stream/stream_dvdnav.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include "config.h"
  20
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <unistd.h>
  24 #include <string.h>
  25 #include <errno.h>
  26 #include "mp_msg.h"
  27 #include "osdep/timer.h"
  28 #include "input/input.h"
  29 #include "stream.h"
  30 #include "libmpdemux/demuxer.h"
  31 #include <dvdnav/dvdnav.h>
  32 #include "stream_dvdnav.h"
  33 #include "libvo/video_out.h"
  34 #include "libavutil/common.h"
  35 #include "spudec.h"
  36 #include "m_option.h"
  37 #include "m_struct.h"
  38 #include "stream_dvd_common.h"
  39
  40 /* state flags */
  41 typedef enum {
  42   NAV_FLAG_EOF                  = 1 << 0,  /* end of stream has been reached */
  43   NAV_FLAG_WAIT                 = 1 << 1,  /* wait event */
  44   NAV_FLAG_WAIT_SKIP            = 1 << 2,  /* wait skip disable */
  45   NAV_FLAG_CELL_CHANGE          = 1 << 3,  /* cell change event */
  46   NAV_FLAG_WAIT_READ_AUTO       = 1 << 4,  /* wait read auto mode */
  47   NAV_FLAG_WAIT_READ            = 1 << 5,  /* suspend read from stream */
  48   NAV_FLAG_VTS_DOMAIN           = 1 << 6,  /* vts domain */
  49   NAV_FLAG_SPU_SET              = 1 << 7,  /* spu_clut is valid */
  50   NAV_FLAG_STREAM_CHANGE        = 1 << 8,  /* title, chapter, audio or SPU */
  51   NAV_FLAG_AUDIO_CHANGE         = 1 << 9,  /* audio stream change event */
  52   NAV_FLAG_SPU_CHANGE           = 1 << 10, /* spu stream change event */
  53 } dvdnav_state_t;
  54
  55 typedef struct {
  56   dvdnav_t *       dvdnav;              /* handle to libdvdnav stuff */
  57   char *           filename;            /* path */
  58   unsigned int     duration;            /* in milliseconds */
  59   int              mousex, mousey;
  60   int              title;
  61   unsigned int     spu_clut[16];
  62   dvdnav_highlight_event_t hlev;
  63   int              still_length;        /* still frame duration */
  64   unsigned int     state;
  65 } dvdnav_priv_t;
  66
  67 static struct stream_priv_s {
  68   int track;
  69   char* device;
  70 } stream_priv_dflts = {
  71   0,
  72   NULL
  73 };
  74
  75 #define ST_OFF(f) M_ST_OFF(struct stream_priv_s,f)
  76 /// URL definition
  77 static const m_option_t stream_opts_fields[] = {
  78   {"filename",  ST_OFF(device), CONF_TYPE_STRING, 0, 0, 0, NULL },
  79   {"hostname",  ST_OFF(track),  CONF_TYPE_INT, M_OPT_RANGE, 1, 99, NULL},
  80   { NULL, NULL, 0, 0, 0, 0,  NULL }
  81 };
  82 static const struct m_struct_st stream_opts = {
  83   "dvd",
  84   sizeof(struct stream_priv_s),
  85   &stream_priv_dflts,
  86   stream_opts_fields
  87 };
  88
  89 static int seek(stream_t *s, off_t newpos);
  90 static void show_audio_subs_languages(dvdnav_t *nav);
  91
  92 static dvdnav_priv_t * new_dvdnav_stream(char * filename) {
  93   const char * title_str;
  94   dvdnav_priv_t *priv;
  95
  96   if (!filename)
  97     return NULL;
  98
  99   if (!(priv=calloc(1,sizeof(dvdnav_priv_t))))
 100     return NULL;
 101
 102   if (!(priv->filename=strdup(filename))) {
 103     free(priv);
 104     return NULL;
 105   }
 106
 107   dvd_set_speed(priv->filename, dvd_speed);
 108
 109   if(dvdnav_open(&(priv->dvdnav),priv->filename)!=DVDNAV_STATUS_OK)
 110   {
 111     free(priv->filename);
 112     free(priv);
 113     return NULL;
 114   }
 115
 116   if (!priv->dvdnav) {
 117     free(priv);
 118     return NULL;
 119   }
 120
 121   if(1) //from vlc: if not used dvdnav from cvs will fail
 122   {
 123     int len, event;
 124     char buf[2048];
 125
 126     dvdnav_get_next_block(priv->dvdnav,buf,&event,&len);
 127     dvdnav_sector_search(priv->dvdnav, 0, SEEK_SET);
 128   }
 129
 130   /* turn off dvdnav caching */
 131   dvdnav_set_readahead_flag(priv->dvdnav, 0);
 132   if(dvdnav_set_PGC_positioning_flag(priv->dvdnav, 1) != DVDNAV_STATUS_OK)
 133     mp_msg(MSGT_OPEN,MSGL_ERR,"stream_dvdnav, failed to set PGC positioning\n");
 134   /* report the title?! */
 135   if (dvdnav_get_title_string(priv->dvdnav,&title_str)==DVDNAV_STATUS_OK) {
 136     mp_msg(MSGT_IDENTIFY, MSGL_INFO,"Title: '%s'\n",title_str);
 137   }
 138
 139   //dvdnav_event_clear(priv);
 140
 141   return priv;
 142 }
 143
 144 static void dvdnav_get_highlight (dvdnav_priv_t *priv, int display_mode) {
