diff options
Diffstat (limited to 'stream')
| -rw-r--r-- | stream/Makefile | 1 | ||||
| -rw-r--r-- | stream/tv.c | 75 | ||||
| -rw-r--r-- | stream/tv.h | 59 | ||||
| -rw-r--r-- | stream/tvi_vbi.c | 1197 | ||||
| -rw-r--r-- | stream/tvi_vbi.h | 75 |
5 files changed, 0 insertions, 1407 deletions
diff --git a/stream/Makefile b/stream/Makefile index 1ea38018fa..a5d7edcf37 100644 --- a/stream/Makefile +++ b/stream/Makefile @@ -51,7 +51,6 @@ SRCS_COMMON-$(TV) += stream_tv.c tv.c frequencies.c tvi_dummy.c SRCS_COMMON-$(TV_BSDBT848) += tvi_bsdbt848.c SRCS_COMMON-$(TV_V4L1) += tvi_v4l.c audio_in.c SRCS_COMMON-$(TV_V4L2) += tvi_v4l2.c audio_in.c -SRCS_COMMON-$(TV_TELETEXT) += tvi_vbi.c SRCS_COMMON-$(VCD) += stream_vcd.c SRCS_COMMON-$(VSTREAM) += stream_vstream.c diff --git a/stream/tv.c b/stream/tv.c index 4133d04939..dcb96f1126 100644 --- a/stream/tv.c +++ b/stream/tv.c @@ -34,10 +34,6 @@ #include "frequencies.h" -#ifdef HAVE_TV_TELETEXT -#include "tvi_vbi.h" -#endif - /* some default values */ int tv_param_audiorate = 44100; int tv_param_noaudio = 0; @@ -522,9 +518,6 @@ static demuxer_t* demux_open_tv(demuxer_t *demuxer) tv_uninit(tvh); return NULL; } -#ifdef HAVE_TV_TELETEXT - if(tvh->priv_vbi) teletext_control(tvh->priv_vbi,TVI_CONTROL_VBI_START,1); //arg must be not null -#endif funcs = tvh->functions; demuxer->priv=tvh; @@ -664,12 +657,6 @@ no_audio: static void demux_close_tv(demuxer_t *demuxer) { tvi_handle_t *tvh=(tvi_handle_t*)(demuxer->priv); -#ifdef HAVE_TV_TELETEXT - if(tvh->priv_vbi) { - teletext_uninit(tvh->priv_vbi); - tvh->priv_vbi=NULL; - } -#endif if (!tvh) return; tvh->functions->uninit(tvh->priv); demuxer->priv=NULL; @@ -701,10 +688,6 @@ tvi_handle_t *tv_begin(void) tvi_driver_list[i]->name, tvi_driver_list[i]->author, tvi_driver_list[i]->comment?tvi_driver_list[i]->comment:""); -#ifdef HAVE_TV_TELETEXT - h->priv_vbi=teletext_init(); -#endif - return h; } } @@ -790,9 +773,6 @@ int tv_set_freq(tvi_handle_t *tvh, unsigned long freq) mp_msg(MSGT_TV, MSGL_V, MSGTR_TV_CurrentFrequency, freq, (float)freq/16); } -#ifdef HAVE_TV_TELETEXT - if (tvh->priv_vbi) teletext_control(tvh->priv_vbi,TVI_CONTROL_VBI_RESET,1); //arg must be not null -#endif return(1); } @@ -952,9 +932,6 @@ int tv_step_norm(tvi_handle_t *tvh) return 0; } } -#ifdef HAVE_TV_TELETEXT - if (tvh->priv_vbi) teletext_control(tvh->priv_vbi,TVI_CONTROL_VBI_RESET,1); //arg must be not null -#endif return(1); } @@ -972,61 +949,9 @@ int tv_set_norm(tvi_handle_t *tvh, char* norm) mp_msg(MSGT_TV, MSGL_ERR, MSGTR_TV_CannotSetNorm); return 0; } -#ifdef HAVE_TV_TELETEXT - if (tvh->priv_vbi) teletext_control(tvh->priv_vbi,TVI_CONTROL_VBI_RESET,1); //arg must be not null -#endif return(1); } -#ifdef HAVE_TV_TELETEXT -int tv_teletext_control(tvi_handle_t* tvh, int control, void* arg) -{ - if (!tvh || !tvh->priv_vbi) - return TVI_CONTROL_FALSE; - - return teletext_control(tvh->priv_vbi,control,arg); -} - -int tv_teletext_add_dec(tvi_handle_t *tvh, char *dec) -{ - if(!dec) return 0; - if (teletext_control(tvh->priv_vbi, TVI_CONTROL_VBI_ADD_DEC, &dec)!= TVI_CONTROL_TRUE) - return 0; - return 1; -} - -int tv_teletext_go_link(tvi_handle_t *tvh, int linkno) -{ - if (teletext_control(tvh->priv_vbi, TVI_CONTROL_VBI_GO_LINK, &linkno)!= TVI_CONTROL_TRUE) - return 0; - return 1; -} - -void* tv_get_teletext_vbipage(tvi_handle_t *tvh) -{ - void* page = NULL; - if (teletext_control(tvh->priv_vbi, TVI_CONTROL_VBI_GET_VBIPAGE, &page)!