mpv/libmpdemux/cdda.c

342 lines
9.1 KiB
C

#include "config.h"
#ifdef HAVE_CDDA
#include "stream.h"
#include "../m_option.h"
#include "../m_struct.h"
#include <stdio.h>
#include <stdlib.h>
#include "demuxer.h"
#include "cdd.h"
static struct cdda_params {
int speed;
int paranoia_mode;
char* generic_dev;
int sector_size;
int search_overlap;
int toc_bias;
int toc_offset;
int no_skip;
char* device;
m_span_t span;
} cdda_dflts = {
-1,
1,
NULL,
0,
-1,
0,
0,
0,
DEFAULT_CDROM_DEVICE,
{ 0, 0 }
};
#define ST_OFF(f) M_ST_OFF(struct cdda_params,f)
m_option_t cdda_params_fields[] = {
{ "speed", ST_OFF(speed), CONF_TYPE_INT, M_OPT_RANGE,1,100, NULL },
{ "paranoia", ST_OFF(paranoia_mode), CONF_TYPE_INT,M_OPT_RANGE, 0, 2, NULL },
{ "generic-dev", ST_OFF(generic_dev), CONF_TYPE_STRING, 0, 0, 0, NULL },
{ "sector-size", ST_OFF(sector_size), CONF_TYPE_INT, M_OPT_RANGE,1,100, NULL },
{ "overlap", ST_OFF(search_overlap), CONF_TYPE_INT, M_OPT_RANGE,0,75, NULL },
{ "toc-bias", ST_OFF(toc_bias), CONF_TYPE_INT, 0, 0, 0, NULL },
{ "toc-offset", ST_OFF(toc_offset), CONF_TYPE_INT, 0, 0, 0, NULL },
{ "noskip", ST_OFF(no_skip), CONF_TYPE_FLAG, 0 , 0, 1, NULL },
{ "skip", ST_OFF(no_skip), CONF_TYPE_FLAG, 0 , 1, 0, NULL },
{ "device", ST_OFF(device), CONF_TYPE_STRING, 0, 0, 0, NULL },
{ "span", ST_OFF(span), CONF_TYPE_OBJ_PARAMS, 0, 0, 0, &m_span_params_def },
/// For url parsing
{ "hostname", ST_OFF(span), CONF_TYPE_OBJ_PARAMS, 0, 0, 0, &m_span_params_def },
{ "port", ST_OFF(speed), CONF_TYPE_INT, M_OPT_RANGE,1,100, NULL },
{ "filename", ST_OFF(device), CONF_TYPE_STRING, 0, 0, 0, NULL },
{NULL, NULL, 0, 0, 0, 0, NULL}
};
static struct m_struct_st stream_opts = {
"cdda",
sizeof(struct cdda_params),
&cdda_dflts,
cdda_params_fields
};
/// We keep these options but now they set the defaults
m_option_t cdda_opts[] = {
{ "speed", &cdda_dflts.speed, CONF_TYPE_INT, M_OPT_RANGE,1,100, NULL },
{ "paranoia", &cdda_dflts.paranoia_mode, CONF_TYPE_INT,M_OPT_RANGE, 0, 2, NULL },
{ "generic-dev", &cdda_dflts.generic_dev, CONF_TYPE_STRING, 0, 0, 0, NULL },
{ "sector-size", &cdda_dflts.sector_size, CONF_TYPE_INT, M_OPT_RANGE,1,100, NULL },
{ "overlap", &cdda_dflts.search_overlap, CONF_TYPE_INT, M_OPT_RANGE,0,75, NULL },
{ "toc-bias", &cdda_dflts.toc_bias, CONF_TYPE_INT, 0, 0, 0, NULL },
{ "toc-offset", &cdda_dflts.toc_offset, CONF_TYPE_INT, 0, 0, 0, NULL },
{ "noskip", &cdda_dflts.no_skip, CONF_TYPE_FLAG, 0 , 0, 1, NULL },
{ "skip", &cdda_dflts.no_skip, CONF_TYPE_FLAG, 0 , 1, 0, NULL },
{ "device", &cdda_dflts.device, CONF_TYPE_STRING, 0, 0, 0, NULL },
{ "span", &cdda_dflts.span, CONF_TYPE_OBJ_PARAMS, 0, 0, 0, &m_span_params_def },
{NULL, NULL, 0, 0, 0, 0, NULL}
};
extern int cddb_resolve(const char *dev, char **xmcd_file);
extern cd_info_t* cddb_parse_xmcd(char *xmcd_file);
static int seek(stream_t* s,off_t pos);
static int fill_buffer(stream_t* s, char* buffer, int max_len);
static void close(stream_t* s);
static int open_cdda(stream_t *st,int m, void* opts, int* file_format) {
struct cdda_params* p = (struct cdda_params*)opts;
int mode = p->paranoia_mode;
int offset = p->toc_offset;
cdrom_drive* cdd = NULL;
cdda_priv* priv;
cd_info_t *cd_info,*cddb_info = NULL;
unsigned int audiolen=0;
int i;
char *xmcd_file = NULL;
if(m != STREAM_READ) {
m_struct_free(&stream_opts,opts);
return STREAM_UNSUPORTED;
}
#ifdef STREAMING
if(strncmp(st->url,"cddb",4) == 0) {
i = cddb_resolve(p->device, &xmcd_file);