 145   pci_t *pnavpci = NULL;
 146   dvdnav_highlight_event_t *hlev = &(priv->hlev);
 147   int btnum;
 148
 149   if (!priv || !priv->dvdnav)
 150     return;
 151
 152   pnavpci = dvdnav_get_current_nav_pci (priv->dvdnav);
 153   if (!pnavpci)
 154     return;
 155
 156   dvdnav_get_current_highlight (priv->dvdnav, &(hlev->buttonN));
 157   hlev->display = display_mode; /* show */
 158
 159   if (hlev->buttonN > 0 && pnavpci->hli.hl_gi.btn_ns > 0 && hlev->display) {
 160     for (btnum = 0; btnum < pnavpci->hli.hl_gi.btn_ns; btnum++) {
 161       btni_t *btni = &(pnavpci->hli.btnit[btnum]);
 162
 163       if (hlev->buttonN == btnum + 1) {
 164         hlev->sx = FFMIN (btni->x_start, btni->x_end);
 165         hlev->ex = FFMAX (btni->x_start, btni->x_end);
 166         hlev->sy = FFMIN (btni->y_start, btni->y_end);
 167         hlev->ey = FFMAX (btni->y_start, btni->y_end);
 168
 169         hlev->palette = (btni->btn_coln == 0) ? 0 :
 170           pnavpci->hli.btn_colit.btn_coli[btni->btn_coln - 1][0];
 171         break;
 172       }
 173     }
 174   } else { /* hide button or no button */
 175     hlev->sx = hlev->ex = 0;
 176     hlev->sy = hlev->ey = 0;
 177     hlev->palette = hlev->buttonN = 0;
 178   }
 179 }
 180
 181 static inline int dvdnav_get_duration (int length) {
 182   return (length == 255) ? 0 : length * 1000;
 183 }
 184
 185 static int dvdnav_stream_read(dvdnav_priv_t * priv, unsigned char *buf, int *len) {
 186   int event = DVDNAV_NOP;
 187
 188   *len=-1;
 189   if (dvdnav_get_next_block(priv->dvdnav,buf,&event,len)!=DVDNAV_STATUS_OK) {
 190     mp_msg(MSGT_OPEN,MSGL_V, "Error getting next block from DVD %d (%s)\n",event, dvdnav_err_to_string(priv->dvdnav) );
 191     *len=-1;
 192   }
 193   else if (event!=DVDNAV_BLOCK_OK) {
 194     // need to handle certain events internally (like skipping stills)
 195     switch (event) {
 196       case DVDNAV_NAV_PACKET:
 197         return event;
 198       case DVDNAV_STILL_FRAME: {
 199         dvdnav_still_event_t *still_event = (dvdnav_still_event_t *) buf;
 200         priv->still_length = still_event->length;
 201         /* set still frame duration */
 202         priv->duration = dvdnav_get_duration (priv->still_length);
 203         if (priv->still_length <= 1) {
 204           pci_t *pnavpci = dvdnav_get_current_nav_pci (priv->dvdnav);
 205           priv->duration = mp_dvdtimetomsec (&pnavpci->pci_gi.e_eltm);
 206         }
 207         break;
 208       }
 209       case DVDNAV_HIGHLIGHT: {
 210         dvdnav_get_highlight (priv, 1);
 211         break;
 212       }
 213       case DVDNAV_CELL_CHANGE: {
 214         dvdnav_cell_change_event_t *ev =  (dvdnav_cell_change_event_t*)buf;
 215         uint32_t nextstill;
 216
 217         priv->state &= ~NAV_FLAG_WAIT_SKIP;
 218         priv->state |= NAV_FLAG_STREAM_CHANGE;
 219         if(ev->pgc_length)
 220           priv->duration = ev->pgc_length/90;
 221
 222         if (dvdnav_is_domain_vts(priv->dvdnav)) {
 223           mp_msg(MSGT_IDENTIFY, MSGL_INFO, "DVDNAV_TITLE_IS_MOVIE\n");
 224           priv->state &= ~NAV_FLAG_VTS_DOMAIN;
 225         } else {
 226           mp_msg(MSGT_IDENTIFY, MSGL_INFO, "DVDNAV_TITLE_IS_MENU\n");
 227           priv->state |= NAV_FLAG_VTS_DOMAIN;
 228         }
 229
 230         nextstill = dvdnav_get_next_still_flag (priv->dvdnav);
 231         if (nextstill) {
 232           priv->duration = dvdnav_get_duration (nextstill);
 233           priv->still_length = nextstill;
 234           if (priv->still_length <= 1) {
 235             pci_t *pnavpci = dvdnav_get_current_nav_pci (priv->dvdnav);
 236             priv->duration = mp_dvdtimetomsec (&pnavpci->pci_gi.e_eltm);
 237           }
 238         }
 239
 240         break;
 241       }
 242       case DVDNAV_SPU_CLUT_CHANGE: {
 243         memcpy(priv->spu_clut, buf, 16*sizeof(unsigned int));
 244         priv->state |= NAV_FLAG_SPU_SET;
 245         break;
 246       }
 247       case DVDNAV_WAIT: {
 248         if ((priv->state & NAV_FLAG_WAIT_SKIP) &&
 249             !(priv->state & NAV_FLAG_WAIT))
 250           dvdnav_wait_skip (priv->dvdnav);
 251         else
 252           priv->state |= NAV_FLAG_WAIT;
 253         break;
 254       }
