stream_dvd.c

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            *((double *)arg) = !d->vts_file->vtsi_mat->vts_video_attr.display_aspect_ratio ? 4.0/3.0 : 16.0/9.0;
            return 1;
        }
    }
    return STREAM_UNSUPPORTED;
}


static int open_s(stream_t *stream,int mode, void* opts, int* file_format) {
  struct stream_priv_s* p = (struct stream_priv_s*)opts;
  char *filename;
  int k;

  filename = strdup(stream->url);
  mp_msg(MSGT_OPEN,MSGL_V,"URL: %s\n", filename);
  dvd_title = p->title;
  if(1){
    //int ret,ret2;
    dvd_priv_t *d;
    int ttn,pgc_id,pgn;
    dvd_reader_t *dvd;
    dvd_file_t *title;
    ifo_handle_t *vmg_file;
    tt_srpt_t *tt_srpt;
    ifo_handle_t *vts_file;
    pgc_t *pgc;
    /**
     * Open the disc.
     */
    if(!dvd_device) dvd_device=strdup(DEFAULT_DVD_DEVICE);
    dvd_set_speed(dvd_device, dvd_speed);
#ifdef SYS_DARWIN
    /* Dynamic DVD drive selection on Darwin */
    if(!strcmp(dvd_device, "/dev/rdiskN")) {
      int i;
      size_t len = strlen(dvd_device)+1;
      char *temp_device = malloc(len);

      for (i = 1; i < 10; i++) {
        snprintf(temp_device, len, "/dev/rdisk%d", i);
        dvd = DVDOpen(temp_device);
        if(!dvd) {
          mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_CantOpenDVD,temp_device);
        } else {
#if DVDREAD_VERSION <= LIBDVDREAD_VERSION(0,9,4)
          dvd_file_t *dvdfile = DVDOpenFile(dvd,dvd_title,DVD_READ_INFO_FILE);
          if(!dvdfile) {
            mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_CantOpenDVD,temp_device);
            DVDClose(dvd);
            continue;
          }
          DVDCloseFile(dvdfile);
#endif
          break;
        }
      }
      free(temp_device);

      if(!dvd) {
        m_struct_free(&stream_opts,opts);
        return STREAM_UNSUPPORTED;
      }
    } else
#endif /* SYS_DARWIN */
    {
        dvd = DVDOpen(dvd_device);
        if(!dvd) {
          mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_CantOpenDVD,dvd_device);
          m_struct_free(&stream_opts,opts);
          return STREAM_UNSUPPORTED;
        }
    }

    mp_msg(MSGT_OPEN,MSGL_V,"Reading disc structure, please wait...\n");

