stream/tv.c

   1 /*
   2  * TV Interface for MPlayer
   3  *
   4  * API idea based on libvo2
   5  *
   6  * Copyright (C) 2001 Alex Beregszaszi
   7  *
   8  * Feb 19, 2002: Significant rewrites by Charles R. Henrich (henrich@msu.edu)
   9  *               to add support for audio, and bktr *BSD support.
  10  *
  11  * This file is part of MPlayer.
  12  *
  13  * MPlayer is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * MPlayer is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License along
  24  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  25  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  26  */
  27
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <unistd.h>
  31 #include <string.h>
  32 #include <ctype.h>
  33 #include <sys/time.h>
  34
  35 #include "config.h"
  36
  37
  38 #include "mp_msg.h"
  39
  40 #include "stream.h"
  41 #include "libmpdemux/demuxer.h"
  42 #include "libmpdemux/stheader.h"
  43
  44 #include "libaf/af_format.h"
  45 #include "libmpcodecs/img_format.h"
  46 #include "libmpcodecs/dec_teletext.h"
  47 #include "libavutil/avstring.h"
  48 #include "osdep/timer.h"
  49
  50 #include "tv.h"
  51
  52 #include "frequencies.h"
  53
  54 tv_channels_t *tv_channel_list;
  55 tv_channels_t *tv_channel_current, *tv_channel_last;
  56 char *tv_channel_last_real;
  57
  58 /* enumerating drivers (like in stream.c) */
  59 extern const tvi_info_t tvi_info_dummy;
  60 extern const tvi_info_t tvi_info_dshow;
  61 extern const tvi_info_t tvi_info_v4l;
  62 extern const tvi_info_t tvi_info_v4l2;
  63 extern const tvi_info_t tvi_info_bsdbt848;
  64
  65 /** List of drivers in autodetection order */
  66 static const tvi_info_t* tvi_driver_list[]={
  67 #ifdef CONFIG_TV_V4L2
  68     &tvi_info_v4l2,
  69 #endif
  70 #ifdef CONFIG_TV_V4L1
  71     &tvi_info_v4l,
  72 #endif
  73 #ifdef CONFIG_TV_BSDBT848
  74     &tvi_info_bsdbt848,
  75 #endif
  76 #ifdef CONFIG_TV_DSHOW
  77     &tvi_info_dshow,
  78 #endif
  79     &tvi_info_dummy,
  80     NULL
  81 };
  82
  83 void tv_free_handle(tvi_handle_t *h)
  84 {
  85     if (h) {
  86         if (h->priv)
  87             free(h->priv);
  88         if (h->scan)
  89             free(h->scan);
  90         free(h);
  91     }
  92 }
  93
  94 void tv_start_scan(tvi_handle_t *tvh, int start)
  95 {
  96     mp_msg(MSGT_TV,MSGL_INFO,"start scan\n");
  97     tvh->tv_param->scan=start?1:0;
  98 }
  99
 100 static void tv_scan(tvi_handle_t *tvh)
 101 {
 102     unsigned int now;
 103     struct CHANLIST cl;
 104     tv_channels_t *tv_channel_tmp=NULL;
 105     tv_channels_t *tv_channel_add=NULL;
 106     tv_scan_t* scan;
 107     int found=0, index=1;
 108
 109     //Channel scanner without tuner is useless and causes crash due to uninitialized chanlist_s
 110     if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) != TVI_CONTROL_TRUE)
 111     {
 112         mp_tmsg(MSGT_TV, MSGL_WARN, "Channel scanner is not available without tuner\n");
 113         tvh->tv_param->scan=0;
 114         return;
 115     }
 116
 117     scan = tvh->scan;
 118     now=GetTimer();
 119     if (!scan) {
 120         scan=calloc(1,sizeof(tv_scan_t));
 121         tvh->scan=scan;
 122         cl = tvh->chanlist_s[scan->channel_num];
 123         tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
 124         scan->scan_timer=now+1e6*tvh->tv_param->scan_period;
 125     }
 126     if(scan->scan_timer>now)
 127         return;
 128
 129     if (tv_get_signal(tvh)>tvh->tv_param->scan_threshold) {
 130         cl = tvh->chanlist_s[scan->channel_num];
 131         tv_channel_tmp=tv_channel_list;
 132         while (tv_channel_tmp) {
 133             index++;
 134             if (cl.freq==tv_channel_tmp->freq){
 135                 found=1;
 136                 break;
 137             }
 138             tv_channel_add=tv_channel_tmp;
 139             tv_channel_tmp=tv_channel_tmp->next;
 140         }
 141         if (!found) {
 142             mp_msg(MSGT_TV, MSGL_INFO, "Found new channel: %s (#%d). \n",cl.name,index);
 143             scan->new_channels++;
 144             tv_channel_tmp = malloc(sizeof(tv_channels_t));
 145             tv_channel_tmp->index=index;
 146             tv_channel_tmp->next=NULL;
 147             tv_channel_tmp->prev=tv_channel_add;
 148             tv_channel_tmp->freq=cl.freq;
 149             snprintf(tv_channel_tmp->name,sizeof(tv_channel_tmp->name),"ch%d",index);
 150             strncpy(tv_channel_tmp->number, cl.name, 5);
 151             tv_channel_tmp->number[4]='\0';
 152             if (!tv_channel_list)
 153                 tv_channel_list=tv_channel_tmp;
 154             else {
 155                 tv_channel_add->next=tv_channel_tmp;
 156                 tv_channel_list->prev=tv_channel_tmp;
 157             }
 158         }else
 159             mp_msg(MSGT_TV, MSGL_INFO, "Found existing channel: %s-%s.\n",
 160                 tv_channel_tmp->number,tv_channel_tmp->name);
