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mpv/libmpdemux/open.c

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#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#ifdef __FreeBSD__
#include <sys/cdrio.h>
#endif
#include "../cfgparser.h"
#include "stream.h"
#include "demuxer.h"
#include "mf.h"
#ifdef STREAMING
#include "url.h"
#include "network.h"
#ifdef STREAMING_LIVE_DOT_COM
#include "demux_rtp.h"
int isSDPFile = 0;
#endif
static URL_t* url;
#endif
int dvd_title=0;
int dvd_chapter=1;
int dvd_last_chapter=0;
int dvd_angle=1;
char* dvd_device=NULL;
char* cdrom_device=NULL;
int dvd_nav=0; /* use libdvdnav? */
#ifdef USE_DVDNAV
#include "dvdnav_stream.h"
#endif
#ifdef USE_DVDREAD
#define DVDREAD_VERSION(maj,min,micro) ((maj)*10000 + (min)*100 + (micro))
/*
* Try to autodetect the libdvd-0.9.0 library
* (0.9.0 removed the <dvdread/dvd_udf.h> header, and moved the two defines
* DVD_VIDEO_LB_LEN and MAX_UDF_FILE_NAME_LEN from it to
* <dvdread/dvd_reader.h>)
*/
#if defined(DVD_VIDEO_LB_LEN) && defined(MAX_UDF_FILE_NAME_LEN)
#define LIBDVDREAD_VERSION DVDREAD_VERSION(0,9,0)
#else
#define LIBDVDREAD_VERSION DVDREAD_VERSION(0,8,0)
#endif
char * dvd_audio_stream_types[8] =
{ "ac3","unknown","mpeg1","mpeg2ext","lpcm","unknown","dts" };
char * dvd_audio_stream_channels[6] =
{ "unknown", "stereo", "unknown", "unknown", "unknown", "5.1" };
#endif
extern int vcd_get_track_end(int fd,int track);
#ifdef USE_TV
#include "tv.h"
extern int stream_open_tv(stream_t *stream, tvi_handle_t *tvh);
#endif
#ifdef HAVE_CDDA
stream_t* open_cdda(char* dev,char* track);
stream_t* cddb_open(char* dev,char* track);
#endif
// Open a new stream (stdin/file/vcd/url)
stream_t* open_stream(char* filename,int vcd_track,int* file_format){
stream_t* stream=NULL;
int f=-1;
off_t len;
#ifdef __FreeBSD__
int bsize = VCD_SECTOR_SIZE;
#endif
#ifdef HAVE_CDDA
if(filename && strncmp("cdda://",filename,7) == 0)
return open_cdda(cdrom_device ? cdrom_device : DEFAULT_CDROM_DEVICE,filename+7);
if(filename && strncmp("cddb://",filename,7) == 0)
return cddb_open(cdrom_device ? cdrom_device : DEFAULT_CDROM_DEVICE,filename+7);
#endif
//============ Open VideoCD track ==============
#ifdef HAVE_VCD
if(vcd_track){
int ret,ret2;
if(!cdrom_device) cdrom_device=DEFAULT_CDROM_DEVICE;
f=open(cdrom_device,O_RDONLY);
if(f<0){ mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_CdDevNotfound,cdrom_device);return NULL; }
vcd_read_toc(f);
ret2=vcd_get_track_end(f,vcd_track);
if(ret2<0){ mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_ErrTrackSelect " (get)\n");return NULL;}
ret=vcd_seek_to_track(f,vcd_track);
if(ret<0){ mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_ErrTrackSelect " (seek)\n");return NULL;}
// seek_to_byte+=ret;
mp_msg(MSGT_OPEN,MSGL_V,"VCD start byte position: 0x%X end: 0x%X\n",ret,ret2);
#ifdef __FreeBSD__
if (ioctl (f, CDRIOCSETBLOCKSIZE, &bsize) == -1) {
perror ( "Error in CDRIOCSETBLOCKSIZE");
}
#endif
stream=new_stream(f,STREAMTYPE_VCD);
stream->start_pos=ret;
stream->end_pos=ret2;
return stream;
}
#endif
//============ Open DVD title ==============
#ifdef USE_DVDNAV
if(dvd_nav){
dvdnav_priv_t *dvdnav_priv;
int event,len,tmplen=0;
stream=new_stream(-1,STREAMTYPE_DVDNAV);
if (!stream) {
mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_Exit_error);
return NULL;
}
if(!filename) filename=DEFAULT_DVD_DEVICE;
if (!(dvdnav_priv=new_dvdnav_stream(filename))) {
mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_CantOpenDVD,filename);
return NULL;
}
stream->priv=(void*)dvdnav_priv;
return stream;
}
#endif
#ifdef USE_DVDREAD
if(dvd_title){
// int ret,ret2;
dvd_priv_t *d;
int ttn,pgc_id,pgn;
dvd_reader_t *dvd;
dvd_file_t *title;
ifo_handle_t *vmg_file;
tt_srpt_t *tt_srpt;
ifo_handle_t *vts_file;
/**
* Open the disc.