= TVI_CONTROL_TRUE) - return NULL; - return page; -} - -char* tv_get_teletext_txtpage(tvi_handle_t *tvh) -{ - char* page = NULL; - if (teletext_control(tvh->priv_vbi, TVI_CONTROL_VBI_GET_TXTPAGE, &page)!= TVI_CONTROL_TRUE) - return NULL; - return page; -} - -tv_teletext_img_t* tv_get_teletext_imgpage(tvi_handle_t *tvh) -{ - tv_teletext_img_t* tv_teletext_img = NULL; - if (teletext_control(tvh->priv_vbi, TVI_CONTROL_VBI_GET_IMGPAGE, &tv_teletext_img)!= TVI_CONTROL_TRUE) - return NULL; - return tv_teletext_img; -} -#endif - demuxer_desc_t demuxer_desc_tv = { "Tv card demuxer", "tv", diff --git a/stream/tv.h b/stream/tv.h index 63e9afe78a..942060b37a 100644 --- a/stream/tv.h +++ b/stream/tv.h @@ -43,11 +43,6 @@ extern int tv_param_alsa; #endif extern char* tv_param_adevice; #endif -#ifdef HAVE_TV_TELETEXT -extern char* tv_param_tdevice; ///< teletext vbi device -extern char* tv_param_tformat; ///< format: text,bw,gray,color -extern int tv_param_tpage; ///< page number -#endif extern int tv_param_brightness; extern int tv_param_contrast; extern int tv_param_hue; @@ -77,9 +72,6 @@ typedef struct tvi_functions_s typedef struct tvi_handle_s { tvi_functions_t *functions; void *priv; -#ifdef HAVE_TV_TELETEXT - void *priv_vbi; -#endif int seq; /* specific */ @@ -98,18 +90,6 @@ typedef struct tv_channels_s { struct tv_channels_s *prev; } tv_channels_t; -#ifdef HAVE_TV_TELETEXT -typedef struct tv_teletext_img_s { - void* canvas; - int tformat; - int columns; - int rows; - int height; - int width; - int half; -} tv_teletext_img_t; -#endif - extern tv_channels_t *tv_channel_list; extern tv_channels_t *tv_channel_current, *tv_channel_last; extern char *tv_channel_last_real; @@ -173,31 +153,6 @@ extern char *tv_channel_last_real; #define TVI_CONTROL_SPC_SET_INPUT 0x402 /* set input channel (tv,s-video,composite..) */ #define TVI_CONTROL_SPC_GET_NORMID 0x403 /* get normid from norm name */ -/* TELETEXT controls */ -#define TVI_CONTROL_VBI_SET_MODE 0x501 ///< on/off grab teletext -#define TVI_CONTROL_VBI_GET_MODE 0x502 ///< get current mode teletext -#define TVI_CONTROL_VBI_STEP_MODE 0x503 ///< step teletext mode - -#define TVI_CONTROL_VBI_SET_PAGE 0x504 ///< set grab teletext page number -#define TVI_CONTROL_VBI_STEP_PAGE 0x505 ///< step grab teletext page number -#define TVI_CONTROL_VBI_GET_PAGE 0x506 ///< get grabbed teletext page - -#define TVI_CONTROL_VBI_SET_FORMAT 0x507 ///< set teletext format -#define TVI_CONTROL_VBI_STEP_FORMAT 0x508 ///< step teletext format -#define TVI_CONTROL_VBI_GET_FORMAT 0x509 ///< get eletext format - -#define TVI_CONTROL_VBI_GET_HALF_PAGE 0x50a ///< get current half page -#define TVI_CONTROL_VBI_STEP_HALF_PAGE 0x50b ///< switch half page -#define TVI_CONTROL_VBI_SET_HALF_PAGE 0x50c ///< switch half page - -#define TVI_CONTROL_VBI_ADD_DEC 0x50d ///< add page number with dec -#define TVI_CONTROL_VBI_GO_LINK 0x50e ///< go link (1..6) -#define TVI_CONTROL_VBI_GET_TXTPAGE 0x50f ///< get grabbed text teletext page -#define TVI_CONTROL_VBI_GET_IMGPAGE 0x510 ///< get grabbed image teletext page -#define TVI_CONTROL_VBI_GET_VBIPAGE 0x511 ///< get vbi_image for grabbed teletext page -#define TVI_CONTROL_VBI_RESET 0x512 ///< vbi reset -#define TVI_CONTROL_VBI_START 0x513 ///< vbi start - extern tvi_handle_t *tv_begin(void); extern int tv_init(tvi_handle_t *tvh); extern int