/* $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/>.
+ Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License. */
#include "hb.h"
#include "lang.h"
+#include "dvd.h"
#include "dvdread/ifo_read.h"
#include "dvdread/nav_read.h"
-struct hb_dvd_s
+static hb_dvd_t * hb_dvdread_init( char * path );
+static void hb_dvdread_close( hb_dvd_t ** _d );
+static char * hb_dvdread_name( char * path );
+static int hb_dvdread_title_count( hb_dvd_t * d );
+static hb_title_t * hb_dvdread_title_scan( hb_dvd_t * d, int t );
+static int hb_dvdread_start( hb_dvd_t * d, hb_title_t *title, int chapter );
+static void hb_dvdread_stop( hb_dvd_t * d );
+static int hb_dvdread_seek( hb_dvd_t * d, float f );
+static int hb_dvdread_read( hb_dvd_t * d, hb_buffer_t * b );
+static int hb_dvdread_chapter( hb_dvd_t * d );
+static int hb_dvdread_angle_count( hb_dvd_t * d );
+static void hb_dvdread_set_angle( hb_dvd_t * d, int angle );
+
+hb_dvd_func_t hb_dvdread_func =
{
- 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;
+ hb_dvdread_init,
+ hb_dvdread_close,
+ hb_dvdread_name,
+ hb_dvdread_title_count,
+ hb_dvdread_title_scan,
+ hb_dvdread_start,
+ hb_dvdread_stop,
+ hb_dvdread_seek,
+ hb_dvdread_read,
+ hb_dvdread_chapter,
+ hb_dvdread_angle_count,
+ hb_dvdread_set_angle
};
+static hb_dvd_func_t *dvd_methods = &hb_dvdread_func;
+
/***********************************************************************
* Local prototypes
**********************************************************************/
-static void FindNextCell( hb_dvd_t * );
+static void FindNextCell( hb_dvdread_t * );
static int dvdtime2msec( dvd_time_t * );
+static int hb_dvdread_is_break( hb_dvdread_t * d );
+
+hb_dvd_func_t * hb_dvdread_methods( void )
+{
+ return &hb_dvdread_func;
+}
+
+static char * hb_dvdread_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_dvdread_init
***********************************************************************
*
**********************************************************************/
-hb_dvd_t * hb_dvd_init( char * path )
+hb_dvd_t * hb_dvdread_init( char * path )
{
- hb_dvd_t * d;
+ hb_dvd_t * e;
+ hb_dvdread_t * d;
- d = calloc( sizeof( hb_dvd_t ), 1 );
+ e = calloc( sizeof( hb_dvd_t ), 1 );
+ d = &(e->dvdread);
/* Open device */
if( !( d->reader = DVDOpen( path ) ) )
{
- hb_log( "dvd: DVDOpen failed (%s)", 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_log( "dvd: ifoOpen failed" );
+ hb_error( "dvd: ifoOpen failed" );
goto fail;
}
d->path = strdup( path );
- return d;
+ return e;
fail:
if( d->vmg ) ifoClose( d->vmg );
}
/***********************************************************************
- * hb_dvd_title_count
+ * hb_dvdread_title_count
**********************************************************************/
-int hb_dvd_title_count( hb_dvd_t * d )
+static int hb_dvdread_title_count( hb_dvd_t * e )
{
+ hb_dvdread_t *d = &(e->dvdread);
return d->vmg->tt_srpt->nr_of_srpts;
}
/***********************************************************************
- * hb_dvd_title_scan
+ * hb_dvdread_title_scan
**********************************************************************/
-hb_title_t * hb_dvd_title_scan( hb_dvd_t * d, int t )
+static hb_title_t * hb_dvdread_title_scan( hb_dvd_t * e, int t )
{
+ hb_dvdread_t *d = &(e->dvdread);
hb_title_t * title;
ifo_handle_t * vts = NULL;
int pgc_id, pgn, i;
- hb_chapter_t * chapter, * chapter_old;
+ hb_chapter_t * chapter;
int c;
uint64_t duration;
float duration_correction;
-
- title = hb_title_init( d->path, t );
+ 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;
+ 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_log( "scan: ifoOpen failed" );
+ 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;
d->pgc = vts->vts_pgcit->pgci_srp[pgc_id-1].pgc;
+ hb_log("pgc_id: %d, pgn: %d: pgc: 0x%x", pgc_id, pgn, d->pgc);
+
+ if( !d->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 = d->pgc->program_map[pgn-1] - 1;
title->block_start = d->pgc->cell_playback[title->cell_start].first_sector;
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->hours, title->minutes, title->seconds,
title->duration / 90 );
- /* Discard titles under 10 seconds */
- if( !( title->hours | title->minutes ) && title->seconds < 10 )
+ /* 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;
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_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];
{
case 0x00:
audio->id = ( ( 0x80 + position ) << 8 ) | 0xbd;
- audio->codec = HB_ACODEC_AC3;
+ audio->config.in.codec = HB_ACODEC_AC3;
break;
case 0x02:
case 0x03:
audio->id = 0xc0 + position;
- audio->codec = HB_ACODEC_MPGA;
+ audio->config.in.codec = HB_ACODEC_MPGA;
break;
case 0x04:
audio->id = ( ( 0xa0 + position ) << 8 ) | 0xbd;
- audio->codec = HB_ACODEC_LPCM;
+ 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->codec = 0;