*/
if(!dvd_device) dvd_device=DEFAULT_DVD_DEVICE;
dvd = DVDOpen(dvd_device);
if( !dvd ) {
mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_CantOpenDVD,dvd_device);
return NULL;
}
mp_msg(MSGT_OPEN,MSGL_INFO,MSGTR_DVDwait);
/**
* Load the video manager to find out the information about the titles on
* this disc.
*/
vmg_file = ifoOpen( dvd, 0 );
if( !vmg_file ) {
mp_msg(MSGT_OPEN,MSGL_ERR, "Can't open VMG info!\n");
DVDClose( dvd );
return NULL;
}
tt_srpt = vmg_file->tt_srpt;
/**
* Make sure our title number is valid.
*/
mp_msg(MSGT_OPEN,MSGL_INFO, MSGTR_DVDnumTitles,
tt_srpt->nr_of_srpts );
if( dvd_title < 1 || dvd_title > tt_srpt->nr_of_srpts ) {
mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_DVDinvalidTitle, dvd_title);
ifoClose( vmg_file );
DVDClose( dvd );
return NULL;
}
--dvd_title; // remap 1.. -> 0..
/**
* Make sure the chapter number is valid for this title.
*/
mp_msg(MSGT_OPEN,MSGL_INFO, MSGTR_DVDnumChapters,
tt_srpt->title[dvd_title].nr_of_ptts );
if( dvd_chapter<1 || dvd_chapter>tt_srpt->title[dvd_title].nr_of_ptts ) {
mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_DVDinvalidChapter, dvd_chapter);
ifoClose( vmg_file );
DVDClose( dvd );
return NULL;
}
if( dvd_last_chapter>0 ) {
if ( dvd_last_chapter<dvd_chapter || dvd_last_chapter>tt_srpt->title[dvd_title].nr_of_ptts ) {
mp_msg(MSGT_OPEN,MSGL_ERR, "Invalid DVD last chapter number: %d\n", dvd_last_chapter);
ifoClose( vmg_file );
DVDClose( dvd );
return NULL;
}
}
--dvd_chapter; // remap 1.. -> 0..
/* XXX No need to remap dvd_last_chapter */
/**
* Make sure the angle number is valid for this title.
*/
mp_msg(MSGT_OPEN,MSGL_INFO, MSGTR_DVDnumAngles,
tt_srpt->title[dvd_title].nr_of_angles );
if( dvd_angle<1 || dvd_angle>tt_srpt->title[dvd_title].nr_of_angles ) {
mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_DVDinvalidAngle, dvd_angle);
ifoClose( vmg_file );
DVDClose( dvd );
return NULL;
}
--dvd_angle; // remap 1.. -> 0..
/**
* Load the VTS information for the title set our title is in.
