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mpv/stream/stream_dvd.c
qrwyeui 50abbf76e6 stream_dvd: fix subs/audio detection on DVDs containing multi-PGC titles 
On some DVDs, title number is not necessarily the same as the (first)
PGC number.  (Most often they are equal, since there's usually exactly
one PGC per title, which is likely why this issue wasn't noticed
before.)  When searching for audio/subtitle metadata, we want to look
at the actual PGC we're about to play.  See discussion in issue #4235.

Signed-off-by: wm4 <wm4@nowhere>
2017-03-15 02:54:18 +01:00

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/*
* Original author: Benjamin Zores
*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <string.h>
#include <strings.h>
#include <libgen.h>
#include <errno.h>
#include <stdint.h>
#include <dvdread/dvd_reader.h>
#include <dvdread/ifo_types.h>
#include <dvdread/ifo_read.h>
#include <dvdread/nav_read.h>
#include "osdep/io.h"
#include "config.h"
#include "mpv_talloc.h"
#include "common/common.h"
#include "common/msg.h"
#define FIRST_AC3_AID 128
#define FIRST_DTS_AID 136
#define FIRST_MPG_AID 0
#define FIRST_PCM_AID 160
#include "stream.h"
#include "options/m_config.h"
#include "options/options.h"
#include "options/path.h"
#include "stream_dvd_common.h"
#define LIBDVDREAD_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>)
*/
#ifndef DVDREAD_VERSION
#if defined(DVD_VIDEO_LB_LEN) && defined(MAX_UDF_FILE_NAME_LEN)
#define DVDREAD_VERSION LIBDVDREAD_VERSION(0,9,0)
#else
#define DVDREAD_VERSION LIBDVDREAD_VERSION(0,8,0)
#endif
#endif
typedef struct {
int id; // 0 - 31 mpeg; 128 - 159 ac3; 160 - 191 pcm
int language;
int type;
int channels;
} stream_language_t;
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_title;
int cur_cell;
int last_cell;
int cur_pack;
int cell_last_pack;
int cur_pgc_idx;
// Navi:
int packs_left;
dsi_t dsi_pack;
int angle_seek;
unsigned int *cell_times_table;
// audio datas
int nr_of_channels;
stream_language_t audio_streams[32];
// subtitles
int nr_of_subtitles;
stream_language_t subtitles[32];
int dvd_angle;
char *dvd_device_current;
int dvd_speed;
int dvd_title;
int cfg_title;
char *cfg_device;
} dvd_priv_t;
static int dvd_lang_from_aid(stream_t *stream, int id) {
dvd_priv_t *d;
int i;
if (!stream) return 0;
d = stream->priv;
if (!d) return 0;
for(i=0;i<d->nr_of_channels;i++) {
if(d->audio_streams[i].id==id)
return d->audio_streams[i].language;
}
return 0;
}
static int dvd_number_of_subs(stream_t *stream) {
int i;
int maxid = -1;
dvd_priv_t *d;
if (!stream) return -1;
d = stream->priv;
if (!d) return -1;
for (i = 0; i < d->nr_of_subtitles; i++)
if (d->subtitles[i].id > maxid) maxid = d->subtitles[i].id;
return maxid + 1;
}
static int dvd_lang_from_sid(stream_t *stream, int id) {
int i;
dvd_priv_t *d;
if (!stream) return 0;
d = stream->priv;
if (!d) return 0;
for (i = 0; i < d->nr_of_subtitles; i++)
if (d->subtitles[i].id == id && d->subtitles[i].language) return d->subtitles[i].language;
return 0;
}
static int dvd_next_cell(stream_t *stream, dvd_priv_t *d) {
int next_cell=d->cur_cell;
MP_DBG(stream, "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_DBG(stream, "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+=d->dvd_angle-1;
if(next_cell>=d->last_cell)
return -1; // EOF
}
MP_DBG(stream, "dvd_next_cell: next3=0x%X \n",next_cell);
return next_cell;
}
static int dvd_read_sector(stream_t *stream, 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_DBG(stream, "Navi new pos=0x%X \n",d->cur_pack);
} else {
// end of cell! find next cell!