 255       case DVDNAV_VTS_CHANGE: {
 256         priv->state &= ~NAV_FLAG_WAIT_SKIP;
 257         priv->state |= NAV_FLAG_STREAM_CHANGE;
 258         break;
 259       }
 260       case DVDNAV_SPU_STREAM_CHANGE: {
 261         priv->state |= NAV_FLAG_STREAM_CHANGE;
 262         break;
 263       }
 264     }
 265
 266     *len=0;
 267   }
 268   return event;
 269 }
 270
 271 static void update_title_len(stream_t *stream) {
 272   dvdnav_priv_t *priv = stream->priv;
 273   dvdnav_status_t status;
 274   uint32_t pos = 0, len = 0;
 275
 276   status = dvdnav_get_position(priv->dvdnav, &pos, &len);
 277   if(status == DVDNAV_STATUS_OK && len) {
 278     stream->end_pos = (off_t) len * 2048;
 279     stream->seek = seek;
 280   } else {
 281     stream->seek = NULL;
 282     stream->end_pos = 0;
 283   }
 284 }
 285
 286
 287 static int seek(stream_t *s, off_t newpos) {
 288   uint32_t sector = 0;
 289   dvdnav_priv_t *priv = s->priv;
 290
 291   if(s->end_pos && newpos > s->end_pos)
 292      newpos = s->end_pos;
 293   sector = newpos / 2048ULL;
 294   if(dvdnav_sector_search(priv->dvdnav, (uint64_t) sector, SEEK_SET) != DVDNAV_STATUS_OK)
 295     goto fail;
 296
 297   s->pos = newpos;
 298
 299   return 1;
 300
 301 fail:
 302   mp_msg(MSGT_STREAM,MSGL_INFO,"dvdnav_stream, seeking to %"PRIu64" failed: %s\n", newpos, dvdnav_err_to_string(priv->dvdnav));
 303
 304   return 1;
 305 }
 306
 307 static void stream_dvdnav_close(stream_t *s) {
 308   dvdnav_priv_t *priv = s->priv;
 309   dvdnav_close(priv->dvdnav);
 310   priv->dvdnav = NULL;
 311   dvd_set_speed(priv->filename, -1);
 312   free(priv);
 313 }
 314
 315
 316 static int fill_buffer(stream_t *s, char *but, int len)
 317 {
 318     int event;
 319
 320     dvdnav_priv_t* priv=s->priv;
 321     if (priv->state & NAV_FLAG_WAIT_READ) /* read is suspended */
 322       return -1;
 323     len=0;
 324     if(!s->end_pos)
 325       update_title_len(s);
 326     while(!len) /* grab all event until DVDNAV_BLOCK_OK (len=2048), DVDNAV_STOP or DVDNAV_STILL_FRAME */
 327     {
 328       event=dvdnav_stream_read(priv, s->buffer, &len);
 329       if(event==-1 || len==-1)
 330       {
 331         mp_msg(MSGT_CPLAYER,MSGL_ERR, "DVDNAV stream read error!\n");
 332         return 0;
 333       }
 334       if (event != DVDNAV_BLOCK_OK)
 335         dvdnav_get_highlight (priv, 1);
 336       switch (event) {
 337         case DVDNAV_STOP: {
 338           priv->state |= NAV_FLAG_EOF;
 339           return len;
 340         }
 341         case DVDNAV_BLOCK_OK:
 342         case DVDNAV_NAV_PACKET:
 343         case DVDNAV_STILL_FRAME:
 344           return len;
 345         case DVDNAV_WAIT: {
 346           if (priv->state & NAV_FLAG_WAIT)
 347             return len;
 348           break;
 349         }
 350         case DVDNAV_VTS_CHANGE: {
 351           int tit = 0, part = 0;
 352           dvdnav_vts_change_event_t *vts_event = (dvdnav_vts_change_event_t *)s->buffer;
 353           mp_msg(MSGT_CPLAYER,MSGL_INFO, "DVDNAV, switched to title: %d\r\n", vts_event->new_vtsN);
 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           s->end_pos = 0;
 360           update_title_len(s);
 361           show_audio_subs_languages(priv->dvdnav);
 362           if (priv->state & NAV_FLAG_WAIT_READ_AUTO)
 363             priv->state |= NAV_FLAG_WAIT_READ;
 364           if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) == DVDNAV_STATUS_OK) {
 365             mp_msg(MSGT_CPLAYER,MSGL_V, "\r\nDVDNAV, NEW TITLE %d\r\n", tit);
 366             dvdnav_get_highlight (priv, 0);
 367             if(priv->title > 0 && tit != priv->title) {
 368               priv->state |= NAV_FLAG_EOF;
 369               return 0;
 370             }
 371           }
 372           break;
 373         }
 374         case DVDNAV_CELL_CHANGE: {
 375           priv->state |= NAV_FLAG_CELL_CHANGE;
 376           priv->state |= NAV_FLAG_AUDIO_CHANGE;
 377           priv->state |= NAV_FLAG_SPU_CHANGE;
 378           priv->state &= ~NAV_FLAG_WAIT_SKIP;
 379           priv->state &= ~NAV_FLAG_WAIT;
 380           if (priv->state & NAV_FLAG_WAIT_READ_AUTO)
 381             priv->state |= NAV_FLAG_WAIT_READ;
 382           if(priv->title > 0 && dvd_last_chapter > 0) {
 383             int tit=0, part=0;