*/
vts_file = ifoOpen( dvd, tt_srpt->title[dvd_title].title_set_nr );
if( !vts_file ) {
mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_DVDnoIFO,
tt_srpt->title[dvd_title].title_set_nr );
ifoClose( vmg_file );
DVDClose( dvd );
return NULL;
}
/**
* We've got enough info, time to open the title set data.
*/
title = DVDOpenFile( dvd, tt_srpt->title[dvd_title].title_set_nr,
DVD_READ_TITLE_VOBS );
if( !title ) {
mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_DVDnoVOBs,
tt_srpt->title[dvd_title].title_set_nr );
ifoClose( vts_file );
ifoClose( vmg_file );
DVDClose( dvd );
return NULL;
}
mp_msg(MSGT_OPEN,MSGL_INFO, MSGTR_DVDopenOk);
// store data
d=malloc(sizeof(dvd_priv_t)); memset(d,0,sizeof(dvd_priv_t));
d->dvd=dvd;
d->title=title;
d->vmg_file=vmg_file;
d->tt_srpt=tt_srpt;
d->vts_file=vts_file;
/**
* Check number of audio channels and types
*/
{
int ac3aid = 128;
int mpegaid = 0;
int pcmaid = 160;
d->nr_of_channels=0;
if ( vts_file->vts_pgcit )
{
int i;
for ( i=0;i<8;i++ )
if ( vts_file->vts_pgcit->pgci_srp[0].pgc->audio_control[i] & 0x8000 )
{
audio_attr_t * audio = &vts_file->vtsi_mat->vts_audio_attr[i];
int language = 0;
char tmp[] = "unknown";
if ( audio->lang_type == 1 )
{
language=audio->lang_code;
tmp[0]=language>>8;
tmp[1]=language&0xff;
tmp[2]=0;
}
d->audio_streams[d->nr_of_channels].language=language;
d->audio_streams[d->nr_of_channels].id=0;
switch ( audio->audio_format )
{
case 0: // ac3
case 6: // dts
d->audio_streams[d->nr_of_channels].id=ac3aid;
ac3aid++;
break;
case 2: // mpeg layer 1/2/3
case 3: // mpeg2 ext
d->audio_streams[d->nr_of_channels].id=mpegaid;
mpegaid++;
break;
case 4: // lpcm
d->audio_streams[d->nr_of_channels].id=pcmaid;
pcmaid++;
break;
}
d->audio_streams[d->nr_of_channels].type=audio->audio_format;
// Pontscho: to my mind, tha channels:
// 1 - stereo
// 5 - 5.1
d->audio_streams[d->nr_of_channels].channels=audio->channels;
mp_msg(MSGT_OPEN,MSGL_V,"[open] audio stream: %d audio format: %s (%s) language: %s aid: %d\n",
d->nr_of_channels,
dvd_audio_stream_types[ audio->audio_format ],
dvd_audio_stream_channels[ audio->channels ],
tmp,
d->audio_streams[d->nr_of_channels].id
);
d->nr_of_channels++;
}
}
mp_msg(MSGT_OPEN,MSGL_V,"[open] number of audio channels on disk: %d.\n",d->nr_of_channels );
}
/**
* Check number of subtitles and language
*/
{
int i;
d->nr_of_subtitles=0;
for ( i=0;i<32;i++ )
if ( vts_file->vts_pgcit->pgci_srp[0].pgc->subp_control[i] & 0x80000000 )
{
subp_attr_t * subtitle = &vts_file->vtsi_mat->vts_subp_attr[i];
int language = 0;
char tmp[] = "unknown";
if ( subtitle->type == 1 )
{
language=subtitle->lang_code;
tmp[0]=language>>8;
tmp[1]=language&0xff;
tmp[2]=0;
}
d->subtitles[ d->nr_of_subtitles ].language=language;
d->subtitles[ d->nr_of_subtitles ].id=d->nr_of_subtitles;
mp_msg(MSGT_OPEN,MSGL_V,"[open] subtitle ( sid ): %d language: %s\n",
d->nr_of_subtitles,
tmp
);
d->nr_of_subtitles++;
}
mp_msg(MSGT_OPEN,MSGL_V,"[open] number of subtitles on disk: %d\n",d->nr_of_subtitles );
}
/**
* Determine which program chain we want to watch. This is based on the
* chapter number.
