0); } - else { + else + { // ETS 300 706, table 11: Coding of Packet M/29/0 // ETS 300 706, table 13: Coding of Packet M/29/4 - if ((triplet0 & 0xff) == 0x00) { + if ((triplet0 & 0xff) == 0x00) + { primary_charset.g0_m29 = (triplet0 & 0x3f80) >> 7; // X/28 takes precedence over M/29 - if (primary_charset.g0_x28 == UNDEF) { + if (primary_charset.g0_x28 == UNDEF) + { remap_g0_charset(primary_charset.g0_m29); } } } } } - else if ((m == 8) && (y == 30)) { + else if ((m == 8) && (y == 30)) + { // ETS 300 706, chapter 9.8: Broadcast Service Data Packets - if (states.programme_info_processed == NO) { + if (states.programme_info_processed == NO) + { // ETS 300 706, chapter 9.8.1: Packet 8/30 Format 1 - if (unham_8_4(packet->data[0]) < 2) { + if (unham_8_4(packet->data[0]) < 2) + { uint32_t t = 0; time_t t0; mprint ("- Programme Identification Data = "); - for (uint8_t i = 20; i < 40; i++) { + for (uint8_t i = 20; i < 40; i++) + { char u[4] = { 0, 0, 0, 0 }; uint8_t c = telx_to_ucs2(packet->data[i]); // strip any control codes from PID, eg. TVP station @@ -921,10 +946,11 @@ void process_telx_packet(struct lib_ccx_ctx *ctx, data_unit_t data_unit_id, tele dbg_print (CCX_DMT_TELETEXT, "- Transmission mode = %s\n", (transmission_mode == TRANSMISSION_MODE_SERIAL ? "serial" : "parallel")); - if (tlt_config.write_format == CCX_OF_TRANSCRIPT && tlt_config.date_format==ODF_DATE && !tlt_config.noautotimeref) { - mprint ("- Broadcast Service Data Packet received, resetting UTC referential value to %s", ctime(&t0)); - utc_refvalue = t; - states.pts_initialized = NO; + if (tlt_config.write_format == CCX_OF_TRANSCRIPT && tlt_config.date_format==ODF_DATE && !tlt_config.noautotimeref) + { + mprint ("- Broadcast Service Data Packet received, resetting UTC referential value to %s", ctime(&t0)); + utc_refvalue = t; + states.pts_initialized = NO; } states.programme_info_processed = YES; @@ -948,11 +974,13 @@ void tlt_read_rcwt(struct lib_ccx_ctx *ctx) if (buf == NULL) fatal(EXIT_NOT_ENOUGH_MEMORY, "Not enough memory"); - while(1) { + while(1) + { buffered_read(ctx, buf, len); ctx->past += result; - if (result != len) { + if (result != len) + { end_of_file = 1; free(buf); return; @@ -1007,28 +1035,35 @@ void tlt_process_pes_packet(struct lib_ccx_ctx *ctx, uint8_t *buffer, uint16_t s optional_pes_header_included = NO; optional_pes_header_length = 0; // optional PES header marker bits (10.. ....) - if ((buffer[6] & 0xc0) == 0x80) { + if ((buffer[6] & 0xc0) == 0x80) + { optional_pes_header_included = YES; optional_pes_header_length = buffer[8]; } // should we use PTS or PCR? - if (using_pts == UNDEF) { - if ((optional_pes_header_included == YES) && ((buffer[7] & 0x80) > 0)) { + if (using_pts == UNDEF) + { + if ((optional_pes_header_included == YES) && ((buffer[7] & 0x80) > 0)) + { using_pts = YES; dbg_print (CCX_DMT_TELETEXT, "- PID 0xbd PTS available\n"); - } else { + } + else + { using_pts = NO; dbg_print (CCX_DMT_TELETEXT, "- PID 0xbd PTS unavailable, using TS PCR\n"); } } // If there is no PTS available, use global PCR - if (using_pts == NO) { + if (using_pts == NO) + { t = ctx->global_timestamp; } // if (using_pts == NO) t = get_pts(); - else { + else + { // PTS is 33 bits wide, however, timestamp in ms fits into 32 