if(i == 0) {
cddb_info = cddb_parse_xmcd(xmcd_file);
free(xmcd_file);
}
}
#endif
if(p->generic_dev)
cdd = cdda_identify_scsi(p->generic_dev,p->device,0,NULL);
else
#if defined(__NetBSD__)
cdd = cdda_identify_scsi(p->device,p->device,0,NULL);
#else
cdd = cdda_identify(p->device,0,NULL);
#endif
if(!cdd) {
mp_msg(MSGT_OPEN,MSGL_ERR,"Can't open cdda device\n");
m_struct_free(&stream_opts,opts);
return STREAM_ERROR;
}
cdda_verbose_set(cdd, CDDA_MESSAGE_FORGETIT, CDDA_MESSAGE_FORGETIT);
if(p->sector_size) {
cdd->nsectors = p->sector_size;
cdd->bigbuff = p->sector_size * CD_FRAMESIZE_RAW;
}
if(cdda_open(cdd) != 0) {
mp_msg(MSGT_OPEN,MSGL_ERR,"Can't open disc\n");
cdda_close(cdd);
m_struct_free(&stream_opts,opts);
return STREAM_ERROR;
}
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(p->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(p->speed)
cdda_speed_set(cdd,p->speed);
if(p->span.start)
priv->start_sector = cdda_track_firstsector(cdd,p->span.start);
else
priv->start_sector = cdda_disc_firstsector(cdd);
if(p->span.end) {
int last = cdda_tracks(cdd);
if(p->span.end > last) p->span.end = last;
priv->end_sector = cdda_track_lastsector(cdd,p->span.end);
} else
priv->end_sector = cdda_disc_lastsector(cdd);
priv->cdp = paranoia_init(cdd);
if(priv->cdp == NULL) {
cdda_close(cdd);
free(priv);
cd_info_free(cd_info);
m_struct_free(&stream_opts,opts);
return STREAM_ERROR;
}
if(mode == 0)
mode = PARANOIA_MODE_DISABLE;
else if(mode == 1)
mode = PARANOIA_MODE_OVERLAP;
else
mode = PARANOIA_MODE_FULL;
if(p->no_skip)
mode |= PARANOIA_MODE_NEVERSKIP;
if(p->search_overlap >= 0)
paranoia_overlapset(cdd,p->search_overlap);
paranoia_seek(priv->cdp,priv->start_sector,SEEK_SET);
priv->sector = priv->start_sector;
#ifdef STREAMING
if(cddb_info) {
cd_info_free(cd_info);
priv->cd_info = cddb_info;
cd_info_debug( cddb_info );
}
#endif
st->priv = priv;
st->start_pos = priv->start_sector*CD_FRAMESIZE_RAW;
st->end_pos = priv->end_sector*CD_FRAMESIZE_RAW;
st->type = STREAMTYPE_CDDA;
st->sector_size = CD_FRAMESIZE_RAW;
st->fill_buffer = fill_buffer;
st->seek = seek;
st->close = close;
*file_format = DEMUXER_TYPE_RAWAUDIO;
m_struct_free(&stream_opts,opts);
return STREAM_OK;
}
static void cdparanoia_callback(long inpos, int function) {
}
static int fill_buffer(stream_t* s, char* buffer, int max_len) {
cdda_priv* p = (cdda_priv*)s->priv;
cd_track_t *cd_track;
int16_t * buf;
int i;
buf = paranoia_read(p->cdp,cdparanoia_callback);
p->sector++;
s->pos = p->sector*CD_FRAMESIZE_RAW;
memcpy(buffer,buf,CD_FRAMESIZE_RAW);
if((p->sector < p->start_sector) || (p->sector >= p->end_sector)) {
s->eof = 1;
return 0;
}
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("\n%s\n", cd_track->name );
}
break;
}
}
return CD_FRAMESIZE_RAW;
}
static int seek(stream_t* s,off_t newpos) {
cdda_priv* p = (cdda_priv*)s->priv;
cd_track_t *cd_track;
int sec;
int current_track=0, seeked_track=0;
int i;
s->pos = newpos;
if(s->pos < 0) {
s->eof = 1;
return 0;
}
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("\n%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);
return 1;
}
static void close(stream_t* s) {
cdda_priv* p = (cdda_priv*)s->priv;
paranoia_free(p->cdp);
cdda_close(p->cd);
cd_info_free(p->cd_info);
free(p);
}
stream_info_t stream_info_cdda = {
"CDDA",
"cdda",
"Albeu",
"",
open_cdda,
{ "cdda", "cddb", NULL },
&stream_opts,
1 // Urls are an option string
};
#endif