*/
ttn = tt_srpt->title[ dvd_title ].vts_ttn; // local
pgc_id = vts_file->vts_ptt_srpt->title[ttn-1].ptt[dvd_chapter].pgcn; // local
pgn = vts_file->vts_ptt_srpt->title[ttn-1].ptt[dvd_chapter].pgn; // local
d->cur_pgc = vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
d->cur_cell = d->cur_pgc->program_map[pgn-1] - 1; // start playback here
d->packs_left=-1; // for Navi stuff
d->angle_seek=0;
/* XXX dvd_last_chapter is in the range 1..nr_of_ptts */
if ( dvd_last_chapter > 0 && dvd_last_chapter < tt_srpt->title[dvd_title].nr_of_ptts ) {
pgn=vts_file->vts_ptt_srpt->title[ttn-1].ptt[dvd_last_chapter].pgn;
d->last_cell=d->cur_pgc->program_map[pgn-1] - 1;
}
else
d->last_cell=d->cur_pgc->nr_of_cells;
if( d->cur_pgc->cell_playback[d->cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK ) d->cur_cell+=dvd_angle;
d->cur_pack = d->cur_pgc->cell_playback[ d->cur_cell ].first_sector;
d->cell_last_pack=d->cur_pgc->cell_playback[ d->cur_cell ].last_sector;
mp_msg(MSGT_DVD,MSGL_V, "DVD start cell: %d pack: 0x%X-0x%X \n",d->cur_cell,d->cur_pack,d->cell_last_pack);
// ... (unimplemented)
// return NULL;
stream=new_stream(-1,STREAMTYPE_DVD);
stream->start_pos=(off_t)d->cur_pack*2048;
stream->end_pos=(off_t)(d->cur_pgc->cell_playback[d->last_cell-1].last_sector)*2048;
mp_msg(MSGT_DVD,MSGL_V,"DVD start=%d end=%d \n",d->cur_pack,d->cur_pgc->cell_playback[d->last_cell-1].last_sector);
stream->priv=(void*)d;
return stream;
}
#endif
//============ Check for TV-input or multi-file input ====
if( (mf_support == 1)
#ifdef USE_TV
|| (tv_param_on == 1)
#endif
){
/* create stream */
stream = new_stream(-1, STREAMTYPE_DUMMY);
if (!stream) return(NULL);
stream->url=filename?strdup(filename):NULL;
return(stream);
}
#ifdef STREAMING
url = url_new(filename);
if(url) {
stream=new_stream(f,STREAMTYPE_STREAM);
if( streaming_start( stream, file_format, url )<0){
mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_UnableOpenURL, filename);
url_free(url);
return NULL;
}
mp_msg(MSGT_OPEN,MSGL_INFO,MSGTR_ConnToServer, url->hostname );
url_free(url);
return stream;
}
#endif
//============ Open STDIN or plain FILE ============
if(!strcmp(filename,"-")){
// read from stdin
mp_msg(MSGT_OPEN,MSGL_INFO,MSGTR_ReadSTDIN);
f=0; // 0=stdin
} else {
f=open(filename,O_RDONLY);
if(f<0){ mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_FileNotFound,filename);return NULL; }
}
len=lseek(f,0,SEEK_END); lseek(f,0,SEEK_SET);
if (len == -1)
return new_stream(f,STREAMTYPE_STREAM); // open as stream
#ifdef _LARGEFILE_SOURCE
mp_msg(MSGT_OPEN,MSGL_V,"File size is %lld bytes\n", (long long)len);
#else
mp_msg(MSGT_OPEN,MSGL_V,"File size is %u bytes\n", (unsigned int)len);
#endif
#ifdef STREAMING_LIVE_DOT_COM
// Check for a special case: a SDP file:
if (isSDPFile) {
return stream_open_sdp(f, len, file_format);
}
#endif
stream=new_stream(f,STREAMTYPE_FILE);
stream->end_pos=len;
return stream;
}
int dvd_parse_chapter_range(struct config *conf, const char *range){
