/* $Id: dvd.c,v 1.12 2005/11/25 15:05:25 titer Exp $ This file is part of the HandBrake source code. Homepage: . It may be used under the terms of the GNU General Public License. */ #include "hb.h" #include "lang.h" #include "dvd.h" #include "dvdnav/dvdnav.h" #include "dvdread/ifo_read.h" #include "dvdread/nav_read.h" #define DVD_READ_CACHE 1 static char * hb_dvdnav_name( char * path ); static hb_dvd_t * hb_dvdnav_init( char * path ); static int hb_dvdnav_title_count( hb_dvd_t * d ); static hb_title_t * hb_dvdnav_title_scan( hb_dvd_t * d, int t ); static int hb_dvdnav_start( hb_dvd_t * d, int title, int chapter ); static void hb_dvdnav_stop( hb_dvd_t * d ); static int hb_dvdnav_seek( hb_dvd_t * d, float f ); static int hb_dvdnav_read( hb_dvd_t * d, hb_buffer_t * b ); static int hb_dvdnav_chapter( hb_dvd_t * d ); static void hb_dvdnav_close( hb_dvd_t ** _d ); static int hb_dvdnav_angle_count( hb_dvd_t * d ); static void hb_dvdnav_set_angle( hb_dvd_t * e, int angle ); hb_dvd_func_t hb_dvdnav_func = { hb_dvdnav_init, hb_dvdnav_close, hb_dvdnav_name, hb_dvdnav_title_count, hb_dvdnav_title_scan, hb_dvdnav_start, hb_dvdnav_stop, hb_dvdnav_seek, hb_dvdnav_read, hb_dvdnav_chapter, hb_dvdnav_angle_count, hb_dvdnav_set_angle }; /*********************************************************************** * Local prototypes **********************************************************************/ static int FindNextCell( pgc_t *pgc, int cell_cur ); static int dvdtime2msec( dvd_time_t * ); //static int hb_dvdnav_is_break( hb_dvdnav_t * d ); hb_dvd_func_t * hb_dvdnav_methods( void ) { return &hb_dvdnav_func; } static char * hb_dvdnav_name( char * path ) { static char name[1024]; unsigned char unused[1024]; dvd_reader_t * reader; reader = DVDOpen( path ); if( !reader ) { return NULL; } if( DVDUDFVolumeInfo( reader, name, sizeof( name ), unused, sizeof( unused ) ) ) { DVDClose( reader ); return NULL; } DVDClose( reader ); return name; } /*********************************************************************** * hb_dvdnav_reset *********************************************************************** * Once dvdnav has entered the 'stopped' state, it can not be revived * dvdnav_reset doesn't work because it doesn't remember the path * So this function re-opens dvdnav **********************************************************************/ static int hb_dvdnav_reset( hb_dvdnav_t * d ) { if ( d->dvdnav ) dvdnav_close( d->dvdnav ); /* Open device */ if( dvdnav_open(&d->dvdnav, d->path) != DVDNAV_STATUS_OK ) { /* * Not an error, may be a stream - which we'll try in a moment. */ hb_log( "dvd: not a dvd - trying as a stream/file instead" ); goto fail; } if (dvdnav_set_readahead_flag(d->dvdnav, DVD_READ_CACHE) != DVDNAV_STATUS_OK) { hb_error("Error: dvdnav_set_readahead_flag: %s\n", dvdnav_err_to_string(d->dvdnav)); goto fail; } /* ** set the PGC positioning flag to have position information ** relatively to the whole feature instead of just relatively to the ** current chapter **/ if (dvdnav_set_PGC_positioning_flag(d->dvdnav, 1) != DVDNAV_STATUS_OK) { hb_error("Error: dvdnav_set_PGC_positioning_flag: %s\n", dvdnav_err_to_string(d->dvdnav)); goto fail; } return 1; fail: if( d->dvdnav ) dvdnav_close( d->dvdnav ); return 0; } /*********************************************************************** * hb_dvdnav_init *********************************************************************** * **********************************************************************/ static hb_dvd_t * hb_dvdnav_init( char * path ) { hb_dvd_t * e; hb_dvdnav_t * d; e = calloc( sizeof( hb_dvd_t ), 1 ); d = &(e->dvdnav); /* Open device */ if( dvdnav_open(&d->dvdnav, path) != DVDNAV_STATUS_OK ) { /* * Not an error, may be a stream - which we'll try in a moment. */ hb_log( "dvd: not a dvd - trying as a stream/file instead" ); goto fail; } if (dvdnav_set_readahead_flag(d->dvdnav, DVD_READ_CACHE) != DVDNAV_STATUS_OK) { hb_error("Error: dvdnav_set_readahead_flag: %s\n", dvdnav_err_to_string(d->dvdnav)); goto fail; } /* ** set the PGC positioning flag to have position information ** relatively to the whole feature instead of just relatively to the ** current chapter **/ if (dvdnav_set_PGC_positioning_flag(d->dvdnav, 1) != DVDNAV_STATUS_OK) { hb_error("Error: dvdnav_set_PGC_positioning_flag: %s\n", dvdnav_err_to_string(d->dvdnav)); goto fail; } /* Open device */ if( !( d->reader = DVDOpen( path ) ) ) { /* * Not an error, may be a stream - which we'll try in a moment. */ hb_log( "dvd: not a dvd - trying as a stream/file instead" ); goto fail; } /* Open main IFO */ if( !( d->vmg = ifoOpen( d->reader, 0 ) ) ) { hb_error( "dvd: ifoOpen failed" ); goto fail; } d->path = strdup( path ); return e; fail: if( d->dvdnav ) dvdnav_close( d->dvdnav ); if( d->vmg ) ifoClose( d->vmg ); if( d->reader ) DVDClose( d->reader ); free( e ); return NULL; } /*********************************************************************** * hb_dvdnav_title_count **********************************************************************/ static int hb_dvdnav_title_count( hb_dvd_t * e ) { int titles = 0; hb_dvdnav_t * d = &(e->dvdnav); dvdnav_get_number_of_titles(d->dvdnav, &titles); return titles; } /*********************************************************************** * hb_dvdnav_title_scan **********************************************************************/ static hb_title_t * hb_dvdnav_title_scan( hb_dvd_t * e, int t ) { hb_dvdnav_t * d = &(e->dvdnav); hb_title_t * title; ifo_handle_t * vts = NULL; int pgc_id, pgn, i; pgc_t * pgc; int cell_cur; hb_chapter_t * chapter; int c; uint64_t duration; float duration_correction; const char * name; hb_log( "scan: scanning title %d", t ); title = hb_title_init( d->path, t ); if (dvdnav_get_title_string(d->dvdnav, &name) == DVDNAV_STATUS_OK) { strncpy( title->name, name, sizeof( title->name ) ); } else { char * p_cur, * p_last = d->path; for( p_cur = d->path; *p_cur; p_cur++ ) { if( p_cur[0] == '/' && p_cur[1] ) { p_last = &p_cur[1]; } } snprintf( title->name, sizeof( title->name ), "%s", p_last ); } /* VTS which our title is in */ title->vts = d->vmg->tt_srpt->title[t-1].title_set_nr; if ( !title->vts ) { /* A VTS of 0 means the title wasn't found in the title set */ hb_error("Invalid VTS (title set) number: %i", title->vts); goto fail; } hb_log( "scan: opening IFO for VTS %d", title->vts ); if( !( vts = ifoOpen( d->reader, title->vts ) ) ) { hb_error( "scan: ifoOpen failed" ); goto fail; } /* ignore titles with bogus cell addresses so we don't abort later ** in libdvdread. */ for ( i = 0; i < vts->vts_c_adt->nr_of_vobs; ++i) { if( (vts->vts_c_adt->cell_adr_table[i].start_sector & 0xffffff ) == 0xffffff ) { hb_error( "scan: cell_adr_table[%d].start_sector invalid (0x%x) " "- skipping title", i, vts->vts_c_adt->cell_adr_table[i].start_sector ); goto fail; } if( (vts->vts_c_adt->cell_adr_table[i].last_sector & 0xffffff ) == 0xffffff ) { hb_error( "scan: cell_adr_table[%d].last_sector invalid (0x%x) " "- skipping title", i, vts->vts_c_adt->cell_adr_table[i].last_sector ); goto fail; } if( vts->vts_c_adt->cell_adr_table[i].start_sector >= vts->vts_c_adt->cell_adr_table[i].last_sector ) { hb_error( "scan: cell_adr_table[%d].start_sector (0x%x) " "is not before last_sector (0x%x) - skipping