bits nicely (PTS/90) // presentation and decoder timestamps use the 90 KHz clock, hence PTS/90 = [ms] uint64_t pts = 0; @@ -1043,35 +1078,44 @@ void tlt_process_pes_packet(struct lib_ccx_ctx *ctx, uint8_t *buffer, uint16_t s t = (uint32_t) (pts / 90); } - if (states.pts_initialized == NO) { + if (states.pts_initialized == NO) + { if (utc_refvalue == UINT64_MAX) delta = (uint64_t) (ctx->subs_delay - t); else delta = (uint64_t) (ctx->subs_delay + 1000 * utc_refvalue - t); t0 = t; states.pts_initialized = YES; - if ((using_pts == NO) && (ctx->global_timestamp == 0)) { + if ((using_pts == NO) && (ctx->global_timestamp == 0)) + { // We are using global PCR, nevertheless we still have not received valid PCR timestamp yet states.pts_initialized = NO; } } - if (t < t0) delta = last_timestamp; + if (t < t0) + delta = last_timestamp; last_timestamp = t + delta; - if (delta < 0 && last_timestamp > t) { - last_timestamp = 0; - } + if (delta < 0 && last_timestamp > t) + { + last_timestamp = 0; + } t0 = t; // skip optional PES header and process each 46-byte teletext packet i = 7; - if (optional_pes_header_included == YES) i += 3 + optional_pes_header_length; - while (i <= pes_packet_length - 6) { + if (optional_pes_header_included == YES) + i += 3 + optional_pes_header_length; + + while (i <= pes_packet_length - 6) + { uint8_t data_unit_id = buffer[i++]; uint8_t data_unit_len = buffer[i++]; - if ((data_unit_id == DATA_UNIT_EBU_TELETEXT_NONSUBTITLE) || (data_unit_id == DATA_UNIT_EBU_TELETEXT_SUBTITLE)) { + if ((data_unit_id == DATA_UNIT_EBU_TELETEXT_NONSUBTITLE) || (data_unit_id == DATA_UNIT_EBU_TELETEXT_SUBTITLE)) + { // teletext payload has always size 44 bytes - if (data_unit_len == 44) { + if (data_unit_len == 44) + { // reverse endianess (via lookup table), ETS 300 706, chapter 7.1 for (uint8_t j = 0; j < data_unit_len; j++) buffer[i + j] = REVERSE_8[buffer[i + j]]; @@ -1087,92 +1131,6 @@ void tlt_process_pes_packet(struct lib_ccx_ctx *ctx, uint8_t *buffer, uint16_t s } } -void analyze_pat(uint8_t *buffer, uint8_t size) { - pat_t pat = { 0 }; - if (size < 7) return; - pat.pointer_field = buffer[0]; - -//! -if (pat.pointer_field > 0) { - fatal(CCX_COMMON_EXIT_UNSUPPORTED, "! pat.pointer_field > 0 (0x%02x)\n\n", pat.pointer_field); -} - - pat.table_id = buffer[1]; - if (pat.table_id == 0x00) { - pat.section_length = ((buffer[2] & 0x03) << 8) | buffer[3]; - pat.current_next_indicator = buffer[6] & 0x01; - // already valid PAT - if (pat.current_next_indicator == 1) { - uint16_t i = 9; - while ((i < 9 + (pat.section_length - 5 - 4)) && (i < size)) { - pat_section_t section = { 0 }; - section.program_num = (buffer[i] << 8) | buffer[i + 1]; - section.program_pid = ((buffer[i + 2] & 0x1f) << 8) | buffer[i + 3]; - - if (in_array(pmt_map, pmt_map_count, section.program_pid) == NO) { - if (pmt_map_count < TS_PMT_MAP_SIZE) { - pmt_map[pmt_map_count++] = section.program_pid; -#ifdef DEBUG - fprintf(stderr, "- Found PMT for SID %"PRIu16" (0x%x)\n", section.program_num, section.program_num); -#endif - } - } - - i += 4; - } - } - } -} - -void analyze_pmt(uint8_t *buffer, uint8_t size) { - pmt_t pmt = { 0 }; - if (size < 7) return; - - pmt.pointer_field = buffer[0]; - -//! -if (pmt.pointer_field > 