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