 384             if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) == DVDNAV_STATUS_OK && part > dvd_last_chapter) {
 385               priv->state |= NAV_FLAG_EOF;
 386               return 0;
 387             }
 388           }
 389           dvdnav_get_highlight (priv, 1);
 390         }
 391         break;
 392         case DVDNAV_AUDIO_STREAM_CHANGE:
 393           priv->state |= NAV_FLAG_AUDIO_CHANGE;
 394         break;
 395         case DVDNAV_SPU_STREAM_CHANGE:
 396           priv->state |= NAV_FLAG_SPU_CHANGE;
 397         break;
 398       }
 399   }
 400   mp_msg(MSGT_STREAM,MSGL_DBG2,"DVDNAV fill_buffer len: %d\n",len);
 401   return len;
 402 }
 403
 404 static int control(stream_t *stream, int cmd, void* arg) {
 405   dvdnav_priv_t* priv=stream->priv;
 406   int tit, part;
 407
 408   switch(cmd)
 409   {
 410     case STREAM_CTRL_SEEK_TO_CHAPTER:
 411     {
 412       int chap = *((unsigned int *)arg)+1;
 413
 414       if(chap < 1 || dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
 415         break;
 416       if(dvdnav_part_play(priv->dvdnav, tit, chap) != DVDNAV_STATUS_OK)
 417         break;
 418       return 1;
 419     }
 420     case STREAM_CTRL_GET_NUM_CHAPTERS:
 421     {
 422       if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
 423         break;
 424       if(dvdnav_get_number_of_parts(priv->dvdnav, tit, &part) != DVDNAV_STATUS_OK)
 425         break;
 426       if(!part)
 427         break;
 428       *((unsigned int *)arg) = part;
 429       return 1;
 430     }
 431     case STREAM_CTRL_GET_CURRENT_CHAPTER:
 432     {
 433       if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
 434         break;
 435       *((unsigned int *)arg) = part - 1;
 436       return 1;
 437     }
 438     case STREAM_CTRL_GET_TIME_LENGTH:
 439     {
 440       if(priv->duration || priv->still_length)
 441       {
 442         *((double *)arg) = (double)priv->duration / 1000.0;
 443         return 1;
 444       }
 445       break;
 446     }
 447     case STREAM_CTRL_GET_ASPECT_RATIO:
 448     {
 449       uint8_t ar = dvdnav_get_video_aspect(priv->dvdnav);
 450       *((double *)arg) = !ar ? 4.0/3.0 : 16.0/9.0;
 451       return 1;
 452     }
 453     case STREAM_CTRL_GET_CURRENT_TIME:
 454     {
 455       double tm;
 456       tm = dvdnav_get_current_time(priv->dvdnav)/90000.0f;
 457       if(tm != -1)
 458       {
 459         *((double *)arg) = tm;
 460         return 1;
 461       }
 462       break;
 463     }
 464     case STREAM_CTRL_SEEK_TO_TIME:
 465     {
 466       uint64_t tm = (uint64_t) (*((double*)arg) * 90000);
 467       if(dvdnav_time_search(priv->dvdnav, tm) == DVDNAV_STATUS_OK)
 468         return 1;
 469       break;
 470     }
 471     case STREAM_CTRL_GET_NUM_ANGLES:
 472     {
 473         uint32_t curr, angles;
 474         if(dvdnav_get_angle_info(priv->dvdnav, &curr, &angles) != DVDNAV_STATUS_OK)
 475           break;
 476         *((int *)arg) = angles;
 477         return 1;
 478     }
 479     case STREAM_CTRL_GET_ANGLE:
 480     {
 481         uint32_t curr, angles;
 482         if(dvdnav_get_angle_info(priv->dvdnav, &curr, &angles) != DVDNAV_STATUS_OK)
 483           break;
 484         *((int *)arg) = curr;
 485         return 1;
 486     }
 487     case STREAM_CTRL_SET_ANGLE:
 488     {
 489         uint32_t curr, angles;
 490         int new_angle = *((int *)arg);
 491         if(dvdnav_get_angle_info(priv->dvdnav, &curr, &angles) != DVDNAV_STATUS_OK)
 492           break;
 493         if(new_angle>angles || new_angle<1)
 494             break;
 495         if(dvdnav_angle_change(priv->dvdnav, new_angle) != DVDNAV_STATUS_OK)
 496         return 1;
 497     }
 498   }
 499
 500   return STREAM_UNSUPPORTED;
 501 }
 502
 503 static void identify_chapters(dvdnav_t *nav, uint32_t title)
 504 {
 505   uint64_t *parts=NULL, duration=0;
 506   uint32_t n, i, t;
 507   n = dvdnav_describe_title_chapters(nav, title, &parts, &duration);
 508   if(parts) {
 509     t = duration / 90;
 510     mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_DVD_TITLE_%d_LENGTH=%d.%03d\n", title, t / 1000, t % 1000);
 511     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "TITLE %u, CHAPTERS: ", title);
 512     for(i=0; i<n; i++) {
