stream/stream_dvdnav.c

   1 #include "config.h"
   2
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5 #include <unistd.h>
   6 #include <string.h>
   7 #include <errno.h>
   8 #include "mp_msg.h"
   9 #include "osdep/timer.h"
  10 #include "input/input.h"
  11 #include "stream.h"
  12 #include "libmpdemux/demuxer.h"
  13 #include <dvdnav/dvdnav.h>
  14 #include "stream_dvdnav.h"
  15 #include "libvo/video_out.h"
  16 #include "libavutil/common.h"
  17 #include "spudec.h"
  18 #include "m_option.h"
  19 #include "m_struct.h"
  20 #include "help_mp.h"
  21 #include "stream_dvd_common.h"
  22
  23 /* state flags */
  24 typedef enum {
  25   NAV_FLAG_EOF                  = 1 << 0,  /* end of stream has been reached */
  26   NAV_FLAG_WAIT                 = 1 << 1,  /* wait event */
  27   NAV_FLAG_WAIT_SKIP            = 1 << 2,  /* wait skip disable */
  28   NAV_FLAG_CELL_CHANGE          = 1 << 3,  /* cell change event */
  29   NAV_FLAG_WAIT_READ_AUTO       = 1 << 4,  /* wait read auto mode */
  30   NAV_FLAG_WAIT_READ            = 1 << 5,  /* suspend read from stream */
  31   NAV_FLAG_VTS_DOMAIN           = 1 << 6,  /* vts domain */
  32   NAV_FLAG_SPU_SET              = 1 << 7,  /* spu_clut is valid */
  33   NAV_FLAG_STREAM_CHANGE        = 1 << 8,  /* title, chapter, audio or SPU */
  34   NAV_FLAG_AUDIO_CHANGE         = 1 << 9,  /* audio stream change event */
  35   NAV_FLAG_SPU_CHANGE           = 1 << 10, /* spu stream change event */
  36 } dvdnav_state_t;
  37
  38 typedef struct {
  39   dvdnav_t *       dvdnav;              /* handle to libdvdnav stuff */
  40   char *           filename;            /* path */
  41   unsigned int     duration;            /* in milliseconds */
  42   int              mousex, mousey;
  43   int              title;
  44   unsigned int     spu_clut[16];
  45   dvdnav_highlight_event_t hlev;
  46   int              still_length;        /* still frame duration */
  47   unsigned int     state;
  48 } dvdnav_priv_t;
  49
  50 extern char *dvd_device;
  51 extern char *audio_lang, *dvdsub_lang;
  52 extern char *dvd_audio_stream_channels[6], *dvd_audio_stream_types[8];
  53
  54 static struct stream_priv_s {
  55   int track;
  56   char* device;
  57 } stream_priv_dflts = {
  58   0,
  59   NULL
  60 };
  61
  62 #define ST_OFF(f) M_ST_OFF(struct stream_priv_s,f)
  63 /// URL definition
  64 static const m_option_t stream_opts_fields[] = {
  65   {"filename",  ST_OFF(device), CONF_TYPE_STRING, 0, 0, 0, NULL },
  66   {"hostname",  ST_OFF(track),  CONF_TYPE_INT, M_OPT_RANGE, 1, 99, NULL},
  67   { NULL, NULL, 0, 0, 0, 0,  NULL }
  68 };
  69 static const struct m_struct_st stream_opts = {
  70   "dvd",
  71   sizeof(struct stream_priv_s),
  72   &stream_priv_dflts,
  73   stream_opts_fields
  74 };
  75
  76 static int seek(stream_t *s, off_t newpos);
  77 static void show_audio_subs_languages(dvdnav_t *nav);
  78
  79 static dvdnav_priv_t * new_dvdnav_stream(char * filename) {
  80   const char * title_str;
  81   dvdnav_priv_t *priv;
  82
  83   if (!filename)
  84     return NULL;
  85
  86   if (!(priv=calloc(1,sizeof(dvdnav_priv_t))))
  87     return NULL;
  88
  89   if (!(priv->filename=strdup(filename))) {
  90     free(priv);
  91     return NULL;
  92   }
  93
  94   if(dvdnav_open(&(priv->dvdnav),priv->filename)!=DVDNAV_STATUS_OK)
  95   {
  96     free(priv->filename);
  97     free(priv);
  98     return NULL;
  99   }
 100
 101   if (!priv->dvdnav) {
 102     free(priv);
 103     return NULL;
 104   }
 105
 106   if(1) //from vlc: if not used dvdnav from cvs will fail
 107   {
 108     int len, event;
 109     char buf[2048];
 110
 111     dvdnav_get_next_block(priv->dvdnav,buf,&event,&len);
 112     dvdnav_sector_search(priv->dvdnav, 0, SEEK_SET);
 113   }
 114
 115   /* turn off dvdnav caching */
 116   dvdnav_set_readahead_flag(priv->dvdnav, 0);
 117   if(dvdnav_set_PGC_positioning_flag(priv->dvdnav, 1) != DVDNAV_STATUS_OK)
 118     mp_msg(MSGT_OPEN,MSGL_ERR,"stream_dvdnav, failed to set PGC positioning\n");
 119 #if 1
 120   /* report the title?! */
 121   if (dvdnav_get_title_string(priv->dvdnav,&title_str)==DVDNAV_STATUS_OK) {
 122     mp_msg(MSGT_IDENTIFY, MSGL_INFO,"Title: '%s'\n",title_str);
 123   }
 124 #endif
 125
 126   //dvdnav_event_clear(priv);
 127
 128   return priv;
 129 }
 130
