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dvdnav.c
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/* dvdnav.c
Copyright (c) 2003-2019 HandBrake Team
This file is part of the HandBrake source code
Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License v2.
For full terms see the file COPYING file or visit http://www.gnu.org/licenses/gpl-2.0.html
*/
#include "libavcodec/avcodec.h"
#include "handbrake/handbrake.h"
#include "handbrake/lang.h"
#include "handbrake/dvd.h"
#include "dvdnav/dvdnav.h"
#include "dvdread/ifo_read.h"
#include "dvdread/ifo_print.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( hb_handle_t * h, const 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, uint64_t min_duration );
static int hb_dvdnav_start( hb_dvd_t * d, hb_title_t *title, int chapter );
static void hb_dvdnav_stop( hb_dvd_t * d );
static int hb_dvdnav_seek( hb_dvd_t * d, float f );
static hb_buffer_t * hb_dvdnav_read( hb_dvd_t * d );
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 * d, int angle );
static int hb_dvdnav_main_feature( hb_dvd_t * d, hb_list_t * list_title );
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,
hb_dvdnav_main_feature
};
// there can be at most 999 PGCs per title. round that up to the nearest
// power of two.
#define MAX_PGCN 1024
/***********************************************************************
* Local prototypes
**********************************************************************/
static void PgcWalkInit( uint32_t pgcn_map[MAX_PGCN/32] );
static int FindChapterIndex( hb_list_t * list, int pgcn, int pgn );
static int NextPgcn( ifo_handle_t *ifo, int pgcn, uint32_t pgcn_map[MAX_PGCN/32] );
static int FindNextCell( pgc_t *pgc, int cell_cur );
static int dvdtime2msec( dvd_time_t * );
static int TitleOpenIfo(hb_dvdnav_t * d, int t);
static void TitleCloseIfo(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 )
{
char * path_ccp = hb_utf8_to_cp( d->path );
if ( d->dvdnav )
dvdnav_close( d->dvdnav );
/* Open device */
if( dvdnav_open(&d->dvdnav, path_ccp) != 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;
}
free( path_ccp );
return 1;
fail:
if( d->dvdnav ) dvdnav_close( d->dvdnav );
free( path_ccp );
return 0;
}
/***********************************************************************
* hb_dvdnav_init
***********************************************************************
*
**********************************************************************/
static hb_dvd_t * hb_dvdnav_init( hb_handle_t * h, const char * path )
{
hb_dvd_t * e;
hb_dvdnav_t * d;
int region_mask;
char * path_ccp;
e = calloc( sizeof( hb_dvd_t ), 1 );
d = &(e->dvdnav);
d->h = h;
/*
* Convert UTF-8 path to current code page on Windows
* hb_utf8_to_cp() is the same as strdup on non-Windows,
* so no #ifdef required here
*/
path_ccp = hb_utf8_to_cp( path );
/* Log DVD drive region code */
if ( hb_dvd_region( path_ccp, ®ion_mask ) == 0 )
{
hb_log( "dvd: Region mask 0x%02x", region_mask );
if ( region_mask == 0xFF )
{
hb_log( "dvd: Warning, DVD device has no region set" );
}
}
/* Open device */
if( dvdnav_open(&d->dvdnav, path_ccp) != 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_ccp ) ) )
{
/*
* 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 ); /* hb_dvdnav_title_scan assumes UTF-8 path, so not path_ccp here */
free( path_ccp );
return e;
fail:
if( d->dvdnav ) dvdnav_close( d->dvdnav );
if( d->vmg ) ifoClose( d->vmg );
if( d->reader ) DVDClose( d->reader );
free( e );
free( path_ccp );
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;
}
static uint64_t
