mpv/libmpdemux/cdda.c

208 lines
4.6 KiB
C

#include "config.h"
#ifdef HAVE_CDDA
#include "stream.h"
#include "../cfgparser.h"
#include <cdda_interface.h>
#include <cdda_paranoia.h>
#include <stdio.h>
#include <stdlib.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;
static 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}
};
static config_t cdda_conf[] = {
{ "cdda", &cdda_opts, CONF_TYPE_SUBCONFIG, 0, 0, 0, NULL},
{ NULL,NULL, 0, 0, 0, 0, NULL}
};
void cdda_register_options(m_config_t* cfg) {
m_config_register_options(cfg,cdda_conf);
}
typedef struct {
cdrom_drive* cd;
cdrom_paranoia* cdp;
int sector;
int start_sector;
int end_sector;
} cdda_priv;
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,'-');
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;
}
priv = (cdda_priv*)malloc(sizeof(cdda_priv));
priv->cd = cdd;
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;
int16_t * buf;
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;
return CD_FRAMESIZE_RAW;
}
void seek_cdda(stream_t* s) {
cdda_priv* p = (cdda_priv*)s->priv;
int sec = s->pos/CD_FRAMESIZE_RAW;
if(sec < p->start_sector)
sec = p->start_sector;
else if(sec > p->end_sector)
sec = p->end_sector;
p->sector = sec;
s->pos = sec*CD_FRAMESIZE_RAW;
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