 513       t = parts[i] /  90000;
 514       mp_msg(MSGT_IDENTIFY, MSGL_INFO, "%02d:%02d:%02d,", t/3600, (t/60)%60, t%60);
 515     }
 516     free(parts);
 517     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "\n");
 518   }
 519 }
 520
 521 static void identify(dvdnav_priv_t *priv, struct stream_priv_s *p)
 522 {
 523   uint32_t titles=0, i;
 524   if(p->track <= 0) {
 525     dvdnav_get_number_of_titles(priv->dvdnav, &titles);
 526     for(i=0; i<titles; i++)
 527       identify_chapters(priv->dvdnav, i);
 528   }
 529   else
 530     identify_chapters(priv->dvdnav, p->track);
 531 }
 532
 533 static void show_audio_subs_languages(dvdnav_t *nav)
 534 {
 535   uint8_t lg;
 536   uint16_t i, lang, format, id, channels;
 537   int base[7] = {128, 0, 0, 0, 160, 136, 0};
 538   for(i=0; i<8; i++)
 539   {
 540     char tmp[] = "unknown";
 541     lg = dvdnav_get_audio_logical_stream(nav, i);
 542     if(lg == 0xff) continue;
 543     channels = dvdnav_audio_stream_channels(nav, lg);
 544     if(channels == 0xFFFF)
 545       channels = 2; //unknown
 546     else
 547       channels--;
 548     lang = dvdnav_audio_stream_to_lang(nav, lg);
 549     if(lang != 0xFFFF)
 550     {
 551       tmp[0] = lang >> 8;
 552       tmp[1] = lang & 0xFF;
 553       tmp[2] = 0;
 554     }
 555     format = dvdnav_audio_stream_format(nav, lg);
 556     if(format == 0xFFFF || format > 6)
 557       format = 1; //unknown
 558     id = i + base[format];
 559     mp_tmsg(MSGT_OPEN,MSGL_STATUS,"audio stream: %d format: %s (%s) language: %s aid: %d.\n", i,
 560            dvd_audio_stream_types[format], dvd_audio_stream_channels[channels], tmp, id);
 561     if (lang != 0xFFFF && lang && tmp[0])
 562         mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AID_%d_LANG=%s\n", id, tmp);
 563   }
 564
 565   for(i=0; i<32; i++)
 566   {
 567     char tmp[] = "unknown";
 568     lg = dvdnav_get_spu_logical_stream(nav, i);
 569     if(lg == 0xff) continue;
 570     lang = dvdnav_spu_stream_to_lang(nav, i);
 571     if(lang != 0xFFFF)
 572     {
 573       tmp[0] = lang >> 8;
 574       tmp[1] = lang & 0xFF;
 575       tmp[2] = 0;
 576     }
 577     mp_msg(MSGT_OPEN,MSGL_STATUS,"subtitle ( sid ): %d language: %s\n", lg, tmp);
 578     if (lang != 0xFFFF && lang && tmp[0])
 579         mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SID_%d_LANG=%s\n", lg, tmp);
 580   }
 581 }
 582
 583 static int open_s(stream_t *stream,int mode, void* opts, int* file_format) {
 584   struct stream_priv_s* p = (struct stream_priv_s*)opts;
 585   char *filename;
 586   dvdnav_priv_t *priv;
 587
 588   if(p->device) filename = p->device;
 589   else if(dvd_device) filename= dvd_device;
 590   else filename = DEFAULT_DVD_DEVICE;
 591   if(!(priv=new_dvdnav_stream(filename))) {
 592     mp_tmsg(MSGT_OPEN,MSGL_ERR,"Couldn't open DVD device: %s (%s)\n",filename, strerror(errno));
 593     return STREAM_UNSUPPORTED;
 594   }
 595
 596   if(p->track > 0) {
 597     priv->title = p->track;
 598     if(dvdnav_title_play(priv->dvdnav, p->track) != DVDNAV_STATUS_OK) {
 599       mp_msg(MSGT_OPEN,MSGL_FATAL,"dvdnav_stream, couldn't select title %d, error '%s'\n", p->track, dvdnav_err_to_string(priv->dvdnav));
 600       return STREAM_UNSUPPORTED;
 601     }
 602   } else if (p->track == 0) {
 603     if(dvdnav_menu_call(priv->dvdnav, DVD_MENU_Root) != DVDNAV_STATUS_OK)
 604       dvdnav_menu_call(priv->dvdnav, DVD_MENU_Title);
 605   }
 606   if(mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
 607     identify(priv, p);
 608   if(p->track > 0)
 609     show_audio_subs_languages(priv->dvdnav);
 610   if(dvd_angle > 1)
 611     dvdnav_angle_change(priv->dvdnav, dvd_angle);
 612
 613   stream->sector_size = 2048;
 614   stream->flags = STREAM_READ | MP_STREAM_SEEK;
 615   stream->fill_buffer = fill_buffer;
 616   stream->seek = seek;
 617   stream->control = control;
 618   stream->close = stream_dvdnav_close;
 619   stream->type = STREAMTYPE_DVDNAV;
 620   stream->priv=(void*)priv;
 621   *file_format = DEMUXER_TYPE_MPEG_PS;
 622
 623   update_title_len(stream);
 624   if(!stream->pos && p->track > 0)
 625     mp_msg(MSGT_OPEN,MSGL_ERR, "INIT ERROR: couldn't get init pos %s\r\n", dvdnav_err_to_string(priv->dvdnav));
 626