 161     }
 162     scan->channel_num++;
 163     scan->scan_timer=now+1e6*tvh->tv_param->scan_period;
 164     if (scan->channel_num>=chanlists[tvh->chanlist].count) {
 165         tvh->tv_param->scan=0;
 166         mp_msg(MSGT_TV, MSGL_INFO, "TV scan end. Found %d new channels.\n", scan->new_channels);
 167         tv_channel_tmp=tv_channel_list;
 168         if(tv_channel_tmp){
 169             mp_msg(MSGT_TV,MSGL_INFO,"channels=");
 170             while(tv_channel_tmp){
 171                 mp_msg(MSGT_TV,MSGL_INFO,"%s-%s",tv_channel_tmp->number,tv_channel_tmp->name);
 172                 if(tv_channel_tmp->next)
 173                     mp_msg(MSGT_TV,MSGL_INFO,",");
 174                 tv_channel_tmp=tv_channel_tmp->next;
 175             }
 176             mp_msg(MSGT_TV, MSGL_INFO, "\n");
 177         }
 178         if (!tv_channel_current) tv_channel_current=tv_channel_list;
 179         if (tv_channel_current)
 180             tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
 181         free(tvh->scan);
 182         tvh->scan=NULL;
 183     }else{
 184         cl = tvh->chanlist_s[scan->channel_num];
 185         tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
 186         mp_msg(MSGT_TV, MSGL_INFO, "Trying: %s (%.2f). \n",cl.name,1e-3*cl.freq);
 187     }
 188 }
 189
 190 /* ================== DEMUX_TV ===================== */
 191 /*
 192   Return value:
 193     0 = EOF(?) or no stream
 194     1 = successfully read a packet
 195 */
 196 /* fill demux->video and demux->audio */
 197
 198 static int demux_tv_fill_buffer(demuxer_t *demux, demux_stream_t *ds)
 199 {
 200     tvi_handle_t *tvh=(tvi_handle_t*)(demux->priv);
 201     demux_packet_t* dp;
 202     unsigned int len=0;
 203
 204     /* ================== ADD AUDIO PACKET =================== */
 205
 206     if (ds==demux->audio && tvh->tv_param->noaudio == 0 &&
 207         tvh->functions->control(tvh->priv,
 208                                 TVI_CONTROL_IS_AUDIO, 0) == TVI_CONTROL_TRUE)
 209         {
 210         len = tvh->functions->get_audio_framesize(tvh->priv);
 211
 212         dp=new_demux_packet(len);
 213         dp->flags|=1; /* Keyframe */
 214         dp->pts=tvh->functions->grab_audio_frame(tvh->priv, dp->buffer,len);
 215         ds_add_packet(demux->audio,dp);
 216         }
 217
 218     /* ================== ADD VIDEO PACKET =================== */
 219
 220     if (ds==demux->video && tvh->functions->control(tvh->priv,
 221                             TVI_CONTROL_IS_VIDEO, 0) == TVI_CONTROL_TRUE)
 222         {
 223                 len = tvh->functions->get_video_framesize(tvh->priv);
 224         dp=new_demux_packet(len);
 225                 dp->flags|=1; /* Keyframe */
 226                 dp->pts=tvh->functions->grab_video_frame(tvh->priv, dp->buffer, len);
 227                 ds_add_packet(demux->video,dp);
 228          }
 229
 230     if (tvh->tv_param->scan) tv_scan(tvh);
 231     return 1;
 232 }
 233
 234 static int norm_from_string(tvi_handle_t *tvh, char* norm)
 235 {
 236     const tvi_functions_t *funcs = tvh->functions;
 237     char str[20];
 238     int ret;
 239
 240     strncpy(str, norm, sizeof(str)-1);
 241     str[sizeof(str)-1] = '\0';
 242     ret=funcs->control(tvh->priv, TVI_CONTROL_SPC_GET_NORMID, str);
 243
 244     if(ret==TVI_CONTROL_TRUE)
 245         return *(int *)str;
 246
 247     if(ret!=TVI_CONTROL_UNKNOWN)
 248     {
 249         mp_tmsg(MSGT_TV, MSGL_WARN, "tv.c: norm_from_string(%s): Bogus norm parameter, setting %s.\n", norm,"default");
 250         return 0;
 251     }
 252
 253     if (!strcasecmp(norm, "pal"))
 254         return TV_NORM_PAL;
 255     else if (!strcasecmp(norm, "ntsc"))
 256         return TV_NORM_NTSC;
 257     else if (!strcasecmp(norm, "secam"))
 258         return TV_NORM_SECAM;
 259     else if (!strcasecmp(norm, "palnc"))
 260         return TV_NORM_PALNC;
 261     else if (!strcasecmp(norm, "palm"))
 262         return TV_NORM_PALM;
 263     else if (!strcasecmp(norm, "paln"))
 264         return TV_NORM_PALN;
 265     else if (!strcasecmp(norm, "ntscjp"))
 266         return TV_NORM_NTSCJP;
 267     else {
 268         mp_tmsg(MSGT_TV, MSGL_WARN, "tv.c: norm_from_string(%s): Bogus norm parameter, setting %s.\n", norm, "PAL");
 269         return TV_NORM_PAL;
 270     }
 271 }
 272
 273 static void parse_channels(tvi_handle_t *tvh)
 274 {
 275     char** channels = tvh->tv_param->channels;
 276
 277     mp_tmsg(MSGT_TV, MSGL_INFO, "TV channel names detected.\n");
 278     tv_channel_list = malloc(sizeof(tv_channels_t));
 279     tv_channel_list->index=1;
 280     tv_channel_list->next=NULL;
 281     tv_channel_list->prev=NULL;
 282     tv_channel_current = tv_channel_list;
 283     tv_channel_current->norm = tvh->norm;
 284
 285     while (*channels) {
 286         char* tmp = *(channels++);
 287         char* sep = strchr(tmp,'-');
 288         int i;
 289         struct CHANLIST cl;
 290