PttDuration(ifo_handle_t *ifo, int ttn, int pttn, int *blocks, int *last_pgcn)
{
int pgcn, pgn;
pgc_t * pgc;
uint64_t duration = 0;
int cell_start, cell_end;
int i;
*blocks = 0;
// Initialize map of visited pgc's to prevent loops
uint32_t pgcn_map[MAX_PGCN/32];
PgcWalkInit( pgcn_map );
pgcn = ifo->vts_ptt_srpt->title[ttn-1].ptt[pttn-1].pgcn;
pgn = ifo->vts_ptt_srpt->title[ttn-1].ptt[pttn-1].pgn;
if ( pgcn < 1 || pgcn > ifo->vts_pgcit->nr_of_pgci_srp || pgcn >= MAX_PGCN)
{
hb_log( "invalid PGC ID %d, skipping", pgcn );
return 0;
}
if( pgn <= 0 || pgn > 99 )
{
hb_log( "scan: pgn %d not valid, skipping", pgn );
return 0;
}
do
{
pgc = ifo->vts_pgcit->pgci_srp[pgcn-1].pgc;
if (!pgc)
{
*blocks = 0;
duration = 0;
hb_log( "scan: pgc not valid, skipping" );
break;
}
if (pgc->cell_playback == NULL)
{
*blocks = 0;
duration = 0;
hb_log("invalid PGC cell_playback table, skipping");
break;
}
if (pgn > pgc->nr_of_programs)
{
pgn = 1;
continue;
}
duration += 90LL * dvdtime2msec( &pgc->playback_time );
cell_start = pgc->program_map[pgn-1] - 1;
cell_end = pgc->nr_of_cells - 1;
for(i = cell_start; i <= cell_end; i = FindNextCell(pgc, i))
{
*blocks += pgc->cell_playback[i].last_sector + 1 -
pgc->cell_playback[i].first_sector;
}
*last_pgcn = pgcn;
pgn = 1;
} while((pgcn = NextPgcn(ifo, pgcn, pgcn_map)) != 0);
return duration;
}
static void add_subtitle( hb_list_t * list_subtitle, int position,
iso639_lang_t * lang, int lang_extension,
uint8_t * palette, int style )
{
hb_subtitle_t * subtitle;
int ii, count;
count = hb_list_count(list_subtitle);
for (ii = 0; ii < count; ii++)
{
subtitle = hb_list_item(list_subtitle, ii);
if (((subtitle->id >> 8) & 0x1f) == position)
{
// The subtitle is already in the list
return;
}
}
subtitle = calloc(sizeof(hb_subtitle_t), 1);
subtitle->track = count;
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->format = PICTURESUB;
subtitle->source = VOBSUB;
subtitle->config.dest = RENDERSUB;
subtitle->stream_type = 0xbd;
subtitle->substream_type = 0x20 + position;
subtitle->codec = WORK_DECVOBSUB;
subtitle->timebase.num = 1;
subtitle->timebase.den = 90000;
memcpy(subtitle->palette, palette, 16 * sizeof(uint32_t));
subtitle->palette_set = 1;
const char * name = NULL;
switch (lang_extension)
{
case 1:
subtitle->attributes = HB_SUBTITLE_ATTR_NORMAL;
break;
case 2:
subtitle->attributes = HB_SUBTITLE_ATTR_LARGE;
strcat(subtitle->lang, " Large Type");
name = "Large Type";
break;
case 3:
subtitle->attributes = HB_SUBTITLE_ATTR_CHILDREN;
strcat(subtitle->lang, " Children");
name = "Children";
break;
case 5:
subtitle->attributes = HB_SUBTITLE_ATTR_CC;
strcat(subtitle->lang, " Closed Caption");
name = "Closed Caption";
break;
case 6:
subtitle->attributes = HB_SUBTITLE_ATTR_CC | HB_SUBTITLE_ATTR_LARGE;
strcat(subtitle->lang, " Closed Caption, Large Type");
name = "Closed Caption, Large Type";
break;
case 7:
subtitle->attributes = HB_SUBTITLE_ATTR_CC |
HB_SUBTITLE_ATTR_CHILDREN;
strcat(subtitle->lang, " Closed Caption, Children");
name = "Closed Caption, Children";
break;
case 9:
subtitle->attributes = HB_SUBTITLE_ATTR_FORCED;
strcat(subtitle->lang, " Forced");
break;
case 13:
subtitle->attributes = HB_SUBTITLE_ATTR_COMMENTARY;
strcat(subtitle->lang, " Director's Commentary");
name = "Commentary";
break;
case 14:
subtitle->attributes = HB_SUBTITLE_ATTR_COMMENTARY |
HB_SUBTITLE_ATTR_LARGE;
strcat(subtitle->lang, " Director's Commentary, Large Type");
name = "Commentary, Large Type";
break;
case 15:
subtitle->attributes = HB_SUBTITLE_ATTR_COMMENTARY |
HB_SUBTITLE_ATTR_CHILDREN;
strcat(subtitle->lang, " Director's Commentary, Children");
