stream/tv.c

   1 /*
   2  TV Interface for MPlayer
   3
   4  (C) Alex Beregszaszi
   5
   6  API idea based on libvo2
   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 */
  12
  13 #include <stdio.h>
  14 #include <stdlib.h>
  15 #include <unistd.h>
  16 #include <string.h>
  17 #include <ctype.h>
  18 #include <sys/time.h>
  19
  20 #include "config.h"
  21
  22
  23 #include "mp_msg.h"
  24 #include "help_mp.h"
  25
  26 #include "stream.h"
  27 #include "libmpdemux/demuxer.h"
  28 #include "libmpdemux/stheader.h"
  29
  30 #include "libaf/af_format.h"
  31 #include "libmpcodecs/img_format.h"
  32 #include "libmpcodecs/dec_teletext.h"
  33 #include "libavutil/avstring.h"
  34 #include "osdep/timer.h"
  35
  36 #include "tv.h"
  37
  38 #include "frequencies.h"
  39
  40 tv_channels_t *tv_channel_list;
  41 tv_channels_t *tv_channel_current, *tv_channel_last;
  42 char *tv_channel_last_real;
  43
  44 /* enumerating drivers (like in stream.c) */
  45 extern const tvi_info_t tvi_info_dummy;
  46 extern const tvi_info_t tvi_info_dshow;
  47 extern const tvi_info_t tvi_info_v4l;
  48 extern const tvi_info_t tvi_info_v4l2;
  49 extern const tvi_info_t tvi_info_bsdbt848;
  50
  51 /** List of drivers in autodetection order */
  52 static const tvi_info_t* tvi_driver_list[]={
  53 #ifdef CONFIG_TV_V4L2
  54     &tvi_info_v4l2,
  55 #endif
  56 #ifdef CONFIG_TV_V4L1
  57     &tvi_info_v4l,
  58 #endif
  59 #ifdef CONFIG_TV_BSDBT848
  60     &tvi_info_bsdbt848,
  61 #endif
  62 #ifdef CONFIG_TV_DSHOW
  63     &tvi_info_dshow,
  64 #endif
  65     &tvi_info_dummy,
  66     NULL
  67 };
  68
  69 void tv_start_scan(tvi_handle_t *tvh, int start)
  70 {
  71     mp_msg(MSGT_TV,MSGL_INFO,"start scan\n");
  72     tvh->tv_param->scan=start?1:0;
  73 }
  74
  75 static void tv_scan(tvi_handle_t *tvh)
  76 {
  77     unsigned int now;
  78     struct CHANLIST cl;
  79     tv_channels_t *tv_channel_tmp=NULL;
  80     tv_channels_t *tv_channel_add=NULL;
  81     tv_scan_t* scan;
  82     int found=0, index=1;
  83
  84     //Channel scanner without tuner is useless and causes crash due to uninitialized chanlist_s
  85     if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) != TVI_CONTROL_TRUE)
  86     {
  87         mp_tmsg(MSGT_TV, MSGL_WARN, "Channel scanner is not available without tuner\n");
  88         tvh->tv_param->scan=0;
  89         return;
  90     }
  91
  92     scan = tvh->scan;
  93     now=GetTimer();
  94     if (!scan) {
  95         scan=calloc(1,sizeof(tv_scan_t));
  96         tvh->scan=scan;
  97         cl = tvh->chanlist_s[scan->channel_num];
  98         tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
  99         scan->scan_timer=now+1e6*tvh->tv_param->scan_period;
 100     }
 101     if(scan->scan_timer>now)
 102         return;
 103
 104     if (tv_get_signal(tvh)>tvh->tv_param->scan_threshold) {
 105         cl = tvh->chanlist_s[scan->channel_num];
 106         tv_channel_tmp=tv_channel_list;
 107         while (tv_channel_tmp) {
 108             index++;
 109             if (cl.freq==tv_channel_tmp->freq){
 110                 found=1;
 111                 break;
 112             }
 113             tv_channel_add=tv_channel_tmp;
 114             tv_channel_tmp=tv_channel_tmp->next;
 115         }
 116         if (!found) {
 117             mp_msg(MSGT_TV, MSGL_INFO, "Found new channel: %s (#%d). \n",cl.name,index);
 118             scan->new_channels++;
 119             tv_channel_tmp = malloc(sizeof(tv_channels_t));
 120             tv_channel_tmp->index=index;
 121             tv_channel_tmp->next=NULL;
 122             tv_channel_tmp->prev=tv_channel_add;
 123             tv_channel_tmp->freq=cl.freq;
 124             snprintf(tv_channel_tmp->name,sizeof(tv_channel_tmp->name),"ch%d",index);
 125             strncpy(tv_channel_tmp->number, cl.name, 5);
 126             tv_channel_tmp->number[4]='\0';
 127             if (!tv_channel_list)
 128                 tv_channel_list=tv_channel_tmp;
 129             else {
 130                 tv_channel_add->next=tv_channel_tmp;
 131                 tv_channel_list->prev=tv_channel_tmp;
 132             }
 133         }else
 134             mp_msg(MSGT_TV, MSGL_INFO, "Found existing channel: %s-%s.\n",
 135                 tv_channel_tmp->number,tv_channel_tmp->name);
 136     }
 137     scan->channel_num++;
 138     scan->scan_timer=now+1e6*tvh->tv_param->scan_period;
 139     if (scan->channel_num>=chanlists[tvh->chanlist].count) {
 140         tvh->tv_param->scan=0;
 141         mp_msg(MSGT_TV, MSGL_INFO, "TV scan end. Found %d new channels.\n", scan->new_channels);
 142         tv_channel_tmp=tv_channel_list;
 143         if(tv_channel_tmp){
 144             mp_msg(MSGT_TV,MSGL_INFO,"channels=");
 145             while(tv_channel_tmp){
 146                 mp_msg(MSGT_TV,MSGL_INFO,"%s-%s",tv_channel_tmp->number,tv_channel_tmp->name);
 147                 if(tv_channel_tmp->next)
 148                     mp_msg(MSGT_TV,MSGL_INFO,",");
 149                 tv_channel_tmp=tv_channel_tmp->next;
 150             }
 151             mp_msg(MSGT_TV, MSGL_INFO, "\n");
 152         }
 153         if (!tv_channel_current) tv_channel_current=tv_channel_list;
 154         if (tv_channel_current)
 155             tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
 156         free(tvh->scan);
 157         tvh->scan=NULL;