MP_VERBOSE(stream, "--- 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(stream, 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-1;
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_VERBOSE(stream, "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);
// only == 0 should indicate an error, but some dvdread version are buggy when used with dvdcss
if(len <= 0) 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 DVDREAD_VERSION >= LIBDVDREAD_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_VERBOSE(stream, "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_DBG(stream, "Found NAVI packet! lba=0x%X len=%d \n",d->cur_pack,d->packs_left);
//navPrint_DSI(&d->dsi_pack);
MP_TRACE(stream, "\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;
for(i=0;i<9;i++) // check if all values zero:
if((skip=d->dsi_pack.sml_agli.data[i].address)!=0) break;
if(skip && skip!=0x7fffffff) {
// 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[d->dvd_angle-1].address;
d->angle_seek=0;
d->cur_pack--;
MP_VERBOSE(stream, "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_VERBOSE(stream, "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_VERBOSE(stream, "!!! warning! reading packet while angle_seek !!!\n");
goto read_next; // searching for Navi packet
}
return d->cur_pack-1;
}
static int fill_buffer(stream_t *s, char *buf, int len)
{
int64_t pos;
if (len < 2048)
return -1;
pos = dvd_read_sector(s, s->priv, buf);
if (pos < 0)
return -1;
return 2048; // full sector
}
static void stream_dvd_close(stream_t *s) {
dvd_priv_t *d = s->priv;
ifoClose(d->vts_file);
ifoClose(d->vmg_file);
DVDCloseFile(d->title);
DVDClose(d->dvd);
if (d->dvd_speed)
dvd_set_speed(s,d->dvd_device_current, -1); /* -1 => restore default */
}
static int mp_get_titleset_length(ifo_handle_t *vts_file, tt_srpt_t *tt_srpt, int title_no)
{
int vts_ttn; ///< title number within video title set
int pgc_no; ///< program chain number
int msec; ///< time length in milliseconds
msec=0;
if(!vts_file || !tt_srpt)
return 0;
if(vts_file->vtsi_mat && vts_file->vts_pgcit)
{
vts_ttn = tt_srpt->title[title_no].vts_ttn - 1;
pgc_no = vts_file->vts_ptt_srpt->title[vts_ttn].ptt[0].pgcn - 1;
msec = mp_dvdtimetomsec(&vts_file->vts_pgcit->pgci_srp[pgc_no].pgc->playback_time);
}
return msec;
}
static int get_num_chapter(ifo_handle_t *vts_file, tt_srpt_t *tt_srpt, int title_no)
{
if(!vts_file || !tt_srpt)
return 0;
if(title_no < 0 || title_no >= tt_srpt->nr_of_srpts)
return 0;
// map global title to vts title
title_no = tt_srpt->title[title_no].vts_ttn - 1;
if(title_no < 0 || title_no >= vts_file->vts_ptt_srpt->nr_of_srpts)
return 0;
return vts_file->vts_ptt_srpt->title[title_no].nr_of_ptts;
}
// p: in=chapter number, out=PTS
static int get_chapter_time(ifo_handle_t *vts_file, tt_srpt_t *tt_srpt, int title_no, double *p)
{
unsigned int i, cell, last_cell;
unsigned int t=0;
ptt_info_t *ptt;
pgc_t *pgc;
title_no = tt_srpt->title[title_no].vts_ttn - 1;
if(vts_file->vts_ptt_srpt->title[title_no].nr_of_ptts < 2)