 291         if (!sep) continue; // Wrong syntax, but mplayer should not crash
 292
 293         av_strlcpy(tv_channel_current->name, sep + 1,
 294                         sizeof(tv_channel_current->name));
 295         sep[0] = '\0';
 296         strncpy(tv_channel_current->number, tmp, 5);
 297         tv_channel_current->number[4]='\0';
 298
 299         while ((sep=strchr(tv_channel_current->name, '_')))
 300             sep[0] = ' ';
 301
 302         // if channel number is a number and larger than 1000 threat it as frequency
 303         // tmp still contain pointer to null-terminated string with channel number here
 304         if (atoi(tmp)>1000){
 305             tv_channel_current->freq=atoi(tmp);
 306         }else{
 307             tv_channel_current->freq = 0;
 308             for (i = 0; i < chanlists[tvh->chanlist].count; i++) {
 309                 cl = tvh->chanlist_s[i];
 310                 if (!strcasecmp(cl.name, tv_channel_current->number)) {
 311                     tv_channel_current->freq=cl.freq;
 312                     break;
 313                 }
 314             }
 315         }
 316         if (tv_channel_current->freq == 0)
 317             mp_tmsg(MSGT_TV, MSGL_ERR, "Couldn't find frequency for channel %s (%s)\n",
 318                             tv_channel_current->number, tv_channel_current->name);
 319         else {
 320           sep = strchr(tv_channel_current->name, '-');
 321           if ( !sep ) sep = strchr(tv_channel_current->name, '+');
 322
 323           if ( sep ) {
 324             i = atoi (sep+1);
 325             if ( sep[0] == '+' ) tv_channel_current->freq += i * 100;
 326             if ( sep[0] == '-' ) tv_channel_current->freq -= i * 100;
 327             sep[0] = '\0';
 328           }
 329
 330           sep = strchr(tv_channel_current->name, '=');
 331           if ( sep ) {
 332             tv_channel_current->norm = norm_from_string(tvh, sep+1);
 333             sep[0] = '\0';
 334           }
 335         }
 336
 337         /*mp_msg(MSGT_TV, MSGL_INFO, "-- Detected channel %s - %s (%5.3f)\n",
 338                         tv_channel_current->number, tv_channel_current->name,
 339                         (float)tv_channel_current->freq/1000);*/
 340
 341         tv_channel_current->next = malloc(sizeof(tv_channels_t));
 342         tv_channel_current->next->index = tv_channel_current->index + 1;
 343         tv_channel_current->next->prev = tv_channel_current;
 344         tv_channel_current->next->next = NULL;
 345         tv_channel_current = tv_channel_current->next;
 346         tv_channel_current->norm = tvh->norm;
 347     }
 348     if (tv_channel_current->prev)
 349         tv_channel_current->prev->next = NULL;
 350     free(tv_channel_current);
 351 }
 352
 353 int tv_set_norm(tvi_handle_t *tvh, char* norm)
 354 {
 355     tvh->norm = norm_from_string(tvh, norm);
 356
 357     mp_tmsg(MSGT_TV, MSGL_V, "Selected norm : %s\n", norm);
 358     if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM, &tvh->norm) != TVI_CONTROL_TRUE) {
 359         mp_tmsg(MSGT_TV, MSGL_ERR, "Error: Cannot set norm!\n");
 360         return 0;
 361     }
 362     teletext_control(tvh->demuxer->teletext,TV_VBI_CONTROL_RESET,
 363                      &tvh->tv_param->teletext);
 364     return 1;
 365 }
 366
 367 static int tv_set_norm_i(tvi_handle_t *tvh, int norm)
 368 {
 369    tvh->norm = norm;
 370
 371    mp_tmsg(MSGT_TV, MSGL_V, "Selected norm id: %d\n", norm);
 372    if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM, &tvh->norm) != TVI_CONTROL_TRUE) {
 373       mp_tmsg(MSGT_TV, MSGL_ERR, "Error: Cannot set norm!\n");
 374       return 0;
 375    }
 376
 377    teletext_control(tvh->demuxer->teletext,TV_VBI_CONTROL_RESET,
 378                     &tvh->tv_param->teletext);
 379    return 1;
 380 }
 381
 382 static int open_tv(tvi_handle_t *tvh)
 383 {
 384     int i;
 385     const tvi_functions_t *funcs = tvh->functions;
 386     int tv_fmt_list[] = {
 387       IMGFMT_YV12,
 388       IMGFMT_I420,
 389       IMGFMT_UYVY,
 390       IMGFMT_YUY2,
 391       IMGFMT_RGB32,
 392       IMGFMT_RGB24,
 393       IMGFMT_RGB16,
 394       IMGFMT_RGB15
 395     };
 396
 397     if (funcs->control(tvh->priv, TVI_CONTROL_IS_VIDEO, 0) != TVI_CONTROL_TRUE)
 398     {
 399         mp_tmsg(MSGT_TV, MSGL_ERR, "Error: No video input present!\n");
 400         return 0;
 401     }
 402
 403     if (tvh->tv_param->outfmt == -1)
 404       for (i = 0; i < sizeof (tv_fmt_list) / sizeof (*tv_fmt_list); i++)
 405         {
 406           tvh->tv_param->outfmt = tv_fmt_list[i];
 407           if (funcs->control (tvh->priv, TVI_CONTROL_VID_SET_FORMAT,
 408                               &tvh->tv_param->outfmt) == TVI_CONTROL_TRUE)
 409             break;
 410         }
 411     else
 412     {
 413     switch(tvh->tv_param->outfmt)
 414     {
 415         case IMGFMT_YV12:
 416         case IMGFMT_I420:
 417         case IMGFMT_UYVY:
 418         case IMGFMT_YUY2:
 419         case IMGFMT_RGB32:
 420         case IMGFMT_RGB24:
 421         case IMGFMT_BGR32:
 422         case IMGFMT_BGR24:
 423         case IMGFMT_BGR16:
 424         case IMGFMT_BGR15:
 425             break;
 426         default:
 427             mp_tmsg(MSGT_TV, MSGL_ERR,
 428                         "==================================================================\n"\
 429                         " WARNING: UNTESTED OR UNKNOWN OUTPUT IMAGE FORMAT REQUESTED (0x%x)\n"\
 430                         " This may cause buggy playback or program crash! Bug reports will\n"\
 431                         " be ignored! You should try again with YV12 (which is the default\n"\
 432                         " colorspace) and read the documentation!\n"\
 433                         "==================================================================\n"
 434                 ,tvh->tv_param->outfmt);
 435     }
 436     funcs->control(tvh->priv, TVI_CONTROL_VID_SET_FORMAT, &tvh->tv_param->outfmt);
 437     }
 438
 439     /* set some params got from cmdline */
 440     funcs->control(tvh->priv, TVI_CONTROL_SPC_SET_INPUT, &tvh->tv_param->input);
 441
 442 #if defined(CONFIG_TV_V4L2) || defined(CONFIG_TV_DSHOW)
 443     if (0
 444 #ifdef CONFIG_TV_V4L2
 445     || (!strcmp(tvh->tv_param->driver, "v4l2") && tvh->tv_param->normid >= 0)
 446 #endif
 447 #ifdef CONFIG_TV_DSHOW
 448     || (!strcmp(tvh->tv_param->driver, "dshow") && tvh->tv_param->normid >= 0)
 449 #endif
 450     )
 451         tv_set_norm_i(tvh, tvh->tv_param->normid);
 452     else
 453 #endif
 454     tv_set_norm(tvh,tvh->tv_param->norm);
 455
 456 #ifdef CONFIG_TV_V4L1
 457     if ( tvh->tv_param->mjpeg )
 458     {
 459       /* set width to expected value */
 460       if (tvh->tv_param->width == -1)
 461         {
 462           tvh->tv_param->width = 704/tvh->tv_param->decimation;
 463         }
 464       if (tvh->tv_param->height == -1)
 465         {
 466           if ( tvh->norm != TV_NORM_NTSC )
 467             tvh->tv_param->height = 576/tvh->tv_param->decimation;
 468           else
 469             tvh->tv_param->height = 480/tvh->tv_param->decimation;
 470         }
 471       mp_tmsg(MSGT_TV, MSGL_INFO,
 472                "  MJP: width %d height %d\n", tvh->tv_param->width, tvh->tv_param->height);
 473     }
 474 #endif
 475
 476     /* limits on w&h are norm-dependent -- JM */
 477     if (tvh->tv_param->width != -1 && tvh->tv_param->height != -1) {
 478         // first tell the driver both width and height, some drivers do not support setting them independently.
 479         int dim[2];
 480         dim[0] = tvh->tv_param->width; dim[1] = tvh->tv_param->height;
 481         funcs->control(tvh->priv, TVI_CONTROL_VID_SET_WIDTH_HEIGHT, dim);
 482     }
 483     /* set width */
 484     if (tvh->tv_param->width != -1)
 485     {
 486         if (funcs->control(tvh->priv, TVI_CONTROL_VID_CHK_WIDTH, &tvh->tv_param->width) == TVI_CONTROL_TRUE)
 487             funcs->control(tvh->priv, TVI_CONTROL_VID_SET_WIDTH, &tvh->tv_param->width);
 488         else
 489         {
 490             mp_tmsg(MSGT_TV, MSGL_ERR, "Unable to set requested width: %d\n", tvh->tv_param->width);
 491             funcs->control(tvh->priv, TVI_CONTROL_VID_GET_WIDTH, &tvh->tv_param->width);
 492         }
 493     }
 494
 495     /* set height */
 496     if (tvh->tv_param->height != -1)
 497     {
 498         if (funcs->control(tvh->priv, TVI_CONTROL_VID_CHK_HEIGHT, &tvh->tv_param->height) == TVI_CONTROL_TRUE)
 499             funcs->control(tvh->priv, TVI_CONTROL_VID_SET_HEIGHT, &tvh->tv_param->height);
 500         else
 501         {
 502             mp_tmsg(MSGT_TV, MSGL_ERR, "Unable to set requested height: %d\n", tvh->tv_param->height);
 503             funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HEIGHT, &tvh->tv_param->height);
 504         }
 505     }
 506
 507     if (funcs->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) != TVI_CONTROL_TRUE)
 508     {
 509         mp_tmsg(MSGT_TV, MSGL_WARN, "Selected input hasn't got a tuner!\n");
 510         goto done;
 511     }
 512
 513     /* select channel list */
 514     for (i = 0; chanlists[i].name != NULL; i++)
 515     {
 516         if (!strcasecmp(chanlists[i].name, tvh->tv_param->chanlist))
 517         {
 518             tvh->chanlist = i;
 519             tvh->chanlist_s = chanlists[i].list;
 520             break;
 521         }
 522     }
 523
 524     if (tvh->chanlist == -1)
 525         mp_tmsg(MSGT_TV, MSGL_WARN, "Unable to find selected channel list! (%s)\n",
 526             tvh->tv_param->chanlist);
 527     else
 528         mp_tmsg(MSGT_TV, MSGL_V, "Selected channel list: %s (including %d channels)\n",
 529             chanlists[tvh->chanlist].name, chanlists[tvh->chanlist].count);
 530
 531     if (tvh->tv_param->freq && tvh->tv_param->channel)
 532     {
 533         mp_tmsg(MSGT_TV, MSGL_WARN, "You can't set frequency and channel simultaneously!\n");