 158     }else{
 159         cl = tvh->chanlist_s[scan->channel_num];
 160         tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
 161         mp_msg(MSGT_TV, MSGL_INFO, "Trying: %s (%.2f). \n",cl.name,1e-3*cl.freq);
 162     }
 163 }
 164
 165 /* ================== DEMUX_TV ===================== */
 166 /*
 167   Return value:
 168     0 = EOF(?) or no stream
 169     1 = successfully read a packet
 170 */
 171 /* fill demux->video and demux->audio */
 172
 173 static int demux_tv_fill_buffer(demuxer_t *demux, demux_stream_t *ds)
 174 {
 175     tvi_handle_t *tvh=(tvi_handle_t*)(demux->priv);
 176     demux_packet_t* dp;
 177     unsigned int len=0;
 178
 179     /* ================== ADD AUDIO PACKET =================== */
 180
 181     if (ds==demux->audio && tvh->tv_param->noaudio == 0 &&
 182         tvh->functions->control(tvh->priv,
 183                                 TVI_CONTROL_IS_AUDIO, 0) == TVI_CONTROL_TRUE)
 184         {
 185         len = tvh->functions->get_audio_framesize(tvh->priv);
 186
 187         dp=new_demux_packet(len);
 188         dp->flags|=1; /* Keyframe */
 189         dp->pts=tvh->functions->grab_audio_frame(tvh->priv, dp->buffer,len);
 190         ds_add_packet(demux->audio,dp);
 191         }
 192
 193     /* ================== ADD VIDEO PACKET =================== */
 194
 195     if (ds==demux->video && tvh->functions->control(tvh->priv,
 196                             TVI_CONTROL_IS_VIDEO, 0) == TVI_CONTROL_TRUE)
 197         {
 198                 len = tvh->functions->get_video_framesize(tvh->priv);
 199         dp=new_demux_packet(len);
 200                 dp->flags|=1; /* Keyframe */
 201                 dp->pts=tvh->functions->grab_video_frame(tvh->priv, dp->buffer, len);
 202                 ds_add_packet(demux->video,dp);
 203          }
 204
 205     if (tvh->tv_param->scan) tv_scan(tvh);
 206     return 1;
 207 }
 208
 209 static int norm_from_string(tvi_handle_t *tvh, char* norm)
 210 {
 211     const tvi_functions_t *funcs = tvh->functions;
 212     char str[20];
 213     int ret;
 214
 215     strncpy(str, norm, sizeof(str)-1);
 216     str[sizeof(str)-1] = '\0';
 217     ret=funcs->control(tvh->priv, TVI_CONTROL_SPC_GET_NORMID, str);
 218
 219     if(ret==TVI_CONTROL_TRUE)
 220         return *(int *)str;
 221
 222     if(ret!=TVI_CONTROL_UNKNOWN)
 223     {
 224         mp_tmsg(MSGT_TV, MSGL_WARN, "tv.c: norm_from_string(%s): Bogus norm parameter, setting %s.\n", norm,"default");
 225         return 0;
 226     }
 227
 228     if (!strcasecmp(norm, "pal"))
 229         return TV_NORM_PAL;
 230     else if (!strcasecmp(norm, "ntsc"))
 231         return TV_NORM_NTSC;
 232     else if (!strcasecmp(norm, "secam"))
 233         return TV_NORM_SECAM;
 234     else if (!strcasecmp(norm, "palnc"))
 235         return TV_NORM_PALNC;
 236     else if (!strcasecmp(norm, "palm"))
 237         return TV_NORM_PALM;
 238     else if (!strcasecmp(norm, "paln"))
 239         return TV_NORM_PALN;
 240     else if (!strcasecmp(norm, "ntscjp"))
 241         return TV_NORM_NTSCJP;
 242     else {
 243         mp_tmsg(MSGT_TV, MSGL_WARN, "tv.c: norm_from_string(%s): Bogus norm parameter, setting %s.\n", norm, "PAL");
 244         return TV_NORM_PAL;
 245     }
 246 }
 247
 248 static void parse_channels(tvi_handle_t *tvh)
 249 {
 250     char** channels = tvh->tv_param->channels;
 251
 252     mp_tmsg(MSGT_TV, MSGL_INFO, "TV channel names detected.\n");
 253     tv_channel_list = malloc(sizeof(tv_channels_t));
 254     tv_channel_list->index=1;
 255     tv_channel_list->next=NULL;
 256     tv_channel_list->prev=NULL;
 257     tv_channel_current = tv_channel_list;
 258     tv_channel_current->norm = tvh->norm;
 259
 260     while (*channels) {
 261         char* tmp = *(channels++);
 262         char* sep = strchr(tmp,'-');
 263         int i;
 264         struct CHANLIST cl;
 265
 266         if (!sep) continue; // Wrong syntax, but mplayer should not crash
 267
 268         av_strlcpy(tv_channel_current->name, sep + 1,
 269                         sizeof(tv_channel_current->name));
 270         sep[0] = '\0';
 271         strncpy(tv_channel_current->number, tmp, 5);
 272         tv_channel_current->number[4]='\0';
 273
 274         while ((sep=strchr(tv_channel_current->name, '_')))
 275             sep[0] = ' ';
 276
 277         // if channel number is a number and larger than 1000 threat it as frequency
 278         // tmp still contain pointer to null-terminated string with channel number here
 279         if (atoi(tmp)>1000){
 280             tv_channel_current->freq=atoi(tmp);
 281         }else{
 282             tv_channel_current->freq = 0;
 283             for (i = 0; i < chanlists[tvh->chanlist].count; i++) {
 284                 cl = tvh->chanlist_s[i];
 285                 if (!strcasecmp(cl.name, tv_channel_current->number)) {
 286                     tv_channel_current->freq=cl.freq;
 287                     break;
 288                 }
 289             }
 290         }
 291         if (tv_channel_current->freq == 0)
 292             mp_tmsg(MSGT_TV, MSGL_ERR, "Couldn't find frequency for channel %s (%s)\n",
 293                             tv_channel_current->number, tv_channel_current->name);
 294         else {
 295           sep = strchr(tv_channel_current->name, '-');
 296           if ( !sep ) sep = strchr(tv_channel_current->name, '+');
