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mpv/stream/vcd_read_fbsd.h
Uoti Urpala fc6a9e4a3e build: switch to libavutil bswap.h and intreadwrite.h
Remove the private bswap and intreadwrite.h implementations and use
libavutil headers instead.

Originally these headers weren't publicly installed by libavutil at
all. That already changed in 2010, but the pure C bswap version in
installed headers was very inefficient. That was recently (2011-12)
improved and now using the public bswap version probably shouldn't
cause noticeable performance problems, at least if using a new enough
compiler.
2012-02-01 22:46:27 +02:00

267 lines
6.9 KiB
C

/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPLAYER_VCD_READ_FBSD_H
#define MPLAYER_VCD_READ_FBSD_H
#define _XOPEN_SOURCE 500
#include <sys/types.h>
#include <inttypes.h>
#include <unistd.h>
#include <sys/cdio.h>
#include <sys/ioctl.h>
#include <libavutil/intreadwrite.h>
#if defined(__NetBSD__) || defined(__OpenBSD__)
#define VCD_NETBSD 1
#endif
#ifdef VCD_NETBSD
#include <sys/scsiio.h>
#define TOCADDR(te) ((te).data->addr)
#define READ_TOC CDIOREADTOCENTRYS
#else
#include <sys/cdrio.h>
#define TOCADDR(te) ((te).entry.addr)
#define READ_TOC CDIOREADTOCENTRY
#endif
#include "mp_msg.h"
//=================== VideoCD ==========================
#define CDROM_LEADOUT 0xAA
typedef struct {
uint8_t sync [12];
uint8_t header [4];
uint8_t subheader [8];
uint8_t data [2324];
uint8_t spare [4];
} cdsector_t;
#ifdef VCD_NETBSD
typedef struct ioc_read_toc_entry vcd_tocentry;
#else
typedef struct ioc_read_toc_single_entry vcd_tocentry;
#endif
typedef struct mp_vcd_priv_st {
int fd;
vcd_tocentry entry;
#ifdef VCD_NETBSD
struct cd_toc_entry entry_data;
#else
cdsector_t buf;
#endif
struct ioc_toc_header tochdr;
} mp_vcd_priv_t;
static inline void
vcd_set_msf(mp_vcd_priv_t* vcd, unsigned int sect)
{
#ifdef VCD_NETBSD
vcd->entry.data = &vcd->entry_data;
#endif
sect += 150;
TOCADDR(vcd->entry).msf.frame = sect % 75;
sect = sect / 75;
TOCADDR(vcd->entry).msf.second = sect % 60;
sect = sect / 60;
TOCADDR(vcd->entry).msf.minute = sect;
}
static inline void
vcd_inc_msf(mp_vcd_priv_t* vcd)
{
#ifdef VCD_NETBSD
vcd->entry.data = &vcd->entry_data;
#endif
TOCADDR(vcd->entry).msf.frame++;
if (TOCADDR(vcd->entry).msf.frame==75){
TOCADDR(vcd->entry).msf.frame=0;
TOCADDR(vcd->entry).msf.second++;
if (TOCADDR(vcd->entry).msf.second==60){
TOCADDR(vcd->entry).msf.second=0;
TOCADDR(vcd->entry).msf.minute++;
}
}
}
static inline unsigned int
vcd_get_msf(mp_vcd_priv_t* vcd)
{
#ifdef VCD_NETBSD
vcd->entry.data = &vcd->entry_data;
#endif
return TOCADDR(vcd->entry).msf.frame +
(TOCADDR(vcd->entry).msf.second +
TOCADDR(vcd->entry).msf.minute * 60) * 75 - 150;
}
/**
* \brief read a TOC entry
* \param fd device to read from
* \param dst buffer to read data into
* \param nr track number to read info for
* \return 1 on success, 0 on failure
*/
static int
read_toc_entry(mp_vcd_priv_t *vcd, int nr)
{
vcd->entry.address_format = CD_MSF_FORMAT;
#ifdef VCD_NETBSD
vcd->entry.data_len = sizeof(struct cd_toc_entry);
vcd->entry.data = &vcd->entry_data;
vcd->entry.starting_track = nr;
#else
vcd->entry.track = nr;
#endif