+ audio->config.in.codec = 0;
hb_log( "scan: unknown audio codec (%x)",
audio_format );
break;
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" ) );
+ audio->config.lang.type = lang_extension;
- hb_log( "scan: id=%x, lang=%s", audio->id,
- audio->lang );
+ 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 );
}
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 );
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->track = i+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 ) );
+ strlen(lang->native_name) ? lang->native_name : lang->eng_name);
+ snprintf( subtitle->iso639_2, sizeof( subtitle->iso639_2 ), "%s",
+ lang->iso639_2);
+ subtitle->format = PICTURESUB;
+ subtitle->source = VOBSUB;
+ subtitle->config.dest = RENDERSUB; // By default render (burn-in) the VOBSUB.
+
+ 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", subtitle->id,
- subtitle->lang );
+ hb_log( "scan: id=%x, lang=%s, 3cc=%s", subtitle->id,
+ subtitle->lang, subtitle->iso639_2 );
hb_list_add( title->list_subtitle, subtitle );
}
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;
+ /* 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;
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 )
+ // if there are no more programs in this pgc, the end cell is the
+ // last cell. Otherwise it's the cell before the start cell of the
+ // next program.
+ if ( pgn == d->pgc->nr_of_programs )
{
- /* 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;
- }
+ chapter->cell_end = d->pgc->nr_of_cells - 1;
}
else
{
- /* ... the last cell of the title */
- chapter->cell_end = title->cell_end;
+ chapter->cell_end = d->pgc->program_map[pgn] - 2;;
}
- chapter->block_end =
- d->pgc->cell_playback[chapter->cell_end].last_sector;
+ 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;
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++;
- }
+ hb_list_add( title->list_chapter, chapter );
+ c++;
}
/* The durations we get for chapters aren't precise. Scale them so
switch( vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
{
case 0:
- title->aspect = HB_ASPECT_BASE * 4 / 3;
+ title->container_aspect = 4. / 3.;
break;
case 3:
- title->aspect = HB_ASPECT_BASE * 16 / 9;
+ title->container_aspect = 16. / 9.;
break;
default:
hb_log( "scan: unknown aspect" );
goto fail;
}
- hb_log( "scan: aspect = %d", title->aspect );
+ hb_log( "scan: aspect = %g", title->aspect );
/* This title is ok so far */
goto cleanup;
}
/***********************************************************************
- * hb_dvd_start
+ * hb_dvdread_start
***********************************************************************
* Title and chapter start at 1
**********************************************************************/
-int hb_dvd_start( hb_dvd_t * d, int title, int chapter )
+static int hb_dvdread_start( hb_dvd_t * e, hb_title_t *title, int chapter )
{
+ hb_dvdread_t *d = &(e->dvdread);
int pgc_id, pgn;
int i;
+ int t = title->index;
/* 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;
+ d->vts = d->vmg->tt_srpt->title[t-1].title_set_nr;
+ d->ttn = d->vmg->tt_srpt->title[t-1].vts_ttn;
if( !( d->ifo = ifoOpen( d->reader, d->vts ) ) )
{
- hb_log( "dvd: ifoOpen failed for VTS %d", d->vts );
+ hb_error( "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 );
+ hb_error( "dvd: DVDOpenFile failed for VTS %d", d->vts );
return 0;
}
d->block = d->pgc->cell_playback[d->cell_cur].first_sector;
d->next_vobu = d->block;
d->pack_len = 0;
+ d->cell_overlap = 0;
+ d->in_cell = 0;
+ d->in_sync = 2;
return 1;
}
/***********************************************************************
- * hb_dvd_stop
+ * hb_dvdread_stop
***********************************************************************
*
**********************************************************************/
-void hb_dvd_stop( hb_dvd_t * d )
+static void hb_dvdread_stop( hb_dvd_t * e )
{
+ hb_dvdread_t *d = &(e->dvdread);
if( d->ifo )
{
ifoClose( d->ifo );
}
/***********************************************************************
- * hb_dvd_seek
+ * hb_dvdread_seek
***********************************************************************
*
**********************************************************************/
-int hb_dvd_seek( hb_dvd_t * d, float f )
+static int hb_dvdread_seek( hb_dvd_t * e, float f )
{
+ hb_dvdread_t *d = &(e->dvdread);
int count, sizeCell;
int i;
if( count < sizeCell )
{
d->cell_cur = i;
+ d->cur_cell_id = 0;
FindNextCell( d );
- /* Now let hb_dvd_read find the next VOBU */
+ /* Now let hb_dvdread_read find the next VOBU */
d->next_vobu = d->pgc->cell_playback[i].first_sector + count;
d->pack_len = 0;
break;
return 0;
}
+ /*
+ * Assume that we are in sync, even if we are not given that it is obvious
+ * that we are out of sync if we have just done a seek.