 627   mp_msg(MSGT_OPEN,MSGL_INFO, "Remember to disable MPlayer's cache when playing dvdnav:// streams (adding -nocache to your command line)\r\n");
 628
 629   return STREAM_OK;
 630 }
 631
 632
 633 void mp_dvdnav_handle_input(stream_t *stream, int cmd, int *button) {
 634   dvdnav_priv_t * priv = stream->priv;
 635   dvdnav_t *nav = priv->dvdnav;
 636   dvdnav_status_t status=DVDNAV_STATUS_ERR;
 637   pci_t *pci = dvdnav_get_current_nav_pci(nav);
 638
 639   if(cmd != MP_CMD_DVDNAV_SELECT && !pci)
 640     return;
 641
 642   switch(cmd) {
 643     case MP_CMD_DVDNAV_UP:
 644       status = dvdnav_upper_button_select(nav, pci);
 645       break;
 646     case MP_CMD_DVDNAV_DOWN:
 647       status = dvdnav_lower_button_select(nav, pci);
 648       break;
 649     case MP_CMD_DVDNAV_LEFT:
 650       status = dvdnav_left_button_select(nav, pci);
 651       break;
 652     case MP_CMD_DVDNAV_RIGHT:
 653       status = dvdnav_right_button_select(nav, pci);
 654       break;
 655     case MP_CMD_DVDNAV_MENU:
 656       status = dvdnav_menu_call(nav,DVD_MENU_Root);
 657       break;
 658     case MP_CMD_DVDNAV_PREVMENU: {
 659       int title=0, part=0;
 660
 661       dvdnav_current_title_info(nav, &title, &part);
 662       if(title) {
 663         if((status=dvdnav_menu_call(nav, DVD_MENU_Part)) == DVDNAV_STATUS_OK)
 664           break;
 665       }
 666       if((status=dvdnav_menu_call(nav, DVD_MENU_Title)) == DVDNAV_STATUS_OK)
 667         break;
 668       status=dvdnav_menu_call(nav, DVD_MENU_Root);
 669       }
 670       break;
 671     case MP_CMD_DVDNAV_SELECT:
 672       status = dvdnav_button_activate(nav, pci);
 673       break;
 674     case MP_CMD_DVDNAV_MOUSECLICK:
 675       /*
 676         this is a workaround: in theory the simple dvdnav_lower_button_select()+dvdnav_button_activate()
 677         should be enough (and generally it is), but there are cases when the calls to dvdnav_lower_button_select()
 678         and friends fail! Hence we have to call dvdnav_mouse_activate(priv->mousex, priv->mousey) with
 679         the coodinates saved by mp_dvdnav_update_mouse_pos().
 680         This last call always works well
 681       */
 682       status = dvdnav_mouse_activate(nav, pci, priv->mousex, priv->mousey);
 683       break;
 684     default:
 685       mp_msg(MSGT_CPLAYER, MSGL_V, "Unknown DVDNAV cmd %d\n", cmd);
 686       break;
 687   }
 688
 689   if(status == DVDNAV_STATUS_OK)
 690     dvdnav_get_current_highlight(nav, button);
 691 }
 692
 693 void mp_dvdnav_update_mouse_pos(stream_t *stream, int32_t x, int32_t y, int* button) {
 694   dvdnav_priv_t * priv = stream->priv;
 695   dvdnav_t *nav = priv->dvdnav;
 696   dvdnav_status_t status;
 697   pci_t *pci = dvdnav_get_current_nav_pci(nav);
 698
 699   if(!pci) return;
 700
 701   status = dvdnav_mouse_select(nav, pci, x, y);
 702   if(status == DVDNAV_STATUS_OK) dvdnav_get_current_highlight(nav, button);
 703   else *button = -1;
 704   priv->mousex = x;
 705   priv->mousey = y;
 706 }
 707
 708 static int mp_dvdnav_get_aid_from_format (stream_t *stream, int index, uint8_t lg) {
 709   dvdnav_priv_t * priv = stream->priv;
 710   uint8_t format;
 711
 712   format = dvdnav_audio_stream_format(priv->dvdnav, lg);
 713   switch(format) {
 714   case DVDNAV_FORMAT_AC3:
 715     return index + 128;
 716   case DVDNAV_FORMAT_DTS:
 717     return index + 136;
 718   case DVDNAV_FORMAT_LPCM:
 719     return index + 160;
 720   case DVDNAV_FORMAT_MPEGAUDIO:
 721     return index;
 722   default:
 723     return -1;
 724   }
 725
 726   return -1;
 727 }
 728
 729 /**
 730  * \brief mp_dvdnav_aid_from_lang() returns the audio id corresponding to the language code 'lang'
 731  * \param stream: - stream pointer
 732  * \param lang: 2-characters language code[s], eventually separated by spaces of commas
 733  * \return -1 on error, current subtitle id if successful
 734  */
 735 int mp_dvdnav_aid_from_lang(stream_t *stream, unsigned char *language) {
 736   dvdnav_priv_t * priv = stream->priv;
 737   int k;
 738   uint8_t lg;
 739   uint16_t lang, lcode;
 740
 741   while(language && strlen(language)>=2) {
 742     lcode = (language[0] << 8) | (language[1]);
 743     for(k=0; k<32; k++) {
 744       lg = dvdnav_get_audio_logical_stream(priv->dvdnav, k);