 297
 298           if ( sep ) {
 299             i = atoi (sep+1);
 300             if ( sep[0] == '+' ) tv_channel_current->freq += i * 100;
 301             if ( sep[0] == '-' ) tv_channel_current->freq -= i * 100;
 302             sep[0] = '\0';
 303           }
 304
 305           sep = strchr(tv_channel_current->name, '=');
 306           if ( sep ) {
 307             tv_channel_current->norm = norm_from_string(tvh, sep+1);
 308             sep[0] = '\0';
 309           }
 310         }
 311
 312         /*mp_msg(MSGT_TV, MSGL_INFO, "-- Detected channel %s - %s (%5.3f)\n",
 313                         tv_channel_current->number, tv_channel_current->name,
 314                         (float)tv_channel_current->freq/1000);*/
 315
 316         tv_channel_current->next = malloc(sizeof(tv_channels_t));
 317         tv_channel_current->next->index = tv_channel_current->index + 1;
 318         tv_channel_current->next->prev = tv_channel_current;
 319         tv_channel_current->next->next = NULL;
 320         tv_channel_current = tv_channel_current->next;
 321         tv_channel_current->norm = tvh->norm;
 322     }
 323     if (tv_channel_current->prev)
 324         tv_channel_current->prev->next = NULL;
 325     free(tv_channel_current);
 326 }
 327
 328 int tv_set_norm(tvi_handle_t *tvh, char* norm)
 329 {
 330     tvh->norm = norm_from_string(tvh, norm);
 331
 332     mp_tmsg(MSGT_TV, MSGL_V, "Selected norm : %s\n", norm);
 333     if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM, &tvh->norm) != TVI_CONTROL_TRUE) {
 334         mp_tmsg(MSGT_TV, MSGL_ERR, "Error: Cannot set norm!\n");
 335         return 0;
 336     }
 337     teletext_control(tvh->demuxer->teletext,TV_VBI_CONTROL_RESET,
 338                      &tvh->tv_param->teletext);
 339     return 1;
 340 }
 341
 342 static int tv_set_norm_i(tvi_handle_t *tvh, int norm)
 343 {
 344    tvh->norm = norm;
 345
 346    mp_tmsg(MSGT_TV, MSGL_V, "Selected norm id: %d\n", norm);
 347    if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM, &tvh->norm) != TVI_CONTROL_TRUE) {
 348       mp_tmsg(MSGT_TV, MSGL_ERR, "Error: Cannot set norm!\n");
 349       return 0;
 350    }
 351
 352    teletext_control(tvh->demuxer->teletext,TV_VBI_CONTROL_RESET,
 353                     &tvh->tv_param->teletext);
 354    return 1;
 355 }
 356
 357 static int open_tv(tvi_handle_t *tvh)
 358 {
 359     int i;
 360     const tvi_functions_t *funcs = tvh->functions;
 361     int tv_fmt_list[] = {
 362       IMGFMT_YV12,
 363       IMGFMT_I420,
 364       IMGFMT_UYVY,
 365       IMGFMT_YUY2,
 366       IMGFMT_RGB32,
 367       IMGFMT_RGB24,
 368       IMGFMT_RGB16,
 369       IMGFMT_RGB15
 370     };
 371
 372     if (funcs->control(tvh->priv, TVI_CONTROL_IS_VIDEO, 0) != TVI_CONTROL_TRUE)
 373     {
 374         mp_tmsg(MSGT_TV, MSGL_ERR, "Error: No video input present!\n");
 375         return 0;
 376     }
 377
 378     if (tvh->tv_param->outfmt == -1)
 379       for (i = 0; i < sizeof (tv_fmt_list) / sizeof (*tv_fmt_list); i++)
 380         {
 381           tvh->tv_param->outfmt = tv_fmt_list[i];
 382           if (funcs->control (tvh->priv, TVI_CONTROL_VID_SET_FORMAT,
 383                               &tvh->tv_param->outfmt) == TVI_CONTROL_TRUE)
 384             break;
 385         }
 386     else
 387     {
 388     switch(tvh->tv_param->outfmt)
 389     {
 390         case IMGFMT_YV12:
 391         case IMGFMT_I420:
 392         case IMGFMT_UYVY:
 393         case IMGFMT_YUY2:
 394         case IMGFMT_RGB32:
 395         case IMGFMT_RGB24:
 396         case IMGFMT_BGR32:
 397         case IMGFMT_BGR24:
 398         case IMGFMT_BGR16:
 399         case IMGFMT_BGR15:
 400             break;
 401         default:
 402             mp_tmsg(MSGT_TV, MSGL_ERR,
 403                         "==================================================================\n"\
 404                         " WARNING: UNTESTED OR UNKNOWN OUTPUT IMAGE FORMAT REQUESTED (0x%x)\n"\
 405                         " This may cause buggy playback or program crash! Bug reports will\n"\
 406                         " be ignored! You should try again with YV12 (which is the default\n"\
 407                         " colorspace) and read the documentation!\n"\
 408                         "==================================================================\n"
 409                 ,tvh->tv_param->outfmt);
 410     }
 411     funcs->control(tvh->priv, TVI_CONTROL_VID_SET_FORMAT, &tvh->tv_param->outfmt);
 412     }
 413
 414     /* set some params got from cmdline */
 415     funcs->control(tvh->priv, TVI_CONTROL_SPC_SET_INPUT, &tvh->tv_param->input);
 416
 417 #if defined(CONFIG_TV_V4L2) || defined(CONFIG_TV_DSHOW)
 418     if (0
 419 #ifdef CONFIG_TV_V4L2
 420     || (!strcmp(tvh->tv_param->driver, "v4l2") && tvh->tv_param->normid >= 0)
 421 #endif
 422 #ifdef CONFIG_TV_DSHOW
 423     || (!strcmp(tvh->tv_param->driver, "dshow") && tvh->tv_param->normid >= 0)
 424 #endif
 425     )
 426         tv_set_norm_i(tvh, tvh->tv_param->normid);
 427     else
 428 #endif
 429     tv_set_norm(tvh,tvh->tv_param->norm);
 430
 431 #ifdef CONFIG_TV_V4L1
 432     if ( tvh->tv_param->mjpeg )
 433     {
 434       /* set width to expected value */
 435       if (tvh->tv_param->width == -1)
 436         {
 437           tvh->tv_param->width = 704/tvh->tv_param->decimation;