name = "Commentary, Children";
default:
subtitle->attributes = HB_SUBTITLE_ATTR_UNKNOWN;
break;
}
if (name != NULL)
{
subtitle->name = strdup(name);
}
switch (style)
{
case HB_VOBSUB_STYLE_4_3:
subtitle->attributes |= HB_SUBTITLE_ATTR_4_3;
strcat(subtitle->lang, " (4:3)");
break;
case HB_VOBSUB_STYLE_WIDE:
subtitle->attributes |= HB_SUBTITLE_ATTR_WIDE;
strcat(subtitle->lang, " (Wide Screen)");
break;
case HB_VOBSUB_STYLE_LETTERBOX:
subtitle->attributes |= HB_SUBTITLE_ATTR_LETTERBOX;
strcat(subtitle->lang, " (Letterbox)");
break;
case HB_VOBSUB_STYLE_PANSCAN:
subtitle->attributes |= HB_SUBTITLE_ATTR_PANSCAN;
strcat(subtitle->lang, " (Pan & Scan)");
break;
}
strcat(subtitle->lang, " [");
strcat(subtitle->lang, hb_subsource_name(subtitle->source));
strcat(subtitle->lang, "]");
hb_log("scan: id=0x%x, lang=%s, 3cc=%s ext=%i", subtitle->id,
subtitle->lang, subtitle->iso639_2, lang_extension);
hb_list_add(list_subtitle, subtitle);
}
/***********************************************************************
* hb_dvdnav_title_scan
**********************************************************************/
static hb_title_t * hb_dvdnav_title_scan( hb_dvd_t * e, int t, uint64_t min_duration )
{
hb_dvdnav_t * d = &(e->dvdnav);
hb_title_t * title;
int pgcn, i;
pgc_t * pgc;
hb_chapter_t * chapter;
hb_dvd_chapter_t * dvd_chapter;
int count;
const char * title_string;
char name[1024];
unsigned char unused[1024];
const char * codec_name;
hb_log( "scan: scanning title %d", t );
title = hb_title_init( d->path, t );
title->type = HB_DVD_TYPE;
if (dvdnav_get_title_string(d->dvdnav, &title_string) == DVDNAV_STATUS_OK)
{
title->name = strdup(title_string);
}
if (title->name == NULL || title->name[0] == 0)
{
free((char*)title->name);
if (DVDUDFVolumeInfo(d->reader, name, sizeof(name),
unused, sizeof(unused)))
{
char * p_cur, * p_last = d->path;
for( p_cur = d->path; *p_cur; p_cur++ )
{
if( IS_DIR_SEP(p_cur[0]) && p_cur[1] )
{
p_last = &p_cur[1];
}
}
title->name = strdup(p_last);
char *dot_term = strrchr(title->name, '.');
if (dot_term)
*dot_term = '\0';
}
else
{
title->name = strdup(name);
}
}
if (!TitleOpenIfo(d, t))
{
goto fail;
}
/* ignore titles with bogus cell addresses so we don't abort later
** in libdvdread. */
for ( i = 0; i < d->ifo->vts_c_adt->nr_of_vobs; ++i)
{
if( (d->ifo->vts_c_adt->cell_adr_table[i].start_sector & 0xffffff ) ==
0xffffff )
{
hb_log( "scan: cell_adr_table[%d].start_sector invalid (0x%x) "
"- skipping title", i,
d->ifo->vts_c_adt->cell_adr_table[i].start_sector );
goto fail;
}
if( (d->ifo->vts_c_adt->cell_adr_table[i].last_sector & 0xffffff ) ==
0xffffff )
{
hb_log( "scan: cell_adr_table[%d].last_sector invalid (0x%x) "
"- skipping title", i,
d->ifo->vts_c_adt->cell_adr_table[i].last_sector );
goto fail;
}
}
if (global_verbosity_level == 4)
{
ifo_print( d->reader, d->vts );
}
/* Get duration */
title->duration = d->duration;
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 (%"PRId64" 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 < min_duration)
{
hb_log( "scan: ignoring title (too short)" );
goto fail;
}
/* Get pgc */
if (d->pgcn < 1 ||
d->pgcn > d->ifo->vts_pgcit->nr_of_pgci_srp ||
d->pgcn >= MAX_PGCN)
{
hb_log( "invalid PGC ID %d for title %d, skipping", d->pgcn, t );
goto fail;
}
// Check all pgc's for validity
uint32_t pgcn_map[MAX_PGCN/32];
pgcn = d->pgcn;
PgcWalkInit( pgcn_map );
do
{
pgc = d->ifo->vts_pgcit->pgci_srp[pgcn-1].pgc;
if (!pgc || !pgc->program_map)
{
hb_log( "scan: pgc not valid, skipping" );
goto fail;
}
if (pgc->cell_playback == NULL)
{
hb_log( "invalid PGC cell_playback table for title %d, skipping", t );