 745       if(lg == 0xff) continue;
 746       lang = dvdnav_audio_stream_to_lang(priv->dvdnav, lg);
 747       if(lang != 0xFFFF && lang == lcode)
 748         return mp_dvdnav_get_aid_from_format (stream, k, lg);
 749     }
 750     language += 2;
 751     while(language[0]==',' || language[0]==' ') ++language;
 752   }
 753   return -1;
 754 }
 755
 756 /**
 757  * \brief mp_dvdnav_lang_from_aid() assigns to buf the language corresponding to audio id 'aid'
 758  * \param stream: - stream pointer
 759  * \param sid: physical subtitle id
 760  * \param buf: buffer to contain the 2-chars language string
 761  * \return 0 on error, 1 if successful
 762  */
 763 int mp_dvdnav_lang_from_aid(stream_t *stream, int aid, unsigned char *buf) {
 764   uint8_t lg;
 765   uint16_t lang;
 766   dvdnav_priv_t * priv = stream->priv;
 767
 768   if(aid < 0)
 769     return 0;
 770   lg = dvdnav_get_audio_logical_stream(priv->dvdnav, aid & 0x7);
 771   if(lg == 0xff) return 0;
 772   lang = dvdnav_audio_stream_to_lang(priv->dvdnav, lg);
 773   if(lang == 0xffff) return 0;
 774   buf[0] = lang >> 8;
 775   buf[1] = lang & 0xFF;
 776   buf[2] = 0;
 777   return 1;
 778 }
 779
 780
 781 /**
 782  * \brief mp_dvdnav_sid_from_lang() returns the subtitle id corresponding to the language code 'lang'
 783  * \param stream: - stream pointer
 784  * \param lang: 2-characters language code[s], eventually separated by spaces of commas
 785  * \return -1 on error, current subtitle id if successful
 786  */
 787 int mp_dvdnav_sid_from_lang(stream_t *stream, unsigned char *language) {
 788   dvdnav_priv_t * priv = stream->priv;
 789   uint8_t lg, k;
 790   uint16_t lang, lcode;
 791
 792   while(language && strlen(language)>=2) {
 793     lcode = (language[0] << 8) | (language[1]);
 794     for(k=0; k<32; k++) {
 795       lg = dvdnav_get_spu_logical_stream(priv->dvdnav, k);
 796       if(lg == 0xff) continue;
 797       lang = dvdnav_spu_stream_to_lang(priv->dvdnav, k);
 798       if(lang != 0xFFFF && lang == lcode) {
 799         return lg;
 800       }
 801     }
 802     language += 2;
 803     while(language[0]==',' || language[0]==' ') ++language;
 804   }
 805   return -1;
 806 }
 807
 808 /**
 809  * \brief mp_dvdnav_lang_from_sid() assigns to buf the language corresponding to subtitle id 'sid'
 810  * \param stream: - stream pointer
 811  * \param sid: physical subtitle id
 812  * \param buf: buffer to contain the 2-chars language string
 813  * \return 0 on error, 1 if successful
 814  */
 815 int mp_dvdnav_lang_from_sid(stream_t *stream, int sid, unsigned char *buf) {
 816     uint8_t k;
 817     uint16_t lang;
 818     dvdnav_priv_t *priv = stream->priv;
 819     if(sid < 0) return 0;
 820     for (k=0; k<32; k++)
 821         if (dvdnav_get_spu_logical_stream(priv->dvdnav, k) == sid)
 822             break;
 823     if (k == 32)
 824         return 0;
 825     lang = dvdnav_spu_stream_to_lang(priv->dvdnav, k);
 826     if(lang == 0xffff) return 0;
 827     buf[0] = lang >> 8;
 828     buf[1] = lang & 0xFF;
 829     buf[2] = 0;
 830     return 1;
 831 }
 832
 833 /**
 834  * \brief mp_dvdnav_number_of_subs() returns the count of available subtitles
 835  * \param stream: - stream pointer
 836  * \return 0 on error, something meaningful otherwise
 837  */
 838 int mp_dvdnav_number_of_subs(stream_t *stream) {
 839   dvdnav_priv_t * priv = stream->priv;
 840   uint8_t lg, k, n=0;
 841
 842   if (priv->state & NAV_FLAG_VTS_DOMAIN) return 0;
 843   for(k=0; k<32; k++) {
 844     lg = dvdnav_get_spu_logical_stream(priv->dvdnav, k);
 845     if(lg == 0xff) continue;
 846     if(lg >= n) n = lg + 1;
 847   }
 848   return n;
 849 }
 850
 851 /**
 852  * \brief mp_dvdnav_get_spu_clut() returns the spu clut
 853  * \param stream: - stream pointer
 854  * \return spu clut pointer
 855  */
 856 unsigned int *mp_dvdnav_get_spu_clut(stream_t *stream) {
 857     dvdnav_priv_t *priv = stream->priv;
 858     return (priv->state & NAV_FLAG_SPU_SET) ? priv->spu_clut : NULL;
 859 }
 860
 861 /**
 862  * \brief mp_dvdnav_get_highlight() get dvdnav highlight struct
 863  * \param stream: - stream pointer
 864  * \param hl    : - highlight struct pointer
 865  */
 866 void mp_dvdnav_get_highlight (stream_t *stream, nav_highlight_t *hl) {