 131 static void dvdnav_get_highlight (dvdnav_priv_t *priv, int display_mode) {
 132   pci_t *pnavpci = NULL;
 133   dvdnav_highlight_event_t *hlev = &(priv->hlev);
 134   int btnum;
 135
 136   if (!priv || !priv->dvdnav)
 137     return;
 138
 139   pnavpci = dvdnav_get_current_nav_pci (priv->dvdnav);
 140   if (!pnavpci)
 141     return;
 142
 143   dvdnav_get_current_highlight (priv->dvdnav, &(hlev->buttonN));
 144   hlev->display = display_mode; /* show */
 145
 146   if (hlev->buttonN > 0 && pnavpci->hli.hl_gi.btn_ns > 0 && hlev->display) {
 147     for (btnum = 0; btnum < pnavpci->hli.hl_gi.btn_ns; btnum++) {
 148       btni_t *btni = &(pnavpci->hli.btnit[btnum]);
 149
 150       if (hlev->buttonN == btnum + 1) {
 151         hlev->sx = FFMIN (btni->x_start, btni->x_end);
 152         hlev->ex = FFMAX (btni->x_start, btni->x_end);
 153         hlev->sy = FFMIN (btni->y_start, btni->y_end);
 154         hlev->ey = FFMAX (btni->y_start, btni->y_end);
 155
 156         hlev->palette = (btni->btn_coln == 0) ? 0 :
 157           pnavpci->hli.btn_colit.btn_coli[btni->btn_coln - 1][0];
 158         break;
 159       }
 160     }
 161   } else { /* hide button or no button */
 162     hlev->sx = hlev->ex = 0;
 163     hlev->sy = hlev->ey = 0;
 164     hlev->palette = hlev->buttonN = 0;
 165   }
 166 }
 167
 168 static inline int dvdnav_get_duration (int length) {
 169   return (length == 255) ? 0 : length * 1000;
 170 }
 171
 172 static int dvdnav_stream_read(dvdnav_priv_t * priv, unsigned char *buf, int *len) {
 173   int event = DVDNAV_NOP;
 174
 175   *len=-1;
 176   if (dvdnav_get_next_block(priv->dvdnav,buf,&event,len)!=DVDNAV_STATUS_OK) {
 177     mp_msg(MSGT_OPEN,MSGL_V, "Error getting next block from DVD %d (%s)\n",event, dvdnav_err_to_string(priv->dvdnav) );
 178     *len=-1;
 179   }
 180   else if (event!=DVDNAV_BLOCK_OK) {
 181     // need to handle certain events internally (like skipping stills)
 182     switch (event) {
 183       case DVDNAV_NAV_PACKET:
 184         return event;
 185       case DVDNAV_STILL_FRAME: {
 186         dvdnav_still_event_t *still_event = (dvdnav_still_event_t *) buf;
 187         priv->still_length = still_event->length;
 188         /* set still frame duration */
 189         priv->duration = dvdnav_get_duration (priv->still_length);
 190         if (priv->still_length <= 1) {
 191           pci_t *pnavpci = dvdnav_get_current_nav_pci (priv->dvdnav);
 192           priv->duration = mp_dvdtimetomsec (&pnavpci->pci_gi.e_eltm);
 193         }
 194         break;
 195       }
 196       case DVDNAV_HIGHLIGHT: {
 197         dvdnav_get_highlight (priv, 1);
 198         break;
 199       }
 200       case DVDNAV_CELL_CHANGE: {
 201         dvdnav_cell_change_event_t *ev =  (dvdnav_cell_change_event_t*)buf;
 202         uint32_t nextstill;
 203
 204         priv->state &= ~NAV_FLAG_WAIT_SKIP;
 205         priv->state |= NAV_FLAG_STREAM_CHANGE;
 206         if(ev->pgc_length)
 207           priv->duration = ev->pgc_length/90;
 208
 209         if (dvdnav_is_domain_vts(priv->dvdnav)) {
 210           mp_msg(MSGT_IDENTIFY, MSGL_INFO, "DVDNAV_TITLE_IS_MOVIE\n");
 211           priv->state &= ~NAV_FLAG_VTS_DOMAIN;
 212         } else {
 213           mp_msg(MSGT_IDENTIFY, MSGL_INFO, "DVDNAV_TITLE_IS_MENU\n");
 214           priv->state |= NAV_FLAG_VTS_DOMAIN;
 215         }
 216
 217         nextstill = dvdnav_get_next_still_flag (priv->dvdnav);
 218         if (nextstill) {
 219           priv->duration = dvdnav_get_duration (nextstill);
 220           priv->still_length = nextstill;
 221           if (priv->still_length <= 1) {
 222             pci_t *pnavpci = dvdnav_get_current_nav_pci (priv->dvdnav);
 223             priv->duration = mp_dvdtimetomsec (&pnavpci->pci_gi.e_eltm);
 224           }
 225         }
 226
 227         break;
 228       }
 229       case DVDNAV_SPU_CLUT_CHANGE: {
 230         memcpy(priv->spu_clut, buf, 16*sizeof(unsigned int));
 231         priv->state |= NAV_FLAG_SPU_SET;
 232         break;
 233       }
 234       case DVDNAV_WAIT: {
 235         if ((priv->state & NAV_FLAG_WAIT_SKIP) &&
 236             !(priv->state & NAV_FLAG_WAIT))
 237           dvdnav_wait_skip (priv->dvdnav);
 238         else
 239           priv->state |= NAV_FLAG_WAIT;
 240         break;
 241       }
 242       case DVDNAV_VTS_CHANGE: {
