modules/access/bluray.c

   1 /*****************************************************************************
   2  * bluray.c: Blu-ray disc support plugin
   3  *****************************************************************************
   4  * Copyright © 2010-2011 VideoLAN, VLC authors and libbluray AUTHORS
   5  *
   6  * Authors: Jean-Baptiste Kempf <jb@videolan.org>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21  *****************************************************************************/
  22
  23 #ifdef HAVE_CONFIG_H
  24 # include "config.h"
  25 #endif
  26
  27 #include <assert.h>
  28 #include <limits.h>                         /* PATH_MAX */
  29
  30 #include <vlc_common.h>
  31 #include <vlc_plugin.h>
  32 #include <vlc_demux.h>                      /* demux_t */
  33 #include <vlc_input.h>                      /* Seekpoints, chapters */
  34 #include <vlc_dialog.h>                     /* BD+/AACS warnings */
  35
  36 #include <libbluray/bluray.h>
  37 #include <libbluray/meta_data.h>
  38
  39 /*****************************************************************************
  40  * Module descriptor
  41  *****************************************************************************/
  42
  43 /* Callbacks */
  44 static int  blurayOpen ( vlc_object_t * );
  45 static void blurayClose( vlc_object_t * );
  46
  47 vlc_module_begin ()
  48     set_shortname( N_("BluRay") )
  49     set_description( N_("Blu-Ray Disc support (libbluray)") )
  50
  51     set_category( CAT_INPUT )
  52     set_subcategory( SUBCAT_INPUT_ACCESS )
  53     set_capability( "access_demux", 200)
  54
  55     add_shortcut( "bluray", "file" )
  56
  57     set_callbacks( blurayOpen, blurayClose )
  58 vlc_module_end ()
  59
  60
  61 struct demux_sys_t
  62 {
  63     BLURAY         *bluray;
  64
  65     /* Titles */
  66     unsigned int    i_title;
  67     unsigned int    i_longest_title;
  68     input_title_t **pp_title;
  69
  70     /* TS stream */
  71     stream_t       *p_parser;
  72 };
  73
  74 /*****************************************************************************
  75  * Local prototypes
  76  *****************************************************************************/
  77 static int     blurayControl(demux_t *, int, va_list);
  78 static int     blurayDemux  (demux_t *);
  79
  80 static int     blurayInitTitles(demux_t *p_demux );
  81 static int     bluraySetTitle(demux_t *p_demux, int i_title);
  82
  83 #define FROM_TICKS(a) (a*CLOCK_FREQ / INT64_C(90000))
  84 #define TO_TICKS(a)   (a*INT64_C(90000)/CLOCK_FREQ)
  85 #define CUR_LENGTH    p_sys->pp_title[p_demux->info.i_title]->i_length
  86
  87 /*****************************************************************************
  88  * blurayOpen: module init function
  89  *****************************************************************************/
  90 static int blurayOpen( vlc_object_t *object )
  91 {
  92     demux_t *p_demux = (demux_t*)object;
  93     demux_sys_t *p_sys;
  94
  95     char *pos_title;
  96     int i_title = -1;
  97     char bd_path[PATH_MAX];
  98     const char *error_msg = NULL;
  99
 100     if (strcmp(p_demux->psz_access, "bluray")) {
 101         // TODO BDMV support, once we figure out what to do in libbluray
 102         return VLC_EGENERIC;
 103     }
 104
 105     /* */
 106     p_demux->p_sys = p_sys = malloc(sizeof(*p_sys));
 107     if (unlikely(!p_sys)) {
 108         return VLC_ENOMEM;
 109     }
 110     p_sys->p_parser = NULL;
 111
 112     /* init demux info fields */
 113     p_demux->info.i_update    = 0;
 114     p_demux->info.i_title     = 0;
 115     p_demux->info.i_seekpoint = 0;
 116
 117     TAB_INIT( p_sys->i_title, p_sys->pp_title );
 118
 119     /* store current bd_path */
 120     strncpy(bd_path, p_demux->psz_file, sizeof(bd_path));
 121     bd_path[PATH_MAX - 1] = '\0';
 122
 123     p_sys->bluray = bd_open(bd_path, NULL);
 124     if (!p_sys->bluray) {
