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-rw-r--r--libmediafork/dvd.c805
1 files changed, 805 insertions, 0 deletions
diff --git a/libmediafork/dvd.c b/libmediafork/dvd.c
new file mode 100644
index 000000000..04695a3e2
--- /dev/null
+++ b/libmediafork/dvd.c
@@ -0,0 +1,805 @@
+/* $Id: dvd.c,v 1.12 2005/11/25 15:05:25 titer Exp $
+
+ This file is part of the HandBrake source code.
+ Homepage: <http://handbrake.m0k.org/>.
+ It may be used under the terms of the GNU General Public License. */
+
+#include "mediafork.h"
+#include "lang.h"
+
+#include "dvdread/ifo_read.h"
+#include "dvdread/nav_read.h"
+
+struct hb_dvd_s
+{
+ char * path;
+
+ dvd_reader_t * reader;
+ ifo_handle_t * vmg;
+
+ int vts;
+ int ttn;
+ ifo_handle_t * ifo;
+ dvd_file_t * file;
+
+ pgc_t * pgc;
+ int cell_start;
+ int cell_end;
+ int title_start;
+ int title_end;
+ int title_block_count;
+ int cell_cur;
+ int cell_next;
+ int block;
+ int pack_len;
+ int next_vobu;
+};
+
+/***********************************************************************
+ * Local prototypes
+ **********************************************************************/
+static void FindNextCell( hb_dvd_t * );
+static int dvdtime2msec( dvd_time_t * );
+
+char * hb_dvd_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_dvd_init
+ ***********************************************************************
+ *
+ **********************************************************************/
+hb_dvd_t * hb_dvd_init( char * path )
+{
+ hb_dvd_t * d;
+
+ d = calloc( sizeof( hb_dvd_t ), 1 );
+
+ /* Open device */
+ if( !( d->reader = DVDOpen( path ) ) )
+ {
+ hb_log( "dvd: DVDOpen failed (%s)", path );
+ goto fail;
+ }
+
+ /* Open main IFO */
+ if( !( d->vmg = ifoOpen( d->reader, 0 ) ) )
+ {
+ hb_log( "dvd: ifoOpen failed" );
+ goto fail;
+ }
+
+ d->path = strdup( path );
+
+ return d;
+
+fail:
+ if( d->vmg ) ifoClose( d->vmg );
+ if( d->reader ) DVDClose( d->reader );
+ free( d );
+ return NULL;
+}
+
+/***********************************************************************
+ * hb_dvd_title_count
+ **********************************************************************/
+int hb_dvd_title_count( hb_dvd_t * d )
+{
+ return d->vmg->tt_srpt->nr_of_srpts;
+}
+
+/***********************************************************************
+ * hb_dvd_title_scan
+ **********************************************************************/
+hb_title_t * hb_dvd_title_scan( hb_dvd_t * d, int t )
+{
+
+ hb_title_t * title;
+ ifo_handle_t * vts = NULL;
+ int pgc_id, pgn, i;
+ hb_chapter_t * chapter, * chapter_old;
+ int c;
+ uint64_t duration;
+ float duration_correction;
+ unsigned char unused[1024];
+
+ hb_log( "scan: scanning title %d", t );
+
+ title = hb_title_init( d->path, t );
+ if( DVDUDFVolumeInfo( d->reader, title->name, sizeof( title->name ),
+ unused, sizeof( unused ) ) )
+ {
+ 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;
+
+ hb_log( "scan: opening IFO for VTS %d", title->vts );
+ if( !( vts = ifoOpen( d->reader, title->vts ) ) )
+ {
+ hb_log( "scan: ifoOpen failed" );
+ goto fail;
+ }
+
+ /* Position of the title in the VTS */
+ title->ttn = d->vmg->tt_srpt->title[t-1].vts_ttn;
+
+ /* Get pgc */
+ 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;
+ d->pgc = vts->vts_pgcit->pgci_srp[pgc_id-1].pgc;
+
+ /* Start cell */
+ title->cell_start = d->pgc->program_map[pgn-1] - 1;
+ title->block_start = d->pgc->cell_playback[title->cell_start].first_sector;
+
+ /* End cell */
+ title->cell_end = d->pgc->nr_of_cells - 1;
+ title->block_end = d->pgc->cell_playback[title->cell_end].last_sector;
+
+ /* Block count */
