mpv/libmpdemux/cdda.c

250 lines
6.2 KiB
C

#include "config.h"
#ifdef HAVE_CDDA
#include "stream.h"
#include "../cfgparser.h"
#include <stdio.h>
#include <stdlib.h>
#include "cdd.h"
static int speed = -1;
static int paranoia_mode = 1;
static char* generic_dev = NULL;
static int sector_size = 0;
static int search_overlap = -1;
static int toc_bias = 0;
static int toc_offset = 0;
static int no_skip = 0;
config_t cdda_opts[] = {
{ "speed", &speed, CONF_TYPE_INT, CONF_RANGE,1,100, NULL },
{ "paranoia", &paranoia_mode, CONF_TYPE_INT,CONF_RANGE, 0, 2, NULL },
{ "generic-dev", &generic_dev, CONF_TYPE_STRING, 0, 0, 0, NULL },
{ "sector-size", &sector_size, CONF_TYPE_INT, CONF_RANGE,1,100, NULL },
{ "overlap", &search_overlap, CONF_TYPE_INT, CONF_RANGE,0,75, NULL },
{ "toc-bias", &toc_bias, CONF_TYPE_INT, 0, 0, 0, NULL },
{ "toc-offset", &toc_offset, CONF_TYPE_INT, 0, 0, 0, NULL },
{ "noskip", &no_skip, CONF_TYPE_FLAG, 0 , 0, 1, NULL },
{ "skip", &no_skip, CONF_TYPE_FLAG, 0 , 1, 0, NULL },
{NULL, NULL, 0, 0, 0, 0, NULL}
};
stream_t* open_cdda(char* dev,char* track) {
stream_t* st;
int start_track = 0;
int end_track = 0;
int mode = paranoia_mode;
int offset = toc_offset;
cdrom_drive* cdd = NULL;
cdda_priv* priv;
char* end = strchr(track,'-');
cd_info_t *cd_info;
unsigned int audiolen=0;
int i;
if(!end)
start_track = end_track = atoi(track);
else {
int st_len = end - track;
int ed_len = strlen(track) - 1 - st_len;
if(st_len) {
char st[st_len + 1];
strncpy(st,track,st_len);
st[st_len] = '\0';
start_track = atoi(st);
}
if(ed_len) {
char ed[ed_len + 1];
strncpy(ed,end+1,ed_len);
ed[ed_len] = '\0';
end_track = atoi(ed);
}
}
if(generic_dev)
cdd = cdda_identify_scsi(generic_dev,dev,0,NULL);
else
cdd = cdda_identify(dev,0,NULL);
if(!cdd) {
mp_msg(MSGT_OPEN,MSGL_ERR,"Can't open cdda device\n");
return NULL;
}
cdda_verbose_set(cdd, CDDA_MESSAGE_FORGETIT, CDDA_MESSAGE_FORGETIT);
if(sector_size) {
cdd->nsectors = sector_size;
cdd->bigbuff = sector_size * CD_FRAMESIZE_RAW;
}
if(cdda_open(cdd) != 0) {
mp_msg(MSGT_OPEN,MSGL_ERR,"Can't open disc\n");
cdda_close(cdd);
return NULL;
}
cd_info = cd_info_new();
mp_msg(MSGT_OPEN,MSGL_INFO,"Found Audio CD with %d tracks\n",cdda_tracks(cdd));
for(i=0;i<cdd->tracks;i++) {
char track_name[80];
long sec=cdda_track_firstsector(cdd,i+1);
long off=cdda_track_lastsector(cdd,i+1)-sec+1;
sprintf(track_name, "Track %d", i+1);
cd_info_add_track(cd_info, track_name, i+1, (unsigned int)(off/(60*75)), (unsigned int)((off/75)%60), (unsigned int)(off%75), sec, off );
audiolen += off;
}
cd_info->min = (unsigned int)(audiolen/(60*75));
cd_info->sec = (unsigned int)((audiolen/75)%60);
cd_info->msec = (unsigned int)(audiolen%75);
priv = (cdda_priv*)malloc(sizeof(cdda_priv));
memset(priv, 0, sizeof(cdda_priv));
priv->cd = cdd;
priv->cd_info = cd_info;
if(toc_bias)
offset -= cdda_track_firstsector(cdd,1);
if(offset) {
int i;
for(i = 0 ; i < cdd->tracks + 1 ; i++)