 243         priv->state &= ~NAV_FLAG_WAIT_SKIP;
 244         priv->state |= NAV_FLAG_STREAM_CHANGE;
 245         break;
 246       }
 247       case DVDNAV_SPU_STREAM_CHANGE: {
 248         priv->state |= NAV_FLAG_STREAM_CHANGE;
 249         break;
 250       }
 251     }
 252
 253     *len=0;
 254   }
 255   return event;
 256 }
 257
 258 static void update_title_len(stream_t *stream) {
 259   dvdnav_priv_t *priv = stream->priv;
 260   dvdnav_status_t status;
 261   uint32_t pos = 0, len = 0;
 262
 263   status = dvdnav_get_position(priv->dvdnav, &pos, &len);
 264   if(status == DVDNAV_STATUS_OK && len) {
 265     stream->end_pos = (off_t) len * 2048;
 266     stream->seek = seek;
 267   } else {
 268     stream->seek = NULL;
 269     stream->end_pos = 0;
 270   }
 271 }
 272
 273
 274 static int seek(stream_t *s, off_t newpos) {
 275   uint32_t sector = 0;
 276   dvdnav_priv_t *priv = s->priv;
 277
 278   if(s->end_pos && newpos > s->end_pos)
 279      newpos = s->end_pos;
 280   sector = newpos / 2048ULL;
 281   if(dvdnav_sector_search(priv->dvdnav, (uint64_t) sector, SEEK_SET) != DVDNAV_STATUS_OK)
 282     goto fail;
 283
 284   s->pos = newpos;
 285
 286   return 1;
 287
 288 fail:
 289   mp_msg(MSGT_STREAM,MSGL_INFO,"dvdnav_stream, seeking to %"PRIu64" failed: %s\n", newpos, dvdnav_err_to_string(priv->dvdnav));
 290
 291   return 1;
 292 }
 293
 294 static void stream_dvdnav_close(stream_t *s) {
 295   dvdnav_priv_t *priv = s->priv;
 296   dvdnav_close(priv->dvdnav);
 297   priv->dvdnav = NULL;
 298   free(priv);
 299 }
 300
 301
 302 static int fill_buffer(stream_t *s, char *but, int len)
 303 {
 304     int event;
 305
 306     dvdnav_priv_t* priv=s->priv;
 307     if (priv->state & NAV_FLAG_WAIT_READ) /* read is suspended */
 308       return -1;
 309     len=0;
 310     if(!s->end_pos)
 311       update_title_len(s);
 312     while(!len) /* grab all event until DVDNAV_BLOCK_OK (len=2048), DVDNAV_STOP or DVDNAV_STILL_FRAME */
 313     {
 314       event=dvdnav_stream_read(priv, s->buffer, &len);
 315       if(event==-1 || len==-1)
 316       {
 317         mp_msg(MSGT_CPLAYER,MSGL_ERR, "DVDNAV stream read error!\n");
 318         return 0;
 319       }
 320       if (event != DVDNAV_BLOCK_OK)
 321         dvdnav_get_highlight (priv, 1);
 322       switch (event) {
 323         case DVDNAV_STOP: {
 324           priv->state |= NAV_FLAG_EOF;
 325           return len;
 326         }
 327         case DVDNAV_BLOCK_OK:
 328         case DVDNAV_NAV_PACKET:
 329         case DVDNAV_STILL_FRAME:
 330           return len;
 331         case DVDNAV_WAIT: {
 332           if (priv->state & NAV_FLAG_WAIT)
 333             return len;
 334           break;
 335         }
 336         case DVDNAV_VTS_CHANGE: {
 337           int tit = 0, part = 0;
 338           dvdnav_vts_change_event_t *vts_event = (dvdnav_vts_change_event_t *)s->buffer;
 339           mp_msg(MSGT_CPLAYER,MSGL_INFO, "DVDNAV, switched to title: %d\r\n", vts_event->new_vtsN);
 340           priv->state |= NAV_FLAG_CELL_CHANGE;
 341           priv->state |= NAV_FLAG_AUDIO_CHANGE;
 342           priv->state |= NAV_FLAG_SPU_CHANGE;
 343           priv->state &= ~NAV_FLAG_WAIT_SKIP;
 344           priv->state &= ~NAV_FLAG_WAIT;
 345           s->end_pos = 0;
 346           update_title_len(s);
 347           show_audio_subs_languages(priv->dvdnav);
 348           if (priv->state & NAV_FLAG_WAIT_READ_AUTO)
 349             priv->state |= NAV_FLAG_WAIT_READ;
 350           if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) == DVDNAV_STATUS_OK) {
 351             mp_msg(MSGT_CPLAYER,MSGL_V, "\r\nDVDNAV, NEW TITLE %d\r\n", tit);
 352             dvdnav_get_highlight (priv, 0);
 353             if(priv->title > 0 && tit != priv->title)
 354               return 0;
 355           }
 356           break;
 357         }
 358         case DVDNAV_CELL_CHANGE: {
 359           priv->state |= NAV_FLAG_CELL_CHANGE;
 360           priv->state |= NAV_FLAG_AUDIO_CHANGE;
 361           priv->state |= NAV_FLAG_SPU_CHANGE;
 362           priv->state &= ~NAV_FLAG_WAIT_SKIP;
 363           priv->state &= ~NAV_FLAG_WAIT;
 364           if (priv->state & NAV_FLAG_WAIT_READ_AUTO)
 365             priv->state |= NAV_FLAG_WAIT_READ;
 366           if(priv->title > 0 && dvd_last_chapter > 0) {
 367             int tit=0, part=0;