+ title->block_count = 0;
+ d->cell_cur = title->cell_start;
+ while( d->cell_cur <= title->cell_end )
+ {
+#define cp d->pgc->cell_playback[d->cell_cur]
+ title->block_count += cp.last_sector + 1 - cp.first_sector;
+#undef cp
+ FindNextCell( d );
+ d->cell_cur = d->cell_next;
+ }
+
+ 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 );
+
+ if( title->block_count < 2048 )
+ {
+ hb_log( "scan: title too short (%d blocks), ignoring",
+ title->block_count );
+ goto fail;
+ }
+
+
+ /* Get duration */
+ title->duration = 90LL * dvdtime2msec( &d->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 );
+
+ /* Discard titles under 10 seconds */
+ if( !( title->hours | title->minutes ) && title->seconds < 10 )
+ {
+ 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;
+
+ 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;
+ 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->codec = HB_ACODEC_AC3;
+ break;
+
+ case 0x02:
+ case 0x03:
+ audio->id = 0xc0 + position;
+ audio->codec = HB_ACODEC_MPGA;
+ break;
+
+ case 0x04:
+ audio->id = ( ( 0xa0 + position ) << 8 ) | 0xbd;
+ audio->codec = HB_ACODEC_LPCM;
+ break;
+
+ default:
+ audio->id = 0;
+ audio->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;
+ }
+
+ snprintf( audio->lang, sizeof( audio->lang ), "%s (%s)",
+ lang_for_code( vts->vtsi_mat->vts_audio_attr[i].lang_code ),
+ audio->codec == HB_ACODEC_AC3 ? "AC3" : ( audio->codec ==
+ HB_ACODEC_MPGA ? "MPEG" : "LPCM" ) );
+ snprintf( audio->lang_simple, sizeof( audio->lang_simple ), "%s",
+ lang_for_code( vts->vtsi_mat->vts_audio_attr[i].lang_code ) );
+
+ hb_log( "scan: id=%x, lang=%s", audio->id,
+ audio->lang );
+
+ 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;
+
+ 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;
+ }
+
+ subtitle = calloc( sizeof( hb_subtitle_t ), 1 );
+ subtitle->id = ( ( 0x20 + position ) << 8 ) | 0xbd;
+ snprintf( subtitle->lang, sizeof( subtitle->lang ), "%s",
+ lang_for_code( vts->vtsi_mat->vts_subp_attr[i].lang_code ) );
+
+ hb_log( "scan: id=%x, lang=%s", subtitle->id,
+ subtitle->lang );
+
+ 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 );
+ chapter->index = c;
+
+ 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;
+ d->pgc = vts->vts_pgcit->pgci_srp[pgc_id-1].pgc;
+
+ /* Start cell */
+ chapter->cell_start = d->pgc->program_map[pgn-1] - 1;
+ chapter->block_start =
+ d->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 =
+ d->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;
+ d->pgc = vts->vts_pgcit->pgci_srp[pgc_id-1].pgc;
+ chapter->block_count = 0;
+ chapter->duration = 0;
+
+ d->cell_cur = chapter->cell_start;
+ while( d->cell_cur <= chapter->cell_end )
+ {
+#define cp d->pgc->cell_playback[d->cell_cur]
+ chapter->block_count += cp.last_sector + 1 - cp.first_sector;
+ chapter->duration += 90LL * dvdtime2msec( &cp.playback_time );
+#undef cp
+ FindNextCell( d );
+ d->cell_cur = d->cell_next;
+ }
+
+ if( chapter->block_count < 2048 && chapter->index > 1 )
+ {
+ hb_log( "scan: chapter %d too short (%d blocks, "
+ "cells=%d->%d), merging", chapter->index,
+ chapter->block_count, chapter->cell_start,
+ chapter->cell_end );
+ chapter_old = hb_list_item( title->list_chapter,
+ chapter->index - 2 );
+ chapter_old->cell_end = chapter->cell_end;
+ chapter_old->block_end = chapter->block_end;
+ chapter_old->block_count += chapter->block_count;
+ free( chapter );
+ chapter = chapter_old;
+ }
+ else
+ {
+ 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->aspect = HB_ASPECT_BASE * 4 / 3;
+ break;
+ case 3:
+ title->aspect = HB_ASPECT_BASE * 16 / 9;