 534         goto done;
 535     }
 536
 537     /* Handle channel names */
 538     if (tvh->tv_param->channels) {
 539         parse_channels(tvh);
 540     } else
 541             tv_channel_last_real = malloc(5);
 542
 543     if (tv_channel_list) {
 544         int i;
 545         int channel = 0;
 546         if (tvh->tv_param->channel)
 547          {
 548            if (isdigit(*tvh->tv_param->channel))
 549                 /* if tvh->tv_param->channel begins with a digit interpret it as a number */
 550                 channel = atoi(tvh->tv_param->channel);
 551            else
 552               {
 553                 /* if tvh->tv_param->channel does not begin with a digit
 554                    set the first channel that contains tvh->tv_param->channel in its name */
 555
 556                 tv_channel_current = tv_channel_list;
 557                 while ( tv_channel_current ) {
 558                         if ( strstr(tv_channel_current->name, tvh->tv_param->channel) )
 559                           break;
 560                         tv_channel_current = tv_channel_current->next;
 561                         }
 562                 if ( !tv_channel_current ) tv_channel_current = tv_channel_list;
 563               }
 564          }
 565         else
 566                 channel = 1;
 567
 568         if ( channel ) {
 569         tv_channel_current = tv_channel_list;
 570         for (i = 1; i < channel; i++)
 571                 if (tv_channel_current->next)
 572                         tv_channel_current = tv_channel_current->next;
 573         }
 574
 575         mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n", tv_channel_current->number,
 576                         tv_channel_current->name, (float)tv_channel_current->freq/1000);
 577         tv_set_norm_i(tvh, tv_channel_current->norm);
 578         tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
 579         tv_channel_last = tv_channel_current;
 580     } else {
 581     /* we need to set frequency */
 582     if (tvh->tv_param->freq)
 583     {
 584         unsigned long freq = atof(tvh->tv_param->freq)*16;
 585
 586         /* set freq in MHz */
 587         funcs->control(tvh->priv, TVI_CONTROL_TUN_SET_FREQ, &freq);
 588
 589         funcs->control(tvh->priv, TVI_CONTROL_TUN_GET_FREQ, &freq);
 590         mp_tmsg(MSGT_TV, MSGL_V, "Selected frequency: %lu (%.3f)\n",
 591             freq, (float)freq/16);
 592     }
 593
 594             if (tvh->tv_param->channel) {
 595         struct CHANLIST cl;
 596
 597         mp_tmsg(MSGT_TV, MSGL_V, "Requested channel: %s\n", tvh->tv_param->channel);
 598         for (i = 0; i < chanlists[tvh->chanlist].count; i++)
 599         {
 600             cl = tvh->chanlist_s[i];
 601                     //  printf("count%d: name: %s, freq: %d\n",
 602                     //  i, cl.name, cl.freq);
 603             if (!strcasecmp(cl.name, tvh->tv_param->channel))
 604             {
 605                         strcpy(tv_channel_last_real, cl.name);
 606                 tvh->channel = i;
 607                 mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
 608                     cl.name, (float)cl.freq/1000);
 609                 tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
 610                 break;
 611             }
 612         }
 613     }
 614     }
 615
 616     /* grep frequency in chanlist */
 617     {
 618         unsigned long i2;
 619         int freq;
 620
 621         tv_get_freq(tvh, &i2);
 622
 623         freq = (int) (((float)(i2/16))*1000)+250;
 624
 625         for (i = 0; i < chanlists[tvh->chanlist].count; i++)
 626         {
 627             if (tvh->chanlist_s[i].freq == freq)
 628             {
 629                 tvh->channel = i+1;
 630                 break;
 631             }
 632         }
 633     }
 634
 635 done:
 636     /* also start device! */
 637         return 1;
 638 }
 639
 640 static tvi_handle_t *tv_begin(tv_param_t* tv_param)
 641 {
 642     int i;
 643     tvi_handle_t* h;
 644     if(tv_param->driver && !strcmp(tv_param->driver,"help")){
 645         mp_tmsg(MSGT_TV,MSGL_INFO,"Available drivers:\n");
 646         for(i=0;tvi_driver_list[i];i++){
 647             mp_msg(MSGT_TV,MSGL_INFO," %s\t%s",tvi_driver_list[i]->short_name,tvi_driver_list[i]->name);
 648             if(tvi_driver_list[i]->comment)
 649                 mp_msg(MSGT_TV,MSGL_INFO," (%s)",tvi_driver_list[i]->comment);
 650             mp_msg(MSGT_TV,MSGL_INFO,"\n");
 651         }
 652         return NULL;
 653     }
 654
 655     for(i=0;tvi_driver_list[i];i++){
 656         if (!tv_param->driver || !strcmp(tvi_driver_list[i]->short_name, tv_param->driver)){
 657             h=tvi_driver_list[i]->tvi_init(tv_param);
 658             //Requested driver initialization failed
 659             if (!h && tv_param->driver)
 660                 return NULL;
 661             //Driver initialization failed during autodetection process.