goto fail;
}
} while ((pgcn = NextPgcn(d->ifo, pgcn, pgcn_map)) != 0);
pgc = d->ifo->vts_pgcit->pgci_srp[d->pgcn-1].pgc;
hb_log("pgc_id: %d, pgn: %d: pgc: %p", d->pgcn, d->pgn, pgc);
if (d->pgn > pgc->nr_of_programs)
{
hb_log( "invalid PGN %d for title %d, skipping", d->pgn, t );
goto fail;
}
/* Detect languages */
for (i = 0; i < d->ifo->vtsi_mat->nr_of_vts_audio_streams; i++)
{
int audio_format, lang_code, lang_extension, audio_control, position, j;
hb_audio_t * audio, * audio_tmp;
iso639_lang_t * lang;
hb_log( "scan: checking audio %d", i + 1 );
audio = calloc( sizeof( hb_audio_t ), 1 );
audio_format = d->ifo->vtsi_mat->vts_audio_attr[i].audio_format;
lang_code = d->ifo->vtsi_mat->vts_audio_attr[i].lang_code;
lang_extension = d->ifo->vtsi_mat->vts_audio_attr[i].code_extension;
audio_control =
d->ifo->vts_pgcit->pgci_srp[d->pgcn-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;
audio->config.in.codec_param = AV_CODEC_ID_AC3;
codec_name = "AC3";
break;
case 0x02:
case 0x03:
audio->id = 0xc0 + position;
audio->config.in.codec = HB_ACODEC_FFMPEG;
audio->config.in.codec_param = AV_CODEC_ID_MP2;
codec_name = "MPEG";
break;
case 0x04:
audio->id = ( ( 0xa0 + position ) << 8 ) | 0xbd;
audio->config.in.codec = HB_ACODEC_LPCM;
codec_name = "LPCM";
break;
case 0x06:
audio->id = ( ( 0x88 + position ) << 8 ) | 0xbd;
audio->config.in.codec = HB_ACODEC_DCA;
audio->config.in.codec_param = AV_CODEC_ID_DTS;
codec_name = "DTS";
break;
default:
audio->id = 0;
audio->config.in.codec = 0;
codec_name = "Unknown";
hb_log( "scan: unknown audio codec (%x)",
audio_format );
break;
}
if( !audio->id )
{
continue;
}
const char * name = NULL;
switch ( lang_extension )
{
case 1:
audio->config.lang.attributes = HB_AUDIO_ATTR_NORMAL;
break;
case 2:
audio->config.lang.attributes = HB_AUDIO_ATTR_VISUALLY_IMPAIRED;
name = "Visually Impaired";
break;
case 3:
audio->config.lang.attributes = HB_AUDIO_ATTR_COMMENTARY;
name = "Commentary";
break;
case 4:
audio->config.lang.attributes = HB_AUDIO_ATTR_ALT_COMMENTARY;
name = "Commentary";
break;
default:
audio->config.lang.attributes = HB_AUDIO_ATTR_NONE;
break;
}
if (name != NULL)
{
audio->config.in.name = strdup(name);
}
/* 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;
}
lang = lang_for_code( lang_code );
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 );
hb_log("scan: id=0x%x, lang=%s (%s), 3cc=%s ext=%i", audio->id,
audio->config.lang.simple, codec_name,
audio->config.lang.iso639_2, lang_extension);
audio->config.in.track = i;
audio->config.in.timebase.num = 1;
audio->config.in.timebase.den = 90000;
hb_list_add( title->list_audio, audio );
}
/* Check for subtitles */
for( i = 0; i < d->ifo->vtsi_mat->nr_of_vts_subp_streams; i++ )
{
int spu_control, pos, lang_ext = 0;
iso639_lang_t * lang;
hb_log( "scan: checking subtitle %d", i + 1 );
// spu_control
// 0x80000000 - Subtitle enabled
// 0x1f000000 - Position mask for 4:3 aspect subtitle track
// 0x001f0000 - Position mask for Wide Screen subtitle track
// 0x00001f00 - Position mask for Letterbox subtitle track
// 0x0000001f - Position mask for Pan&Scan subtitle track
spu_control =
d->ifo->vts_pgcit->pgci_srp[d->pgcn-1].pgc->subp_control[i];
if( !( spu_control & 0x80000000 ) )
{
hb_log( "scan: subtitle channel is not active" );
continue;
}
lang_ext = d->ifo->vtsi_mat->vts_subp_attr[i].code_extension;
lang = lang_for_code(d->ifo->vtsi_mat->vts_subp_attr[i].lang_code);
// display_aspect_ratio
// 0 = 4:3
// 3 = 16:9
// other = invalid
if (d->ifo->vtsi_mat->vts_video_attr.display_aspect_ratio)
{
// Add Wide Screen subtitle.