+ break;
+ default:
+ hb_log( "scan: unknown aspect" );
+ goto fail;
+ }
+
+ hb_log( "scan: aspect = %d", 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_dvd_start
+ ***********************************************************************
+ * Title and chapter start at 1
+ **********************************************************************/
+int hb_dvd_start( hb_dvd_t * d, int title, int chapter )
+{
+ int pgc_id, pgn;
+ int i;
+
+ /* Open the IFO and the VOBs for this title */
+ d->vts = d->vmg->tt_srpt->title[title-1].title_set_nr;
+ d->ttn = d->vmg->tt_srpt->title[title-1].vts_ttn;
+ if( !( d->ifo = ifoOpen( d->reader, d->vts ) ) )
+ {
+ hb_log( "dvd: ifoOpen failed for VTS %d", d->vts );
+ return 0;
+ }
+ if( !( d->file = DVDOpenFile( d->reader, d->vts,
+ DVD_READ_TITLE_VOBS ) ) )
+ {
+ hb_log( "dvd: DVDOpenFile failed for VTS %d", d->vts );
+ return 0;
+ }
+
+ /* Get title first and last blocks */
+ pgc_id = d->ifo->vts_ptt_srpt->title[d->ttn-1].ptt[0].pgcn;
+ pgn = d->ifo->vts_ptt_srpt->title[d->ttn-1].ptt[0].pgn;
+ d->pgc = d->ifo->vts_pgcit->pgci_srp[pgc_id-1].pgc;
+ d->cell_start = d->pgc->program_map[pgn - 1] - 1;
+ d->cell_end = d->pgc->nr_of_cells - 1;
+ d->title_start = d->pgc->cell_playback[d->cell_start].first_sector;
+ d->title_end = d->pgc->cell_playback[d->cell_end].last_sector;
+
+ /* Block count */
+ d->title_block_count = 0;
+ for( i = d->cell_start; i <= d->cell_end; i++ )
+ {
+ d->title_block_count += d->pgc->cell_playback[i].last_sector + 1 -
+ d->pgc->cell_playback[i].first_sector;
+ }
+
+ /* Get pgc for the current chapter */
+ pgc_id = d->ifo->vts_ptt_srpt->title[d->ttn-1].ptt[chapter-1].pgcn;
+ pgn = d->ifo->vts_ptt_srpt->title[d->ttn-1].ptt[chapter-1].pgn;
+ d->pgc = d->ifo->vts_pgcit->pgci_srp[pgc_id-1].pgc;
+
+ /* Get the two first cells */
+ d->cell_cur = d->pgc->program_map[pgn-1] - 1;
+ FindNextCell( d );
+
+ d->block = d->pgc->cell_playback[d->cell_cur].first_sector;
+ d->next_vobu = d->block;
+ d->pack_len = 0;
+
+ return 1;
+}
+
+/***********************************************************************
+ * hb_dvd_stop
+ ***********************************************************************
+ *
+ **********************************************************************/
+void hb_dvd_stop( hb_dvd_t * d )
+{
+ if( d->ifo )
+ {
+ ifoClose( d->ifo );
+ d->ifo = NULL;
+ }
+ if( d->file )
+ {
+ DVDCloseFile( d->file );
+ d->file = NULL;
+ }
+}
+
+/***********************************************************************
+ * hb_dvd_seek
+ ***********************************************************************
+ *
+ **********************************************************************/
+int hb_dvd_seek( hb_dvd_t * d, float f )
+{
+ int count, sizeCell;
+ int i;
+
+ count = f * d->title_block_count;
+
+ for( i = d->cell_start; i <= d->cell_end; i++ )
+ {
+ sizeCell = d->pgc->cell_playback[i].last_sector + 1 -
+ d->pgc->cell_playback[i].first_sector;
+
+ if( count < sizeCell )
+ {
+ d->cell_cur = i;
+ FindNextCell( d );
+
+ /* Now let hb_dvd_read find the next VOBU */
+ d->next_vobu = d->pgc->cell_playback[i].first_sector + count;
+ d->pack_len = 0;
+ break;
+ }
+
+ count -= sizeCell;
+ }
+
+ if( i > d->cell_end )
+ {
+ return 0;
+ }
+
+ return 1;
+}
+
+/***********************************************************************
+ * hb_dvd_read
+ ***********************************************************************
+ *
+ **********************************************************************/
+int hb_dvd_read( hb_dvd_t * d, hb_buffer_t * b )
+{
+ if( !d->pack_len )
+ {
+ /* New pack */
+ dsi_t dsi_pack;