 662             if (!h)
 663                 continue;
 664
 665             h->tv_param=tv_param;
 666             mp_tmsg(MSGT_TV, MSGL_INFO, "Selected driver: %s\n name: %s\n author: %s\n comment: %s\n", tvi_driver_list[i]->short_name,
 667             tvi_driver_list[i]->name,
 668             tvi_driver_list[i]->author,
 669             tvi_driver_list[i]->comment?tvi_driver_list[i]->comment:"");
 670             tv_param->driver=strdup(tvi_driver_list[i]->short_name);
 671             return h;
 672         }
 673     }
 674
 675     if(tv_param->driver)
 676         mp_tmsg(MSGT_TV, MSGL_ERR, "No such driver: %s\n", tv_param->driver);
 677     else
 678         mp_tmsg(MSGT_TV, MSGL_ERR, "TV driver autodetection failed.\n");
 679     return NULL;
 680 }
 681
 682 static int tv_uninit(tvi_handle_t *tvh)
 683 {
 684     int res;
 685     if(!tvh) return 1;
 686     if (!tvh->priv) return 1;
 687     res=tvh->functions->uninit(tvh->priv);
 688     if(res) {
 689         free(tvh->priv);
 690         tvh->priv=NULL;
 691     }
 692     return res;
 693 }
 694
 695 static demuxer_t* demux_open_tv(demuxer_t *demuxer)
 696 {
 697     tvi_handle_t *tvh;
 698     sh_video_t *sh_video;
 699     sh_audio_t *sh_audio = NULL;
 700     const tvi_functions_t *funcs;
 701
 702     demuxer->priv=NULL;
 703     if(!(tvh=tv_begin(demuxer->stream->priv))) return NULL;
 704     if (!tvh->functions->init(tvh->priv)) return NULL;
 705
 706     tvh->demuxer = demuxer;
 707     tvh->functions->control(tvh->priv,TVI_CONTROL_VBI_INIT,
 708                             &(tvh->tv_param->teletext.device));
 709     tvh->functions->control(tvh->priv,TVI_CONTROL_GET_VBI_PTR,
 710                             &demuxer->teletext);
 711
 712     if (!open_tv(tvh)){
 713         tv_uninit(tvh);
 714         return NULL;
 715     }
 716     funcs = tvh->functions;
 717     demuxer->priv=tvh;
 718
 719     sh_video = new_sh_video(demuxer, 0);
 720
 721     /* get IMAGE FORMAT */
 722     funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FORMAT, &sh_video->format);
 723 //    if (IMGFMT_IS_RGB(sh_video->format) || IMGFMT_IS_BGR(sh_video->format))
 724 //      sh_video->format = 0x0;
 725
 726     /* set FPS and FRAMETIME */
 727
 728     if(!sh_video->fps)
 729     {
 730         float tmp;
 731         if (funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FPS, &tmp) != TVI_CONTROL_TRUE)
 732              sh_video->fps = 25.0f; /* on PAL */
 733         else sh_video->fps = tmp;
 734     }
 735
 736     if (tvh->tv_param->fps != -1.0f)
 737         sh_video->fps = tvh->tv_param->fps;
 738
 739     sh_video->frametime = 1.0f/sh_video->fps;
 740
 741     /* If playback only mode, go to immediate mode, fail silently */
 742     if(tvh->tv_param->immediate == 1)
 743         {
 744         funcs->control(tvh->priv, TVI_CONTROL_IMMEDIATE, 0);
 745         tvh->tv_param->noaudio = 1;
 746         }
 747
 748     /* disable TV audio if -nosound is present */
 749     if (!demuxer->audio || demuxer->audio->id == -2) {
 750         tvh->tv_param->noaudio = 1;
 751     }
 752
 753     /* set width */
 754     funcs->control(tvh->priv, TVI_CONTROL_VID_GET_WIDTH, &sh_video->disp_w);
 755
 756     /* set height */
 757     funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HEIGHT, &sh_video->disp_h);
 758
 759     demuxer->video->sh = sh_video;
 760     sh_video->ds = demuxer->video;
 761     demuxer->video->id = 0;
 762     demuxer->seekable = 0;
 763
 764     /* here comes audio init */
 765     if (tvh->tv_param->noaudio == 0 && funcs->control(tvh->priv, TVI_CONTROL_IS_AUDIO, 0) == TVI_CONTROL_TRUE)
 766     {
 767         int audio_format;
 768         int sh_audio_format;
 769         char buf[128];
 770
 771         /* yeah, audio is present */
 772
 773         funcs->control(tvh->priv, TVI_CONTROL_AUD_SET_SAMPLERATE,
 774                                   &tvh->tv_param->audiorate);
 775
 776         if (funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_FORMAT, &audio_format) != TVI_CONTROL_TRUE)
 777             goto no_audio;
 778
 779         switch(audio_format)
 780         {
 781             case AF_FORMAT_U8:
 782             case AF_FORMAT_S8:
 783             case AF_FORMAT_U16_LE:
 784             case AF_FORMAT_U16_BE:
 785             case AF_FORMAT_S16_LE:
 786             case AF_FORMAT_S16_BE:
 787             case AF_FORMAT_S32_LE:
 788             case AF_FORMAT_S32_BE:
 789                 sh_audio_format = 0x1; /* PCM */
 790                 break;
 791             case AF_FORMAT_IMA_ADPCM:
 792             case AF_FORMAT_MU_LAW:
 793             case AF_FORMAT_A_LAW:
 794             case AF_FORMAT_MPEG2:
 795             default:
 796                 mp_tmsg(MSGT_TV, MSGL_ERR, "Audio type '%s (%x)' unsupported!\n",
 797                     af_fmt2str(audio_format, buf, 128), audio_format);
 798                 goto no_audio;
 799         }
 800
 801         sh_audio = new_sh_audio(demuxer, 0);
 802
 803         funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_SAMPLERATE,
 804                    &sh_audio->samplerate);
 805         funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_SAMPLESIZE,
 806                    &sh_audio->samplesize);
 807         funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_CHANNELS,
 808                    &sh_audio->channels);
 809
 810         sh_audio->format = sh_audio_format;
 811         sh_audio->sample_format = audio_format;
 812
 813         sh_audio->i_bps = sh_audio->o_bps =
 814             sh_audio->samplerate * sh_audio->samplesize *
 815             sh_audio->channels;
 816
 817         // emulate WF for win32 codecs:
 818         sh_audio->wf = malloc(sizeof(WAVEFORMATEX));
 819         sh_audio->wf->wFormatTag = sh_audio->format;
 820         sh_audio->wf->nChannels = sh_audio->channels;
 821         sh_audio->wf->wBitsPerSample = sh_audio->samplesize * 8;
 822         sh_audio->wf->nSamplesPerSec = sh_audio->samplerate;
 823         sh_audio->wf->nBlockAlign = sh_audio->samplesize * sh_audio->channels;
 824         sh_audio->wf->nAvgBytesPerSec = sh_audio->i_bps;
 825
 826         mp_tmsg(MSGT_DECVIDEO, MSGL_V, "  TV audio: %d channels, %d bits, %d Hz\n",
 827           sh_audio->wf->nChannels, sh_audio->wf->wBitsPerSample,