 368             if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) == DVDNAV_STATUS_OK && part > dvd_last_chapter)
 369               return 0;
 370           }
 371           dvdnav_get_highlight (priv, 1);
 372         }
 373         break;
 374         case DVDNAV_AUDIO_STREAM_CHANGE:
 375           priv->state |= NAV_FLAG_AUDIO_CHANGE;
 376         break;
 377         case DVDNAV_SPU_STREAM_CHANGE:
 378           priv->state |= NAV_FLAG_SPU_CHANGE;
 379         break;
 380       }
 381   }
 382   mp_msg(MSGT_STREAM,MSGL_DBG2,"DVDNAV fill_buffer len: %d\n",len);
 383   return len;
 384 }
 385
 386 static int control(stream_t *stream, int cmd, void* arg) {
 387   dvdnav_priv_t* priv=stream->priv;
 388   int tit, part;
 389
 390   switch(cmd)
 391   {
 392     case STREAM_CTRL_SEEK_TO_CHAPTER:
 393     {
 394       int chap = *((unsigned int *)arg)+1;
 395
 396       if(chap < 1 || dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
 397         break;
 398       if(dvdnav_part_play(priv->dvdnav, tit, chap) != DVDNAV_STATUS_OK)
 399         break;
 400       return 1;
 401     }
 402     case STREAM_CTRL_GET_NUM_CHAPTERS:
 403     {
 404       if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
 405         break;
 406       if(dvdnav_get_number_of_parts(priv->dvdnav, tit, &part) != DVDNAV_STATUS_OK)
 407         break;
 408       if(!part)
 409         break;
 410       *((unsigned int *)arg) = part;
 411       return 1;
 412     }
 413     case STREAM_CTRL_GET_CURRENT_CHAPTER:
 414     {
 415       if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
 416         break;
 417       *((unsigned int *)arg) = part - 1;
 418       return 1;
 419     }
 420     case STREAM_CTRL_GET_TIME_LENGTH:
 421     {
 422       if(priv->duration || priv->still_length)
 423       {
 424         *((double *)arg) = (double)priv->duration / 1000.0;
 425         return 1;
 426       }
 427       break;
 428     }
 429     case STREAM_CTRL_GET_ASPECT_RATIO:
 430     {
 431       uint8_t ar = dvdnav_get_video_aspect(priv->dvdnav);
 432       *((double *)arg) = !ar ? 4.0/3.0 : 16.0/9.0;
 433       return 1;
 434     }
 435     case STREAM_CTRL_GET_CURRENT_TIME:
 436     {
 437       double tm;
 438       tm = dvdnav_get_current_time(priv->dvdnav)/90000.0f;
 439       if(tm != -1)
 440       {
 441         *((double *)arg) = tm;
 442         return 1;
 443       }
 444       break;
 445     }
 446     case STREAM_CTRL_SEEK_TO_TIME:
 447     {
 448       uint64_t tm = (uint64_t) (*((double*)arg) * 90000);
 449       if(dvdnav_time_search(priv->dvdnav, tm) == DVDNAV_STATUS_OK)
 450         return 1;
 451       break;
 452     }
 453     case STREAM_CTRL_GET_NUM_ANGLES:
 454     {
 455         uint32_t curr, angles;
 456         if(dvdnav_get_angle_info(priv->dvdnav, &curr, &angles) != DVDNAV_STATUS_OK)
 457           break;
 458         *((int *)arg) = angles;
 459         return 1;
 460     }
 461     case STREAM_CTRL_GET_ANGLE:
 462     {
 463         uint32_t curr, angles;
 464         if(dvdnav_get_angle_info(priv->dvdnav, &curr, &angles) != DVDNAV_STATUS_OK)
 465           break;
 466         *((int *)arg) = curr;
 467         return 1;
 468     }
 469     case STREAM_CTRL_SET_ANGLE:
 470     {
 471         uint32_t curr, angles;
 472         int new_angle = *((int *)arg);
 473         if(dvdnav_get_angle_info(priv->dvdnav, &curr, &angles) != DVDNAV_STATUS_OK)
 474           break;
 475         if(new_angle>angles || new_angle<1)
 476             break;
 477         if(dvdnav_angle_change(priv->dvdnav, new_angle) != DVDNAV_STATUS_OK)
 478         return 1;
 479     }
 480   }
 481
 482   return STREAM_UNSUPPORTED;
 483 }
 484
 485 static void identify_chapters(dvdnav_t *nav, uint32_t title)
 486 {
 487   uint64_t *parts=NULL, duration=0;
 488   uint32_t n, i, t;
 489   n = dvdnav_describe_title_chapters(nav, title, &parts, &duration);
 490   if(parts) {
 491     t = duration / 90;
 492     mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_DVD_TITLE_%d_LENGTH=%d.%03d\n", title, t / 1000, t % 1000);
 493     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "TITLE %u, CHAPTERS: ", title);
 494     for(i=0; i<n; i++) {
 495       t = parts[i] /  90000;
 496       mp_msg(MSGT_IDENTIFY, MSGL_INFO, "%02d:%02d:%02d,", t/3600, (t/60)%60, t%60);
 497     }
 498     free(parts);