    /**
     * Load the video manager to find out the information about the titles on
     * this disc.
     */
    vmg_file = ifoOpen(dvd, 0);
    if(!vmg_file) {
      mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_DVDnoVMG);
      DVDClose( dvd );
      m_struct_free(&stream_opts,opts);
      return STREAM_UNSUPPORTED;
    }
    tt_srpt = vmg_file->tt_srpt;
    if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
    {
      int title_no; ///< title number
      mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DVD_TITLES=%d\n", tt_srpt->nr_of_srpts);
      for (title_no = 0; title_no < tt_srpt->nr_of_srpts; title_no++)
      {
        mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DVD_TITLE_%d_CHAPTERS=%d\n", title_no + 1, tt_srpt->title[title_no].nr_of_ptts);
        mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DVD_TITLE_%d_ANGLES=%d\n", title_no + 1, tt_srpt->title[title_no].nr_of_angles);
      }
    }
    if (mp_msg_test(MSGT_IDENTIFY, MSGL_V))
    {
      unsigned char discid [16]; ///< disk ID, a 128 bit MD5 sum
      int vts_no;   ///< video title set number
      for (vts_no = 1; vts_no <= vmg_file->vts_atrt->nr_of_vtss; vts_no++)
        mp_describe_titleset(dvd, tt_srpt, vts_no);
      if (DVDDiscID(dvd, discid) >= 0)
      {
        int i;
        mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_DVD_DISC_ID=");
        for (i = 0; i < 16; i ++)
          mp_msg(MSGT_IDENTIFY, MSGL_V, "%02X", discid[i]);
        mp_msg(MSGT_IDENTIFY, MSGL_V, "\n");
      }
    }
    /**
     * Make sure our title number is valid.
     */
    mp_msg(MSGT_OPEN,MSGL_STATUS, MSGTR_DVDnumTitles, tt_srpt->nr_of_srpts );
    if(dvd_title < 1 || dvd_title > tt_srpt->nr_of_srpts) {
      mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_DVDinvalidTitle, dvd_title);
      ifoClose( vmg_file );
      DVDClose( dvd );
      m_struct_free(&stream_opts,opts);
      return STREAM_UNSUPPORTED;
    }
    mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DVD_CURRENT_TITLE=%d\n", dvd_title);
    --dvd_title; // remap 1.. -> 0..
    /**
     * Make sure the chapter number is valid for this title.
     */
    mp_msg(MSGT_OPEN,MSGL_STATUS, MSGTR_DVDnumChapters, tt_srpt->title[dvd_title].nr_of_ptts);
    if(dvd_chapter<1 || dvd_chapter>tt_srpt->title[dvd_title].nr_of_ptts) {
      mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_DVDinvalidChapter, dvd_chapter);
      goto fail;
    }
    if(dvd_last_chapter>0) {
      if(dvd_last_chapter<dvd_chapter || dvd_last_chapter>tt_srpt->title[dvd_title].nr_of_ptts) {
        mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_DVDinvalidLastChapter, dvd_last_chapter);
        goto fail;
      }
    }
    --dvd_chapter; // remap 1.. -> 0..
    /* XXX No need to remap dvd_last_chapter */
    /**
     * Make sure the angle number is valid for this title.
     */
    mp_msg(MSGT_OPEN,MSGL_STATUS, MSGTR_DVDnumAngles, tt_srpt->title[dvd_title].nr_of_angles);
    if(dvd_angle<1 || dvd_angle>tt_srpt->title[dvd_title].nr_of_angles) {
      mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_DVDinvalidAngle, dvd_angle);
      goto fail;
    }
    --dvd_angle; // remap 1.. -> 0..

    ttn = tt_srpt->title[dvd_title].vts_ttn - 1;
    /**
     * Load the VTS information for the title set our title is in.
     */
    vts_file = ifoOpen( dvd, tt_srpt->title[dvd_title].title_set_nr );
    if(!vts_file) {
      mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_DVDnoIFO, tt_srpt->title[dvd_title].title_set_nr );
      goto fail;
    }
    /**
     * We've got enough info, time to open the title set data.
     */
    title = DVDOpenFile(dvd, tt_srpt->title[dvd_title].title_set_nr, DVD_READ_TITLE_VOBS);
    if(!title) {
      mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_DVDnoVOBs, tt_srpt->title[dvd_title].title_set_nr);
      ifoClose( vts_file );
      goto fail;
    }

    mp_msg(MSGT_OPEN,MSGL_V, "DVD successfully opened.\n");
    // store data
    d=malloc(sizeof(dvd_priv_t)); memset(d,0,sizeof(dvd_priv_t));
    d->dvd=dvd;
    d->title=title;
    d->vmg_file=vmg_file;
    d->tt_srpt=tt_srpt;
    d->vts_file=vts_file;
    d->cur_title = dvd_title+1;