+ */
+ d->in_sync = 2;
+
return 1;
}
+
/***********************************************************************
- * hb_dvd_read
+ * is_nav_pack
+ ***********************************************************************/
+int is_nav_pack( unsigned char *buf )
+{
+ /*
+ * The NAV Pack is comprised of the PCI Packet and DSI Packet, both
+ * of these start at known offsets and start with a special identifier.
+ *
+ * NAV = {
+ * PCI = { 00 00 01 bf # private stream header
+ * ?? ?? # length
+ * 00 # substream
+ * ...
+ * }
+ * DSI = { 00 00 01 bf # private stream header
+ * ?? ?? # length
+ * 01 # substream
+ * ...
+ * }
+ *
+ * The PCI starts at offset 0x26 into the sector, and the DSI starts at 0x400
+ *
+ * This information from: http://dvd.sourceforge.net/dvdinfo/
+ */
+ if( ( buf[0x26] == 0x00 && // PCI
+ buf[0x27] == 0x00 &&
+ buf[0x28] == 0x01 &&
+ buf[0x29] == 0xbf &&
+ buf[0x2c] == 0x00 ) &&
+ ( buf[0x400] == 0x00 && // DSI
+ buf[0x401] == 0x00 &&
+ buf[0x402] == 0x01 &&
+ buf[0x403] == 0xbf &&
+ buf[0x406] == 0x01 ) )
+ {
+ return ( 1 );
+ } else {
+ return ( 0 );
+ }
+}
+
+
+/***********************************************************************
+ * hb_dvdread_read
***********************************************************************
*
**********************************************************************/
-int hb_dvd_read( hb_dvd_t * d, hb_buffer_t * b )
+static int hb_dvdread_read( hb_dvd_t * e, hb_buffer_t * b )
{
+ hb_dvdread_t *d = &(e->dvdread);
+ top:
if( !d->pack_len )
{
/* New pack */
dsi_t dsi_pack;
- int error;
+ int error = 0;
+
+ // if we've just finished the last cell of the title we don't
+ // want to read another block because our next_vobu pointer
+ // is probably invalid. Just return 'no data' & our caller
+ // should check and discover we're at eof.
+ if ( d->cell_cur > d->cell_end )
+ return 0;
- error = 0;
-
for( ;; )
{
- int block, pack_len, next_vobu;
+ int block, pack_len, next_vobu, read_retry;
- if( DVDReadBlocks( d->file, d->next_vobu, 1, b->data ) != 1 )
+ for( read_retry = 0; read_retry < 3; read_retry++ )
{
- hb_log( "dvd: DVDReadBlocks failed (%d)", d->next_vobu );
- return 0;
+ if( DVDReadBlocks( d->file, d->next_vobu, 1, b->data ) == 1 )
+ {
+ /*
+ * Successful read.