 867   dvdnav_priv_t *priv = stream->priv;
 868   dvdnav_highlight_event_t hlev = priv->hlev;
 869
 870   hl->sx = hlev.sx;
 871   hl->sy = hlev.sy;
 872   hl->ex = hlev.ex;
 873   hl->ey = hlev.ey;
 874   hl->palette = hlev.palette;
 875 }
 876
 877 void mp_dvdnav_switch_title (stream_t *stream, int title) {
 878   dvdnav_priv_t *priv = stream->priv;
 879   uint32_t titles;
 880
 881   dvdnav_get_number_of_titles (priv->dvdnav, &titles);
 882   if (title > 0 && title <= titles)
 883     dvdnav_title_play (priv->dvdnav, title);
 884 }
 885
 886 /**
 887  * \brief Check if end of stream has been reached
 888  * \param stream: - stream pointer
 889  * \return 1 on really eof
 890  */
 891 int mp_dvdnav_is_eof (stream_t *stream) {
 892   return ((dvdnav_priv_t *) stream->priv)->state & NAV_FLAG_EOF;
 893 }
 894
 895 /**
 896  * \brief Skip still frame
 897  * \param stream: - stream pointer
 898  * \return 0 on success
 899  */
 900 int mp_dvdnav_skip_still (stream_t *stream) {
 901   dvdnav_priv_t *priv = stream->priv;
 902   if (priv->still_length == 0xff)
 903     return 1;
 904   dvdnav_still_skip(priv->dvdnav);
 905   return 0;
 906 }
 907
 908 /**
 909  * \brief Skip wait event
 910  * \param stream: - stream pointer
 911  * \return 0 on success
 912  */
 913 int mp_dvdnav_skip_wait (stream_t *stream) {
 914   dvdnav_priv_t *priv = stream->priv;
 915   if (!(priv->state & NAV_FLAG_WAIT))
 916     return 1;
 917   priv->state &= ~NAV_FLAG_WAIT;
 918   dvdnav_wait_skip(priv->dvdnav);
 919   return 0;
 920 }
 921
 922 /**
 923  * \brief Set wait mode
 924  * \param stream  : - stream pointer
 925  * \param mode    : - if true, then suspend block read
 926  * \param automode: - if true, then VTS or cell change set wait mode
 927  */
 928 void mp_dvdnav_read_wait (stream_t *stream, int mode, int automode) {
 929   dvdnav_priv_t *priv = stream->priv;
 930   if (mode == 0)
 931     priv->state &= ~NAV_FLAG_WAIT_READ;
 932   if (mode > 0)
 933     priv->state |= NAV_FLAG_WAIT_READ;
 934   if (automode == 0)
 935     priv->state &= ~NAV_FLAG_WAIT_READ_AUTO;
 936   if (automode > 0)
 937     priv->state |= NAV_FLAG_WAIT_READ_AUTO;
 938 }
 939
 940 /**
 941  * \brief Check if cell has changed
 942  * \param stream: - stream pointer
 943  * \param clear : - if true, then clear cell change flag
 944  * \return 1 if cell has changed
 945  */
 946 int mp_dvdnav_cell_has_changed (stream_t *stream, int clear) {
 947   dvdnav_priv_t *priv = stream->priv;
 948   if (!(priv->state & NAV_FLAG_CELL_CHANGE))
 949     return 0;
 950   if (clear) {
 951     priv->state &= ~NAV_FLAG_CELL_CHANGE;
 952     priv->state |= NAV_FLAG_STREAM_CHANGE;
 953   }
 954   return 1;
 955 }
 956
 957 /**
 958  * \brief Check if audio has changed
 959  * \param stream: - stream pointer
 960  * \param clear : - if true, then clear audio change flag
 961  * \return 1 if audio has changed
 962  */
 963 int mp_dvdnav_audio_has_changed (stream_t *stream, int clear) {
 964   dvdnav_priv_t *priv = stream->priv;
 965
 966   if (!(priv->state & NAV_FLAG_AUDIO_CHANGE))
 967     return 0;
 968
 969   if (clear)
 970     priv->state &= ~NAV_FLAG_AUDIO_CHANGE;
 971
 972   return 1;
 973 }
 974
 975 /**
 976  * \brief Check if SPU has changed
 977  * \param stream: - stream pointer
 978  * \param clear : - if true, then clear spu change flag
 979  * \return 1 if spu has changed
 980  */
 981 int mp_dvdnav_spu_has_changed (stream_t *stream, int clear) {
 982   dvdnav_priv_t *priv =  stream->priv;
 983
 984   if (!(priv->state & NAV_FLAG_SPU_CHANGE))
 985     return 0;
 986
 987   if (clear)
 988     priv->state &= ~NAV_FLAG_SPU_CHANGE;
 989
 990   return 1;
 991 }
 992
 993 /* Notify if something has changed in stream
 994  * Can be related to title, chapter, audio or SPU
 995  */
 996 int mp_dvdnav_stream_has_changed (stream_t *stream) {
 997   dvdnav_priv_t *priv = stream->priv;
 998
 999   if (!(priv->state & NAV_FLAG_STREAM_CHANGE))
1000     return 0;
1001
1002   priv->state &= ~NAV_FLAG_STREAM_CHANGE;
1003   return 1;
1004 }
1005
1006 const stream_info_t stream_info_dvdnav = {
1007   "DVDNAV stream",
1008   "null",
1009   "",
1010   "",
1011   open_s,
1012   { "dvdnav", NULL },
1013   &stream_opts,
1014   1 // Urls are an option string
1015 };