0) { - fatal(CCX_COMMON_EXIT_UNSUPPORTED, "! pmt.pointer_field > 0 (0x%02x)\n\n", pmt.pointer_field); -} - - pmt.table_id = buffer[1]; - if (pmt.table_id == 0x02) { - pmt.section_length = ((buffer[2] & 0x03) << 8) | buffer[3]; - pmt.program_num = (buffer[4] << 8) | buffer[5]; - pmt.current_next_indicator = buffer[6] & 0x01; - pmt.pcr_pid = ((buffer[9] & 0x1f) << 8) | buffer[10]; - pmt.program_info_length = ((buffer[11] & 0x03) << 8) | buffer[12]; - // already valid PMT - if (pmt.current_next_indicator == 1) { - uint16_t i = 13 + pmt.program_info_length; - while ((i < 13 + (pmt.program_info_length + pmt.section_length - 4 - 9)) && (i < size)) { - uint8_t descriptor_tag; - pmt_program_descriptor_t desc = { 0 }; - desc.ccx_stream_type = buffer[i]; - desc.elementary_pid = ((buffer[i + 1] & 0x1f) << 8) | buffer[i + 2]; - desc.es_info_length = ((buffer[i + 3] & 0x03) << 8) | buffer[i + 4]; - - descriptor_tag = buffer[i + 5]; - // descriptor_tag: 0x45 = VBI_data_descriptor, 0x46 = VBI_teletext_descriptor, 0x56 = teletext_descriptor - if ((desc.ccx_stream_type == 0x06) && ((descriptor_tag == 0x45) || (descriptor_tag == 0x46) || (descriptor_tag == 0x56))) { - if (in_array(pmt_ttxt_map, pmt_ttxt_map_count, desc.elementary_pid) == NO) { - if (pmt_ttxt_map_count < TS_PMT_TTXT_MAP_SIZE) { - pmt_ttxt_map[pmt_ttxt_map_count++] = desc.elementary_pid; - if (tlt_config.tid == 0) tlt_config.tid = desc.elementary_pid; - mprint ("- Found VBI/teletext stream ID %"PRIu16" (0x%x) for SID %"PRIu16" (0x%x)\n", desc.elementary_pid, desc.elementary_pid, pmt.program_num, pmt.program_num); - } - } - } - - i += 5 + desc.es_info_length; - } - } - } -} - -// graceful exit support -uint8_t exit_request = NO; - // Called only when teletext is detected or forced and it's going to be used for extraction. void telxcc_init(struct lib_ccx_ctx *ctx) { @@ -1181,7 +1139,7 @@ void telxcc_init(struct lib_ccx_ctx *ctx) telxcc_inited=1; if (ctx->wbout1.fh!=-1 && tlt_config.encoding!=CCX_ENC_UTF_8) // If encoding it UTF8 then this was already done fdprintf(ctx->wbout1.fh, "\xef\xbb\xbf"); - memset (seen_sub_page,0,MAX_TLT_PAGES*sizeof (short int)); + memset (seen_sub_page, 0, MAX_TLT_PAGES * sizeof(short int)); } } @@ -1191,7 +1149,8 @@ void telxcc_close(struct lib_ccx_ctx *ctx) if (telxcc_inited && tlt_config.write_format != CCX_OF_RCWT) { // output any pending close caption - if (page_buffer.tainted == YES) { + if (page_buffer.tainted == YES) + { // this time we do not subtract any frames, there will be no more frames page_buffer.hide_timestamp = last_timestamp; process_page(ctx, &page_buffer); @@ -1199,193 +1158,11 @@ void telxcc_close(struct lib_ccx_ctx *ctx) telxcc_dump_prev_page(ctx); - if ((tlt_frames_produced == 0) && (tlt_config.nonempty == YES)) { - if (ctx->wbout1.fh!=-1) fdprintf(ctx->wbout1.fh, "1\r\n00:00:00,000 --> 00:00:10,000\r\n(no closed captions available)\r\n\r\n"); + if ((tlt_frames_produced == 0) && (tlt_config.nonempty == YES)) + { + if (ctx->wbout1.fh!