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