 499     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "\n");
 500   }
 501 }
 502
 503 static void identify(dvdnav_priv_t *priv, struct stream_priv_s *p)
 504 {
 505   uint32_t titles=0, i;
 506   if(p->track <= 0) {
 507     dvdnav_get_number_of_titles(priv->dvdnav, &titles);
 508     for(i=0; i<titles; i++)
 509       identify_chapters(priv->dvdnav, i);
 510   }
 511   else
 512     identify_chapters(priv->dvdnav, p->track);
 513 }
 514
 515 static void show_audio_subs_languages(dvdnav_t *nav)
 516 {
 517   uint8_t lg;
 518   uint16_t i, lang, format, id, channels;
 519   int base[7] = {128, 0, 0, 0, 160, 136, 0};
 520   char tmp[3];
 521   for(i=0; i<8; i++)
 522   {
 523     lg = dvdnav_get_audio_logical_stream(nav, i);
 524     if(lg == 0xff) continue;
 525     channels = dvdnav_audio_stream_channels(nav, lg);
 526     if(channels == 0xFFFF)
 527       channels = 2; //unknown
 528     else
 529       channels--;
 530     lang = dvdnav_audio_stream_to_lang(nav, lg);
 531     if(lang == 0xFFFF)
 532       tmp[0] = tmp[1] = '?';
 533     else
 534     {
 535       tmp[0] = lang >> 8;
 536       tmp[1] = lang & 0xFF;
 537     }
 538     tmp[2] = 0;
 539     format = dvdnav_audio_stream_format(nav, lg);
 540     if(format == 0xFFFF || format > 6)
 541       format = 1; //unknown
 542     id = i + base[format];
 543     if (lang != 0xFFFF) {
 544       mp_msg(MSGT_OPEN,MSGL_STATUS,MSGTR_DVDaudioStreamInfo, i,
 545              dvd_audio_stream_types[format], dvd_audio_stream_channels[channels], tmp, id);
 546       if(lang && tmp[0])
 547         mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AID_%d_LANG=%s\n", id, tmp);
 548     }
 549   }
 550
 551   for(i=0; i<32; i++)
 552   {
 553     lg = dvdnav_get_spu_logical_stream(nav, i);
 554     if(lg == 0xff) continue;
 555     lang = dvdnav_spu_stream_to_lang(nav, lg);
 556     if(lang == 0xFFFF)
 557       tmp[0] = tmp[1] = '?';
 558     else
 559     {
 560       tmp[0] = lang >> 8;
 561       tmp[1] = lang & 0xFF;
 562     }
 563     tmp[2] = 0;
 564     if (lang != 0xFFFF)
 565       mp_msg(MSGT_OPEN,MSGL_STATUS,MSGTR_DVDsubtitleLanguage, i+0x20, tmp);
 566   }
 567 }
 568
 569 static int open_s(stream_t *stream,int mode, void* opts, int* file_format) {
 570   struct stream_priv_s* p = (struct stream_priv_s*)opts;
 571   char *filename;
 572   dvdnav_priv_t *priv;
 573
 574   if(p->device) filename = p->device;
 575   else if(dvd_device) filename= dvd_device;
 576   else filename = DEFAULT_DVD_DEVICE;
 577   if(!(priv=new_dvdnav_stream(filename))) {
 578     mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_CantOpenDVD,filename, strerror(errno));
 579     return STREAM_UNSUPPORTED;
 580   }
 581
 582   if(p->track > 0) {
 583     priv->title = p->track;
 584     if(dvdnav_title_play(priv->dvdnav, p->track) != DVDNAV_STATUS_OK) {
 585       mp_msg(MSGT_OPEN,MSGL_FATAL,"dvdnav_stream, couldn't select title %d, error '%s'\n", p->track, dvdnav_err_to_string(priv->dvdnav));
 586       return STREAM_UNSUPPORTED;
 587     }
 588   } else if (p->track == 0) {
 589     if(dvdnav_menu_call(priv->dvdnav, DVD_MENU_Root) != DVDNAV_STATUS_OK)
 590       dvdnav_menu_call(priv->dvdnav, DVD_MENU_Title);
 591   }
 592   if(mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
 593     identify(priv, p);
 594   if(p->track > 0)
 595     show_audio_subs_languages(priv->dvdnav);
 596   if(dvd_angle > 1)
 597     dvdnav_angle_change(priv->dvdnav, dvd_angle);
 598
 599   stream->sector_size = 2048;
 600   stream->flags = STREAM_READ | STREAM_SEEK;
 601   stream->fill_buffer = fill_buffer;
 602   stream->seek = seek;
 603   stream->control = control;
 604   stream->close = stream_dvdnav_close;
 605   stream->type = STREAMTYPE_DVDNAV;
 606   stream->priv=(void*)priv;
 607   *file_format = DEMUXER_TYPE_MPEG_PS;
 608
 609   update_title_len(stream);
 610   if(!stream->pos && p->track > 0)
 611     mp_msg(MSGT_OPEN,MSGL_ERR, "INIT ERROR: couldn't get init pos %s\r\n", dvdnav_err_to_string(priv->dvdnav));
 612
 613   mp_msg(MSGT_OPEN,MSGL_INFO, "Remember to disable MPlayer's cache when playing dvdnav:// streams (adding -nocache to your command line)\r\n");
 614
 615   return STREAM_OK;
 616 }
 617
 618
 619 void mp_dvdnav_handle_input(stream_t *stream, int cmd, int *button) {
 620   dvdnav_priv_t * priv = stream->priv;
 621   dvdnav_t *nav = priv->dvdnav;