title", i, vts->vts_c_adt->cell_adr_table[i].start_sector, vts->vts_c_adt->cell_adr_table[i].last_sector ); goto fail; } } if( global_verbosity_level == 3 ) { ifo_print( d->reader, title->vts ); } /* Position of the title in the VTS */ title->ttn = d->vmg->tt_srpt->title[t-1].vts_ttn; if ( title->ttn < 1 || title->ttn > vts->vts_ptt_srpt->nr_of_srpts ) { hb_error( "invalid VTS PTT offset %d for title %d, skipping", title->ttn, t ); goto fail; } /* Get pgc */ pgc_id = vts->vts_ptt_srpt->title[title->ttn-1].ptt[0].pgcn; if ( pgc_id < 1 || pgc_id > vts->vts_pgcit->nr_of_pgci_srp ) { hb_error( "invalid PGC ID %d for title %d, skipping", pgc_id, t ); goto fail; } pgn = vts->vts_ptt_srpt->title[title->ttn-1].ptt[0].pgn; pgc = vts->vts_pgcit->pgci_srp[pgc_id-1].pgc; hb_log("pgc_id: %d, pgn: %d: pgc: 0x%x", pgc_id, pgn, pgc); if( !pgc ) { hb_error( "scan: pgc not valid, skipping" ); goto fail; } if( pgn <= 0 || pgn > 99 ) { hb_error( "scan: pgn %d not valid, skipping", pgn ); goto fail; } /* Start cell */ title->cell_start = pgc->program_map[pgn-1] - 1; title->block_start = pgc->cell_playback[title->cell_start].first_sector; /* End cell */ title->cell_end = pgc->nr_of_cells - 1; title->block_end = pgc->cell_playback[title->cell_end].last_sector; /* Block count */ title->block_count = 0; cell_cur = title->cell_start; while( cell_cur <= title->cell_end ) { #define cp pgc->cell_playback[cell_cur] title->block_count += cp.last_sector + 1 - cp.first_sector; #undef cp cell_cur = FindNextCell( pgc, cell_cur ); } hb_log( "scan: vts=%d, ttn=%d, cells=%d->%d, blocks=%d->%d, " "%d blocks", title->vts, title->ttn, title->cell_start, title->cell_end, title->block_start, title->block_end, title->block_count ); /* Get duration */ title->duration = 90LL * dvdtime2msec( &pgc->playback_time ); title->hours = title->duration / 90000 / 3600; title->minutes = ( ( title->duration / 90000 ) % 3600 ) / 60; title->seconds = ( title->duration / 90000 ) % 60; hb_log( "scan: duration is %02d:%02d:%02d (%lld ms)", title->hours, title->minutes, title->seconds, title->duration / 90 ); /* ignore titles under 10 seconds because they're often stills or * clips with no audio & our preview code doesn't currently handle * either of these. */ if( title->duration < 900000LL ) { hb_log( "scan: ignoring title (too short)" ); goto fail; } /* Detect languages */ for( i = 0; i < vts->vtsi_mat->nr_of_vts_audio_streams; i++ ) { hb_audio_t * audio, * audio_tmp; int audio_format, lang_code, audio_control, position, j; iso639_lang_t * lang; int lang_extension = 0; hb_log( "scan: checking audio %d", i + 1 ); audio = calloc( sizeof( hb_audio_t ), 1 ); audio_format = vts->vtsi_mat->vts_audio_attr[i].audio_format; lang_code = vts->vtsi_mat->vts_audio_attr[i].lang_code; lang_extension = vts->vtsi_mat->vts_audio_attr[i].code_extension; audio_control = vts->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i]; if( !( audio_control & 0x8000 ) ) { hb_log( "scan: audio channel is not active" ); free( audio ); continue; } position = ( audio_control & 0x7F00 ) >> 8; switch( audio_format ) { case 0x00: audio->id = ( ( 0x80 + position ) << 8 ) | 0xbd; audio->config.in.codec = HB_ACODEC_AC3; break; case 0x02: case 0x03: audio->id = 0xc0 + position; audio->config.in.codec = HB_ACODEC_MPGA; break; case 0x04: audio->id = ( ( 0xa0 + position ) << 8 ) | 0xbd; audio->config.in.codec = HB_ACODEC_LPCM; break; case 0x06: audio->id = ( ( 0x88 + position ) << 8 ) | 0xbd; audio->config.in.codec = HB_ACODEC_DCA; break; default: audio->id = 0; audio->config.in.codec = 0; hb_log( "scan: unknown audio codec (%x)", audio_format ); break; } if( !audio->id ) { continue; } /* Check