char *s, *t;
conf; /* prevent warning from GCC */
s = range;
dvd_chapter = 1;
dvd_last_chapter = 0;
if (*range && isdigit(*range)) {
dvd_chapter = strtol(range, &s, 10);
if (range == s) {
mp_msg(MSGT_OPEN, MSGL_ERR, "Invalid chapter range specification %s\n", range);
return -1;
}
}
if (*s == 0)
return 0;
else if (*s != '-') {
mp_msg(MSGT_OPEN, MSGL_ERR, "Invalid chapter range specification %s\n", range);
return -1;
}
++s;
if (*s == 0)
return 0;
if (! isdigit(*s)) {
mp_msg(MSGT_OPEN, MSGL_ERR, "Invalid chapter range specification %s\n", range);
return -1;
}
dvd_last_chapter = strtol(s, &t, 10);
if (s == t || *t) {
mp_msg(MSGT_OPEN, MSGL_ERR, "Invalid chapter range specification %s\n", range);
return -1;
}
return 0;
}
#ifdef USE_DVDREAD
int dvd_aid_from_lang(stream_t *stream, unsigned char* lang){
dvd_priv_t *d=stream->priv;
int code,i;
while(lang && strlen(lang)>=2){
code=lang[1]|(lang[0]<<8);
for(i=0;i<d->nr_of_channels;i++){
if(d->audio_streams[i].language==code){
mp_msg(MSGT_OPEN,MSGL_INFO,"Selected DVD audio channel: %d language: %c%c\n",
d->audio_streams[i].id, lang[0],lang[1]);
return d->audio_streams[i].id;
}
// printf("%X != %X (%c%c)\n",code,d->audio_streams[i].language,lang[0],lang[1]);
}
lang+=2; while (lang[0]==',' || lang[0]==' ') ++lang;
}
mp_msg(MSGT_OPEN,MSGL_WARN,"No matching DVD audio language found!\n");
return -1;
}
int dvd_sid_from_lang(stream_t *stream, unsigned char* lang){
dvd_priv_t *d=stream->priv;
int code,i;
while(lang && strlen(lang)>=2){
code=lang[1]|(lang[0]<<8);
for(i=0;i<d->nr_of_subtitles;i++){
if(d->subtitles[i].language==code){
mp_msg(MSGT_OPEN,MSGL_INFO,"Selected DVD subtitle channel: %d language: %c%c\n",
d->subtitles[i].id, lang[0],lang[1]);
return d->subtitles[i].id;
}
}
lang+=2; while (lang[0]==',' || lang[0]==' ') ++lang;
}
mp_msg(MSGT_OPEN,MSGL_WARN,"No matching DVD subtitle language found!\n");
return -1;
}
static int dvd_next_cell(dvd_priv_t *d){
int next_cell=d->cur_cell;
mp_msg(MSGT_DVD,MSGL_V, "dvd_next_cell: next1=0x%X \n",next_cell);
if( d->cur_pgc->cell_playback[ next_cell ].block_type
== BLOCK_TYPE_ANGLE_BLOCK ) {
while(next_cell<d->last_cell){
if( d->cur_pgc->cell_playback[next_cell].block_mode
== BLOCK_MODE_LAST_CELL ) break;
++next_cell;
}
}
mp_msg(MSGT_DVD,MSGL_V, "dvd_next_cell: next2=0x%X \n",next_cell);
++next_cell;
if(next_cell>=d->last_cell) return -1; // EOF
if( d->cur_pgc->cell_playback[next_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK ){
next_cell+=dvd_angle;
if(next_cell>=d->last_cell) return -1; // EOF
}
mp_msg(MSGT_DVD,MSGL_V, "dvd_next_cell: next3=0x%X \n",next_cell);
return next_cell;
}
int dvd_read_sector(dvd_priv_t *d,unsigned char* data){
int len;
if(d->packs_left==0){
/**
* If we're not at the end of this cell, we can determine the next
* VOBU to display using the VOBU_SRI information section of the
* DSI. Using this value correctly follows the current angle,
* avoiding the doubled scenes in The Matrix, and makes our life
* really happy.