 125         free(p_sys);
 126         return VLC_EGENERIC;
 127     }
 128
 129     /* Warning the user about AACS/BD+ */
 130     const BLURAY_DISC_INFO *disc_info = bd_get_disc_info(p_sys->bluray);
 131     msg_Info(p_demux, "First play: %i, Top menu: %i\n"
 132                       "HDMV Titles: %i, BD-J Titles: %i, Other: %i",
 133              disc_info->first_play_supported, disc_info->top_menu_supported,
 134              disc_info->num_hdmv_titles, disc_info->num_bdj_titles,
 135              disc_info->num_unsupported_titles);
 136
 137     /* AACS */
 138     if (disc_info->aacs_detected) {
 139         if (!disc_info->libaacs_detected) {
 140             error_msg = _("This Blu-Ray Disc needs a library for AACS decoding, "
 141                       "and your system does not have it.");
 142             goto error;
 143         }
 144         if (!disc_info->aacs_handled) {
 145             error_msg = _("Your system AACS decoding library does not work. "
 146                       "Missing keys?");
 147             goto error;
 148         }
 149     }
 150
 151     /* BD+ */
 152     if (disc_info->bdplus_detected) {
 153         if (!disc_info->libbdplus_detected) {
 154             error_msg = _("This Blu-Ray Disc needs a library for BD+ decoding, "
 155                       "and your system does not have it.");
 156             goto error;
 157         }
 158         if (!disc_info->bdplus_handled) {
 159             error_msg = _("Your system BD+ decoding library does not work. "
 160                       "Missing configuration?");
 161             goto error;
 162         }
 163     }
 164
 165     /* Get titles and chapters */
 166     if (blurayInitTitles(p_demux) != VLC_SUCCESS) {
 167         goto error;
 168     }
 169
 170     /* get title request */
 171     if ((pos_title = strrchr(bd_path, ':'))) {
 172         /* found character ':' for title information */
 173         *(pos_title++) = '\0';
 174         i_title = atoi(pos_title);
 175     }
 176
 177     /* set start title number */
 178     if (bluraySetTitle(p_demux, i_title) != VLC_SUCCESS) {
 179         msg_Err( p_demux, "Could not set the title %d", i_title );
 180         goto error;
 181     }
 182
 183     p_sys->p_parser   = stream_DemuxNew(p_demux, "ts", p_demux->out);
 184     if (!p_sys->p_parser) {
 185         msg_Err(p_demux, "Failed to create TS demuxer");
 186         goto error;
 187     }
 188
 189     p_demux->pf_control = blurayControl;
 190     p_demux->pf_demux   = blurayDemux;
 191
 192     return VLC_SUCCESS;
 193
 194 error:
 195     if (error_msg)
 196         dialog_Fatal(p_demux, _("Blu-Ray error"), "%s", error_msg);
 197     blurayClose(object);
 198     return VLC_EGENERIC;
 199 }
 200
 201
 202 /*****************************************************************************
 203  * blurayClose: module destroy function
 204  *****************************************************************************/
 205 static void blurayClose( vlc_object_t *object )
 206 {
 207     demux_t *p_demux = (demux_t*)object;
 208     demux_sys_t *p_sys = p_demux->p_sys;
 209
 210     if (p_sys->p_parser)
 211         stream_Delete(p_sys->p_parser);
 212
 213     /* Titles */
 214     for (unsigned int i = 0; i < p_sys->i_title; i++)
 215         vlc_input_title_Delete(p_sys->pp_title[i]);
 216     TAB_CLEAN( p_sys->i_title, p_sys->pp_title );
 217
 218     /* bd_close( NULL ) can crash */
 219     assert(p_sys->bluray);
 220     bd_close(p_sys->bluray);
 221     free(p_sys);
 222 }
 223
 224
 225 static int blurayInitTitles(demux_t *p_demux )
 226 {
 227     demux_sys_t *p_sys = p_demux->p_sys;
 228
 229     /* get and set the titles */
 230     unsigned i_title = bd_get_titles(p_sys->bluray, TITLES_RELEVANT, 60);
 231     int64_t duration = 0;
 232
 233     for (unsigned int i = 0; i < i_title; i++) {
 234         input_title_t *t = vlc_input_title_New();
 235         if (!t)