for duplicate tracks */ audio_tmp = NULL; for( j = 0; j < hb_list_count( title->list_audio ); j++ ) { audio_tmp = hb_list_item( title->list_audio, j ); if( audio->id == audio_tmp->id ) { break; } audio_tmp = NULL; } if( audio_tmp ) { hb_log( "scan: duplicate audio track" ); free( audio ); continue; } audio->config.lang.type = lang_extension; lang = lang_for_code( vts->vtsi_mat->vts_audio_attr[i].lang_code ); snprintf( audio->config.lang.description, sizeof( audio->config.lang.description ), "%s (%s)", strlen(lang->native_name) ? lang->native_name : lang->eng_name, audio->config.in.codec == HB_ACODEC_AC3 ? "AC3" : ( audio->config.in.codec == HB_ACODEC_DCA ? "DTS" : ( audio->config.in.codec == HB_ACODEC_MPGA ? "MPEG" : "LPCM" ) ) ); snprintf( audio->config.lang.simple, sizeof( audio->config.lang.simple ), "%s", strlen(lang->native_name) ? lang->native_name : lang->eng_name ); snprintf( audio->config.lang.iso639_2, sizeof( audio->config.lang.iso639_2 ), "%s", lang->iso639_2); switch( lang_extension ) { case 0: case 1: break; case 2: strcat( audio->config.lang.description, " (Visually Impaired)" ); break; case 3: strcat( audio->config.lang.description, " (Director's Commentary 1)" ); break; case 4: strcat( audio->config.lang.description, " (Director's Commentary 2)" ); break; default: break; } hb_log( "scan: id=%x, lang=%s, 3cc=%s ext=%i", audio->id, audio->config.lang.description, audio->config.lang.iso639_2, lang_extension ); audio->config.in.track = i; hb_list_add( title->list_audio, audio ); } if( !hb_list_count( title->list_audio ) ) { hb_log( "scan: ignoring title (no audio track)" ); goto fail; } memcpy( title->palette, vts->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette, 16 * sizeof( uint32_t ) ); /* Check for subtitles */ for( i = 0; i < vts->vtsi_mat->nr_of_vts_subp_streams; i++ ) { hb_subtitle_t * subtitle; int spu_control; int position; iso639_lang_t * lang; int lang_extension = 0; hb_log( "scan: checking subtitle %d", i + 1 ); spu_control = vts->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i]; if( !( spu_control & 0x80000000 ) ) { hb_log( "scan: subtitle channel is not active" ); continue; } if( vts->vtsi_mat->vts_video_attr.display_aspect_ratio ) { switch( vts->vtsi_mat->vts_video_attr.permitted_df ) { case 1: position = spu_control & 0xFF; break; case 2: position = ( spu_control >> 8 ) & 0xFF; break; default: position = ( spu_control >> 16 ) & 0xFF; } } else { position = ( spu_control >> 24 ) & 0x7F; } lang_extension = vts->vtsi_mat->vts_subp_attr[i].code_extension; lang = lang_for_code( vts->vtsi_mat->vts_subp_attr[i].lang_code ); subtitle = calloc( sizeof( hb_subtitle_t ), 1 ); subtitle->id = ( ( 0x20 + position ) << 8 ) | 0xbd; snprintf( subtitle->lang, sizeof( subtitle->lang ), "%s", strlen(lang->native_name) ? lang->native_name : lang->eng_name); snprintf( subtitle->iso639_2, sizeof( subtitle->iso639_2 ), "%s", lang->iso639_2); subtitle->type = lang_extension; switch( lang_extension ) { case 0: break; case 1: break; case 2: strcat( subtitle->lang, " (Caption with bigger size character)"); break; case 3: strcat( subtitle->lang, " (Caption for Children)"); break; case 4: break; case 5: strcat( subtitle->lang, " (Closed Caption)"); break; case 6: strcat( subtitle->lang, " (Closed Caption with bigger size character)"); break; case 7: strcat( subtitle->lang, " (Closed Caption for Children)"); break; case 8: break; case 9: strcat( subtitle->lang, " (Forced Caption)"); break; case 10: break; case 11: break; case 12: break; case 13: strcat( subtitle->lang, " (Director's Commentary)"); break; case 14: strcat( subtitle->lang, " (Director's