pos = (spu_control >> 16) & 0x1F;
add_subtitle(title->list_subtitle, pos, lang, lang_ext,
(uint8_t*)d->ifo->vts_pgcit->pgci_srp[d->pgcn-1].pgc->palette,
HB_VOBSUB_STYLE_WIDE);
// permitted_df
// 1 - Letterbox not permitted
// 2 - Pan&Scan not permitted
// 3 - Letterbox and Pan&Scan not permitted
if (!(d->ifo->vtsi_mat->vts_video_attr.permitted_df & 1))
{
// Letterbox permitted. Add Letterbox subtitle.
pos = (spu_control >> 8) & 0x1F;
add_subtitle(title->list_subtitle, pos, lang, lang_ext,
(uint8_t*)d->ifo->vts_pgcit->pgci_srp[d->pgcn-1].pgc->palette,
HB_VOBSUB_STYLE_LETTERBOX);
}
if (!(d->ifo->vtsi_mat->vts_video_attr.permitted_df & 2))
{
// Pan&Scan permitted. Add Pan&Scan subtitle.
pos = spu_control & 0x1F;
add_subtitle(title->list_subtitle, pos, lang, lang_ext,
(uint8_t*)d->ifo->vts_pgcit->pgci_srp[d->pgcn-1].pgc->palette,
HB_VOBSUB_STYLE_PANSCAN);
}
}
else
{
pos = (spu_control >> 24) & 0x1F;
add_subtitle(title->list_subtitle, pos, lang, lang_ext,
(uint8_t*)d->ifo->vts_pgcit->pgci_srp[d->pgcn-1].pgc->palette,
HB_VOBSUB_STYLE_4_3);
}
}
/* Chapters */
count = hb_list_count(d->list_dvd_chapter);
hb_log( "scan: title %d has %d chapters", t, count );
for (i = 0; i < count; i++)
{
char chapter_title[80];
dvd_chapter = hb_list_item(d->list_dvd_chapter, i);
chapter = calloc(sizeof( hb_chapter_t ), 1);
chapter->index = i + 1;
chapter->duration = dvd_chapter->duration;
sprintf(chapter_title, "Chapter %d", chapter->index);
hb_chapter_set_title(chapter, chapter_title);
hb_list_add( title->list_chapter, chapter );
int seconds = ( chapter->duration + 45000 ) / 90000;
chapter->hours = ( seconds / 3600 );
chapter->minutes = ( seconds % 3600 ) / 60;
chapter->seconds = ( seconds % 60 );
hb_log( "scan: chap %d, %"PRId64" ms",
chapter->index, chapter->duration / 90 );
}
/* Get aspect. We don't get width/height/rate infos here as
they tend to be wrong */
switch (d->ifo->vtsi_mat->vts_video_attr.display_aspect_ratio)
{
case 0:
title->container_dar.num = 4;
title->container_dar.den = 3;
break;
case 3:
title->container_dar.num = 16;
title->container_dar.den = 9;
break;
default:
hb_log( "scan: unknown aspect" );
goto fail;
}
switch (d->ifo->vtsi_mat->vts_video_attr.mpeg_version)
{
case 0:
title->video_codec = WORK_DECAVCODECV;
title->video_codec_param = AV_CODEC_ID_MPEG1VIDEO;
break;
case 1:
title->video_codec = WORK_DECAVCODECV;
title->video_codec_param = AV_CODEC_ID_MPEG2VIDEO;
break;
default:
hb_log("scan: unknown/reserved MPEG version %d",
d->ifo->vtsi_mat->vts_video_attr.mpeg_version);
title->video_codec = WORK_DECAVCODECV;
title->video_codec_param = AV_CODEC_ID_MPEG2VIDEO;
break;
}
hb_log("scan: aspect = %d:%d",
title->container_dar.num, title->container_dar.den);