 438         }
 439       if (tvh->tv_param->height == -1)
 440         {
 441           if ( tvh->norm != TV_NORM_NTSC )
 442             tvh->tv_param->height = 576/tvh->tv_param->decimation;
 443           else
 444             tvh->tv_param->height = 480/tvh->tv_param->decimation;
 445         }
 446       mp_tmsg(MSGT_TV, MSGL_INFO,
 447                " MJP: width %d height %d\n", tvh->tv_param->width, tvh->tv_param->height);
 448     }
 449 #endif
 450
 451     /* limits on w&h are norm-dependent -- JM */
 452     if (tvh->tv_param->width != -1 && tvh->tv_param->height != -1) {
 453         // first tell the driver both width and height, some drivers do not support setting them independently.
 454         int dim[2];
 455         dim[0] = tvh->tv_param->width; dim[1] = tvh->tv_param->height;
 456         funcs->control(tvh->priv, TVI_CONTROL_VID_SET_WIDTH_HEIGHT, dim);
 457     }
 458     /* set width */
 459     if (tvh->tv_param->width != -1)
 460     {
 461         if (funcs->control(tvh->priv, TVI_CONTROL_VID_CHK_WIDTH, &tvh->tv_param->width) == TVI_CONTROL_TRUE)
 462             funcs->control(tvh->priv, TVI_CONTROL_VID_SET_WIDTH, &tvh->tv_param->width);
 463         else
 464         {
 465             mp_tmsg(MSGT_TV, MSGL_ERR, "Unable to set requested width: %d\n", tvh->tv_param->width);
 466             funcs->control(tvh->priv, TVI_CONTROL_VID_GET_WIDTH, &tvh->tv_param->width);
 467         }
 468     }
 469
 470     /* set height */
 471     if (tvh->tv_param->height != -1)
 472     {
 473         if (funcs->control(tvh->priv, TVI_CONTROL_VID_CHK_HEIGHT, &tvh->tv_param->height) == TVI_CONTROL_TRUE)
 474             funcs->control(tvh->priv, TVI_CONTROL_VID_SET_HEIGHT, &tvh->tv_param->height);
 475         else
 476         {
 477             mp_tmsg(MSGT_TV, MSGL_ERR, "Unable to set requested height: %d\n", tvh->tv_param->height);
 478             funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HEIGHT, &tvh->tv_param->height);
 479         }
 480     }
 481
 482     if (funcs->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) != TVI_CONTROL_TRUE)
 483     {
 484         mp_tmsg(MSGT_TV, MSGL_WARN, "Selected input hasn't got a tuner!\n");
 485         goto done;
 486     }
 487
 488     /* select channel list */
 489     for (i = 0; chanlists[i].name != NULL; i++)
 490     {
 491         if (!strcasecmp(chanlists[i].name, tvh->tv_param->chanlist))
 492         {
 493             tvh->chanlist = i;
 494             tvh->chanlist_s = chanlists[i].list;
 495             break;
 496         }
 497     }
 498
 499     if (tvh->chanlist == -1)
 500         mp_tmsg(MSGT_TV, MSGL_WARN, "Unable to find selected channel list! (%s)\n",
 501             tvh->tv_param->chanlist);
 502     else
 503         mp_tmsg(MSGT_TV, MSGL_V, "Selected channel list: %s (including %d channels)\n",
 504             chanlists[tvh->chanlist].name, chanlists[tvh->chanlist].count);
 505
 506     if (tvh->tv_param->freq && tvh->tv_param->channel)
 507     {
 508         mp_tmsg(MSGT_TV, MSGL_WARN, "You can't set frequency and channel simultaneously!\n");
 509         goto done;
 510     }
 511
 512     /* Handle channel names */
 513     if (tvh->tv_param->channels) {
 514         parse_channels(tvh);
 515     } else
 516             tv_channel_last_real = malloc(5);
 517
 518     if (tv_channel_list) {
 519         int i;
 520         int channel = 0;
 521         if (tvh->tv_param->channel)
 522          {
 523            if (isdigit(*tvh->tv_param->channel))
 524                 /* if tvh->tv_param->channel begins with a digit interpret it as a number */
 525                 channel = atoi(tvh->tv_param->channel);
 526            else
 527               {
 528                 /* if tvh->tv_param->channel does not begin with a digit
 529                    set the first channel that contains tvh->tv_param->channel in its name */
 530
 531                 tv_channel_current = tv_channel_list;
 532                 while ( tv_channel_current ) {
 533                         if ( strstr(tv_channel_current->name, tvh->tv_param->channel) )
 534                           break;
 535                         tv_channel_current = tv_channel_current->next;
 536                         }
 537                 if ( !tv_channel_current ) tv_channel_current = tv_channel_list;
 538               }
 539          }
 540         else
 541                 channel = 1;
 542
 543         if ( channel ) {
 544         tv_channel_current = tv_channel_list;
 545         for (i = 1; i < channel; i++)
 546                 if (tv_channel_current->next)
 547                         tv_channel_current = tv_channel_current->next;
 548         }
 549
 550         mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n", tv_channel_current->number,
 551                         tv_channel_current->name, (float)tv_channel_current->freq/1000);
 552         tv_set_norm_i(tvh, tv_channel_current->norm);
 553         tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
 554         tv_channel_last = tv_channel_current;
 555     } else {
 556     /* we need to set frequency */
 557     if (tvh->tv_param->freq)
 558     {
 559         unsigned long freq = atof(tvh->tv_param->freq)*16;
 560
 561         /* set freq in MHz */
 562         funcs->control(tvh->priv, TVI_CONTROL_TUN_SET_FREQ, &freq);
 563