Commentary with bigger size character)"); break; case 15: strcat( subtitle->lang, " (Director's Commentary for Children)"); default: break; } hb_log( "scan: id=%x, lang=%s, 3cc=%s", subtitle->id, subtitle->lang, subtitle->iso639_2 ); hb_list_add( title->list_subtitle, subtitle ); } /* Chapters */ hb_log( "scan: title %d has %d chapters", t, vts->vts_ptt_srpt->title[title->ttn-1].nr_of_ptts ); for( i = 0, c = 1; i < vts->vts_ptt_srpt->title[title->ttn-1].nr_of_ptts; i++ ) { int pgc_id_next, pgn_next; pgc_t * pgc_next; chapter = calloc( sizeof( hb_chapter_t ), 1 ); /* remember the on-disc chapter number */ chapter->index = i + 1; pgc_id = vts->vts_ptt_srpt->title[title->ttn-1].ptt[i].pgcn; pgn = vts->vts_ptt_srpt->title[title->ttn-1].ptt[i].pgn; pgc = vts->vts_pgcit->pgci_srp[pgc_id-1].pgc; /* Start cell */ chapter->cell_start = pgc->program_map[pgn-1] - 1; chapter->block_start = pgc->cell_playback[chapter->cell_start].first_sector; /* End cell */ if( i != vts->vts_ptt_srpt->title[title->ttn-1].nr_of_ptts - 1 ) { /* The cell before the starting cell of the next chapter, or... */ pgc_id_next = vts->vts_ptt_srpt->title[title->ttn-1].ptt[i+1].pgcn; pgn_next = vts->vts_ptt_srpt->title[title->ttn-1].ptt[i+1].pgn; pgc_next = vts->vts_pgcit->pgci_srp[pgc_id_next-1].pgc; chapter->cell_end = pgc_next->program_map[pgn_next-1] - 2; if( chapter->cell_end < 0 ) { /* Huh? */ free( chapter ); continue; } } else { /* ... the last cell of the title */ chapter->cell_end = title->cell_end; } chapter->block_end = pgc->cell_playback[chapter->cell_end].last_sector; /* Block count, duration */ pgc_id = vts->vts_ptt_srpt->title[title->ttn-1].ptt[0].pgcn; pgn = vts->vts_ptt_srpt->title[title->ttn-1].ptt[0].pgn; pgc = vts->vts_pgcit->pgci_srp[pgc_id-1].pgc; chapter->block_count = 0; chapter->duration = 0; cell_cur = chapter->cell_start; while( cell_cur <= chapter->cell_end ) { #define cp pgc->cell_playback[cell_cur] chapter->block_count += cp.last_sector + 1 - cp.first_sector; chapter->duration += 90LL * dvdtime2msec( &cp.playback_time ); #undef cp cell_cur = FindNextCell( pgc, cell_cur ); } hb_list_add( title->list_chapter, chapter ); c++; } /* The durations we get for chapters aren't precise. Scale them so the total matches the title duration */ duration = 0; for( i = 0; i < hb_list_count( title->list_chapter ); i++ ) { chapter = hb_list_item( title->list_chapter, i ); duration += chapter->duration; } duration_correction = (float) title->duration / (float) duration; for( i = 0; i < hb_list_count( title->list_chapter ); i++ ) { int seconds; chapter = hb_list_item( title->list_chapter, i ); chapter->duration = duration_correction * chapter->duration; seconds = ( chapter->duration + 45000 ) / 90000; chapter->hours = seconds / 3600; chapter->minutes = ( seconds % 3600 ) / 60; chapter->seconds = seconds % 60; hb_log( "scan: chap %d c=%d->%d, b=%d->%d (%d), %lld ms", chapter->index, chapter->cell_start, chapter->cell_end, chapter->block_start, chapter->block_end, chapter->block_count, chapter->duration / 90 ); } /* Get aspect. We don't get width/height/rate infos here as they tend to be wrong */ switch( vts->vtsi_mat->vts_video_attr.display_aspect_ratio ) { case 0: title->container_aspect = 4. / 3.; break; case 3: title->container_aspect = 16. / 9.; break; default: hb_log( "scan: unknown aspect" ); goto fail; } hb_log( "scan: aspect = %g", title->aspect ); /* This title is ok so far */ goto cleanup; fail: hb_list_close( &title->list_audio ); free( title ); title = NULL; cleanup: if( vts ) ifoClose( vts ); return title; } /*********************************************************************** * hb_dvdnav_start *********************************************************************** * Title and chapter start at 1 **********************************************************************/ static int hb_dvdnav_start( hb_dvd_t * e, int title, int chapter ) { hb_dvdnav_t * d = &(e->dvdnav); ifo_handle_t *ifo; int ii; int vts, ttn, pgc_id, pgn; pgc_t *pgc; int cell_start, cell_end, title_start, title_end; vts = d->vmg->tt_srpt->title[title-1].title_set_nr; ttn = d->vmg->tt_srpt->title[title-1].vts_ttn; if( !