return 0;
ptt = vts_file->vts_ptt_srpt->title[title_no].ptt;
int cur = 0;
for(i=0; i<vts_file->vts_ptt_srpt->title[title_no].nr_of_ptts; i++)
{
pgc = vts_file->vts_pgcit->pgci_srp[ptt[i].pgcn-1].pgc;
cell = pgc->program_map[ptt[i].pgn-1]; //here the cell is 1-based
if(ptt[i].pgn<pgc->nr_of_programs)
last_cell = pgc->program_map[ptt[i].pgn];
else
last_cell = 0;
while (cell < last_cell) {
if(!(pgc->cell_playback[cell-1].block_type == BLOCK_TYPE_ANGLE_BLOCK &&
pgc->cell_playback[cell-1].block_mode != BLOCK_MODE_FIRST_CELL)
) {
if (cur == *p) {
*p = t / 1000.0;
return 1;
}
t += mp_dvdtimetomsec(&pgc->cell_playback[cell-1].playback_time);
cur++;
}
cell++;
}
}
return 0;
}
static void list_chapters(stream_t *stream, ifo_handle_t *vts_file, tt_srpt_t *tt_srpt, int title_no)
{
MP_INFO(stream, "CHAPTERS: ");
for (int n = 0; ; n++) {
double p = n;
int r;
r = get_chapter_time(vts_file, tt_srpt, title_no, &p);
if (!r)
break;
int t = p * 1000;
MP_INFO(stream, "%02d:%02d:%02d.%03d,", t/3600000, (t/60000)%60, (t/1000)%60, t%1000);
}
MP_INFO(stream, "\n");
}
static double dvd_get_current_time(stream_t *stream, int cell)
{
int i, tm;
dvd_priv_t *d = stream->priv;
tm=0;
if(cell < 0) cell=d->cur_cell;
for(i=0; i<cell; i++) {
if(d->cur_pgc->cell_playback[i].block_type == BLOCK_TYPE_ANGLE_BLOCK &&
d->cur_pgc->cell_playback[i].block_mode != BLOCK_MODE_FIRST_CELL
)
continue;
tm += d->cell_times_table[i];
}
tm += mp_dvdtimetomsec(&d->dsi_pack.dsi_gi.c_eltm);
return (double)tm/1000.0;
}
static void dvd_seek(stream_t *stream, 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!
cell_playback_t *cell;
for(d->cur_cell=0; d->cur_cell < d->cur_pgc->nr_of_cells; d->cur_cell++) {
cell = &(d->cur_pgc->cell_playback[d->cur_cell]);
if(cell->block_type == BLOCK_TYPE_ANGLE_BLOCK && cell->block_mode != BLOCK_MODE_FIRST_CELL)
continue;
d->cell_last_pack=cell->last_sector;
if(d->cur_pack<cell->first_sector) {
d->cur_pack=cell->first_sector;
break;
}
if(d->cur_pack<=d->cell_last_pack) break; // ok, we find it! :)
}
}
MP_VERBOSE(stream, "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;
}
static int do_seek(stream_t *s, int64_t newpos) {
stream_drop_buffers(s);
dvd_seek(s, s->priv,newpos/2048);
return 1;
}
static int dvd_seek_to_time(stream_t *stream, ifo_handle_t *vts_file, double sec)
{
unsigned int i, j, k, timeunit, ac_time, tmap_sector=0, cell_sector=0, vobu_sector=0;
int t=0;
double tm, duration;
int64_t pos = -1;
dvd_priv_t *d = stream->priv;
vts_tmapt_t *vts_tmapt = vts_file->vts_tmapt;
if(!vts_file->vts_tmapt || sec < 0)
return 0;
duration = (double) mp_get_titleset_length(d->vts_file, d->tt_srpt, d->cur_title) / 1000.0f;
if(sec > duration)
return 0;
i=d->cur_pgc_idx;
timeunit = vts_tmapt->tmap[i].tmu;
for(j = 0; j < vts_tmapt->tmap[i].nr_of_entries; j++) {
ac_time = timeunit * (j + 1);
if(ac_time >= sec)
break;
tmap_sector = vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff;
}
//search enclosing cell
for(i=0; i<d->cur_pgc->nr_of_cells; i++) {