 564         funcs->control(tvh->priv, TVI_CONTROL_TUN_GET_FREQ, &freq);
 565         mp_tmsg(MSGT_TV, MSGL_V, "Selected frequency: %lu (%.3f)\n",
 566             freq, (float)freq/16);
 567     }
 568
 569             if (tvh->tv_param->channel) {
 570         struct CHANLIST cl;
 571
 572         mp_tmsg(MSGT_TV, MSGL_V, "Requested channel: %s\n", tvh->tv_param->channel);
 573         for (i = 0; i < chanlists[tvh->chanlist].count; i++)
 574         {
 575             cl = tvh->chanlist_s[i];
 576                     //  printf("count%d: name: %s, freq: %d\n",
 577                     //  i, cl.name, cl.freq);
 578             if (!strcasecmp(cl.name, tvh->tv_param->channel))
 579             {
 580                         strcpy(tv_channel_last_real, cl.name);
 581                 tvh->channel = i;
 582                 mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
 583                     cl.name, (float)cl.freq/1000);
 584                 tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
 585                 break;
 586             }
 587         }
 588     }
 589     }
 590
 591     /* grep frequency in chanlist */
 592     {
 593         unsigned long i2;
 594         int freq;
 595
 596         tv_get_freq(tvh, &i2);
 597
 598         freq = (int) (((float)(i2/16))*1000)+250;
 599
 600         for (i = 0; i < chanlists[tvh->chanlist].count; i++)
 601         {
 602             if (tvh->chanlist_s[i].freq == freq)
 603             {
 604                 tvh->channel = i+1;
 605                 break;
 606             }
 607         }
 608     }
 609
 610 done:
 611     /* also start device! */
 612         return 1;
 613 }
 614
 615 static tvi_handle_t *tv_begin(tv_param_t* tv_param)
 616 {
 617     int i;
 618     tvi_handle_t* h;
 619     if(tv_param->driver && !strcmp(tv_param->driver,"help")){
 620         mp_tmsg(MSGT_TV,MSGL_INFO,"Available drivers:\n");
 621         for(i=0;tvi_driver_list[i];i++){
 622             mp_msg(MSGT_TV,MSGL_INFO," %s\t%s",tvi_driver_list[i]->short_name,tvi_driver_list[i]->name);
 623             if(tvi_driver_list[i]->comment)
 624                 mp_msg(MSGT_TV,MSGL_INFO," (%s)",tvi_driver_list[i]->comment);
 625             mp_msg(MSGT_TV,MSGL_INFO,"\n");
 626         }
 627         return NULL;
 628     }
 629
 630     for(i=0;tvi_driver_list[i];i++){
 631         if (!tv_param->driver || !strcmp(tvi_driver_list[i]->short_name, tv_param->driver)){
 632             h=tvi_driver_list[i]->tvi_init(tv_param);
 633             //Requested driver initialization failed
 634             if (!h && tv_param->driver)
 635                 return NULL;
 636             //Driver initialization failed during autodetection process.
 637             if (!h)
 638                 continue;
 639
 640             h->tv_param=tv_param;
 641             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,
 642             tvi_driver_list[i]->name,
 643             tvi_driver_list[i]->author,
 644             tvi_driver_list[i]->comment?tvi_driver_list[i]->comment:"");
 645             tv_param->driver=strdup(tvi_driver_list[i]->short_name);
 646             return h;
 647         }
 648     }
 649
 650     if(tv_param->driver)
 651         mp_tmsg(MSGT_TV, MSGL_ERR, "No such driver: %s\n", tv_param->driver);
 652     else
 653         mp_tmsg(MSGT_TV, MSGL_ERR, "TV driver autodetection failed.\n");
 654     return NULL;
 655 }
 656
 657 static int tv_uninit(tvi_handle_t *tvh)
 658 {
 659     int res;
 660     if(!tvh) return 1;
 661     if (!tvh->priv) return 1;
 662     res=tvh->functions->uninit(tvh->priv);
 663     if(res) {
 664         free(tvh->priv);
 665         tvh->priv=NULL;
 666     }
 667     return res;
 668 }
 669
 670 static demuxer_t* demux_open_tv(demuxer_t *demuxer)
 671 {
 672     tvi_handle_t *tvh;
 673     sh_video_t *sh_video;
 674     sh_audio_t *sh_audio = NULL;
 675     const tvi_functions_t *funcs;
 676
 677     demuxer->priv=NULL;
 678     if(!(tvh=tv_begin(demuxer->stream->priv))) return NULL;
 679     if (!tvh->functions->init(tvh->priv)) return NULL;
 680
 681     tvh->demuxer = demuxer;
 682     tvh->functions->control(tvh->priv,TVI_CONTROL_VBI_INIT,
 683                             &(tvh->tv_param->teletext.device));
 684     tvh->functions->control(tvh->priv,TVI_CONTROL_GET_VBI_PTR,
 685                             &demuxer->teletext);
 686
 687     if (!open_tv(tvh)){
 688         tv_uninit(tvh);
 689         return NULL;
 690     }
 691     funcs = tvh->functions;
 692     demuxer->priv=tvh;
 693
 694     sh_video = new_sh_video(demuxer, 0);
 695
 696     /* get IMAGE FORMAT */
 697     funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FORMAT, &sh_video->format);
 698 //    if (IMGFMT_IS_RGB(sh_video->format) || IMGFMT_IS_BGR(sh_video->format))
 699 //      sh_video->format = 0x0;
 700
 701     /* set FPS and FRAMETIME */
 702
 703     if(!sh_video->fps)
 704     {
 705         float tmp;
 706         if (funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FPS, &tmp) != TVI_CONTROL_TRUE)
 707              sh_video->fps = 25.0f; /* on PAL */
 708         else sh_video->fps = tmp;
 709     }
 710
 711     if (tvh->tv_param->fps != -1.0f)
 712         sh_video->fps = tvh->tv_param->fps;
 713
 714     sh_video->frametime = 1.0f/sh_video->fps;
 715
 716     /* If playback only mode, go to immediate mode, fail silently */