 622   dvdnav_status_t status=DVDNAV_STATUS_ERR;
 623   pci_t *pci = dvdnav_get_current_nav_pci(nav);
 624
 625   if(cmd != MP_CMD_DVDNAV_SELECT && !pci)
 626     return;
 627
 628   switch(cmd) {
 629     case MP_CMD_DVDNAV_UP:
 630       status = dvdnav_upper_button_select(nav, pci);
 631       break;
 632     case MP_CMD_DVDNAV_DOWN:
 633       status = dvdnav_lower_button_select(nav, pci);
 634       break;
 635     case MP_CMD_DVDNAV_LEFT:
 636       status = dvdnav_left_button_select(nav, pci);
 637       break;
 638     case MP_CMD_DVDNAV_RIGHT:
 639       status = dvdnav_right_button_select(nav, pci);
 640       break;
 641     case MP_CMD_DVDNAV_MENU:
 642       status = dvdnav_menu_call(nav,DVD_MENU_Root);
 643       break;
 644     case MP_CMD_DVDNAV_PREVMENU: {
 645       int title=0, part=0;
 646
 647       dvdnav_current_title_info(nav, &title, &part);
 648       if(title) {
 649         if((status=dvdnav_menu_call(nav, DVD_MENU_Part)) == DVDNAV_STATUS_OK)
 650           break;
 651       }
 652       if((status=dvdnav_menu_call(nav, DVD_MENU_Title)) == DVDNAV_STATUS_OK)
 653         break;
 654       status=dvdnav_menu_call(nav, DVD_MENU_Root);
 655       }
 656       break;
 657     case MP_CMD_DVDNAV_SELECT:
 658       status = dvdnav_button_activate(nav, pci);
 659       break;
 660     case MP_CMD_DVDNAV_MOUSECLICK:
 661       /*
 662         this is a workaround: in theory the simple dvdnav_lower_button_select()+dvdnav_button_activate()
 663         should be enough (and generally it is), but there are cases when the calls to dvdnav_lower_button_select()
 664         and friends fail! Hence we have to call dvdnav_mouse_activate(priv->mousex, priv->mousey) with
 665         the coodinates saved by mp_dvdnav_update_mouse_pos().
 666         This last call always works well
 667       */
 668       status = dvdnav_mouse_activate(nav, pci, priv->mousex, priv->mousey);
 669       break;
 670     default:
 671       mp_msg(MSGT_CPLAYER, MSGL_V, "Unknown DVDNAV cmd %d\n", cmd);
 672       break;
 673   }
 674
 675   if(status == DVDNAV_STATUS_OK)
 676     dvdnav_get_current_highlight(nav, button);
 677 }
 678
 679 void mp_dvdnav_update_mouse_pos(stream_t *stream, int32_t x, int32_t y, int* button) {
 680   dvdnav_priv_t * priv = stream->priv;
 681   dvdnav_t *nav = priv->dvdnav;
 682   dvdnav_status_t status;
 683   pci_t *pci = dvdnav_get_current_nav_pci(nav);
 684
 685   if(!pci) return;
 686
 687   status = dvdnav_mouse_select(nav, pci, x, y);
 688   if(status == DVDNAV_STATUS_OK) dvdnav_get_current_highlight(nav, button);
 689   else *button = -1;
 690   priv->mousex = x;
 691   priv->mousey = y;
 692 }
 693
 694 static int mp_dvdnav_get_aid_from_format (stream_t *stream, int index, uint8_t lg) {
 695   dvdnav_priv_t * priv = stream->priv;
 696   uint8_t format;
 697
 698   format = dvdnav_audio_stream_format(priv->dvdnav, lg);
 699   switch(format) {
 700   case DVDNAV_FORMAT_AC3:
 701     return (index + 128);
 702   case DVDNAV_FORMAT_DTS:
 703     return (index + 136);
 704   case DVDNAV_FORMAT_LPCM:
 705     return (index + 160);
 706   case DVDNAV_FORMAT_MPEGAUDIO:
 707     return index;
 708   default:
 709     return -1;
 710   }
 711
 712   return -1;
 713 }
 714
 715 /**
 716  * \brief mp_dvdnav_aid_from_audio_num() returns the audio id corresponding to the logical number
 717  * \param stream: - stream pointer
 718  * \param audio_num: - logical number
 719  * \return -1 on error, current subtitle id if successful
 720  */
 721 int mp_dvdnav_aid_from_audio_num(stream_t *stream, int audio_num) {
 722   dvdnav_priv_t * priv = stream->priv;
 723   int k;
 724   uint8_t lg;
 725
 726   for(k=0; k<32; k++) {
 727     lg = dvdnav_get_audio_logical_stream(priv->dvdnav, k);
 728     if (lg == 0xff) continue;
 729     if (lg != audio_num) continue;
 730
 731     return mp_dvdnav_get_aid_from_format (stream, k, lg);
 732   }
 733   return -1;
 734 }
 735
 736 /**
 737  * \brief mp_dvdnav_aid_from_lang() returns the audio id corresponding to the language code 'lang'
 738  * \param stream: - stream pointer
 739  * \param lang: 2-characters language code[s], eventually separated by spaces of commas
 740  * \return -1 on error, current subtitle id if successful
 741  */
 742 int mp_dvdnav_aid_from_lang(stream_t *stream, unsigned char *language) {