=-1) + fdprintf(ctx->wbout1.fh, "1\r\n00:00:00,000 --> 00:00:10,000\r\n(no closed captions available)\r\n\r\n"); tlt_frames_produced++; } } } - -#ifdef DEBUG_TELXCC -int main_telxcc (int argc, char *argv[]) { - FILE *infile; - - // TS packet buffer - uint8_t ts_buffer[TS_PACKET_SIZE] = { 0 }; - - // 255 means not set yet - uint8_t continuity_counter = 255; - - // PES packet buffer - uint8_t payload_buffer[PAYLOAD_BUFFER_SIZE] = { 0 }; - uint16_t payload_counter = 0; - -/* - // command line params parsing - for (uint8_t i = 1; i < argc; i++) { - if (strcmp(argv[i], "-h") == 0) { - fprintf(stderr, "Usage: telxcc [-h] [-v] [-p PAGE] [-t TID] [-o OFFSET] [-n] [-1] [-c]\n"); - fprintf(stderr, " STDIN transport stream\n"); - fprintf(stderr, " STDOUT subtitles in SubRip SRT file format (UTF-8 encoded)\n"); - fprintf(stderr, " -h this help text\n"); - fprintf(stderr, " -v be verbose\n"); - fprintf(stderr, " -p PAGE teletext page number carrying closed captions\n"); - fprintf(stderr, " -t TID transport stream PID of teletext data sub-stream\n"); - fprintf(stderr, " -o OFFSET subtitles offset in seconds\n"); - fprintf(stderr, " -n do not print UTF-8 BOM characters to the file\n"); - fprintf(stderr, " -1 produce at least one (dummy) frame\n"); - fprintf(stderr, " -c output colour information in font HTML tags\n"); - fprintf(stderr, "\n"); - exit(EXIT_SUCCESS); - } - else if ((strcmp(argv[i], "-t") == 0) && (argc > i + 1)) - tlt_config.tid = atoi(argv[++i]); - else if ((strcmp(argv[i], "-o") == 0) && (argc > i + 1)) - tlt_config.offset = atof(argv[++i]); - else if (strcmp(argv[i], "-n") == 0) - tlt_config.bom = NO; - else if (strcmp(argv[i], "-1") == 0) - tlt_config.nonempty = YES; - else if (strcmp(argv[i], "-c") == 0) - tlt_config.colours = YES; - else { - fprintf(stderr, "- Unknown option %s\n", argv[i]); - exit(EXIT_FAILURE); - } - } -*/ - - infile=fopen ("F:\\ConBackup\\Closed captions\\BrokenSamples\\RDVaughan\\uk_dvb_example.mpg","rb"); - - // full buffering -- disables flushing after CR/FL, we will flush manually whole SRT frames - // setvbuf(stdout, (char*)NULL, _IOFBF, 0); - - // print UTF-8 BOM chars - if (tlt_config.bom == YES) { - if (ctx->wbout1.fh!=-1) fdprintf(ctx->wbout1.fh, "\xef\xbb\xbf"); - } - // reading input - while ((exit_request == NO) && (fread(&ts_buffer, 1, TS_PACKET_SIZE, infile) == TS_PACKET_SIZE)) { - uint8_t af_discontinuity = 0; - // Transport Stream Header - // We do not use buffer to struct loading (e.g. ts_packet_t *header = (ts_packet_t *)buffer;) - // -- struct packing is platform dependant and not performing well. - ts_packet_t header = { 0 }; - header.sync = ts_buffer[0]; - header.transport_error = (ts_buffer[1] & 0x80) >> 7; - header.payload_unit_start = (ts_buffer[1] & 0x40) >> 6; - header.transport_priority = (ts_buffer[1] & 0x20) >> 5; - header.pid = ((ts_buffer[1] & 0x1f) << 8) | ts_buffer[2]; - header.scrambling_control = (ts_buffer[3] & 0xc0) >> 6; - header.adaptation_field_exists = (ts_buffer[3] & 0x20) >> 5; - header.continuity_counter = ts_buffer[3] & 0x0f; - //uint8_t ts_payload_exists = (ts_buffer[3] & 0x10) >> 4; - - if (header.adaptation_field_exists > 0) { - af_discontinuity = (ts_buffer[5] & 0x80) >> 7; - } - - // not TS packet? - if (header.sync != 0x47) - fatal (CCX_COMMON_EXIT_UNSUPPORTED, "- Invalid TS packet header\n- telxcc does not work with unaligned TS.