if(tmap_sector >= d->cur_pgc->cell_playback[i].first_sector && tmap_sector <= d->cur_pgc->cell_playback[i].last_sector) {
cell_sector = d->cur_pgc->cell_playback[i].first_sector;
break;
}
}
pos = ((int64_t)cell_sector)<<11;
do_seek(stream, pos);
do {
char buf[2048];
if (dvd_read_sector(stream, stream->priv, buf) < 0) // skip
break;
t = mp_dvdtimetomsec(&d->dsi_pack.dsi_gi.c_eltm);
} while(!t);
tm = dvd_get_current_time(stream, -1);
pos = ((int64_t)tmap_sector)<<11;
do_seek(stream, pos);
//now get current time in terms of the cell+cell time offset
memset(&d->dsi_pack.dsi_gi.c_eltm, 0, sizeof(dvd_time_t));
while(tm <= sec) {
char buf[2048];
if (dvd_read_sector(stream, stream->priv, buf) < 0) // skip
break;
pos += 2048;
tm = dvd_get_current_time(stream, -1);
};
tmap_sector = pos >> 11;
//search closest VOBU sector
k=(vts_file->vts_vobu_admap->last_byte + 1 - VOBU_ADMAP_SIZE)/4; //entries in the vobu admap
for(i=1; i<k; i++) {
if(vts_file->vts_vobu_admap->vobu_start_sectors[i] > tmap_sector)
break;
}
vobu_sector = vts_file->vts_vobu_admap->vobu_start_sectors[i-1];
pos = ((int64_t)vobu_sector) << 11;
do_seek(stream, pos);
return 1;
}
static int control(stream_t *stream,int cmd,void* arg)
{
dvd_priv_t *d = stream->priv;
switch(cmd)
{
case STREAM_CTRL_GET_TIME_LENGTH:
{
*((double *)arg) = (double) mp_get_titleset_length(d->vts_file, d->tt_srpt, d->cur_title)/1000.0;
return 1;
}
case STREAM_CTRL_GET_NUM_TITLES:
{
*((unsigned int *)arg) = d->vmg_file->tt_srpt->nr_of_srpts;
return 1;
}
case STREAM_CTRL_GET_TITLE_LENGTH:
{
int t = *(double *)arg;
if (t < 0 || t >= d->vmg_file->tt_srpt->nr_of_srpts)
break;
if (d->tt_srpt->title[t].title_set_nr !=
d->tt_srpt->title[d->dvd_title].title_set_nr)
break;
*(double *)arg =
mp_get_titleset_length(d->vts_file, d->tt_srpt, t) / 1000.0;
return 1;
}
case STREAM_CTRL_GET_NUM_CHAPTERS:
{
int r;
r = get_num_chapter(d->vts_file, d->tt_srpt, d->cur_title);
if(! r) return STREAM_UNSUPPORTED;
*((unsigned int *)arg) = r;
return 1;
}
case STREAM_CTRL_GET_CHAPTER_TIME:
{
int r;
r = get_chapter_time(d->vts_file, d->tt_srpt, d->cur_title, (double *)arg);
if(! r) return STREAM_UNSUPPORTED;
return 1;
}
case STREAM_CTRL_GET_CURRENT_TITLE:
{
*((unsigned int *)arg) = d->cur_title;
return 1;
}
case STREAM_CTRL_GET_CURRENT_TIME:
{
double tm;
tm = dvd_get_current_time(stream, -1);
if(tm != -1) {
*((double *)arg) = tm;
return 1;
}
break;
}
case STREAM_CTRL_SEEK_TO_TIME:
{
if(dvd_seek_to_time(stream, d->vts_file, *((double*)arg)))
return 1;
break;
}
case STREAM_CTRL_GET_ASPECT_RATIO:
{
*((double *)arg) = !d->vts_file->vtsi_mat->vts_video_attr.display_aspect_ratio ? 4.0/3.0 : 16.0/9.0;
return 1;
}
case STREAM_CTRL_GET_NUM_ANGLES:
{
*((int *)arg) = d->vmg_file->tt_srpt->title[d->dvd_title].nr_of_angles;
return 1;
}
case STREAM_CTRL_GET_ANGLE:
{
*((int *)arg) = d->dvd_angle;
return 1;
}
case STREAM_CTRL_SET_ANGLE:
{
int ang = *((int *)arg);
if(ang>d->vmg_file->tt_srpt->title[d->dvd_title].nr_of_angles || ang<=0)
break;
d->dvd_angle = ang;