+ */
+ break;
+ } else {
+ hb_log( "dvd: Read Error on blk %d, attempt %d",
+ d->next_vobu, read_retry );
+ }
+ }
+
+ if( read_retry == 3 )
+ {
+ hb_log( "dvd: vobu read error blk %d - skipping to cell %d",
+ d->next_vobu, d->cell_next );
+ d->cell_cur = d->cell_next;
+ if ( d->cell_cur > d->cell_end )
+ return 0;
+ d->in_cell = 0;
+ d->next_vobu = d->pgc->cell_playback[d->cell_cur].first_sector;
+ FindNextCell( d );
+ d->cell_overlap = 1;
+ continue;
+ }
+
+ if ( !is_nav_pack( b->data ) ) {
+ (d->next_vobu)++;
+ if( d->in_sync == 1 ) {
+ hb_log("dvd: Lost sync, searching for NAV pack at blk %d",
+ d->next_vobu);
+ d->in_sync = 0;
+ }
+ continue;
}
navRead_DSI( &dsi_pack, &b->data[DSI_START_BYTE] );
-
+
+ if ( d->in_sync == 0 && d->cur_cell_id &&
+ (d->cur_vob_id != dsi_pack.dsi_gi.vobu_vob_idn ||
+ d->cur_cell_id != dsi_pack.dsi_gi.vobu_c_idn ) )
+ {
+ // We walked out of the cell we're supposed to be in.
+ // If we're not at the start of our next cell go there.
+ hb_log("dvd: left cell %d (%u,%u) for (%u,%u) at block %u",
+ d->cell_cur, d->cur_vob_id, d->cur_cell_id,
+ dsi_pack.dsi_gi.vobu_vob_idn, dsi_pack.dsi_gi.vobu_c_idn,
+ d->next_vobu );
+ if ( d->next_vobu != d->pgc->cell_playback[d->cell_next].first_sector )
+ {
+ d->next_vobu = d->pgc->cell_playback[d->cell_next].first_sector;
+ d->cur_cell_id = 0;
+ continue;
+ }
+ }
+
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 );
+
+ // There are a total of 21 next vobu offsets (and 21 prev_vobu
+ // offsets) in the navpack SRI structure. The primary one is
+ // 'next_vobu' which is the offset (in dvd blocks) from the current
+ // block to the start of the next vobu. If the block at 'next_vobu'
+ // can't be read, 'next_video' is the offset to the vobu closest to it.
+ // The other 19 offsets are vobus at successively longer distances from
+ // the current block (this is so that a hardware player can do
+ // adaptive error recovery to skip over a bad spot on the disk). In all
+ // these offsets the high bit is set to indicate when it contains a
+ // valid offset. The next bit (2^30) is set to indicate that there's
+ // another valid offset in the SRI that's closer to the current block.
+ // A hardware player uses these bits to chose the closest valid offset
+ // and uses that as its next vobu. (Some mastering schemes appear to
+ // put a bogus offset in next_vobu with the 2^30 bit set & the
+ // correct offset in next_video. This works fine in hardware players
+ // but will mess up software that doesn't implement the full next
+ // vobu decision logic.) In addition to the flag bits there's a
+ // reserved value of the offset that indicates 'no next vobu' (which
+ // indicates the end of a cell). But having no next vobu pointer with a
+ // 'valid' bit set also indicates end of cell. Different mastering
+ // schemes seem to use all possible combinations of the flag bits
+ // and reserved values to indicate end of cell so we have to check
+ // them all or we'll get a disk read error from following an
+ // invalid offset.
+ uint32_t next_ptr = dsi_pack.vobu_sri.next_vobu;
+ if ( ( next_ptr & ( 1 << 31 ) ) == 0 ||
+ ( next_ptr & ( 1 << 30 ) ) != 0 ||
+ ( next_ptr & 0x3fffffff ) == 0x3fffffff )
+ {
+ next_ptr = dsi_pack.vobu_sri.next_video;
+ if ( ( next_ptr & ( 1 << 31 ) ) == 0 ||
+ ( next_ptr & 0x3fffffff ) == 0x3fffffff )
+ {
+ // don't have a valid forward pointer - assume end-of-cell
+ d->block = block;
+ d->pack_len = pack_len;
+ break;
+ }
+ }
+ next_vobu = block + ( next_ptr & 0x3fffffff );
if( pack_len > 0 &&
pack_len < 1024 &&
( 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;
}
/* 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" );
(d->next_vobu)++;
}
- if( dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
+ if( d->in_sync == 0 || d->in_sync == 2 )
+ {
+ if( d->in_sync == 0 )
+ {
+ hb_log( "dvd: In sync with DVD at block %d", d->block );
+ }
+ d->in_sync = 1;
+ }
+
+ // Revert the cell overlap, and check for a chapter break
+ // If this cell is zero length (prev_vobu & next_vobu both
+ // set to END_OF_CELL) we need to check for beginning of
+ // cell before checking for end or we'll advance to the next
+ // cell too early and fail to generate a chapter mark when this
+ // cell starts a chapter.