if (ioctl(vcd->fd, READ_TOC, &vcd->entry) == -1) {
mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc entry: %s\n",strerror(errno));
return 0;
}
return 1;
}
static int
vcd_seek_to_track(mp_vcd_priv_t* vcd, int track)
{
if (!read_toc_entry(vcd, track))
return -1;
return VCD_SECTOR_DATA * vcd_get_msf(vcd);
}
static int
vcd_get_track_end(mp_vcd_priv_t* vcd, int track)
{
if (!read_toc_entry(vcd,
track < vcd->tochdr.ending_track ? track + 1 : CDROM_LEADOUT))
return -1;
return VCD_SECTOR_DATA * vcd_get_msf(vcd);
}
static mp_vcd_priv_t*
vcd_read_toc(int fd)
{
struct ioc_toc_header tochdr;
mp_vcd_priv_t* vcd;
int i, last_startsect;
if (ioctl(fd, CDIOREADTOCHEADER, &tochdr) == -1) {
mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
return NULL;
}
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_START_TRACK=%d\n", tochdr.starting_track);
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_END_TRACK=%d\n", tochdr.ending_track);
vcd = malloc(sizeof(mp_vcd_priv_t));
vcd->fd = fd;
vcd->tochdr = tochdr;
for (i = tochdr.starting_track; i <= tochdr.ending_track + 1; i++) {
if (!read_toc_entry(vcd,
i <= tochdr.ending_track ? i : CDROM_LEADOUT)) {
free(vcd);
return NULL;
}
if (i <= tochdr.ending_track)
mp_msg(MSGT_OPEN,MSGL_INFO,"track %02d: adr=%d ctrl=%d format=%d %02d:%02d:%02d\n",
#ifdef VCD_NETBSD
(int)vcd->entry.starting_track,
(int)vcd->entry.data->addr_type,
(int)vcd->entry.data->control,
#else
(int)vcd->entry.track,
(int)vcd->entry.entry.addr_type,
(int)vcd->entry.entry.control,
#endif
(int)vcd->entry.address_format,
(int)TOCADDR(vcd->entry).msf.minute,
(int)TOCADDR(vcd->entry).msf.second,
(int)TOCADDR(vcd->entry).msf.frame
);
if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
{
int startsect = vcd_get_msf(vcd);
if (i > tochdr.starting_track)
{
// convert duraion to MSF
vcd_set_msf(vcd, startsect - last_startsect);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_VCD_TRACK_%d_MSF=%02d:%02d:%02d\n",
i - 1,
TOCADDR(vcd->entry).msf.minute,
TOCADDR(vcd->entry).msf.second,
TOCADDR(vcd->entry).msf.frame);
}
last_startsect = startsect;
}
}
return vcd;
}
static int vcd_end_track(mp_vcd_priv_t* vcd)
{
return vcd->tochdr.ending_track;
}
static int
vcd_read(mp_vcd_priv_t* vcd, char *mem)
{
#ifdef VCD_NETBSD
struct scsireq sc;
int lba = vcd_get_msf(vcd);
int blocks;
int rc;
blocks = 1;
memset(&sc, 0, sizeof(sc));
sc.cmd[0] = 0xBE;
sc.cmd[1] = 5 << 2; // mode2/form2
AV_WB32(&sc.cmd[2], lba);
AV_WB24(&sc.cmd[6], blocks);
sc.cmd[9] = 1 << 4; // user data only
sc.cmd[10] = 0; // no subchannel
sc.cmdlen = 12;
sc.databuf = (caddr_t) mem;
sc.datalen = VCD_SECTOR_DATA;
sc.senselen = sizeof(sc.sense);
sc.flags = SCCMD_READ;
sc.timeout = 10000;
rc = ioctl(vcd->fd, SCIOCCOMMAND, &sc);
if (rc == -1) {
mp_msg(MSGT_STREAM,MSGL_ERR,"SCIOCCOMMAND: %s\n",strerror(errno));
return -1;
}
if (sc.retsts || sc.error) {
mp_msg(MSGT_STREAM,MSGL_ERR,"scsi command failed: status %d error %d\n",
sc.retsts,sc.error);
return -1;
}
#else
if (pread(vcd->fd,&vcd->buf,VCD_SECTOR_SIZE,vcd_get_msf(vcd)*VCD_SECTOR_SIZE)
!= VCD_SECTOR_SIZE) return 0; // EOF?
memcpy(mem,vcd->buf.data,VCD_SECTOR_DATA);
#endif
vcd_inc_msf(vcd);
return VCD_SECTOR_DATA;
}
#endif /* MPLAYER_VCD_READ_FBSD_H */