d->angle_seek = 1;
return 1;
}
case STREAM_CTRL_GET_LANG:
{
struct stream_lang_req *req = arg;
int lang = 0;
switch(req->type) {
case STREAM_AUDIO:
lang = dvd_lang_from_aid(stream, req->id);
break;
case STREAM_SUB:
lang = dvd_lang_from_sid(stream, req->id);
break;
}
if (!lang)
break;
snprintf(req->name, sizeof(req->name), "%c%c", lang >> 8, lang);
return STREAM_OK;
}
case STREAM_CTRL_GET_DVD_INFO:
{
struct stream_dvd_info_req *req = arg;
memset(req, 0, sizeof(*req));
req->num_subs = dvd_number_of_subs(stream);
memcpy(req->palette, d->cur_pgc->palette, sizeof(req->palette));
return STREAM_OK;
}
case STREAM_CTRL_GET_DISC_NAME:
{
char buffer[128];
if (DVDUDFVolumeInfo(d->dvd, buffer, sizeof(buffer), NULL, 0) < 0 &&
DVDISOVolumeInfo(d->dvd, buffer, sizeof(buffer), NULL, 0) < 0)
break;
if (!buffer[0])
break;
*(char**)arg = talloc_strdup(NULL, buffer);
return STREAM_OK;
}
case STREAM_CTRL_GET_SIZE:
*(int64_t *)arg =
(d->cur_pgc->cell_playback[d->last_cell-1].last_sector)*2048LL;
return STREAM_OK;
}
return STREAM_UNSUPPORTED;
}
static int open_s_internal(stream_t *stream)
{
int k;
dvd_priv_t *d = stream->priv;
struct dvd_opts *opts =
mp_get_config_group(stream, stream->global, &dvd_conf);
d->dvd_angle = opts->angle;
MP_VERBOSE(stream, "URL: %s\n", stream->url);
d->dvd_title = d->cfg_title + 1;
if(1){
//int ret,ret2;
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;
pgc_t *pgc;
/**
* Open the disc.
*/
if(d->cfg_device && d->cfg_device[0])
d->dvd_device_current = d->cfg_device;
else if(opts->device && opts->device[0])
d->dvd_device_current = talloc_strdup(stream, opts->device);
else
d->dvd_device_current = DEFAULT_DVD_DEVICE;
d->dvd_speed = opts->speed;
dvd_set_speed(stream,d->dvd_device_current, d->dvd_speed);
#if defined(__APPLE__) || defined(__DARWIN__)
/* Dynamic DVD drive selection on Darwin */
if(!strcmp(d->dvd_device_current, "/dev/rdiskN")) {
int i;
size_t len = strlen(d->dvd_device_current)+1;
char *temp_device = malloc(len);
for (i = 1; i < 10; i++) {
snprintf(temp_device, len, "/dev/rdisk%d", i);
dvd = DVDOpen(temp_device);
if(!dvd) {
MP_ERR(stream, "Couldn't open DVD device: %s (%s)\n",temp_device,
mp_strerror(errno));
} else {
#if DVDREAD_VERSION <= LIBDVDREAD_VERSION(0,9,4)
dvd_file_t *dvdfile = DVDOpenFile(dvd,d->dvd_title,DVD_READ_INFO_FILE);
if(!dvdfile) {
MP_ERR(stream, "Couldn't open DVD device: %s (%s)\n",temp_device,
mp_strerror(errno));
DVDClose(dvd);
continue;
}
DVDCloseFile(dvdfile);
#endif
break;
}
}
free(temp_device);
if(!dvd) {
return STREAM_UNSUPPORTED;
}
} else
#endif /* defined(__APPLE__) || defined(__DARWIN__) */
{
dvd = DVDOpen(d->dvd_device_current);
if(!dvd) {
MP_ERR(stream, "Couldn't open DVD device: %s (%s)\n",
d->dvd_device_current, mp_strerror(errno));
return STREAM_UNSUPPORTED;
}
}
MP_VERBOSE(stream, "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_ERR(stream, "Can't open VMG info!\n");
DVDClose( dvd );
return STREAM_UNSUPPORTED;
}
tt_srpt = vmg_file->tt_srpt;
/**
* Make sure our title number is valid.