\n\n"); - - // uncorrectable error? - if (header.transport_error > 0) { - dbg_print (CCX_DMT_TELETEXT, "- Uncorrectable TS packet error (received CC %1x)\n", header.continuity_counter); - continue; - } - - // if available, calculate current PCR - if (header.adaptation_field_exists > 0) { - // PCR in adaptation field - uint8_t af_pcr_exists = (ts_buffer[5] & 0x10) >> 4; - if (af_pcr_exists > 0) { - uint64_t pts = 0; - pts |= (ts_buffer[6] << 25); - pts |= (ts_buffer[7] << 17); - pts |= (ts_buffer[8] << 9); - pts |= (ts_buffer[9] << 1); - pts |= (ts_buffer[10] >> 7); - ctx->global_timestamp = (uint32_t) pts / 90; - pts = ((ts_buffer[10] & 0x01) << 8); - pts |= ts_buffer[11]; - ctx->global_timestamp += (uint32_t) (pts / 27000); - if (!ctx->global_timestamp_inited) - { - min_global_timestamp = ctx->global_timestamp; - ctx->global_timestamp_inited = 1; - } - } - } - - // null packet - if (header.pid == 0x1fff) continue; - - // TID not specified, autodetect via PAT/PMT - if (tlt_config.tid == 0) { - // process PAT - if (header.pid == 0x0000) { - analyze_pat(&ts_buffer[4], TS_PACKET_PAYLOAD_SIZE); - continue; - } - - // process PMT - if (in_array(pmt_map, pmt_map_count, header.pid) == YES) { - analyze_pmt(&ts_buffer[4], TS_PACKET_PAYLOAD_SIZE); - continue; - } - } - - if (tlt_config.tid == header.pid) { - // TS continuity check - if (continuity_counter == 255) continuity_counter = header.continuity_counter; - else { - if (af_discontinuity == 0) { - continuity_counter = (continuity_counter + 1) % 16; - if (header.continuity_counter != continuity_counter) { - dbg_print (CCX_DMT_TELETEXT, "- Missing TS packet, flushing pes_buffer (expected CC %1x, received CC %1x, TS discontinuity %s, TS priority %s)\n", - continuity_counter, header.continuity_counter, (af_discontinuity ? "YES" : "NO"), (header.transport_priority ? "YES" : "NO")); - payload_counter = 0; - continuity_counter = 255; - } - } - } - - // waiting for first payload_unit_start indicator - if ((header.payload_unit_start == 0) && (payload_counter == 0)) continue; - - // proceed with payload buffer - if ((header.payload_unit_start > 0) && (payload_counter > 0)) tlt_process_pes_packet(payload_buffer, payload_counter); - - // new payload frame start - if (header.payload_unit_start > 0) payload_counter = 0; - - // add payload data to buffer - if (payload_counter < (PAYLOAD_BUFFER_SIZE - TS_PACKET_PAYLOAD_SIZE)) { - memcpy(&payload_buffer[payload_counter], &ts_buffer[4], TS_PACKET_PAYLOAD_SIZE); - payload_counter += TS_PACKET_PAYLOAD_SIZE; - tlt_packet_counter++; - } - else - dbg_print (CCX_DMT_TELETEXT, "- packet payload size exceeds payload_buffer size, probably not teletext stream\n"); - } - } - - - VERBOSE_ONLY { - if (tlt_config.tid == 0) dbg_print (CCX_DMT_TELETEXT, "- No teletext PID specified, no suitable PID found in PAT/PMT tables. Please specify teletext PID via -t parameter.\n"); - if (tlt_frames_produced == 0) dbg_print (CCX_DMT_TELETEXT, "- No frames produced. CC teletext page number was probably wrong.\n"); - dbg_print (CCX_DMT_TELETEXT, "- There were some CC data carried via pages = "); - // We ignore i = 0xff, because 0xffs are teletext ending frames - for (uint16_t i = 0; i < 255; i++) - for (uint8_t j = 0; j < 8; j++) { - uint8_t v = cc_map[i] & (1 << j); - if (v > 0) fprintf(stderr, "%03x ", ((j + 1) << 8) | i); - } - fprintf(stderr, "\n"); - } - - - return EXIT_SUCCESS; -} -#endif