+ int error;
+
+ error = 0;
+
+ for( ;; )
+ {
+ int block, pack_len, next_vobu;
+
+ if( DVDReadBlocks( d->file, d->next_vobu, 1, b->data ) != 1 )
+ {
+ hb_log( "dvd: DVDReadBlocks failed (%d)", d->next_vobu );
+ return 0;
+ }
+
+ navRead_DSI( &dsi_pack, &b->data[DSI_START_BYTE] );
+
+ block = dsi_pack.dsi_gi.nv_pck_lbn;
+ pack_len = dsi_pack.dsi_gi.vobu_ea;
+ next_vobu = block + ( dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
+
+ if( pack_len > 0 &&
+ pack_len < 1024 &&
+ block >= d->next_vobu &&
+ ( block <= d->title_start + d->title_block_count ||
+ block <= d->title_end ) )
+ {
+ /* XXX
+ This looks like a valid VOBU, but actually we are
+ just hoping */
+ if( error )
+ {
+#if 0
+ hb_log( "dvd: found VOBU at %d (b %d, l %d, n %d)",
+ d->next_vobu, block, pack_len, next_vobu );
+#endif
+ }
+ d->block = block;
+ d->pack_len = pack_len;
+ d->next_vobu = next_vobu;
+ break;
+ }
+
+ /* Wasn't a valid VOBU, try next block */
+ if( !error )
+ {
+#if 0
+ hb_log( "dvd: looking for a VOBU (%d)", d->next_vobu );
+#endif
+ }
+
+ if( ++error > 1024 )
+ {
+ hb_log( "dvd: couldn't find a VOBU after 1024 blocks" );
+ return 0;
+ }
+
+ (d->next_vobu)++;
+ }
+
+ if( dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
+ {
+ d->cell_cur = d->cell_next;
+ d->next_vobu = d->pgc->cell_playback[d->cell_cur].first_sector;
+ FindNextCell( d );
+ }
+ }
+ else
+ {
+ if( DVDReadBlocks( d->file, d->block, 1, b->data ) != 1 )
+ {
+ hb_log( "reader: DVDReadBlocks failed (%d)", d->block );
+ return 0;
+ }
+ d->pack_len--;
+ }
+
+ d->block++;
+
+ return 1;
+}
+
+/***********************************************************************
+ * hb_dvd_chapter
+ ***********************************************************************
+ * Returns in which chapter the next block to be read is.
+ * Chapter numbers start at 1.
+ **********************************************************************/
+int hb_dvd_chapter( hb_dvd_t * d )
+{
+ int i;
+ int pgc_id, pgn;
+ pgc_t * pgc;
+
+ for( i = 0;
+ i < d->ifo->vts_ptt_srpt->title[d->ttn-1].nr_of_ptts;
+ i++ )
+ {
+ /* Get pgc for chapter (i+1) */
+ pgc_id = d->ifo->vts_ptt_srpt->title[d->ttn-1].ptt[i].pgcn;
+ pgn = d->ifo->vts_ptt_srpt->title[d->ttn-1].ptt[i].pgn;
+ pgc = d->ifo->vts_pgcit->pgci_srp[pgc_id-1].pgc;
+
+ if( d->cell_cur >= pgc->program_map[pgn-1] - 1 &&
+ d->cell_cur <= pgc->nr_of_cells - 1 )
+ {
+ /* We are in this chapter */
+ return i + 1;
+ }
+ }
+
+ /* End of title */
+ return -1;
+}
+
+/***********************************************************************
+ * hb_dvd_close
+ ***********************************************************************
+ * Closes and frees everything
+ **********************************************************************/
+void hb_dvd_close( hb_dvd_t ** _d )
+{
+ hb_dvd_t * d = *_d;
+
+ if( d->vmg )
+ {
+ ifoClose( d->vmg );
+ }
+ if( d->reader )
+ {
+ DVDClose( d->reader );
+ }
+
+ free( d );
+ *_d = NULL;
+}
+
+/***********************************************************************
+ * 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 void FindNextCell( hb_dvd_t * d )
+{
+ int i = 0;
+
+ if( d->pgc->cell_playback[d->cell_cur].block_type ==
+ BLOCK_TYPE_ANGLE_BLOCK )
+ {
+
+ while( d->pgc->cell_playback[d->cell_cur+i].block_mode !=
+ BLOCK_MODE_LAST_CELL )
+ {
+ i++;
+ }
+ d->cell_next = d->cell_cur + i + 1;
+ }
+ else
+ {
+ d->cell_next = d->cell_cur + 1;
+ }
+}
+
+/***********************************************************************
+ * 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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 21:52:12 +0000