*/
MP_INFO(stream, "There are %d titles on this DVD.\n", tt_srpt->nr_of_srpts );
if(d->dvd_title < 1 || d->dvd_title > tt_srpt->nr_of_srpts) {
MP_ERR(stream, "Invalid DVD title number: %d\n", d->dvd_title);
ifoClose( vmg_file );
DVDClose( dvd );
return STREAM_UNSUPPORTED;
}
--(d->dvd_title); // remap 1.. -> 0..
/**
* Make sure the angle number is valid for this title.
*/
MP_INFO(stream, "There are %d angles in this DVD title.\n", tt_srpt->title[d->dvd_title].nr_of_angles);
if(d->dvd_angle<1 || d->dvd_angle>tt_srpt->title[d->dvd_title].nr_of_angles) {
MP_ERR(stream, "Invalid DVD angle number: %d\n", d->dvd_angle);
goto fail;
}
ttn = tt_srpt->title[d->dvd_title].vts_ttn - 1;
/**
* Load the VTS information for the title set our title is in.
*/
vts_file = ifoOpen( dvd, tt_srpt->title[d->dvd_title].title_set_nr );
if(!vts_file) {
MP_ERR(stream, "Cannot open the IFO file for DVD title %d.\n", tt_srpt->title[d->dvd_title].title_set_nr );
goto fail;
}
/**
* We've got enough info, time to open the title set data.
*/
title = DVDOpenFile(dvd, tt_srpt->title[d->dvd_title].title_set_nr, DVD_READ_TITLE_VOBS);
if(!title) {
MP_ERR(stream, "Cannot open title VOBS (VTS_%02d_1.VOB).\n", tt_srpt->title[d->dvd_title].title_set_nr);
ifoClose( vts_file );
goto fail;
}
MP_VERBOSE(stream, "DVD successfully opened.\n");
// store data
d->dvd=dvd;
d->title=title;
d->vmg_file=vmg_file;
d->tt_srpt=tt_srpt;
d->vts_file=vts_file;
d->cur_title = d->dvd_title;
pgc_id = vts_file->vts_ptt_srpt->title[ttn].ptt[0].pgcn; // local
pgn = vts_file->vts_ptt_srpt->title[ttn].ptt[0].pgn; // local
pgc = vts_file->vts_pgcit ? vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc : NULL;
/**
* Check number of audio channels and types
*/
{
d->nr_of_channels=0;
if(vts_file->vts_pgcit) {
int i;
for(i=0;i<8;i++)
if(pgc->audio_control[i] & 0x8000) {
audio_attr_t * audio = &vts_file->vtsi_mat->vts_audio_attr[i];
int language = 0;
char tmp[] = "unknown";
stream_language_t *audio_stream = &d->audio_streams[d->nr_of_channels];
if(audio->lang_type == 1) {
language=audio->lang_code;
tmp[0]=language>>8;
tmp[1]=language&0xff;
tmp[2]=0;
}
audio_stream->language=language;
audio_stream->id=pgc->audio_control[i] >> 8 & 7;
switch(audio->audio_format) {
case 0: // ac3
audio_stream->id+=FIRST_AC3_AID;
break;
case 6: // dts
audio_stream->id+=FIRST_DTS_AID;
break;
case 2: // mpeg layer 1/2/3
case 3: // mpeg2 ext
audio_stream->id+=FIRST_MPG_AID;
break;
case 4: // lpcm
audio_stream->id+=FIRST_PCM_AID;
break;
}
audio_stream->type=audio->audio_format;
// Pontscho: to my mind, tha channels:
// 1 - stereo
// 5 - 5.1
audio_stream->channels=audio->channels;
MP_INFO(stream, "audio stream: %d 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,
audio_stream->id
);
d->nr_of_channels++;
}
}
MP_INFO(stream, "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(pgc->subp_control[i] & 0x80000000) {
subp_attr_t * subtitle = &vts_file->vtsi_mat->vts_subp_attr[i];
video_attr_t *video = &vts_file->vtsi_mat->vts_video_attr;
int language = 0;
char tmp[] = "unknown";
stream_language_t *sub_stream = &d->subtitles[d->nr_of_subtitles];
if(subtitle->type == 1) {
language=subtitle->lang_code;
tmp[0]=language>>8;
tmp[1]=language&0xff;
tmp[2]=0;
}
sub_stream->language=language;
sub_stream->id=d->nr_of_subtitles;
if(video->display_aspect_ratio == 0) /* 4:3 */
sub_stream->id = pgc->subp_control[i] >> 24 & 31;
else if(video->display_aspect_ratio == 3) /* 16:9 */
sub_stream->id = pgc->subp_control[i] >> 8 & 31;
MP_INFO(stream, "subtitle ( sid ): %d language: %s\n", sub_stream->id, tmp);
d->nr_of_subtitles++;
}
MP_INFO(stream, "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.