( ifo = ifoOpen( d->reader, vts ) ) ) { hb_error( "dvd: ifoOpen failed for VTS %d", vts ); return 0; } /* Get title first and last blocks */ pgc_id = ifo->vts_ptt_srpt->title[ttn-1].ptt[0].pgcn; pgn = ifo->vts_ptt_srpt->title[ttn-1].ptt[0].pgn; pgc = ifo->vts_pgcit->pgci_srp[pgc_id-1].pgc; cell_start = pgc->program_map[pgn - 1] - 1; cell_end = pgc->nr_of_cells - 1; title_start = pgc->cell_playback[cell_start].first_sector; title_end = pgc->cell_playback[cell_end].last_sector; /* Block count */ d->title_block_count = 0; for( ii = cell_start; ii <= cell_end; ii++ ) { d->title_block_count += pgc->cell_playback[ii].last_sector + 1 - pgc->cell_playback[ii].first_sector; } ifoClose(ifo); if ( d->stopped && !hb_dvdnav_reset(d) ) { return 0; } if ( dvdnav_part_play(d->dvdnav, title, chapter) != DVDNAV_STATUS_OK ) { hb_error( "dvd: dvdnav_title_play failed - %s", dvdnav_err_to_string(d->dvdnav) ); return 0; } d->title = title; d->stopped = 0; return 1; } /*********************************************************************** * hb_dvdnav_stop *********************************************************************** * **********************************************************************/ static void hb_dvdnav_stop( hb_dvd_t * e ) { hb_dvdnav_t * d = &(e->dvdnav); } /*********************************************************************** * hb_dvdnav_seek *********************************************************************** * **********************************************************************/ static int hb_dvdnav_seek( hb_dvd_t * e, float f ) { hb_dvdnav_t * d = &(e->dvdnav); uint64_t sector; int result, event, len; uint8_t buf[HB_DVD_READ_BUFFER_SIZE]; int done = 0, ii; if (d->stopped) { return 0; } // dvdnav will not let you seek or poll current position // till it reaches a certain point in parsing. so we // have to get blocks until we reach a cell // Put an arbitrary limit of 100 blocks on how long we search for (ii = 0; ii < 100 && !done; ii++) { result = dvdnav_get_next_block( d->dvdnav, buf, &event, &len ); if ( result == DVDNAV_STATUS_ERR ) { hb_log("dvdnav: Read Error, %s", dvdnav_err_to_string(d->dvdnav)); return 0; } switch ( event ) { case DVDNAV_BLOCK_OK: case DVDNAV_CELL_CHANGE: done = 1; case DVDNAV_STILL_FRAME: dvdnav_still_skip( d->dvdnav ); break; case DVDNAV_WAIT: dvdnav_wait_skip( d->dvdnav ); break; case DVDNAV_STOP: d->stopped = 1; return 0; case DVDNAV_HOP_CHANNEL: case DVDNAV_NAV_PACKET: case DVDNAV_VTS_CHANGE: case DVDNAV_HIGHLIGHT: case DVDNAV_AUDIO_STREAM_CHANGE: case DVDNAV_SPU_STREAM_CHANGE: case DVDNAV_SPU_CLUT_CHANGE: case DVDNAV_NOP: default: break; } } while (!