tv_uninit(tvi_handle_t *tvh); @@ -228,20 +183,6 @@ int tv_step_freq(tvi_handle_t *tvh, float step_interval); int tv_set_norm(tvi_handle_t *tvh, char* norm); -#ifdef HAVE_TV_TELETEXT -int tv_teletext_control(tvi_handle_t* tvh, int control,void* arg); -/// add dec to pageno -int tv_teletext_add_dec(tvi_handle_t *tvh, char *dec); -/// go link -int tv_teletext_go_link(tvi_handle_t *tvh, int linkno); -/// get current vbi_page -void* tv_get_teletext_vbipage(tvi_handle_t *tvh); -/// get current page text -char* tv_get_teletext_txtpage(tvi_handle_t *tvh); -/// get current page image (RGB32_LB format) -tv_teletext_img_t* tv_get_teletext_imgpage(tvi_handle_t *tvh); -#endif - #define TV_NORM_PAL 1 #define TV_NORM_NTSC 2 #define TV_NORM_SECAM 3 diff --git a/stream/tvi_vbi.c b/stream/tvi_vbi.c deleted file mode 100644 index 226cf9b342..0000000000 --- a/stream/tvi_vbi.c +++ /dev/null @@ -1,1197 +0,0 @@ -#include "config.h" - -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <errno.h> - -#include "tv.h" -#include "tvi_vbi.h" -#include "mp_msg.h" -#include "libmpcodecs/img_format.h" - -#ifdef USE_ICONV -#include <iconv.h> -#endif - -#define VBI_TEXT_CHARSET "UTF-8" - -char* tv_param_tdevice=NULL; ///< teletext vbi device -char* tv_param_tformat="gray"; ///< format: text,bw,gray,color -int tv_param_tpage=100; ///< page number - - -#ifdef USE_ICONV -/* ------------------------------------------------------------------- - zvbi-0.2.25/src/exp-txt.c skip debug "if(1) fprintf(stderr,) " message ------------------------------------------------------------------- -*/ - -/** - * libzvbi - Text export functions - * - * Copyright (C) 2001, 2002 Michael H. Schimek - * - * Based on code from AleVT 1.5.1 - * Copyright (C) 1998, 1999 Edgar Toernig <froese@gmx.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - **/ - -/** $Id$ **/ - -static vbi_bool -print_unicode(iconv_t cd, int endian, int unicode, char **p, int n) -{ - char in[2], *ip, *op; - size_t li, lo, r; - - in[0 + endian] = unicode; - in[1 - endian] = unicode >> 8; - ip = in; op = *p; - li = sizeof(in); lo = n; - - r = iconv(cd, &ip, &li, &op, &lo); - - if ((size_t) -1 == r - || (**p == 0x40 && unicode != 0x0040)) { - in[0 + endian] = 0x20; - in[1 - endian] = 0; - ip = in; op = *p; - li = sizeof(in); lo = n; - - r = iconv(cd, &ip, &li, &op, &lo); - - if ((size_t) -1 == r - || (r == 1 && **p == 0x40)) - goto error; - } - - *p = op; - - return TRUE; - - error: - return FALSE; -} - -static int -vbi_print_page_region_nodebug(vbi_page * pg, char *buf, int size, - const char *format, vbi_bool table, - vbi_bool rtl, int column, int row, int width, - int height) -{ - int endian = vbi_ucs2be(); - int column0, column1, row0, row1; - int x, y, spaces, doubleh, doubleh0; - iconv_t cd; - char *p; - - rtl = rtl; - -#if 0 - if (1) - fprintf (stderr, "vbi_print_page_region '%s' " - "table=%d col=%d row=%d width=%d height=%d\n", - format, table, column, row, width, height); -#endif - - column0 = column; - row0 = row; - column1 = column + width - 1; - row1 = row + height - 1; - - if (!pg || !buf || size < 0 || !format - || column0 < 0 || column1 >= pg->columns - || row0 < 0 || row1 >= pg->rows - || endian < 0) - return 0; - - if ((cd = iconv_open(format, "UCS-2")) == (iconv_t) -1) - return 0; - - p = buf; - - doubleh = 0; - - for (y = row0; y <= row1; y++) { - int x0, x1, xl; - - x0 = (table || y == row0) ? column0 : 0; - x1 = (table || y == row1) ? column1 : (pg->columns - 1); - - xl = (table || y != row0 || (y + 1) != row1) ? -1 : column1; - - doubleh0 = doubleh; - - spaces = 0; - doubleh = 0; - - for (x = x0; x <= x1; x++) { - vbi_char ac = pg->text[y * pg->columns + x]; - - if (table) { - if (ac.size > VBI_DOUBLE_SIZE) - ac.unicode = 0x0020; - } else { - switch (ac.size) { - case VBI_NORMAL_SIZE: - case VBI_DOUBLE_WIDTH: - break; - - case VBI_DOUBLE_HEIGHT: - case VBI_DOUBLE_SIZE: - doubleh++; - break; - - case VBI_OVER_TOP: - case VBI_OVER_BOTTOM: - continue; - - case VBI_DOUBLE_HEIGHT2: - case VBI_DOUBLE_SIZE2: - if (y > row0) - ac.unicode = 0x0020; - break; - } - - /* - * Special case two lines row0 ... row1, and all chars - * in row0, column0 ... column1 are double height: Skip - * row1, don't wrap around. - */ - if (x == xl && doubleh >= (x - x0)) { - x1 = xl; - y = row1; - } - - if (ac.unicode == 0x20 || !vbi_is_print(ac.unicode)) { - spaces++; - continue; - } else { - if (spaces < (x - x0) || y == row0) { - for (; spaces > 0; spaces--) - if (!print_unicode(cd, endian, 0x0020, - &p, buf + size - p)) - goto failure; - } else /* discard leading spaces */ - spaces = 0; - } - } - - if (!print_unicode(cd, endian, ac.unicode, &p, buf + size - p)) - goto failure; - } - - /* if !table discard trailing spaces and blank lines */ - - if (y < row1) { - int left = buf + size - p; - - if (left < 1) - goto failure; - - if (table) { - *p++ = '\n'; /* XXX convert this (eg utf16) */ - } else if (spaces >= (x1 - x0)) { - ; /* suppress blank line */ - } else { - /* exactly one space between adjacent rows */ - if (!print_unicode(cd, endian, 0x0020, &p, left)) - goto failure; - } - } else { - if (doubleh0 > 0) { - ; /* prentend this is a blank double height lower row */ - } else { - for (; spaces > 0; spaces--) - if (!print_unicode(cd, endian, 0x0020, &p, buf + size - p)) - goto failure; - } - } - } - - iconv_close(cd); - return p - buf; - - failure: - iconv_close(cd); - return 0; -} -#endif -/* - end of zvbi-0.2.25/src/exp-txt.c part -*/ - - -/* ------------------------------------------------------------------- - Private routines ------------------------------------------------------------------- -*/ - -/** - * \brief Decode event handler - * \param ev VBI event - * \param data pointer to user defined data - * - */ -static void event_handler(vbi_event * ev, void *data) -{ - priv_vbi_t *user_vbi = (priv_vbi_t *) data; - vbi_page pg; - char *s; - int i; - - switch (ev->type) { - case VBI_EVENT_CAPTION: - mp_msg(MSGT_TV,MSGL_DBG3,"caption\n"); - break; - case VBI_EVENT_NETWORK: - s = ev->ev.network.name; - if (s) { - pthread_mutex_lock(&(user_vbi->buffer_mutex)); - if (user_vbi->network_name) - free(user_vbi->network_name); - user_vbi->network_name = strdup(s); - pthread_mutex_unlock(&(user_vbi->buffer_mutex)); - } - break; - case VBI_EVENT_NETWORK_ID: - s = ev->ev.network.name; - if (s) { - pthread_mutex_lock(&(user_vbi->buffer_mutex)); - if (user_vbi->network_id) - free(user_vbi->network_id); - user_vbi->network_id = strdup(s); - pthread_mutex_unlock(&(user_vbi->buffer_mutex)); - } - break; - case VBI_EVENT_TTX_PAGE: - pthread_mutex_lock(&(user_vbi->buffer_mutex)); - user_vbi->curr_pgno = ev->ev.ttx_page.pgno; // page number - user_vbi->curr_subno = ev->ev.ttx_page.subno; // subpage - i = vbi_bcd2dec(ev->ev.ttx_page.pgno); - if (i > 0 && i < 