 717     if(tvh->tv_param->immediate == 1)
 718         {
 719         funcs->control(tvh->priv, TVI_CONTROL_IMMEDIATE, 0);
 720         tvh->tv_param->noaudio = 1;
 721         }
 722
 723     /* disable TV audio if -nosound is present */
 724     if (!demuxer->audio || demuxer->audio->id == -2) {
 725         tvh->tv_param->noaudio = 1;
 726     }
 727
 728     /* set width */
 729     funcs->control(tvh->priv, TVI_CONTROL_VID_GET_WIDTH, &sh_video->disp_w);
 730
 731     /* set height */
 732     funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HEIGHT, &sh_video->disp_h);
 733
 734     demuxer->video->sh = sh_video;
 735     sh_video->ds = demuxer->video;
 736     demuxer->video->id = 0;
 737     demuxer->seekable = 0;
 738
 739     /* here comes audio init */
 740     if (tvh->tv_param->noaudio == 0 && funcs->control(tvh->priv, TVI_CONTROL_IS_AUDIO, 0) == TVI_CONTROL_TRUE)
 741     {
 742         int audio_format;
 743         int sh_audio_format;
 744         char buf[128];
 745
 746         /* yeah, audio is present */
 747
 748         funcs->control(tvh->priv, TVI_CONTROL_AUD_SET_SAMPLERATE,
 749                                   &tvh->tv_param->audiorate);
 750
 751         if (funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_FORMAT, &audio_format) != TVI_CONTROL_TRUE)
 752             goto no_audio;
 753
 754         switch(audio_format)
 755         {
 756             case AF_FORMAT_U8:
 757             case AF_FORMAT_S8:
 758             case AF_FORMAT_U16_LE:
 759             case AF_FORMAT_U16_BE:
 760             case AF_FORMAT_S16_LE:
 761             case AF_FORMAT_S16_BE:
 762             case AF_FORMAT_S32_LE:
 763             case AF_FORMAT_S32_BE:
 764                 sh_audio_format = 0x1; /* PCM */
 765                 break;
 766             case AF_FORMAT_IMA_ADPCM:
 767             case AF_FORMAT_MU_LAW:
 768             case AF_FORMAT_A_LAW:
 769             case AF_FORMAT_MPEG2:
 770             case AF_FORMAT_AC3:
 771             default:
 772                 mp_tmsg(MSGT_TV, MSGL_ERR, "Audio type '%s (%x)' unsupported!\n",
 773                     af_fmt2str(audio_format, buf, 128), audio_format);
 774                 goto no_audio;
 775         }
 776
 777         sh_audio = new_sh_audio(demuxer, 0);
 778
 779         funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_SAMPLERATE,
 780                    &sh_audio->samplerate);
 781         funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_SAMPLESIZE,
 782                    &sh_audio->samplesize);
 783         funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_CHANNELS,
 784                    &sh_audio->channels);
 785
 786         sh_audio->format = sh_audio_format;
 787         sh_audio->sample_format = audio_format;
 788
 789         sh_audio->i_bps = sh_audio->o_bps =
 790             sh_audio->samplerate * sh_audio->samplesize *
 791             sh_audio->channels;
 792
 793         // emulate WF for win32 codecs:
 794         sh_audio->wf = malloc(sizeof(WAVEFORMATEX));
 795         sh_audio->wf->wFormatTag = sh_audio->format;
 796         sh_audio->wf->nChannels = sh_audio->channels;
 797         sh_audio->wf->wBitsPerSample = sh_audio->samplesize * 8;
 798         sh_audio->wf->nSamplesPerSec = sh_audio->samplerate;
 799         sh_audio->wf->nBlockAlign = sh_audio->samplesize * sh_audio->channels;
 800         sh_audio->wf->nAvgBytesPerSec = sh_audio->i_bps;
 801
 802         mp_tmsg(MSGT_DECVIDEO, MSGL_V, " TV audio: %d channels, %d bits, %d Hz\n",
 803           sh_audio->wf->nChannels, sh_audio->wf->wBitsPerSample,
 804           sh_audio->wf->nSamplesPerSec);
 805
 806         demuxer->audio->sh = sh_audio;
 807         sh_audio->ds = demuxer->audio;
 808         demuxer->audio->id = 0;
 809     }
 810 no_audio:
 811
 812     if(!(funcs->start(tvh->priv))){
 813         // start failed :(
 814         tv_uninit(tvh);
 815         return NULL;
 816     }
 817
 818     /* set color eq */
 819     tv_set_color_options(tvh, TV_COLOR_BRIGHTNESS, tvh->tv_param->brightness);
 820     tv_set_color_options(tvh, TV_COLOR_HUE, tvh->tv_param->hue);
 821     tv_set_color_options(tvh, TV_COLOR_SATURATION, tvh->tv_param->saturation);
 822     tv_set_color_options(tvh, TV_COLOR_CONTRAST, tvh->tv_param->contrast);
 823
 824     if(tvh->tv_param->gain!=-1)
 825         if(funcs->control(tvh->priv,TVI_CONTROL_VID_SET_GAIN,&tvh->tv_param->gain)!=TVI_CONTROL_TRUE)
 826             mp_msg(MSGT_TV,MSGL_WARN,"Unable to set gain control!\n");
 827
 828     teletext_control(demuxer->teletext,TV_VBI_CONTROL_RESET,
 829                      &tvh->tv_param->teletext);
 830
 831     return demuxer;
 832 }
 833
 834 static void demux_close_tv(demuxer_t *demuxer)
 835 {
 836     tvi_handle_t *tvh=(tvi_handle_t*)(demuxer->priv);
 837     if (!tvh) return;
 838     tv_uninit(tvh);
 839     free(tvh);
 840     demuxer->priv=NULL;
 841     demuxer->teletext=NULL;
 842 }
 843
 844 /* utilities for mplayer (not mencoder!!) */
 845 int tv_set_color_options(tvi_handle_t *tvh, int opt, int value)
 846 {
 847     const tvi_functions_t *funcs = tvh->functions;
 848
 849     switch(opt)
 850     {
 851         case TV_COLOR_BRIGHTNESS:
 852             return funcs->control(tvh->priv, TVI_CONTROL_VID_SET_BRIGHTNESS, &value);
 853         case TV_COLOR_HUE:
 854             return funcs->control(tvh->priv, TVI_CONTROL_VID_SET_HUE, &value);