+ if( ( dsi_pack.vobu_sri.prev_vobu & (1 << 31 ) ) == 0 ||
+ ( dsi_pack.vobu_sri.prev_vobu & 0x3fffffff ) == 0x3fffffff )
+ {
+ // A vobu that's not at the start of a cell can have an
+ // EOC prev pointer (this seems to be associated with some
+ // sort of drm). The rest of the content in the cell may be
+ // booby-trapped so treat this like an end-of-cell rather
+ // than a beginning of cell.
+ if ( d->pgc->cell_playback[d->cell_cur].first_sector < dsi_pack.dsi_gi.nv_pck_lbn &&
+ d->pgc->cell_playback[d->cell_cur].last_sector >= dsi_pack.dsi_gi.nv_pck_lbn )
+ {
+ hb_log( "dvd: null prev_vobu in cell %d at block %d", d->cell_cur,
+ d->block );
+ // treat like end-of-cell then go directly to start of next cell.
+ d->cell_cur = d->cell_next;
+ d->in_cell = 0;
+ d->next_vobu = d->pgc->cell_playback[d->cell_cur].first_sector;
+ FindNextCell( d );
+ d->cell_overlap = 1;
+ goto top;
+ }
+ else
+ {
+ if ( d->block != d->pgc->cell_playback[d->cell_cur].first_sector )
+ {
+ hb_log( "dvd: beginning of cell %d at block %d", d->cell_cur,
+ d->block );
+ }
+ if( d->in_cell )
+ {
+ hb_error( "dvd: assuming missed end of cell %d", d->cell_cur );
+ d->cell_cur = d->cell_next;
+ d->next_vobu = d->pgc->cell_playback[d->cell_cur].first_sector;
+ FindNextCell( d );
+ d->cell_overlap = 1;
+ d->in_cell = 0;
+ } else {
+ d->in_cell = 1;
+ }
+ d->cur_vob_id = dsi_pack.dsi_gi.vobu_vob_idn;
+ d->cur_cell_id = dsi_pack.dsi_gi.vobu_c_idn;
+
+ if( d->cell_overlap )
+ {
+ b->new_chap = hb_dvdread_is_break( d );
+ d->cell_overlap = 0;
+ }
+ }
+ }
+
+ if( ( dsi_pack.vobu_sri.next_vobu & (1 << 31 ) ) == 0 ||
+ ( dsi_pack.vobu_sri.next_vobu & 0x3fffffff ) == 0x3fffffff )
{
+ if ( d->block <= d->pgc->cell_playback[d->cell_cur].first_sector ||
+ d->block > d->pgc->cell_playback[d->cell_cur].last_sector )
+ {
+ hb_log( "dvd: end of cell %d at block %d", d->cell_cur,
+ d->block );
+ }
d->cell_cur = d->cell_next;
+ d->in_cell = 0;
d->next_vobu = d->pgc->cell_playback[d->cell_cur].first_sector;
FindNextCell( d );
+ d->cell_overlap = 1;
+
}
}
else
{
if( DVDReadBlocks( d->file, d->block, 1, b->data ) != 1 )
{
- hb_log( "reader: DVDReadBlocks failed (%d)", d->block );
- return 0;
+ // this may be a real DVD error or may be DRM. Either way
+ // we don't want to quit because of one bad block so set
+ // things up so we'll advance to the next vobu and recurse.