(event == DVDNAV_CELL_CHANGE || event == DVDNAV_BLOCK_OK)); sector = f * d->title_block_count; if (dvdnav_sector_search(d->dvdnav, sector, SEEK_SET) != DVDNAV_STATUS_OK) { hb_error( "dvd: dvdnav_sector_search failed - %s", dvdnav_err_to_string(d->dvdnav) ); return 0; } return 1; } /*********************************************************************** * hb_dvdnav_read *********************************************************************** * **********************************************************************/ static int hb_dvdnav_read( hb_dvd_t * e, hb_buffer_t * b ) { hb_dvdnav_t * d = &(e->dvdnav); int result, event, len; int chapter = 0; while ( 1 ) { if (d->stopped) { return 0; } result = dvdnav_get_next_block( d->dvdnav, b->data, &event, &len ); if ( result == DVDNAV_STATUS_ERR ) { hb_log("dvdnav: Read Error, %s", dvdnav_err_to_string(d->dvdnav)); return 0; } switch ( event ) { case DVDNAV_BLOCK_OK: // We have received a regular block of the currently playing // MPEG stream. // The muxers expect to only get chapter 2 and above // They write chapter 1 when chapter 2 is detected. if (chapter > 1) b->new_chap = chapter; chapter = 0; return 1; case DVDNAV_NOP: /* * Nothing to do here. */ break; case DVDNAV_STILL_FRAME: /* * We have reached a still frame. A real player application * would wait the amount of time specified by the still's * length while still handling user input to make menus and * other interactive stills work. A length of 0xff means an * indefinite still which has to be skipped indirectly by some * user interaction. */ dvdnav_still_skip( d->dvdnav ); break; case DVDNAV_WAIT: /* * We have reached a point in DVD playback, where timing is * critical. Player application with internal fifos can * introduce state inconsistencies, because libdvdnav is * always the fifo's length ahead in the stream compared to * what the application sees. Such applications should wait * until their fifos are empty when they receive this type of * event. */ dvdnav_wait_skip( d->dvdnav ); break; case DVDNAV_SPU_CLUT_CHANGE: /* * Player applications should pass the new colour lookup table * to their SPU decoder */ break; case DVDNAV_SPU_STREAM_CHANGE: /* * Player applications should inform their SPU decoder to * switch channels */ break; case DVDNAV_AUDIO_STREAM_CHANGE: /* * Player applications should inform their audio decoder to * switch channels */ break; case DVDNAV_HIGHLIGHT: /* * Player applications should inform their overlay engine to * highlight the given button */ break; case DVDNAV_VTS_CHANGE: /* * Some status information like video aspect and video scale * permissions do not change inside a VTS. Therefore this * event can be used to query such information only when * necessary and update the decoding/displaying accordingly. */ break; case DVDNAV_CELL_CHANGE: /* * Some status information like the current Title and Part * numbers do not change inside a cell. Therefore this event * can be used to query such information only when necessary * and update the decoding/displaying accordingly. */ { int tt = 0, ptt = 0; dvdnav_current_title_info(d->dvdnav, &tt, &ptt); if (tt != d->title) { // Transition to another title signals that we are done. return 0; } if (ptt > d->chapter) chapter = d->chapter = ptt; } break; case DVDNAV_NAV_PACKET: /* * A NAV packet provides PTS discontinuity information, angle * linking information and button definitions for DVD menus. * Angles are handled completely inside libdvdnav. For the * menus to work, the NAV packet information has to be passed * to the overlay engine of the player so that it knows the * dimensions of the button areas. */ // mpegdemux expects to get these. I don't think it does // anything useful with them however. // The muxers expect to only get chapter 2 and above // They write chapter 1 when chapter 2 is detected. if (chapter > 1) b->new_chap = chapter; chapter = 0; return 1; break; case DVDNAV_HOP_CHANNEL: /* * This event is issued whenever a non-seamless operation has * been executed. Applications with fifos should drop the * fifos content to speed up responsiveness. */ break; case DVDNAV_STOP: /* * Playback