*
* Otherwise, we set our next address past the end of this cell to
* force the code above to go to the next cell in the program.
*/
if( d->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL ) {
d->cur_pack= d->dsi_pack.dsi_gi.nv_pck_lbn +
( d->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
mp_msg(MSGT_DVD,MSGL_DBG2, "Navi new pos=0x%X \n",d->cur_pack);
} else {
// end of cell! find next cell!
mp_msg(MSGT_DVD,MSGL_V, "--- END OF CELL !!! ---\n");
d->cur_pack=d->cell_last_pack+1;
}
}
read_next:
if(d->cur_pack>d->cell_last_pack){
// end of cell!
int next=dvd_next_cell(d);
if(next>=0){
d->cur_cell=next;
// if( d->cur_pgc->cell_playback[d->cur_cell].block_type
// == BLOCK_TYPE_ANGLE_BLOCK ) d->cur_cell+=dvd_angle;
d->cur_pack = d->cur_pgc->cell_playback[ d->cur_cell ].first_sector;
d->cell_last_pack=d->cur_pgc->cell_playback[ d->cur_cell ].last_sector;
mp_msg(MSGT_DVD,MSGL_V, "DVD next cell: %d pack: 0x%X-0x%X \n",d->cur_cell,d->cur_pack,d->cell_last_pack);
} else return -1; // EOF
}
len = DVDReadBlocks( d->title, d->cur_pack, 1, data );
if(!len) return -1; //error
if(data[38]==0 && data[39]==0 && data[40]==1 && data[41]==0xBF &&
data[1024]==0 && data[1025]==0 && data[1026]==1 && data[1027]==0xBF){
// found a Navi packet!!!
#if LIBDVDREAD_VERSION >= DVDREAD_VERSION(0,9,0)
navRead_DSI( &d->dsi_pack, &(data[ DSI_START_BYTE ]) );
#else
navRead_DSI( &d->dsi_pack, &(data[ DSI_START_BYTE ]), sizeof(dsi_t) );
#endif
if(d->cur_pack != d->dsi_pack.dsi_gi.nv_pck_lbn ){
mp_msg(MSGT_DVD,MSGL_V, "Invalid NAVI packet! lba=0x%X navi=0x%X \n",
d->cur_pack,d->dsi_pack.dsi_gi.nv_pck_lbn);
} else {
// process!
d->packs_left = d->dsi_pack.dsi_gi.vobu_ea;
mp_msg(MSGT_DVD,MSGL_DBG2, "Found NAVI packet! lba=0x%X len=%d \n",d->cur_pack,d->packs_left);
//navPrint_DSI(&d->dsi_pack);
mp_msg(MSGT_DVD,MSGL_DBG3,"\r### CELL %d: Navi: %d/%d IFO: %d/%d \n",d->cur_cell,
d->dsi_pack.dsi_gi.vobu_c_idn,d->dsi_pack.dsi_gi.vobu_vob_idn,
d->cur_pgc->cell_position[d->cur_cell].cell_nr,
d->cur_pgc->cell_position[d->cur_cell].vob_id_nr);
if(d->angle_seek){
int i,skip=0;
#if defined(__GNUC__) && defined(__sparc__)
// workaround for a bug in the sparc version of gcc 2.95.X ... 3.2,
// it generates incorrect code for unaligned access to a packed
// structure member, resulting in an mplayer crash with a SIGBUS
// signal.