cdd->disc_toc[i].dwStartSector += offset;
}
if(speed)
cdda_speed_set(cdd,speed);
if(start_track)
priv->start_sector = cdda_track_firstsector(cdd,start_track);
else
priv->start_sector = cdda_disc_firstsector(cdd);
if(end_track) {
int last = cdda_tracks(cdd);
if(end_track > last) end_track = last;
priv->end_sector = cdda_track_lastsector(cdd,end_track);
} else
priv->end_sector = cdda_disc_lastsector(cdd);
priv->cdp = paranoia_init(cdd);
if(priv->cdp == NULL) {
cdda_close(cdd);
free(priv);
return NULL;
}
if(mode == 0)
mode = PARANOIA_MODE_DISABLE;
else if(mode == 1)
mode = PARANOIA_MODE_OVERLAP;
else
mode = PARANOIA_MODE_FULL;
if(no_skip)
mode |= PARANOIA_MODE_NEVERSKIP;
if(search_overlap >= 0)
paranoia_overlapset(cdd,search_overlap);
paranoia_seek(priv->cdp,priv->start_sector,SEEK_SET);
priv->sector = priv->start_sector;
st = new_stream(-1,STREAMTYPE_CDDA);
st->priv = priv;
st->start_pos = priv->start_sector*CD_FRAMESIZE_RAW;
st->end_pos = priv->end_sector*CD_FRAMESIZE_RAW;
return st;
}
static void cdparanoia_callback(long inpos, int function) {
}
int read_cdda(stream_t* s) {
cdda_priv* p = (cdda_priv*)s->priv;
cd_track_t *cd_track;
int16_t * buf;
unsigned int i;
buf = paranoia_read(p->cdp,cdparanoia_callback);
p->sector++;
s->pos = p->sector*CD_FRAMESIZE_RAW;
memcpy(s->buffer,buf,CD_FRAMESIZE_RAW);
if(p->sector == p->end_sector)
s->eof = 1;
for(i=0;i<p->cd->tracks;i++){
if(p->cd->disc_toc[i].dwStartSector==p->sector-1) {
cd_track = cd_info_get_track(p->cd_info, i+1);
//printf("Track %d, sector=%d\n", i, p->sector-1);
if( cd_track!=NULL ) {
printf("%s\n", cd_track->name );
}
break;
}
}
return CD_FRAMESIZE_RAW;
}
void seek_cdda(stream_t* s) {
cdda_priv* p = (cdda_priv*)s->priv;
cd_track_t *cd_track;
int sec;
int current_track=0, seeked_track=0;
int i;
sec = s->pos/CD_FRAMESIZE_RAW;
//printf("pos: %d, sec: %d ## %d\n", (int)s->pos, (int)sec, CD_FRAMESIZE_RAW);
//printf("sector: %d new: %d\n", p->sector, sec );
for(i=0;i<p->cd->tracks;i++){
printf("trk #%d: %d .. %d\n",i,p->cd->disc_toc[i].dwStartSector,p->cd->disc_toc[i+1].dwStartSector);
if( p->sector>=p->cd->disc_toc[i].dwStartSector && p->sector<p->cd->disc_toc[i+1].dwStartSector ) {
current_track = i;
}
if( sec>=p->cd->disc_toc[i].dwStartSector && sec<p->cd->disc_toc[i+1].dwStartSector ) {
seeked_track = i;
}
}
//printf("current: %d, seeked: %d\n", current_track, seeked_track);
if( current_track!=seeked_track ) {
//printf("Track %d, sector=%d\n", seeked_track, sec);
cd_track = cd_info_get_track(p->cd_info, seeked_track+1);
if( cd_track!=NULL ) {
printf("%s\n", cd_track->name );
}
}
#if 0
if(sec < p->start_sector)
sec = p->start_sector;
else if(sec > p->end_sector)
sec = p->end_sector;
#endif
p->sector = sec;
// s->pos = sec*CD_FRAMESIZE_RAW;
//printf("seek: %d, sec: %d\n", (int)s->pos, sec);
paranoia_seek(p->cdp,sec,SEEK_SET);
}
void close_cdda(stream_t* s) {
cdda_priv* p = (cdda_priv*)s->priv;
paranoia_free(p->cdp);
cdda_close(p->cd);
}
#endif