 236             break;
 237
 238         BLURAY_TITLE_INFO *title_info = bd_get_title_info(p_sys->bluray, i, 0);
 239         if (!title_info)
 240             break;
 241         t->i_length = FROM_TICKS(title_info->duration);
 242
 243         if (t->i_length > duration) {
 244             duration = t->i_length;
 245             p_sys->i_longest_title = i;
 246         }
 247
 248         for ( unsigned int j = 0; j < title_info->chapter_count; j++) {
 249             seekpoint_t *s = vlc_seekpoint_New();
 250             if (!s)
 251                 break;
 252             s->i_time_offset = title_info->chapters[j].offset;
 253
 254             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
 255         }
 256         TAB_APPEND( p_sys->i_title, p_sys->pp_title, t );
 257         bd_free_title_info(title_info);
 258     }
 259     return VLC_SUCCESS;
 260 }
 261
 262
 263 /*****************************************************************************
 264  * bluraySetTitle: select new BD title
 265  *****************************************************************************/
 266 static int bluraySetTitle(demux_t *p_demux, int i_title)
 267 {
 268     demux_sys_t *p_sys = p_demux->p_sys;
 269
 270     /* Looking for the main title, ie the longest duration */
 271     if (i_title < 0)
 272         i_title = p_sys->i_longest_title;
 273     else if ((unsigned)i_title > p_sys->i_title)
 274         return VLC_EGENERIC;
 275
 276     msg_Dbg( p_demux, "Selecting Title %i", i_title);
 277
 278     /* Select Blu-Ray title */
 279     if (bd_select_title(p_demux->p_sys->bluray, i_title) == 0 ) {
 280         msg_Err(p_demux, "cannot select bd title '%d'", p_demux->info.i_title);
 281         return VLC_EGENERIC;
 282     }
 283
 284     /* read title info and init some values */
 285     p_demux->info.i_title = i_title;
 286     p_demux->info.i_seekpoint = 0;
 287     p_demux->info.i_update |= INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 288
 289     return VLC_SUCCESS;
 290 }
 291
 292
 293 /*****************************************************************************
 294  * blurayControl: handle the controls
 295  *****************************************************************************/
 296 static int blurayControl(demux_t *p_demux, int query, va_list args)
 297 {
 298     demux_sys_t *p_sys = p_demux->p_sys;
 299     bool     *pb_bool;
 300     int64_t  *pi_64;
 301
 302     switch (query) {
 303         case DEMUX_CAN_SEEK:
 304         case DEMUX_CAN_PAUSE:
 305         case DEMUX_CAN_CONTROL_PACE:
 306              pb_bool = (bool*)va_arg( args, bool * );
 307              *pb_bool = true;
 308              break;
 309
 310         case DEMUX_GET_PTS_DELAY:
 311             pi_64 = (int64_t*)va_arg( args, int64_t * );
 312             *pi_64 =
 313                 INT64_C(1000) * var_InheritInteger( p_demux, "disc-caching" );
 314             break;
 315
 316         case DEMUX_SET_PAUSE_STATE:
 317             /* Nothing to do */
 318             break;
 319
 320         case DEMUX_SET_TITLE:
 321         {
 322             int i_title = (int)va_arg( args, int );
 323             if (bluraySetTitle(p_demux, i_title) != VLC_SUCCESS)
 324                 return VLC_EGENERIC;
 325             break;
 326         }
 327         case DEMUX_SET_SEEKPOINT:
 328         {
 329             int i_chapter = (int)va_arg( args, int );
 330             bd_seek_chapter( p_sys->bluray, i_chapter );
 331             p_demux->info.i_update = INPUT_UPDATE_SEEKPOINT;
 332             break;
 333         }
 334
 335         case DEMUX_GET_TITLE_INFO:
 336         {
 337             input_title_t ***ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 338             int *pi_int             = (int*)va_arg( args, int* );
 339             int *pi_title_offset    = (int*)va_arg( args, int* );
 340             int *pi_chapter_offset  = (int*)va_arg( args, int* );