1000) { - if (!user_vbi->cache[i]) - user_vbi->cache[i] = (vbi_page *) malloc(sizeof(vbi_page)); - vbi_fetch_vt_page(user_vbi->decoder, // fetch page - user_vbi->cache[i], - ev->ev.ttx_page.pgno, - ev->ev.ttx_page.subno, - VBI_WST_LEVEL_3p5, 25, TRUE); - memcpy(user_vbi->theader, user_vbi->cache[i]->text, - sizeof(user_vbi->theader)); - } - pthread_mutex_unlock(&(user_vbi->buffer_mutex)); - break; - } -} - -/** - * \brief Prepares page to be shown on screen - * \param priv_vbi private data structure - * - * This routine adds page number, current time, etc to page header - * - */ -static void process_page(priv_vbi_t * priv_vbi) -{ - char *pagesptr; - int csize, i, j, subtitle = 0, sflg, send; - void *canvas; - char cpage[5]; - vbi_page page; - - memcpy(&(page), priv_vbi->page, sizeof(vbi_page)); - if (priv_vbi->pgno != priv_vbi->page->pgno) { - //don't clear first line - for (i = page.columns; i < 1056; i++) { - page.text[i].unicode = ' '; - page.text[i].background = VBI_TRANSPARENT_COLOR; - } - snprintf(cpage, sizeof(cpage), "%03X", priv_vbi->pgno); - page.text[1].unicode = cpage[0]; - page.text[2].unicode = cpage[1]; - page.text[3].unicode = cpage[2]; - page.text[4].unicode = ' '; - page.text[5].unicode = ' '; - page.text[6].unicode = ' '; - } - - //background page number & title - j=vbi_bcd2dec(priv_vbi->curr_pgno); - if (j>0 && j<1000 && priv_vbi->cache[j]){ - for(i=8;i<priv_vbi->cache[j]->columns;i++){ - page.text[i].unicode = priv_vbi->cache[j]->text[i].unicode; - } - } - - if (page.text[1].unicode == ' ' && page.text[2].unicode == ' ' && - page.text[3].unicode == ' ' && page.text[4].unicode == ' ' && - page.text[5].unicode == ' ' && page.text[5].unicode == ' ' - && !priv_vbi->half) - subtitle = 1; // subtitle page - if (priv_vbi->pagenumdec) { - i = (priv_vbi->pagenumdec >> 12) & 0xf; - switch (i) { - case 1: - page.text[1].unicode = '0' + ((priv_vbi->pagenumdec >> 0) & 0xf); - page.text[2].unicode = '-'; - page.text[3].unicode = '-'; - break; - case 2: - page.text[1].unicode = '0' + ((priv_vbi->pagenumdec >> 4) & 0xf); - page.text[2].unicode = '0' + ((priv_vbi->pagenumdec >> 0) & 0xf); - page.text[3].unicode = '-'; - break; - } - page.text[4].unicode = ' '; - page.text[5].unicode = ' '; - page.text[6].unicode = ' '; - page.text[1].foreground = VBI_WHITE; - page.text[2].foreground = VBI_WHITE; - page.text[3].foreground = VBI_WHITE; - } - priv_vbi->columns = page.columns; - priv_vbi->rows = page.rows; - if (!subtitle) { // update time in header - memcpy(&(page.text[VBI_TIME_LINEPOS]), - &(priv_vbi->theader[VBI_TIME_LINEPOS]), - sizeof(vbi_char) * (priv_vbi->columns - VBI_TIME_LINEPOS)); - } - switch (priv_vbi->tformat) { - case VBI_TFORMAT_TEXT: // mode: text - if (priv_vbi->txtpage) { -#ifdef USE_ICONV - vbi_print_page_region_nodebug(&(page), priv_vbi->txtpage, - VBI_TXT_PAGE_SIZE, VBI_TEXT_CHARSET, TRUE, - 0, 0, 0, page.columns, page.rows); // vbi_page to text without message -#else - vbi_print_page(&(page), priv_vbi->txtpage, - VBI_TXT_PAGE_SIZE, VBI_TEXT_CHARSET, TRUE, 0); -#endif - } - priv_vbi->valid_page = 1; - break; - case VBI_TFORMAT_BW: // mode: black & white - for (i=0; i < (priv_vbi->pgno!