    pgc = vts_file->vts_pgcit ? vts_file->vts_pgcit->pgci_srp[ttn].pgc : NULL;
    /**
     * Check number of audio channels and types
     */
    {
      d->nr_of_channels=0;
      if(vts_file->vts_pgcit) {
        int i;
        for(i=0;i<8;i++)
#ifdef USE_DVDREAD_INTERNAL
          if(pgc->audio_control[i].present) {
#else
          if(pgc->audio_control[i] & 0x8000) {
#endif
            audio_attr_t * audio = &vts_file->vtsi_mat->vts_audio_attr[i];
            int language = 0;
            char tmp[] = "unknown";
            stream_language_t *audio_stream = &d->audio_streams[d->nr_of_channels];

            if(audio->lang_type == 1) {
              language=audio->lang_code;
              tmp[0]=language>>8;
              tmp[1]=language&0xff;
              tmp[2]=0;
            }

            audio_stream->language=language;
#ifdef USE_DVDREAD_INTERNAL
            audio_stream->id=pgc->audio_control[i].s_audio;
#else
            audio_stream->id=pgc->audio_control[i] >> 8 & 7;
#endif
            switch(audio->audio_format) {
              case 0: // ac3
                audio_stream->id+=FIRST_AC3_AID;
                break;
              case 6: // dts
                audio_stream->id+=FIRST_DTS_AID;
                break;
              case 2: // mpeg layer 1/2/3
              case 3: // mpeg2 ext
                audio_stream->id+=FIRST_MPG_AID;
                break;
              case 4: // lpcm
                audio_stream->id+=FIRST_PCM_AID;
                break;
           }

           audio_stream->type=audio->audio_format;
           // Pontscho: to my mind, tha channels:
           //  1 - stereo
           //  5 - 5.1
           audio_stream->channels=audio->channels;
           mp_msg(MSGT_OPEN,MSGL_STATUS,MSGTR_DVDaudioStreamInfo,
             d->nr_of_channels,
             dvd_audio_stream_types[ audio->audio_format ],
             dvd_audio_stream_channels[ audio->channels ],
             tmp,
             audio_stream->id
           );
           mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_ID=%d\n", audio_stream->id);
           if(language && tmp[0])
             mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AID_%d_LANG=%s\n", audio_stream->id, tmp);

           d->nr_of_channels++;
         }
      }
      mp_msg(MSGT_OPEN,MSGL_STATUS,MSGTR_DVDnumAudioChannels,d->nr_of_channels );
    }

    /**
     * Check number of subtitles and language
     */
    {
      int i;

      d->nr_of_subtitles=0;
      for(i=0;i<32;i++)
#ifdef USE_DVDREAD_INTERNAL
      if(pgc->subp_control[i].present) {
#else
      if(pgc->subp_control[i] & 0x80000000) {
#endif
        subp_attr_t * subtitle = &vts_file->vtsi_mat->vts_subp_attr[i];
        video_attr_t *video = &vts_file->vtsi_mat->vts_video_attr;
        int language = 0;
        char tmp[] = "unknown";
        stream_language_t *sub_stream = &d->subtitles[d->nr_of_subtitles];

        if(subtitle->type == 1) {
          language=subtitle->lang_code;
          tmp[0]=language>>8;
          tmp[1]=language&0xff;
          tmp[2]=0;
        }

        sub_stream->language=language;
        sub_stream->id=d->nr_of_subtitles;
        if(video->display_aspect_ratio == 0) /* 4:3 */
#ifdef USE_DVDREAD_INTERNAL
          sub_stream->id = pgc->subp_control[i].s_4p3;
#else
          sub_stream->id = pgc->subp_control[i] >> 24 & 31;
#endif
        else if(video->display_aspect_ratio == 3) /* 16:9 */
#ifdef USE_DVDREAD_INTERNAL
          sub_stream->id = pgc->subp_control[i].s_lbox;
#else
          sub_stream->id = pgc->subp_control[i] >> 8 & 31;
#endif

        mp_msg(MSGT_OPEN,MSGL_STATUS,MSGTR_DVDsubtitleLanguage, sub_stream->id, tmp);
        mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SUBTITLE_ID=%d\n", sub_stream->id);
        if(language && tmp[0])
          mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SID_%d_LANG=%s\n", sub_stream->id, tmp);
        d->nr_of_subtitles++;
      }
      mp_msg(MSGT_OPEN,MSGL_STATUS,MSGTR_DVDnumSubtitles,d->nr_of_subtitles);
    }