 341
 342             /* */
 343             *pi_title_offset   = 0;
 344             *pi_chapter_offset = 0;
 345
 346             /* Duplicate local title infos */
 347             *pi_int = p_sys->i_title;
 348             *ppp_title = calloc( p_sys->i_title, sizeof(input_title_t **) );
 349             for( unsigned int i = 0; i < p_sys->i_title; i++ )
 350                 (*ppp_title)[i] = vlc_input_title_Duplicate( p_sys->pp_title[i]);
 351
 352             return VLC_SUCCESS;
 353         }
 354
 355         case DEMUX_GET_LENGTH:
 356         {
 357             int64_t *pi_length = (int64_t*)va_arg(args, int64_t *);
 358             *pi_length = CUR_LENGTH;
 359             return VLC_SUCCESS;
 360         }
 361         case DEMUX_SET_TIME:
 362         {
 363             int64_t i_time = (int64_t)va_arg(args, int64_t);
 364             bd_seek_time(p_sys->bluray, TO_TICKS(i_time));
 365             return VLC_SUCCESS;
 366         }
 367         case DEMUX_GET_TIME:
 368         {
 369             int64_t *pi_time = (int64_t*)va_arg(args, int64_t *);
 370             *pi_time = (int64_t)FROM_TICKS(bd_tell_time(p_sys->bluray));
 371             return VLC_SUCCESS;
 372         }
 373
 374         case DEMUX_GET_POSITION:
 375         {
 376             double *pf_position = (double*)va_arg( args, double * );
 377             *pf_position = (double)FROM_TICKS(bd_tell_time(p_sys->bluray))/CUR_LENGTH;
 378             return VLC_SUCCESS;
 379         }
 380         case DEMUX_SET_POSITION:
 381         {
 382             double f_position = (double)va_arg(args, double);
 383             bd_seek_time(p_sys->bluray, TO_TICKS(f_position*CUR_LENGTH));
 384             return VLC_SUCCESS;
 385         }
 386
 387         case DEMUX_GET_META:
 388         {
 389             struct meta_dl *meta = bd_get_meta(p_sys->bluray);
 390             vlc_meta_t *p_meta = (vlc_meta_t *) va_arg (args, vlc_meta_t*);
 391
 392             if (!EMPTY_STR(meta->di_name)) vlc_meta_SetTitle(p_meta, meta->di_name);
 393
 394             if (!EMPTY_STR(meta->language_code)) vlc_meta_AddExtra(p_meta, "Language", meta->language_code);
 395             if (!EMPTY_STR(meta->filename)) vlc_meta_AddExtra(p_meta, "Filename", meta->filename);
 396             if (!EMPTY_STR(meta->di_alternative)) vlc_meta_AddExtra(p_meta, "Alternative", meta->di_alternative);
 397
 398             // if (meta->di_set_number > 0) vlc_meta_SetTrackNum(p_meta, meta->di_set_number);
 399             // if (meta->di_num_sets > 0) vlc_meta_AddExtra(p_meta, "Discs numbers in Set", meta->di_num_sets);
 400
 401             if (meta->thumb_count > 0 && meta->thumbnails) {
 402                 vlc_meta_SetArtURL(p_meta, meta->thumbnails[0].path);
 403             }
 404
 405             return VLC_SUCCESS;
 406         }
 407
 408         case DEMUX_CAN_RECORD:
 409         case DEMUX_GET_FPS:
 410         case DEMUX_SET_GROUP:
 411         case DEMUX_HAS_UNSUPPORTED_META:
 412         case DEMUX_GET_ATTACHMENTS:
 413             return VLC_EGENERIC;
 414         default:
 415             msg_Warn( p_demux, "unimplemented query (%d) in control", query );
 416             return VLC_EGENERIC;
 417     }
 418     return VLC_SUCCESS;
 419 }
 420
 421
 422 #define BD_TS_PACKET_SIZE (192)
 423 #define NB_TS_PACKETS (200)
 424
 425 static int blurayDemux(demux_t *p_demux)
 426 {
 427     demux_sys_t *p_sys = p_demux->p_sys;
 428
 429     block_t *p_block = block_New(p_demux, NB_TS_PACKETS * (int64_t)BD_TS_PACKET_SIZE);
 430     if (!p_block) {
 431         return -1;
 432     }
 433
 434     int nread = bd_read(p_sys->bluray, p_block->p_buffer,
 435                         NB_TS_PACKETS * BD_TS_PACKET_SIZE);
 436     if (nread < 0) {
 437         block_Release(p_block);
 438         return nread;
 439     }
 440
 441     p_block->i_buffer = nread;
 442
 443     stream_DemuxSend( p_sys->p_parser, p_block );
 444
 445     return 1;
 446 }