 743   dvdnav_priv_t * priv = stream->priv;
 744   int k;
 745   uint8_t lg;
 746   uint16_t lang, lcode;
 747
 748   while(language && strlen(language)>=2) {
 749     lcode = (language[0] << 8) | (language[1]);
 750     for(k=0; k<32; k++) {
 751       lg = dvdnav_get_audio_logical_stream(priv->dvdnav, k);
 752       if(lg == 0xff) continue;
 753       lang = dvdnav_audio_stream_to_lang(priv->dvdnav, lg);
 754       if(lang != 0xFFFF && lang == lcode)
 755         return mp_dvdnav_get_aid_from_format (stream, k, lg);
 756     }
 757     language += 2;
 758     while(language[0]==',' || language[0]==' ') ++language;
 759   }
 760   return -1;
 761 }
 762
 763 /**
 764  * \brief mp_dvdnav_lang_from_aid() assigns to buf the language corresponding to audio id 'aid'
 765  * \param stream: - stream pointer
 766  * \param sid: physical subtitle id
 767  * \param buf: buffer to contain the 2-chars language string
 768  * \return 0 on error, 1 if successful
 769  */
 770 int mp_dvdnav_lang_from_aid(stream_t *stream, int aid, unsigned char *buf) {
 771   uint8_t lg;
 772   uint16_t lang;
 773   dvdnav_priv_t * priv = stream->priv;
 774
 775   if(aid < 0)
 776     return 0;
 777   lg = dvdnav_get_audio_logical_stream(priv->dvdnav, aid & 0x7);
 778   if(lg == 0xff) return 0;
 779   lang = dvdnav_audio_stream_to_lang(priv->dvdnav, lg);
 780   if(lang == 0xffff) return 0;
 781   buf[0] = lang >> 8;
 782   buf[1] = lang & 0xFF;
 783   buf[2] = 0;
 784   return 1;
 785 }
 786
 787
 788 /**
 789  * \brief mp_dvdnav_sid_from_lang() returns the subtitle id corresponding to the language code 'lang'
 790  * \param stream: - stream pointer
 791  * \param lang: 2-characters language code[s], eventually separated by spaces of commas
 792  * \return -1 on error, current subtitle id if successful
 793  */
 794 int mp_dvdnav_sid_from_lang(stream_t *stream, unsigned char *language) {
 795   dvdnav_priv_t * priv = stream->priv;
 796   uint8_t lg, k;
 797   uint16_t lang, lcode;
 798
 799   while(language && strlen(language)>=2) {
 800     lcode = (language[0] << 8) | (language[1]);
 801     for(k=0; k<32; k++) {
 802       lg = dvdnav_get_spu_logical_stream(priv->dvdnav, k);
 803       if(lg == 0xff) continue;
 804       lang = dvdnav_spu_stream_to_lang(priv->dvdnav, lg);
 805       if(lang != 0xFFFF && lang == lcode) {
 806         return k;
 807       }
 808     }
 809     language += 2;
 810     while(language[0]==',' || language[0]==' ') ++language;
 811   }
 812   return -1;
 813 }
 814
 815 /**
 816  * \brief mp_dvdnav_lang_from_sid() assigns to buf the language corresponding to subtitle id 'sid'
 817  * \param stream: - stream pointer
 818  * \param sid: physical subtitle id
 819  * \param buf: buffer to contain the 2-chars language string
 820  * \return 0 on error, 1 if successful
 821  */
 822 int mp_dvdnav_lang_from_sid(stream_t *stream, int sid, unsigned char *buf) {
 823     uint8_t lg;
 824     uint16_t lang;
 825     dvdnav_priv_t *priv = stream->priv;
 826     if(sid < 0) return 0;
 827     lg = dvdnav_get_spu_logical_stream(priv->dvdnav, sid);
 828     lang = dvdnav_spu_stream_to_lang(priv->dvdnav, lg);
 829     if(lang == 0xffff) return 0;
 830     buf[0] = lang >> 8;
 831     buf[1] = lang & 0xFF;
 832     buf[2] = 0;
 833     return 1;
 834 }
 835
 836 /**
 837  * \brief mp_dvdnav_number_of_subs() returns the count of available subtitles
 838  * \param stream: - stream pointer
 839  * \return 0 on error, something meaningful otherwise
 840  */
 841 int mp_dvdnav_number_of_subs(stream_t *stream) {
 842   dvdnav_priv_t * priv = stream->priv;
 843   uint8_t lg, k, n=0;
 844
 845   if (priv->state & NAV_FLAG_VTS_DOMAIN) return 0;
 846   for(k=0; k<32; k++) {
 847     lg = dvdnav_get_spu_logical_stream(priv->dvdnav, k);
 848     if(lg == 0xff) continue;
 849     n++;
 850   }
 851   return n;
 852 }
 853
 854 /**
 855  * \brief mp_dvdnav_get_spu_clut() returns the spu clut
 856  * \param stream: - stream pointer
 857  * \return spu clut pointer
 858  */
 859 unsigned int *mp_dvdnav_get_spu_clut(stream_t *stream) {
 860     dvdnav_priv_t *priv = stream->priv;
 861     return (priv->state & NAV_FLAG_SPU_SET) ? priv->spu_clut : NULL;
 862 }
 863
 864 /**
 865  * \brief mp_dvdnav_get_highlight() get dvdnav highlight struct
 866  * \param stream: - stream pointer
 867  * \param hl    : - highlight struct pointer