//
// See also gcc problem report PR c/7847:
// http://gcc.gnu.org/cgi-bin/gnatsweb.pl?database=gcc&cmd=view+audit-trail&pr=7847
for(i=0;i<9;i++){ // check if all values zero:
typeof(d->dsi_pack.sml_agli.data[i].address) tmp_addr;
memcpy(&tmp_addr,&d->dsi_pack.sml_agli.data[i].address,sizeof(tmp_addr));
if((skip=tmp_addr)!=0) break;
}
#else
for(i=0;i<9;i++) // check if all values zero:
if((skip=d->dsi_pack.sml_agli.data[i].address)!=0) break;
#endif
if(skip){
// sml_agli table has valid data (at least one non-zero):
d->cur_pack=d->dsi_pack.dsi_gi.nv_pck_lbn+
d->dsi_pack.sml_agli.data[dvd_angle].address;
d->angle_seek=0;
mp_msg(MSGT_DVD,MSGL_V, "Angle-seek synced using sml_agli map! new_lba=0x%X \n",d->cur_pack);
} else {
// check if we're in the right cell, jump otherwise:
if( (d->dsi_pack.dsi_gi.vobu_c_idn==d->cur_pgc->cell_position[d->cur_cell].cell_nr) &&
(d->dsi_pack.dsi_gi.vobu_vob_idn==d->cur_pgc->cell_position[d->cur_cell].vob_id_nr) ){
d->angle_seek=0;
mp_msg(MSGT_DVD,MSGL_V, "Angle-seek synced by cell/vob IDN search! \n");
} else {
// wrong angle, skip this vobu:
d->cur_pack=d->dsi_pack.dsi_gi.nv_pck_lbn+
d->dsi_pack.dsi_gi.vobu_ea;
d->angle_seek=2; // DEBUG
}
}
}
}
++d->cur_pack;
goto read_next;
}
++d->cur_pack;
if(d->packs_left>=0) --d->packs_left;
if(d->angle_seek){
if(d->angle_seek==2) mp_msg(MSGT_DVD,MSGL_V, "!!! warning! reading packet while angle_seek !!!\n");
goto read_next; // searching for Navi packet
}
return d->cur_pack-1;
}
void dvd_seek(dvd_priv_t *d,int pos){
d->packs_left=-1;
d->cur_pack=pos;
// check if we stay in current cell (speedup things, and avoid angle skip)
if(d->cur_pack>d->cell_last_pack ||
d->cur_pack<d->cur_pgc->cell_playback[ d->cur_cell ].first_sector){
// ok, cell change, find the right cell!
d->cur_cell=0;
if( d->cur_pgc->cell_playback[d->cur_cell].block_type
== BLOCK_TYPE_ANGLE_BLOCK ) d->cur_cell+=dvd_angle;
while(1){
int next;
d->cell_last_pack=d->cur_pgc->cell_playback[ d->cur_cell ].last_sector;
if(d->cur_pack<d->cur_pgc->cell_playback[ d->cur_cell ].first_sector){
d->cur_pack=d->cur_pgc->cell_playback[ d->cur_cell ].first_sector;
break;
}
if(d->cur_pack<=d->cell_last_pack) break; // ok, we find it! :)
next=dvd_next_cell(d);
if(next<0){
// d->cur_pack=d->cell_last_pack+1;
break; // we're after the last cell
}
d->cur_cell=next;
}
}
mp_msg(MSGT_DVD,MSGL_V, "DVD Seek! lba=0x%X cell=%d packs: 0x%X-0x%X \n",
d->cur_pack,d->cur_cell,d->cur_pgc->cell_playback[ d->cur_cell ].first_sector,d->cell_last_pack);
// if we're in interleaved multi-angle cell, find the right angle chain!
// (read Navi block, and use the seamless angle jump table)
d->angle_seek=1;
}
void dvd_close(dvd_priv_t *d) {
ifoClose(d->vts_file);
ifoClose(d->vmg_file);
DVDCloseFile(d->title);
DVDClose(d->dvd);
}
#endif
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