 855         case TV_COLOR_SATURATION:
 856             return funcs->control(tvh->priv, TVI_CONTROL_VID_SET_SATURATION, &value);
 857         case TV_COLOR_CONTRAST:
 858             return funcs->control(tvh->priv, TVI_CONTROL_VID_SET_CONTRAST, &value);
 859         default:
 860             mp_tmsg(MSGT_TV, MSGL_WARN, "Unknown color option (%d) specified!\n", opt);
 861     }
 862
 863     return TVI_CONTROL_UNKNOWN;
 864 }
 865
 866 int tv_get_color_options(tvi_handle_t *tvh, int opt, int* value)
 867 {
 868     const tvi_functions_t *funcs = tvh->functions;
 869
 870     switch(opt)
 871     {
 872         case TV_COLOR_BRIGHTNESS:
 873             return funcs->control(tvh->priv, TVI_CONTROL_VID_GET_BRIGHTNESS, value);
 874         case TV_COLOR_HUE:
 875             return funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HUE, value);
 876         case TV_COLOR_SATURATION:
 877             return funcs->control(tvh->priv, TVI_CONTROL_VID_GET_SATURATION, value);
 878         case TV_COLOR_CONTRAST:
 879             return funcs->control(tvh->priv, TVI_CONTROL_VID_GET_CONTRAST, value);
 880         default:
 881             mp_tmsg(MSGT_TV, MSGL_WARN, "Unknown color option (%d) specified!\n", opt);
 882     }
 883
 884     return TVI_CONTROL_UNKNOWN;
 885 }
 886
 887 int tv_get_freq(tvi_handle_t *tvh, unsigned long *freq)
 888 {
 889     if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) == TVI_CONTROL_TRUE)
 890     {
 891         tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_GET_FREQ, freq);
 892         mp_tmsg(MSGT_TV, MSGL_V, "Current frequency: %lu (%.3f)\n",
 893             *freq, (float)*freq/16);
 894     }
 895     return 1;
 896 }
 897
 898 int tv_set_freq(tvi_handle_t *tvh, unsigned long freq)
 899 {
 900     if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) == TVI_CONTROL_TRUE)
 901     {
 902 //      unsigned long freq = atof(tvh->tv_param->freq)*16;
 903
 904         /* set freq in MHz */
 905         tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_FREQ, &freq);
 906
 907         tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_GET_FREQ, &freq);
 908         mp_tmsg(MSGT_TV, MSGL_V, "Current frequency: %lu (%.3f)\n",
 909             freq, (float)freq/16);
 910     }
 911     teletext_control(tvh->demuxer->teletext,TV_VBI_CONTROL_RESET,
 912                      &tvh->tv_param->teletext);
 913     return 1;
 914 }
 915
 916 int tv_get_signal(tvi_handle_t *tvh)
 917 {
 918     int signal=0;
 919     if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) != TVI_CONTROL_TRUE ||
 920         tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_GET_SIGNAL, &signal)!=TVI_CONTROL_TRUE)
 921         return 0;
 922
 923     return signal;
 924 }
 925
 926 /*****************************************************************
 927  * \brief tune current frequency by step_interval value
 928  * \parameter step_interval increment value in 1/16 MHz
 929  * \note frequency is rounded to 1/16 MHz value
 930  * \return 1
 931  *
 932  */
 933 int tv_step_freq(tvi_handle_t* tvh, float step_interval){
 934     unsigned long frequency;
 935
 936     tvh->tv_param->scan=0;
 937     tv_get_freq(tvh,&frequency);
 938     frequency+=step_interval;
 939     return tv_set_freq(tvh,frequency);
 940 }
 941
 942 int tv_step_channel_real(tvi_handle_t *tvh, int direction)
 943 {
 944     struct CHANLIST cl;
 945
 946     tvh->tv_param->scan=0;
 947     if (direction == TV_CHANNEL_LOWER)
 948     {
 949         if (tvh->channel-1 >= 0)
 950         {
 951             strcpy(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
 952             cl = tvh->chanlist_s[--tvh->channel];
 953             mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
 954                 cl.name, (float)cl.freq/1000);
 955             tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
 956         }
 957     }
 958
 959     if (direction == TV_CHANNEL_HIGHER)
 960     {
 961         if (tvh->channel+1 < chanlists[tvh->chanlist].count)
 962         {
 963             strcpy(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
 964             cl = tvh->chanlist_s[++tvh->channel];
 965             mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
 966                 cl.name, (float)cl.freq/1000);
 967             tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
 968         }
 969     }
 970     return 1;
 971 }
 972
 973 int tv_step_channel(tvi_handle_t *tvh, int direction) {
 974         tvh->tv_param->scan=0;
 975         if (tv_channel_list) {
 976                 if (direction == TV_CHANNEL_HIGHER) {
 977                         tv_channel_last = tv_channel_current;
 978                         if (tv_channel_current->next)
 979                                 tv_channel_current = tv_channel_current->next;
 980                         else
 981                                 tv_channel_current = tv_channel_list;
 982
 983                                 tv_set_norm_i(tvh, tv_channel_current->norm);
 984                                 tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
 985                                 mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n",
 986                         tv_channel_current->number, tv_channel_current->name, (float)tv_channel_current->freq/1000);
 987                 }