 868  */
 869 void mp_dvdnav_get_highlight (stream_t *stream, nav_highlight_t *hl) {
 870   dvdnav_priv_t *priv = stream->priv;
 871   dvdnav_highlight_event_t hlev = priv->hlev;
 872
 873   hl->sx = hlev.sx;
 874   hl->sy = hlev.sy;
 875   hl->ex = hlev.ex;
 876   hl->ey = hlev.ey;
 877   hl->palette = hlev.palette;
 878 }
 879
 880 void mp_dvdnav_switch_title (stream_t *stream, int title) {
 881   dvdnav_priv_t *priv = stream->priv;
 882   uint32_t titles;
 883
 884   dvdnav_get_number_of_titles (priv->dvdnav, &titles);
 885   if (title > 0 && title <= titles)
 886     dvdnav_title_play (priv->dvdnav, title);
 887 }
 888
 889 /**
 890  * \brief Check if end of stream has been reached
 891  * \param stream: - stream pointer
 892  * \return 1 on really eof
 893  */
 894 int mp_dvdnav_is_eof (stream_t *stream) {
 895   return ((dvdnav_priv_t *) stream->priv)->state & NAV_FLAG_EOF;
 896 }
 897
 898 /**
 899  * \brief Skip still frame
 900  * \param stream: - stream pointer
 901  * \return 0 on success
 902  */
 903 int mp_dvdnav_skip_still (stream_t *stream) {
 904   dvdnav_priv_t *priv = stream->priv;
 905   if (priv->still_length == 0xff)
 906     return 1;
 907   dvdnav_still_skip(priv->dvdnav);
 908   return 0;
 909 }
 910
 911 /**
 912  * \brief Skip wait event
 913  * \param stream: - stream pointer
 914  * \return 0 on success
 915  */
 916 int mp_dvdnav_skip_wait (stream_t *stream) {
 917   dvdnav_priv_t *priv = stream->priv;
 918   if (!(priv->state & NAV_FLAG_WAIT))
 919     return 1;
 920   priv->state &= ~NAV_FLAG_WAIT;
 921   dvdnav_wait_skip(priv->dvdnav);
 922   return 0;
 923 }
 924
 925 /**
 926  * \brief Set wait mode
 927  * \param stream  : - stream pointer
 928  * \param mode    : - if true, then suspend block read
 929  * \param automode: - if true, then VTS or cell change set wait mode
 930  */
 931 void mp_dvdnav_read_wait (stream_t *stream, int mode, int automode) {
 932   dvdnav_priv_t *priv = stream->priv;
 933   if (mode == 0)
 934     priv->state &= ~NAV_FLAG_WAIT_READ;
 935   if (mode > 0)
 936     priv->state |= NAV_FLAG_WAIT_READ;
 937   if (automode == 0)
 938     priv->state &= ~NAV_FLAG_WAIT_READ_AUTO;
 939   if (automode > 0)
 940     priv->state |= NAV_FLAG_WAIT_READ_AUTO;
 941 }
 942
 943 /**
 944  * \brief Check if cell has changed
 945  * \param stream: - stream pointer
 946  * \param clear : - if true, then clear cell change flag
 947  * \return 1 if cell has changed
 948  */
 949 int mp_dvdnav_cell_has_changed (stream_t *stream, int clear) {
 950   dvdnav_priv_t *priv = stream->priv;
 951   if (!(priv->state & NAV_FLAG_CELL_CHANGE))
 952     return 0;
 953   if (clear) {
 954     priv->state &= ~NAV_FLAG_CELL_CHANGE;
 955     priv->state |= NAV_FLAG_STREAM_CHANGE;
 956   }
 957   return 1;
 958 }
 959
 960 /**
 961  * \brief Check if audio has changed
 962  * \param stream: - stream pointer
 963  * \param clear : - if true, then clear audio change flag
 964  * \return 1 if audio has changed
 965  */
 966 int mp_dvdnav_audio_has_changed (stream_t *stream, int clear) {
 967   dvdnav_priv_t *priv = stream->priv;
 968
 969   if (!(priv->state & NAV_FLAG_AUDIO_CHANGE))
 970     return 0;
 971
 972   if (clear)
 973     priv->state &= ~NAV_FLAG_AUDIO_CHANGE;
 974
 975   return 1;
 976 }
 977
 978 /**
 979  * \brief Check if SPU has changed
 980  * \param stream: - stream pointer
 981  * \param clear : - if true, then clear spu change flag
 982  * \return 1 if spu has changed
 983  */
 984 int mp_dvdnav_spu_has_changed (stream_t *stream, int clear) {
 985   dvdnav_priv_t *priv =  stream->priv;
 986
 987   if (!(priv->state & NAV_FLAG_SPU_CHANGE))
 988     return 0;
 989
 990   if (clear)
 991     priv->state &= ~NAV_FLAG_SPU_CHANGE;
 992
 993   return 1;
 994 }
 995
 996 /* Notify if something has changed in stream
 997  * Can be related to title, chapter, audio or SPU
 998  */
 999 int mp_dvdnav_stream_has_changed (stream_t *stream) {
1000   dvdnav_priv_t *priv = stream->priv;
1001
1002   if (!(priv->state & NAV_FLAG_STREAM_CHANGE))
1003     return 0;
1004
1005   priv->state &= ~NAV_FLAG_STREAM_CHANGE;
1006   return 1;
1007 }
1008
1009 const stream_info_t stream_info_dvdnav = {
1010   "DVDNAV stream",
1011   "null",
1012   "",
1013   "",
1014   open_s,
1015   { "dvdnav", NULL },
1016   &stream_opts,
1017   1 // Urls are an option string
1018 };