    /**
     * Determine which program chain we want to watch.  This is based on the
     * chapter number.
     */
    pgc_id = vts_file->vts_ptt_srpt->title[ttn].ptt[dvd_chapter].pgcn; // local
    pgn  = vts_file->vts_ptt_srpt->title[ttn].ptt[dvd_chapter].pgn;  // local
    d->cur_pgc_idx = pgc_id-1;
    d->cur_pgc = vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
    d->cur_cell = d->cur_pgc->program_map[pgn-1] - 1; // start playback here
    d->packs_left=-1;      // for Navi stuff
    d->angle_seek=0;
    /* XXX dvd_last_chapter is in the range 1..nr_of_ptts */
    if(dvd_last_chapter > 0 && dvd_last_chapter < tt_srpt->title[dvd_title].nr_of_ptts) {
      pgn=vts_file->vts_ptt_srpt->title[ttn].ptt[dvd_last_chapter].pgn;
      d->last_cell=d->cur_pgc->program_map[pgn-1] - 1;
    } else
      d->last_cell=d->cur_pgc->nr_of_cells;

    if(d->cur_pgc->cell_playback[d->cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK ) 
      d->cur_cell+=dvd_angle;
    d->cur_pack = d->cur_pgc->cell_playback[ d->cur_cell ].first_sector;
    d->cell_last_pack=d->cur_pgc->cell_playback[ d->cur_cell ].last_sector;
    mp_msg(MSGT_DVD,MSGL_V, "DVD start cell: %d  pack: 0x%X-0x%X  \n",d->cur_cell,d->cur_pack,d->cell_last_pack);

    //assign cell_times_table
    d->cell_times_table = malloc(sizeof(unsigned int) * d->cur_pgc->nr_of_cells);
    if(d->cell_times_table == NULL)
      return STREAM_UNSUPPORTED;
    for(k=0; k<d->cur_pgc->nr_of_cells; k++)
      d->cell_times_table[k] = mp_dvdtimetomsec(&d->cur_pgc->cell_playback[k].playback_time);
    list_chapters(d->cur_pgc);

    // ... (unimplemented)
    //    return NULL;
    stream->type = STREAMTYPE_DVD;
    stream->sector_size = 2048;
    stream->flags = STREAM_READ | STREAM_SEEK;
    stream->fill_buffer = fill_buffer;
    stream->seek = seek;
    stream->control = control;
    stream->close = stream_dvd_close;
    stream->start_pos = (off_t)d->cur_pack*2048;
    stream->end_pos = (off_t)(d->cur_pgc->cell_playback[d->last_cell-1].last_sector)*2048;
    *file_format = DEMUXER_TYPE_MPEG_PS;
    mp_msg(MSGT_DVD,MSGL_V,"DVD start=%d end=%d  \n",d->cur_pack,d->cur_pgc->cell_playback[d->last_cell-1].last_sector);
    stream->priv = (void*)d;
    return STREAM_OK;

fail:
      ifoClose(vmg_file);
      DVDClose(dvd);
      m_struct_free(&stream_opts, opts);
      return STREAM_UNSUPPORTED;
  }
  mp_msg(MSGT_DVD,MSGL_ERR,MSGTR_NoDVDSupport);
  m_struct_free(&stream_opts,opts);
  return STREAM_UNSUPPORTED;
}


stream_info_t stream_info_dvd = {
  "DVD stream",
  "null",
  "",
  "",
  open_s,
  { "dvd", NULL },
  &stream_opts,
  1 // Urls are an option string
};