should end here. */ d->stopped = 1; return 0; default: break; } } return 0; } /*********************************************************************** * hb_dvdnav_chapter *********************************************************************** * Returns in which chapter the next block to be read is. * Chapter numbers start at 1. **********************************************************************/ static int hb_dvdnav_chapter( hb_dvd_t * e ) { hb_dvdnav_t * d = &(e->dvdnav); int32_t t, c; if (dvdnav_current_title_info(d->dvdnav, &t, &c) != DVDNAV_STATUS_OK) { return -1; } return c; } /*********************************************************************** * hb_dvdnav_close *********************************************************************** * Closes and frees everything **********************************************************************/ static void hb_dvdnav_close( hb_dvd_t ** _d ) { hb_dvdnav_t * d = &((*_d)->dvdnav); if( d->dvdnav ) dvdnav_close( d->dvdnav ); if( d->vmg ) ifoClose( d->vmg ); if( d->reader ) DVDClose( d->reader ); free( d ); *_d = NULL; } /*********************************************************************** * hb_dvdnav_angle_count *********************************************************************** * Returns the number of angles supported. **********************************************************************/ static int hb_dvdnav_angle_count( hb_dvd_t * e ) { hb_dvdnav_t * d = &(e->dvdnav); int current, angle_count; if (dvdnav_get_angle_info( d->dvdnav, ¤t, &angle_count) != DVDNAV_STATUS_OK) { hb_log("dvdnav_get_angle_info %s", dvdnav_err_to_string(d->dvdnav)); angle_count = 1; } return angle_count; } /*********************************************************************** * hb_dvdnav_set_angle *********************************************************************** * Sets the angle to read **********************************************************************/ static void hb_dvdnav_set_angle( hb_dvd_t * e, int angle ) { hb_dvdnav_t * d = &(e->dvdnav); if (dvdnav_angle_change( d->dvdnav, angle) != DVDNAV_STATUS_OK) { hb_log("dvdnav_angle_change %s", dvdnav_err_to_string(d->dvdnav)); } } /*********************************************************************** * FindNextCell *********************************************************************** * Assumes pgc and cell_cur are correctly set, and sets cell_next to the * cell to be read when we will be done with cell_cur. **********************************************************************/ static int FindNextCell( pgc_t *pgc, int cell_cur ) { int i = 0; int cell_next; if( pgc->cell_playback[cell_cur].block_type == BLOCK_TYPE_ANGLE_BLOCK ) { while( pgc->cell_playback[cell_cur+i].block_mode != BLOCK_MODE_LAST_CELL ) { i++; } cell_next = cell_cur + i + 1; hb_log( "dvd: Skipping multi-angle cells %d-%d", cell_cur, cell_next - 1 ); } else { cell_next = cell_cur + 1; } return cell_next; } /*********************************************************************** * dvdtime2msec *********************************************************************** * From lsdvd **********************************************************************/ static int dvdtime2msec(dvd_time_t * dt) { double frames_per_s[4] = {-1.0, 25.00, -1.0, 29.97}; double fps = frames_per_s[(dt->frame_u & 0xc0) >> 6]; long ms; ms = (((dt->hour & 0xf0) >> 3) * 5 + (dt->hour & 0x0f)) * 3600000; ms += (((dt->minute & 0xf0) >> 3) * 5 + (dt->minute & 0x0f)) * 60000; ms += (((dt->second & 0xf0) >> 3) * 5 + (dt->second & 0x0f)) * 1000; if( fps > 0 ) { ms += ((dt->frame_u & 0x30) >> 3) * 5 + (dt->frame_u & 0x0f) * 1000.0 / fps; } return ms; }