*/
d->cur_pgc_idx = pgc_id-1;
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;
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+=d->dvd_angle-1;
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_VERBOSE(stream, "DVD start cell: %d pack: 0x%X-0x%X \n",d->cur_cell,d->cur_pack,d->cell_last_pack);
//assign cell_times_table
d->cell_times_table = malloc(sizeof(unsigned int) * d->cur_pgc->nr_of_cells);
if(d->cell_times_table == NULL)
return STREAM_UNSUPPORTED;
for(k=0; k<d->cur_pgc->nr_of_cells; k++)
d->cell_times_table[k] = mp_dvdtimetomsec(&d->cur_pgc->cell_playback[k].playback_time);
list_chapters(stream, vts_file,tt_srpt,d->dvd_title);
// ... (unimplemented)
// return NULL;
stream->demuxer = "+disc";
stream->lavf_type = "mpeg";
stream->sector_size = 2048;
stream->fill_buffer = fill_buffer;
stream->control = control;
stream->close = stream_dvd_close;
MP_VERBOSE(stream, "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_OK;
fail:
ifoClose(vmg_file);
DVDClose(dvd);
return STREAM_UNSUPPORTED;
}
MP_ERR(stream, "mpv was compiled without DVD support, exiting.\n");
return STREAM_UNSUPPORTED;
}
static int open_s(stream_t *stream)
{
dvd_priv_t *d = talloc_zero(stream, dvd_priv_t);
stream->priv = d;
bstr title, bdevice;
bstr_split_tok(bstr0(stream->path), "/", &title, &bdevice);
if (title.len) {
bstr rest;
d->cfg_title = bstrtoll(title, &rest, 10);
if (rest.len) {
MP_ERR(stream, "number expected: '%.*s'\n", BSTR_P(rest));
return STREAM_ERROR;
}
}
d->cfg_device = bstrto0(d, bdevice);
return open_s_internal(stream);
}
static int ifo_stream_open(stream_t *stream)
{
dvd_priv_t *priv = talloc_zero(stream, dvd_priv_t);
stream->priv = priv;
if (!stream->access_references)
goto unsupported;
char *path = mp_file_get_path(priv, bstr0(stream->url));
if (!path)
goto unsupported;
if (!dvd_probe(path, ".ifo", "DVDVIDEO-VTS"))
goto unsupported;
char *base = mp_basename(path);
// Only accept individual titles - use dvdnav for video_ts.ifo
if (strncasecmp(base, "vts_", 4))
goto unsupported;
if (sscanf(base + 3, "_%02d_", &priv->cfg_title) != 1)
goto unsupported;
priv->cfg_device = bstrto0(priv, mp_dirname(path));
MP_INFO(stream, ".IFO detected. Redirecting to dvdread://\n");
return open_s_internal(stream);
unsupported:
talloc_free(priv);
stream->priv = NULL;
return STREAM_UNSUPPORTED;
}
const stream_info_t stream_info_dvd = {
.name = "dvd",
.open = open_s,
.protocols = (const char*const[]){ "dvdread", NULL },
};
const stream_info_t stream_info_ifo = {
.name = "ifo",
.open = ifo_stream_open,
.protocols = (const char*const[]){ "file", "", NULL },
};
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