 988                 if (direction == TV_CHANNEL_LOWER) {
 989                         tv_channel_last = tv_channel_current;
 990                         if (tv_channel_current->prev)
 991                                 tv_channel_current = tv_channel_current->prev;
 992                         else
 993                                 while (tv_channel_current->next)
 994                                         tv_channel_current = tv_channel_current->next;
 995                                 tv_set_norm_i(tvh, tv_channel_current->norm);
 996                                 tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
 997                                 mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n",
 998                         tv_channel_current->number, tv_channel_current->name, (float)tv_channel_current->freq/1000);
 999                 }
1000         } else tv_step_channel_real(tvh, direction);
1001         return 1;
1002 }
1003
1004 int tv_set_channel_real(tvi_handle_t *tvh, char *channel) {
1005         int i;
1006         struct CHANLIST cl;
1007
1008         tvh->tv_param->scan=0;
1009         strcpy(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
1010         for (i = 0; i < chanlists[tvh->chanlist].count; i++)
1011         {
1012             cl = tvh->chanlist_s[i];
1013 //          printf("count%d: name: %s, freq: %d\n",
1014 //              i, cl.name, cl.freq);
1015             if (!strcasecmp(cl.name, channel))
1016             {
1017                 tvh->channel = i;
1018                 mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
1019                     cl.name, (float)cl.freq/1000);
1020                 tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
1021                 break;
1022             }
1023         }
1024         return 1;
1025 }
1026
1027 int tv_set_channel(tvi_handle_t *tvh, char *channel) {
1028         int i, channel_int;
1029
1030         tvh->tv_param->scan=0;
1031         if (tv_channel_list) {
1032                 tv_channel_last = tv_channel_current;
1033                 channel_int = atoi(channel);
1034                 tv_channel_current = tv_channel_list;
1035                 for (i = 1; i < channel_int; i++)
1036                         if (tv_channel_current->next)
1037                                 tv_channel_current = tv_channel_current->next;
1038                 mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n", tv_channel_current->number,
1039                                 tv_channel_current->name, (float)tv_channel_current->freq/1000);
1040                 tv_set_norm_i(tvh, tv_channel_current->norm);
1041                 tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
1042         } else tv_set_channel_real(tvh, channel);
1043         return 1;
1044 }
1045
1046 int tv_last_channel(tvi_handle_t *tvh) {
1047
1048         tvh->tv_param->scan=0;
1049         if (tv_channel_list) {
1050                 tv_channels_t *tmp;
1051
1052                 tmp = tv_channel_last;
1053                 tv_channel_last = tv_channel_current;
1054                 tv_channel_current = tmp;
1055
1056                 mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n", tv_channel_current->number,
1057                                 tv_channel_current->name, (float)tv_channel_current->freq/1000);
1058                 tv_set_norm_i(tvh, tv_channel_current->norm);
1059                 tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
1060         } else {
1061                 int i;
1062                 struct CHANLIST cl;
1063
1064                 for (i = 0; i < chanlists[tvh->chanlist].count; i++)
1065                 {
1066                     cl = tvh->chanlist_s[i];
1067                     if (!strcasecmp(cl.name, tv_channel_last_real))
1068                     {
1069                         strcpy(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
1070                         tvh->channel = i;
1071                         mp_tmsg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
1072                             cl.name, (float)cl.freq/1000);
1073                         tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
1074                         break;
1075                     }
1076                 }
1077         }
1078         return 1;
1079 }
1080
1081 int tv_step_norm(tvi_handle_t *tvh)
1082 {
1083   tvh->norm++;
1084   if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM,
1085                               &tvh->norm) != TVI_CONTROL_TRUE) {
1086     tvh->norm = 0;
1087     if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM,
1088                                 &tvh->norm) != TVI_CONTROL_TRUE) {
1089       mp_tmsg(MSGT_TV, MSGL_ERR, "Error: Cannot set norm!\n");
1090       return 0;
1091     }
1092   }
1093     teletext_control(tvh->demuxer->teletext,TV_VBI_CONTROL_RESET,
1094                      &tvh->tv_param->teletext);
1095     return 1;
1096 }
1097
1098 int tv_step_chanlist(tvi_handle_t *tvh)
1099 {
1100     return 1;
1101 }
1102
1103 demuxer_desc_t demuxer_desc_tv = {
1104   "Tv card demuxer",
1105   "tv",
1106   "TV",
1107   "Alex Beregszaszi, Charles R. Henrich",
1108   "?",
1109   DEMUXER_TYPE_TV,
1110   0, // no autodetect
1111   NULL,
1112   demux_tv_fill_buffer,
1113   demux_open_tv,
1114   demux_close_tv,
1115   NULL,
1116   NULL
1117 };