+ hb_error( "dvd: DVDReadBlocks failed (%d), skipping to vobu %u",
+ d->block, d->next_vobu );
+ d->pack_len = 0;
+ goto top; /* XXX need to restructure this routine & avoid goto */
}
d->pack_len--;
}
}
/***********************************************************************
- * hb_dvd_chapter
+ * hb_dvdread_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 )
+static int hb_dvdread_chapter( hb_dvd_t * e )
{
+ hb_dvdread_t *d = &(e->dvdread);
int i;
int pgc_id, pgn;
+ int nr_of_ptts = d->ifo->vts_ptt_srpt->title[d->ttn-1].nr_of_ptts;
pgc_t * pgc;
- for( i = 0;
- i < d->ifo->vts_ptt_srpt->title[d->ttn-1].nr_of_ptts;
- i++ )
+ for( i = nr_of_ptts - 1;
+ i >= 0;
+ 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 )
+ if( d->cell_cur - d->cell_overlap >= pgc->program_map[pgn-1] - 1 &&
+ d->cell_cur - d->cell_overlap <= pgc->nr_of_cells - 1 )
{
/* We are in this chapter */
return i + 1;
}
/***********************************************************************
- * hb_dvd_close
+ * hb_dvdread_is_break
+ ***********************************************************************
+ * Returns chapter number if the current block is a new chapter start
+ **********************************************************************/
+static int hb_dvdread_is_break( hb_dvdread_t * d )
+{
+ int i;
+ int pgc_id, pgn;
+ int nr_of_ptts = d->ifo->vts_ptt_srpt->title[d->ttn-1].nr_of_ptts;
+ pgc_t * pgc;
+ int cell;
+
+ for( i = nr_of_ptts - 1;
+ i > 0;
+ 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;
+ cell = pgc->program_map[pgn-1] - 1;
+
+ if( cell <= d->cell_start )
+ break;
+
+ // This must not match against the start cell.
+ if( pgc->cell_playback[cell].first_sector == d->block && cell != d->cell_start )
+ {
+ return i + 1;
+ }
+ }
+
+ return 0;
+}
+
+/***********************************************************************
+ * hb_dvdread_close
***********************************************************************
* Closes and frees everything
**********************************************************************/
-void hb_dvd_close( hb_dvd_t ** _d )
+static void hb_dvdread_close( hb_dvd_t ** _d )
{
- hb_dvd_t * d = *_d;
+ hb_dvdread_t * d = &((*_d)->dvdread);
if( d->vmg )
{
}
/***********************************************************************
+ * hb_dvdread_angle_count
+ ***********************************************************************
+ * Returns the number of angles supported. We do not support angles
+ * with dvdread
+ **********************************************************************/
+static int hb_dvdread_angle_count( hb_dvd_t * d )
+{
+ return 1;
+}
+
+/***********************************************************************
+ * hb_dvdread_set_angle
+ ***********************************************************************
+ * Sets the angle to read. Not supported with dvdread
+ **********************************************************************/
+static void hb_dvdread_set_angle( hb_dvd_t * d, int angle )
+{
+}
+
+/***********************************************************************
* 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 )
+static void FindNextCell( hb_dvdread_t * d )
{
int i = 0;
i++;
}
d->cell_next = d->cell_cur + i + 1;
+ hb_log( "dvd: Skipping multi-angle cells %d-%d",
+ d->cell_cur,
+ d->cell_next - 1 );
}
else
{
return ms;
}
+
+char * hb_dvd_name( char * path )
+{
+ return dvd_methods->name(path);
+}
+
+hb_dvd_t * hb_dvd_init( char * path )
+{
+ return dvd_methods->init(path);
+}
+
+int hb_dvd_title_count( hb_dvd_t * d )
+{
+ return dvd_methods->title_count(d);
+}
+
+hb_title_t * hb_dvd_title_scan( hb_dvd_t * d, int t )
+{
+ return dvd_methods->title_scan(d, t);
+}
+
+int hb_dvd_start( hb_dvd_t * d, hb_title_t *title, int chapter )
+{
+ return dvd_methods->start(d, title, chapter);
+}
+
+void hb_dvd_stop( hb_dvd_t * d )
+{
+ dvd_methods->stop(d);
+}
+
+int hb_dvd_seek( hb_dvd_t * d, float f )
+{
+ return dvd_methods->seek(d, f);
+}
+
+int hb_dvd_read( hb_dvd_t * d, hb_buffer_t * b )
+{
+ return dvd_methods->read(d, b);
+}
+
+int hb_dvd_chapter( hb_dvd_t * d )
+{
+ return dvd_methods->chapter(d);
+}
+
+void hb_dvd_close( hb_dvd_t ** _d )
+{
+ dvd_methods->close(_d);
+}
+
+int hb_dvd_angle_count( hb_dvd_t * d )
+{
+ return dvd_methods->angle_count(d);
+}
+
+void hb_dvd_set_angle( hb_dvd_t * d, int angle )
+{
+ dvd_methods->set_angle(d, angle);
+}
+
+// hb_dvd_set_dvdnav must only be called when no dvd source is open
+// it rips the rug out from under things so be careful
+void hb_dvd_set_dvdnav( int enable )
+{
+ if (enable)
+ dvd_methods = hb_dvdnav_methods();
+ else
+ dvd_methods = hb_dvdread_methods();
+}
+
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