 828           sh_audio->wf->nSamplesPerSec);
 829
 830         demuxer->audio->sh = sh_audio;
 831         sh_audio->ds = demuxer->audio;
 832         demuxer->audio->id = 0;
 833     }
 834 no_audio:
 835
 836     if(!(funcs->start(tvh->priv))){
 837         // start failed :(
 838         tv_uninit(tvh);
 839         return NULL;
 840     }
 841
 842     /* set color eq */
 843     tv_set_color_options(tvh, TV_COLOR_BRIGHTNESS, tvh->tv_param->brightness);
 844     tv_set_color_options(tvh, TV_COLOR_HUE, tvh->tv_param->hue);
 845     tv_set_color_options(tvh, TV_COLOR_SATURATION, tvh->tv_param->saturation);
 846     tv_set_color_options(tvh, TV_COLOR_CONTRAST, tvh->tv_param->contrast);
 847
 848     if(tvh->tv_param->gain!=-1)
 849         if(funcs->control(tvh->priv,TVI_CONTROL_VID_SET_GAIN,&tvh->tv_param->gain)!=TVI_CONTROL_TRUE)
 850             mp_msg(MSGT_TV,MSGL_WARN,"Unable to set gain control!\n");
 851
 852     teletext_control(demuxer->teletext,TV_VBI_CONTROL_RESET,
 853                      &tvh->tv_param->teletext);
 854
 855     return demuxer;
 856 }
 857
 858 static void demux_close_tv(demuxer_t *demuxer)
 859 {
 860     tvi_handle_t *tvh=(tvi_handle_t*)(demuxer->priv);
 861     if (!tvh) return;
 862     tv_uninit(tvh);
 863     free(tvh);
 864     demuxer->priv=NULL;
 865     demuxer->teletext=NULL;
 866 }
 867
 868 /* utilities for mplayer (not mencoder!!) */
 869 int tv_set_color_options(tvi_handle_t *tvh, int opt, int value)
 870 {
 871     const tvi_functions_t *funcs = tvh->functions;
 872
 873     switch(opt)
 874     {
 875         case TV_COLOR_BRIGHTNESS:
 876             return funcs->control(tvh->priv, TVI_CONTROL_VID_SET_BRIGHTNESS, &value);
 877         case TV_COLOR_HUE:
 878             return funcs->control(tvh->priv, TVI_CONTROL_VID_SET_HUE, &value);
 879         case TV_COLOR_SATURATION:
 880             return funcs->control(tvh->priv, TVI_CONTROL_VID_SET_SATURATION, &value);
 881         case TV_COLOR_CONTRAST:
 882             return funcs->control(tvh->priv, TVI_CONTROL_VID_SET_CONTRAST, &value);
 883         default:
 884             mp_tmsg(MSGT_TV, MSGL_WARN, "Unknown color option (%d) specified!\n", opt);
 885     }
 886
 887     return TVI_CONTROL_UNKNOWN;
 888 }
 889
 890 int tv_get_color_options(tvi_handle_t *tvh, int opt, int* value)
 891 {
 892     const tvi_functions_t *funcs = tvh->functions;
 893
 894     switch(opt)
 895     {
 896         case TV_COLOR_BRIGHTNESS:
 897             return funcs->control(tvh->priv, TVI_CONTROL_VID_GET_BRIGHTNESS, value);
 898         case TV_COLOR_HUE:
 899             return funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HUE, value);
 900         case TV_COLOR_SATURATION:
 901             return funcs->control(tvh->priv, TVI_CONTROL_VID_GET_SATURATION, value);
 902         case TV_COLOR_CONTRAST:
 903             return funcs->control(tvh->priv, TVI_CONTROL_VID_GET_CONTRAST, value);
 904         default:
 905             mp_tmsg(MSGT_TV, MSGL_WARN, "Unknown color option (%d) specified!\n", opt);
 906     }
 907
 908     return TVI_CONTROL_UNKNOWN;
 909 }
 910
 911 int tv_get_freq(tvi_handle_t *tvh, unsigned long *freq)
 912 {
 913     if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) == TVI_CONTROL_TRUE)
 914     {
 915         tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_GET_FREQ, freq);
 916         mp_tmsg(MSGT_TV, MSGL_V, "Current frequency: %lu (%.3f)\n",
 917             *freq, (float)*freq/16);
 918     }
 919     return 1;
 920 }
 921
 922 int tv_set_freq(tvi_handle_t *tvh, unsigned long freq)
 923 {
 924     if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) == TVI_CONTROL_TRUE)
 925     {
 926 //      unsigned long freq = atof(tvh->tv_param->freq)*16;
 927
 928         /* set freq in MHz */
 929         tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_FREQ, &freq);
 930
 931         tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_GET_FREQ, &freq);
 932         mp_tmsg(MSGT_TV, MSGL_V, "Current frequency: %lu (%.3f)\n",
 933             freq, (float)freq/16);
 934     }
 935     teletext_control(tvh->demuxer->teletext,TV_VBI_CONTROL_RESET,
 936                      &tvh->tv_param->teletext);
 937     return 1;
 938 }
 939
 940 int tv_get_signal(tvi_handle_t *tvh)
 941 {
 942     int signal=0;
 943     if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) != TVI_CONTROL_TRUE ||
 944         tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_GET_SIGNAL, &signal)!=TVI_CONTROL_TRUE)
 945         return 0;
 946
 947     return signal;
 948 }
 949
 950 /*****************************************************************
 951  * \brief tune current frequency by step_interval value
 952  * \parameter step_interval increment value in 1/16 MHz
 953  * \note frequency is rounded to 1/16 MHz value
 954  * \return 1
 955  *
 956  */
 957 int tv_step_freq(tvi_handle_t* tvh, float step_interval){
 958     unsigned long frequency;
 959
 960     tvh->tv_param->scan=0;
 961     tv_get_freq(tvh,&frequency);
 962     frequency+=step_interval;
 963     return tv_set_freq(tvh,frequency);
 964 }
 965
 966 int tv_step_channel_real(tvi_handle_t *tvh, int direction)
 967 {
 968     struct CHANLIST cl;
 969
 970     tvh->tv_param->scan=0;
 971     if (direction == TV_CHANNEL_LOWER)
 972     {
 973         if (tvh->channel-1 >= 0)
 974         {
 975             strcpy(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
 976             cl = tvh->chanlist_s[--tvh->channel];
 977             mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
 978                 cl.name, (float)cl.freq/1000);
 979             tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
 980         }
 981     }
 982
 983     if (direction == TV_CHANNEL_HIGHER)
 984     {
 985         if (tvh->channel+1 < chanlists[tvh->chanlist].count)
 986         {
 987             strcpy(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
 988             cl = tvh->chanlist_s[++tvh->channel];
 989             mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
 990                 cl.name, (float)cl.freq/1000);
 991             tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
 992         }
 993     }
 994     return 1;
 995 }
 996
