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mpv/open.c

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#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 "stream.h"
#include "demuxer.h"
#ifdef STREAMING
#include "url.h"
#include "network.h"
static URL_t* url;
#endif
int dvd_title=0;
int dvd_chapter=1;
int dvd_angle=1;
#ifdef USE_DVDREAD
#include <dvdread/dvd_reader.h>
#include <dvdread/ifo_types.h>
#include <dvdread/ifo_read.h>
#include <dvdread/dvd_udf.h>
#include <dvdread/nav_read.h>
//#include <dvdread/nav_print.h>
typedef struct {
dvd_reader_t *dvd;
dvd_file_t *title;
ifo_handle_t *vmg_file;
tt_srpt_t *tt_srpt;
ifo_handle_t *vts_file;
vts_ptt_srpt_t *vts_ptt_srpt;
pgc_t *cur_pgc;
//
int cur_cell;
int cur_pack;
int cell_last_pack;
// Navi:
int packs_left;
dsi_t dsi_pack;
} dvd_priv_t;
#endif
extern int vcd_get_track_end(int fd,int track);
// 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 VCD_CACHE
int vcd_cache_size=128;
#endif
#ifdef __FreeBSD__
int bsize = VCD_SECTOR_SIZE;
#endif
//============ Open VideoCD track ==============
if(vcd_track){
int ret,ret2;
if(!filename) filename=DEFAULT_CDROM_DEVICE;
f=open(filename,O_RDONLY);
if(f<0){ mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_CdDevNotfound,filename);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 VCD_CACHE
vcd_cache_init(vcd_cache_size);
#endif
#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;
}
//============ Open DVD title ==============
#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(!filename) filename=DEFAULT_DVD_DEVICE;
dvd = DVDOpen(filename);
if( !dvd ) {
mp_msg(MSGT_OPEN,MSGL_ERR, "Couldn't open DVD: %s\n",filename);
return NULL;
}
mp_msg(MSGT_OPEN,MSGL_INFO, "Reading disc structure, please wait...\n");
/**
* 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, "There are %d titles on this DVD.\n",
tt_srpt->nr_of_srpts );
if( dvd_title < 1 || dvd_title > tt_srpt->nr_of_srpts ) {
mp_msg(MSGT_OPEN,MSGL_ERR, "Invalid DVD title number: %d\n", 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, "There are %d chapters in this DVD title.\n",
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, "Invalid DVD chapter number: %d\n", dvd_chapter);
ifoClose( vmg_file );
DVDClose( dvd );
return NULL;
}
--dvd_chapter; // remap 1.. -> 0..
/**
* Make sure the angle number is valid for this title.
*/
mp_msg(MSGT_OPEN,MSGL_INFO, "There are %d angles in this DVD title.\n",
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, "Invalid DVD angle number: %d\n", dvd_angle);
ifoClose( vmg_file );
DVDClose( dvd );
return NULL;
}
/**
* 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, "Can't open the IFO file for DVD title %d.\n",
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, "Can't open title VOBS (VTS_%02d_1.VOB).\n",
tt_srpt->title[dvd_title].title_set_nr );
ifoClose( vts_file );
ifoClose( vmg_file );
DVDClose( dvd );
return NULL;
}
mp_msg(MSGT_OPEN,MSGL_INFO, "DVD successfully opened!\n");
// 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;
/**
* 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
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=0;
stream->priv=(void*)d;
return stream;
}
#endif
//============ Open STDIN ============
if(!strcmp(filename,"-")){
// read from stdin
mp_msg(MSGT_OPEN,MSGL_INFO,MSGTR_ReadSTDIN);
f=0; // 0=stdin
stream=new_stream(f,STREAMTYPE_STREAM);
return stream;
}
#ifdef STREAMING
url = url_new(filename);
if(url) {
(*file_format)=autodetectProtocol( url, &f );
if( (*file_format)==DEMUXER_TYPE_UNKNOWN ) {
mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_UnableOpenURL, filename);
url_free(url);
return NULL;
}
f=streaming_start( &url, f, file_format );
if(f<0){ mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_UnableOpenURL, url->url); return NULL; }
mp_msg(MSGT_OPEN,MSGL_INFO,MSGTR_ConnToServer, url->hostname );
stream=new_stream(f,STREAMTYPE_STREAM);
return NULL;
}
#endif
//============ Open plain FILE ============
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)
perror("Error: lseek failed to obtain video file size");
else
if(verbose)
#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
stream=new_stream(f,STREAMTYPE_FILE);
stream->end_pos=len;
return stream;
}
#ifdef USE_DVDREAD
static int dvd_next_cell(dvd_priv_t *d){
int next_cell=d->cur_cell;
if( d->cur_pgc->cell_playback[ next_cell ].block_type
== BLOCK_TYPE_ANGLE_BLOCK ) {
int i;
while(next_cell<d->cur_pgc->nr_of_cells){
if( d->cur_pgc->cell_playback[next_cell].block_mode
== BLOCK_MODE_LAST_CELL ) break;
++next_cell;
}
}
++next_cell;
if(next_cell>=d->cur_pgc->nr_of_cells) 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->cur_pgc->nr_of_cells) return -1; // EOF
}
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!!!
navRead_DSI( &d->dsi_pack, &(data[ DSI_START_BYTE ]), sizeof(dsi_t) );
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);
}
++d->cur_pack;
goto read_next;
}
++d->cur_pack;
if(d->packs_left>=0) --d->packs_left;
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);
// TODO: if we're in interleaved multi-angle cell, find the right angle chain!
// (read Navi block, and use the seamless angle jump table)
}
#endif
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