=page.pgno?page.columns:1056); i++) { - if (priv_vbi->foreground){ - page.text[i].foreground = VBI_BLACK; - page.text[i].background = VBI_WHITE; - }else{ - page.text[i].foreground = VBI_WHITE; - page.text[i].background = VBI_BLACK; - } - } - case VBI_TFORMAT_GRAY: // mode: grayscale - case VBI_TFORMAT_COLOR: // mode: color (request color spu patch!) - - - - page.color_map[VBI_TRANSPARENT_COLOR] = 0; - if (priv_vbi->alpha) { - if (subtitle) { - for (i = 0; i < page.rows; i++) { - sflg = 0; - send = 0; - for (j = 0; j < page.columns; j++) { - if (page.text[i * page.columns + j].unicode != ' ') { - sflg = 1; - send = j; - } - if (sflg == 0) - page.text[i * page.columns + j].background = - VBI_TRANSPARENT_COLOR; - } - for (j = send + 1; j < page.columns; j++) - page.text[i * page.columns + j].background = - VBI_TRANSPARENT_COLOR; - } - } else { - for (i = 0; i < 1056; i++) - page.text[i].background = VBI_TRANSPARENT_COLOR; - } - } - csize = page.columns * page.rows * 12 * 10 * sizeof(vbi_rgba); - if (csize == 0) - break; - if (csize > priv_vbi->canvas_size) { // test canvas size - if (priv_vbi->canvas) - free(priv_vbi->canvas); - priv_vbi->canvas = malloc(csize); - priv_vbi->canvas_size = 0; - if (priv_vbi->canvas) - priv_vbi->canvas_size = csize; - } - if (priv_vbi->canvas) { - vbi_draw_vt_page(&(page), - priv_vbi->fmt, - priv_vbi->canvas, - priv_vbi->reveal, priv_vbi->flash_on); - priv_vbi->csize = csize; - } - priv_vbi->spudec_proc = 1; - priv_vbi->valid_page = 1; - break; - } -} - -/** - * \brief Update page in cache - * \param priv_vbi private data structure - * - * Routine also calls process_page to refresh currently visible page (if so) - * every time it was received from VBI by background thread. - * - */ -static void update_page(priv_vbi_t * priv_vbi) -{ - int i; - int index; - pthread_mutex_lock(&(priv_vbi->buffer_mutex)); - /* - priv_vbi->redraw=1 - page redraw requested - pgno!=page->pgno - page was switched - curr_pgno==pgno - backgound process just fetched current page, refresh it - */ - if (priv_vbi->redraw || - priv_vbi->pgno != priv_vbi->page->pgno || - priv_vbi->curr_pgno == priv_vbi->pgno) { - index = vbi_bcd2dec(priv_vbi->pgno); - if ( index <= 0 || index > 999 || !priv_vbi->cache[index]) { - // curr_pgno is last decoded page - index = vbi_bcd2dec(priv_vbi->curr_pgno); - } - - if (index <=0 || index >999 || !priv_vbi->cache[index]){ - priv_vbi->valid_page = 0; - memset(priv_vbi->page, 0, sizeof(vbi_page)); - }else - { - memcpy(priv_vbi->page, priv_vbi->cache[index], sizeof(vbi_page)); - process_page(priv_vbi);//prepare page to be shown on screen - } - } - pthread_mutex_unlock(&(priv_vbi->buffer_mutex)); -} - -/** - * \brief background grabber routine - * \param data user-defined data - * - */ -static void *grabber(void *data) -{ - priv_vbi_t *user_vbi = (priv_vbi_t *) data; - vbi_capture_buffer *sliced_buffer; - struct timeval timeout; - unsigned int n_lines; - int r, err_count = 0; - - while (!user_vbi->eof) { - timeout.tv_sec = 0; - timeout.tv_usec = 500; - r = vbi_capture_pull(user_vbi->capture, NULL, &sliced_buffer, &timeout); // grab slices - if (user_vbi->eof) - return NULL; - switch (r) { - case -1: // read error - if (err_count++ > 4) - user_vbi->eof = 1; - break; - case 0: // time out - break; - default: - err_count = 0; - } - if (r != 1) - continue; - n_lines = sliced_buffer->size / sizeof(vbi_sliced); - vbi_decode(user_vbi->decoder, (vbi_sliced *) sliced_buffer->data, - n_lines, sliced_buffer->timestamp); // decode slice - update_page(user_vbi); - } - switch (r) { - case -1: - mp_msg(MSGT_TV, MSGL_ERR, "VBI read error %d (%s)\n", - errno, strerror(errno)); - return NULL; - case 0: - mp_msg(MSGT_TV, MSGL_ERR, "VBI read timeout\n"); - return NULL; - } - return NULL; -} - -/** - * \brief calculate increased/decreased by given value page number - * \param curr current page number in hexadecimal for - * \param direction decimal value (can be negative) to add to value or curr parameter - * \return new page number in hexadecimal form - * - * VBI page numbers are represented in special hexadecimal form, e.g. - * page with number 123 (as seen by user) internally has number 0x123. - * and equation 0x123+8 should be equal to 0x131 instead of regular 0x12b. - * Page numbers 0xYYY (where Y is not belongs to (0..9) and pages below 0x100 and - * higher 0x999 are reserved for internal use. - * - */ -static int steppage(int curr, int direction) -{ - int newpage = vbi_dec2bcd(vbi_bcd2dec(curr) + direction); - if (newpage < 0x100) - newpage = 0x100; - if (newpage > 0x999) - newpage = 0x999; - return newpage; -} - -/** - * \brief toggles teletext page displaying mode - * \param priv_vbi private data structure - * \param flag new mode - * \return - * TVI_CONTROL_TRUE is success, - * TVI_CONTROL_FALSE otherwise - * - * flag: - * 0 - off - * 1 - on & opaque - * 2 - on & transparent - * 3 - on & transparent with black foreground color (only in bw mode) - * - */ -static int teletext_set_mode(priv_vbi_t * priv_vbi, int flag) -{ - if (flag<0 || flag>3) - return TVI_CONTROL_FALSE; - - pthread_mutex_lock(&(priv_vbi->buffer_mutex)); - - priv_vbi->on = flag; - - if (priv_vbi->on > 2 && priv_vbi->tformat != VBI_TFORMAT_BW) - priv_vbi->on = 0; - - priv_vbi->foreground = 0; - priv_vbi->pagenumdec = 0; - priv_vbi->spudec_proc = 1; - priv_vbi->redraw = 1; - switch (priv_vbi->on) { - case 0: - priv_vbi->csize = 0; - break; - case 1: - priv_vbi->alpha = 0; - break; - case 2: - priv_vbi->alpha = 1; - break; - case 3: - priv_vbi->alpha = 1; - priv_vbi->foreground = 1; - break; - } - pthread_mutex_unlock(&(priv_vbi->buffer_mutex)); - return TVI_CONTROL_TRUE; -} - -/** - * \brief get half page mode (only in SPU mode) - * \param priv_vbi private data structure - * \return current mode - * 0 : half mode off - * 1 : top half page - * 2 : bottom half page - */ -static int vbi_get_half(priv_vbi_t * priv_vbi) -{ - int flag = 0; - pthread_mutex_lock(&(priv_vbi->buffer_mutex)); - if (priv_vbi->valid_page) - flag = priv_vbi->half; - priv_vbi->pagenumdec = 0; - pthread_mutex_unlock(&(priv_vbi->buffer_mutex)); - return flag; -} - -/** - * \brief set half page mode (only in SPU mode) - * \param priv_vbi private data structure - * \param flag new half page mode - * \return - * TVI_CONTROL_TRUE is success, - * TVI_CONTROL_FALSE otherwise - * - * - * flag: - * 0 : half mode off - * 1 : top half page - * 2 : bottom half page - */ -static int teletext_set_half_page(priv_vbi_t * priv_vbi, int flag) -{ - if (flag<0 || flag>2) - return TVI_CONTROL_FALSE; - - pthread_mutex_lock(&(priv_vbi->buffer_mutex)); - priv_vbi->half = flag; - if (priv_vbi->tformat == VBI_TFORMAT_TEXT && priv_vbi->half > 1) - priv_vbi->half = 0; - priv_vbi->redraw = 1; - priv_vbi->pagenumdec = 0; - pthread_mutex_unlock(&(priv_vbi->buffer_mutex)); - return TVI_CONTROL_TRUE; -} - -/** - * \brief displays specified page - * \param priv_vbi private data structure - * \param pgno page number to display - * \param subno subpage number - * - */ -static void vbi_setpage(priv_vbi_t * priv_vbi, int pgno, int subno) -{ - pthread_mutex_lock(&(priv_vbi->buffer_mutex)); - priv_vbi->pgno = steppage(0, pgno); - priv_vbi->subno = subno; - priv_vbi->redraw = 1; - priv_vbi->pagenumdec = 0; - pthread_mutex_unlock(&(priv_vbi->buffer_mutex)); -} - -/** - * \brief steps over pages by a given value - * \param priv_vbi private data structure - * \param direction decimal step value (can be negative) - * - */ -static void vbi_steppage(priv_vbi_t * priv_vbi, int direction) -{ - pthread_mutex_lock(&(priv_vbi->buffer_mutex)); - priv_vbi->pgno = steppage(priv_vbi->pgno, direction); - priv_vbi->redraw = 1; - priv_vbi->pagenumdec = 0; - pthread_mutex_unlock(&(priv_vbi->buffer_mutex)); -} - -/** - * \brief append just entered digit to editing page number - * \param priv_vbi private data structure - * \param dec decimal digit to append - * - * dec: - * '0'..'9' append digit - * '-' remove last digit (backspace emulation) - * - * This routine allows user to jump to arbitrary page. - * It implements simple page number editing algorithm. - * - * Subsystem can be on one of two modes: normal and page number edit mode. - * Zero value of priv_vbi->pagenumdec means normal mode - * Non-zero value means page number edit mode and equals to packed - * decimal number of already entered part of page number. - * - * How this works. - * Let's assume that current mode is normal (pagenumdec is zero), teletext page - * 100 are displayed as usual. topmost left corner of page contains page number. - * Then vbi_add_dec is sequentally called (through slave - * command of course) with 1,4,-,2,3 * values of dec parameter. - * - * +-----+------------+------------------+ - * | dec | pagenumxec | displayed number | - * +-----+------------+------------------+ - * | | 0x000 | 100 | - * +-----+------------+------------------+ - * | 1 | 0x001 | __1 | - * +-----+------------+------------------+ - * | 4 | 0x014 | _14 | - * +-----+------------+------------------+ - * | - | 0x001 | __1 | - * +-----+------------+------------------+ - * | 2 | 0x012 | _12 | - * +-----+------------+------------------+ - * | 3 | 0x123 | 123 | - * +-----+------------+------------------+ - * | | 0x000 | 123 | - * +-----+------------+------------------+ - * - * pagenumdec will automatically receive zero value after third digit of page number - * is entered and current page will be switched to another one with entered page number. - * - */ -static void vbi_add_dec(priv_vbi_t * priv_vbi, char *dec) -{ - int count, shift; - if (!dec) - return; - if (!priv_vbi->on) - return; - if ((*dec < '0' || *dec > '9') && *dec != '-') - return; - pthread_mutex_lock(&(priv_vbi->buffer_mutex)); - count = (priv_vbi->pagenumdec >> 12) & 0xf; - if (*dec == '-') { - count--; - if (count) - priv_vbi->pagenumdec = ((priv_vbi->pagenumdec >> 4) & 0xfff) | (count << 12); - else - priv_vbi->pagenumdec = 0; - } else { - shift = count * 4; - count++; - priv_vbi->pagenumdec = - (((priv_vbi->pagenumdec) << 4 | (*dec -'0')) & 0xfff) | (count << 12); - if (count == 3) { - priv_vbi->pgno = priv_vbi->pagenumdec & 0xfff; - priv_vbi->subno = 0; - priv_vbi->redraw = 1; - priv_vbi->pagenumdec = 0; - } - } - pthread_mutex_unlock(&(priv_vbi->buffer_mutex)); -} - -/** - * \brief follows link specified on current page - * \param priv_vbi private data structure - * \param linkno link number (0..6) |