 997 int tv_step_channel(tvi_handle_t *tvh, int direction) {
 998         tvh->tv_param->scan=0;
 999         if (tv_channel_list) {
1000                 if (direction == TV_CHANNEL_HIGHER) {
1001                         tv_channel_last = tv_channel_current;
1002                         if (tv_channel_current->next)
1003                                 tv_channel_current = tv_channel_current->next;
1004                         else
1005                                 tv_channel_current = tv_channel_list;
1006
1007                                 tv_set_norm_i(tvh, tv_channel_current->norm);
1008                                 tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
1009                                 mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n",
1010                         tv_channel_current->number, tv_channel_current->name, (float)tv_channel_current->freq/1000);
1011                 }
1012                 if (direction == TV_CHANNEL_LOWER) {
1013                         tv_channel_last = tv_channel_current;
1014                         if (tv_channel_current->prev)
1015                                 tv_channel_current = tv_channel_current->prev;
1016                         else
1017                                 while (tv_channel_current->next)
1018                                         tv_channel_current = tv_channel_current->next;
1019                                 tv_set_norm_i(tvh, tv_channel_current->norm);
1020                                 tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
1021                                 mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n",
1022                         tv_channel_current->number, tv_channel_current->name, (float)tv_channel_current->freq/1000);
1023                 }
1024         } else tv_step_channel_real(tvh, direction);
1025         return 1;
1026 }
1027
1028 int tv_set_channel_real(tvi_handle_t *tvh, char *channel) {
1029         int i;
1030         struct CHANLIST cl;
1031
1032         tvh->tv_param->scan=0;
1033         strcpy(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
1034         for (i = 0; i < chanlists[tvh->chanlist].count; i++)
1035         {
1036             cl = tvh->chanlist_s[i];
1037 //          printf("count%d: name: %s, freq: %d\n",
1038 //              i, cl.name, cl.freq);
1039             if (!strcasecmp(cl.name, channel))
1040             {
1041                 tvh->channel = i;
1042                 mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
1043                     cl.name, (float)cl.freq/1000);
1044                 tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
1045                 break;
1046             }
1047         }
1048         return 1;
1049 }
1050
1051 int tv_set_channel(tvi_handle_t *tvh, char *channel) {
1052         int i, channel_int;
1053
1054         tvh->tv_param->scan=0;
1055         if (tv_channel_list) {
1056                 tv_channel_last = tv_channel_current;
1057                 channel_int = atoi(channel);
1058                 tv_channel_current = tv_channel_list;
1059                 for (i = 1; i < channel_int; i++)
1060                         if (tv_channel_current->next)
1061                                 tv_channel_current = tv_channel_current->next;
1062                 mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n", tv_channel_current->number,
1063                                 tv_channel_current->name, (float)tv_channel_current->freq/1000);
1064                 tv_set_norm_i(tvh, tv_channel_current->norm);
1065                 tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
1066         } else tv_set_channel_real(tvh, channel);
1067         return 1;
1068 }
1069
1070 int tv_last_channel(tvi_handle_t *tvh) {
1071
1072         tvh->tv_param->scan=0;
1073         if (tv_channel_list) {
1074                 tv_channels_t *tmp;
1075
1076                 tmp = tv_channel_last;
1077                 tv_channel_last = tv_channel_current;
1078                 tv_channel_current = tmp;
1079
1080                 mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n", tv_channel_current->number,
1081                                 tv_channel_current->name, (float)tv_channel_current->freq/1000);
1082                 tv_set_norm_i(tvh, tv_channel_current->norm);
1083                 tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
1084         } else {
1085                 int i;
1086                 struct CHANLIST cl;
1087
1088                 for (i = 0; i < chanlists[tvh->chanlist].count; i++)
1089                 {
1090                     cl = tvh->chanlist_s[i];
1091                     if (!strcasecmp(cl.name, tv_channel_last_real))
1092                     {
1093                         strcpy(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
1094                         tvh->channel = i;
1095                         mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
1096                             cl.name, (float)cl.freq/1000);
1097                         tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
1098                         break;
1099                     }
1100                 }
1101         }
1102         return 1;
1103 }
1104
1105 int tv_step_norm(tvi_handle_t *tvh)
1106 {
1107   tvh->norm++;
1108   if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM,
1109                               &tvh->norm) != TVI_CONTROL_TRUE) {
1110     tvh->norm = 0;
1111     if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM,
1112                                 &tvh->norm) != TVI_CONTROL_TRUE) {
1113       mp_tmsg(MSGT_TV, MSGL_ERR, "Error: Cannot set norm!\n");
1114       return 0;
1115     }
1116   }
1117     teletext_control(tvh->demuxer->teletext,TV_VBI_CONTROL_RESET,
1118                      &tvh->tv_param->teletext);
1119     return 1;
1120 }
1121
1122 int tv_step_chanlist(tvi_handle_t *tvh)
1123 {
1124     return 1;
1125 }
1126
1127 demuxer_desc_t demuxer_desc_tv = {
1128   "Tv card demuxer",
1129   "tv",
1130   "TV",
1131   "Alex Beregszaszi, Charles R. Henrich",
1132   "?",
1133   DEMUXER_TYPE_TV,
1134   0, // no autodetect
1135   NULL,
1136   demux_tv_fill_buffer,
1137   demux_open_tv,
1138   demux_close_tv,
1139   NULL,
1140   NULL
1141 };