/* This title is ok so far */
goto cleanup;
fail:
hb_title_close( &title );
cleanup:
TitleCloseIfo(d);
return title;
}
/***********************************************************************
* hb_dvdnav_title_scan
**********************************************************************/
static int find_title( hb_list_t * list_title, int title )
{
int ii;
for ( ii = 0; ii < hb_list_count( list_title ); ii++ )
{
hb_title_t * hbtitle = hb_list_item( list_title, ii );
if ( hbtitle->index == title )
return ii;
}
return -1;
}
static int skip_to_menu( dvdnav_t * dvdnav, int blocks )
{
int ii;
int result, event, len;
uint8_t buf[HB_DVD_READ_BUFFER_SIZE];
for ( ii = 0; ii < blocks; ii++ )
{
result = dvdnav_get_next_block( dvdnav, buf, &event, &len );
if ( result == DVDNAV_STATUS_ERR )
{
hb_error("dvdnav: Read Error, %s", dvdnav_err_to_string(dvdnav));
return 0;
}
switch ( event )
{
case DVDNAV_BLOCK_OK:
break;
case DVDNAV_CELL_CHANGE:
{
} break;
case DVDNAV_STILL_FRAME:
{
dvdnav_still_event_t *event;
event = (dvdnav_still_event_t*)buf;
dvdnav_still_skip( dvdnav );
if ( event->length == 255 )
{
// Infinite still. Can't be the main feature unless
// you like watching paint dry.
return 0;
}
} break;
case DVDNAV_WAIT:
dvdnav_wait_skip( dvdnav );
break;
case DVDNAV_STOP:
return 0;
case DVDNAV_HOP_CHANNEL:
break;
case DVDNAV_NAV_PACKET:
{
pci_t *pci = dvdnav_get_current_nav_pci( dvdnav );
if ( pci == NULL ) break;
int buttons = pci->hli.hl_gi.btn_ns;
int title, part;
result = dvdnav_current_title_info( dvdnav, &title, &part );
if (result != DVDNAV_STATUS_OK)
{
hb_log("dvdnav title info: %s", dvdnav_err_to_string(dvdnav));
}
else if ( title == 0 && buttons > 0 )
{
// Check button activation duration to see if this
// isn't another fake menu.
if ( pci->hli.hl_gi.btn_se_e_ptm - pci->hli.hl_gi.hli_s_ptm >
15 * 90000 )
{
// Found what appears to be a good menu.
return 1;
}
}
} break;
case DVDNAV_VTS_CHANGE:
{
dvdnav_vts_change_event_t *event;
event = (dvdnav_vts_change_event_t*)buf;
// Some discs initialize the vts with the "first play" item
// and some don't seem to. So if we see it is uninitialized,
// set it.
if ( event->new_vtsN <= 0 )
result = dvdnav_title_play( dvdnav, 1 );
} break;
case DVDNAV_HIGHLIGHT:
break;
case DVDNAV_AUDIO_STREAM_CHANGE:
break;
case DVDNAV_SPU_STREAM_CHANGE:
break;
case DVDNAV_SPU_CLUT_CHANGE:
break;
case DVDNAV_NOP:
break;
default:
break;
}
}
return 0;
}
static int try_button( dvdnav_t * dvdnav, int button, hb_list_t * list_title )
{
int result, event, len;
uint8_t buf[HB_DVD_READ_BUFFER_SIZE];
int ii, jj;
int32_t cur_title = 0, title, part;
uint64_t longest_duration = 0;
int longest = -1;
pci_t *pci = dvdnav_get_current_nav_pci( dvdnav );