mirror of
https://github.com/mpv-player/mpv
synced 2024-09-12 23:45:53 +02:00
fc6a9e4a3e
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.
267 lines
6.9 KiB
C
267 lines
6.9 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPLAYER_VCD_READ_FBSD_H
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#define MPLAYER_VCD_READ_FBSD_H
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#define _XOPEN_SOURCE 500
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#include <sys/types.h>
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#include <inttypes.h>
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#include <unistd.h>
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#include <sys/cdio.h>
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#include <sys/ioctl.h>
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#include <libavutil/intreadwrite.h>
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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#define VCD_NETBSD 1
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#endif
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#ifdef VCD_NETBSD
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#include <sys/scsiio.h>
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#define TOCADDR(te) ((te).data->addr)
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#define READ_TOC CDIOREADTOCENTRYS
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#else
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#include <sys/cdrio.h>
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#define TOCADDR(te) ((te).entry.addr)
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#define READ_TOC CDIOREADTOCENTRY
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#endif
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#include "mp_msg.h"
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//=================== VideoCD ==========================
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#define CDROM_LEADOUT 0xAA
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typedef struct {
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uint8_t sync [12];
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uint8_t header [4];
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uint8_t subheader [8];
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uint8_t data [2324];
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uint8_t spare [4];
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} cdsector_t;
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#ifdef VCD_NETBSD
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typedef struct ioc_read_toc_entry vcd_tocentry;
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#else
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typedef struct ioc_read_toc_single_entry vcd_tocentry;
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#endif
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typedef struct mp_vcd_priv_st {
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int fd;
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vcd_tocentry entry;
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#ifdef VCD_NETBSD
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struct cd_toc_entry entry_data;
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#else
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cdsector_t buf;
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#endif
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struct ioc_toc_header tochdr;
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} mp_vcd_priv_t;
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static inline void
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vcd_set_msf(mp_vcd_priv_t* vcd, unsigned int sect)
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{
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#ifdef VCD_NETBSD
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vcd->entry.data = &vcd->entry_data;
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#endif
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sect += 150;
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TOCADDR(vcd->entry).msf.frame = sect % 75;
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sect = sect / 75;
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TOCADDR(vcd->entry).msf.second = sect % 60;
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sect = sect / 60;
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TOCADDR(vcd->entry).msf.minute = sect;
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}
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static inline void
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vcd_inc_msf(mp_vcd_priv_t* vcd)
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{
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#ifdef VCD_NETBSD
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vcd->entry.data = &vcd->entry_data;
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#endif
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TOCADDR(vcd->entry).msf.frame++;
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if (TOCADDR(vcd->entry).msf.frame==75){
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TOCADDR(vcd->entry).msf.frame=0;
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TOCADDR(vcd->entry).msf.second++;
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if (TOCADDR(vcd->entry).msf.second==60){
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TOCADDR(vcd->entry).msf.second=0;
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TOCADDR(vcd->entry).msf.minute++;
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}
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}
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}
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static inline unsigned int
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vcd_get_msf(mp_vcd_priv_t* vcd)
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{
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#ifdef VCD_NETBSD
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vcd->entry.data = &vcd->entry_data;
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#endif
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return TOCADDR(vcd->entry).msf.frame +
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(TOCADDR(vcd->entry).msf.second +
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TOCADDR(vcd->entry).msf.minute * 60) * 75 - 150;
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}
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/**
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* \brief read a TOC entry
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* \param fd device to read from
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* \param dst buffer to read data into
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* \param nr track number to read info for
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* \return 1 on success, 0 on failure
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*/
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static int
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read_toc_entry(mp_vcd_priv_t *vcd, int nr)
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{
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vcd->entry.address_format = CD_MSF_FORMAT;
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#ifdef VCD_NETBSD
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vcd->entry.data_len = sizeof(struct cd_toc_entry);
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vcd->entry.data = &vcd->entry_data;
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vcd->entry.starting_track = nr;
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#else
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vcd->entry.track = nr;
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#endif
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if (ioctl(vcd->fd, READ_TOC, &vcd->entry) == -1) {
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mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc entry: %s\n",strerror(errno));
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return 0;
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}
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return 1;
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}
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static int
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vcd_seek_to_track(mp_vcd_priv_t* vcd, int track)
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{
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if (!read_toc_entry(vcd, track))
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return -1;
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return VCD_SECTOR_DATA * vcd_get_msf(vcd);
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}
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static int
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vcd_get_track_end(mp_vcd_priv_t* vcd, int track)
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{
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if (!read_toc_entry(vcd,
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track < vcd->tochdr.ending_track ? track + 1 : CDROM_LEADOUT))
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return -1;
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return VCD_SECTOR_DATA * vcd_get_msf(vcd);
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}
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static mp_vcd_priv_t*
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vcd_read_toc(int fd)
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{
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struct ioc_toc_header tochdr;
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mp_vcd_priv_t* vcd;
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int i, last_startsect;
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if (ioctl(fd, CDIOREADTOCHEADER, &tochdr) == -1) {
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mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
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return NULL;
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}
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_START_TRACK=%d\n", tochdr.starting_track);
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_END_TRACK=%d\n", tochdr.ending_track);
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vcd = malloc(sizeof(mp_vcd_priv_t));
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vcd->fd = fd;
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vcd->tochdr = tochdr;
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for (i = tochdr.starting_track; i <= tochdr.ending_track + 1; i++) {
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if (!read_toc_entry(vcd,
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i <= tochdr.ending_track ? i : CDROM_LEADOUT)) {
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free(vcd);
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return NULL;
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}
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if (i <= tochdr.ending_track)
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mp_msg(MSGT_OPEN,MSGL_INFO,"track %02d: adr=%d ctrl=%d format=%d %02d:%02d:%02d\n",
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#ifdef VCD_NETBSD
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(int)vcd->entry.starting_track,
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(int)vcd->entry.data->addr_type,
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(int)vcd->entry.data->control,
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#else
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(int)vcd->entry.track,
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(int)vcd->entry.entry.addr_type,
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(int)vcd->entry.entry.control,
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#endif
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(int)vcd->entry.address_format,
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(int)TOCADDR(vcd->entry).msf.minute,
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(int)TOCADDR(vcd->entry).msf.second,
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(int)TOCADDR(vcd->entry).msf.frame
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);
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if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
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{
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int startsect = vcd_get_msf(vcd);
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if (i > tochdr.starting_track)
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{
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// convert duraion to MSF
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vcd_set_msf(vcd, startsect - last_startsect);
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mp_msg(MSGT_IDENTIFY, MSGL_INFO,
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"ID_VCD_TRACK_%d_MSF=%02d:%02d:%02d\n",
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i - 1,
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TOCADDR(vcd->entry).msf.minute,
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TOCADDR(vcd->entry).msf.second,
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TOCADDR(vcd->entry).msf.frame);
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}
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last_startsect = startsect;
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}
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}
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return vcd;
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}
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static int vcd_end_track(mp_vcd_priv_t* vcd)
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{
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return vcd->tochdr.ending_track;
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}
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static int
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vcd_read(mp_vcd_priv_t* vcd, char *mem)
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{
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#ifdef VCD_NETBSD
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struct scsireq sc;
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int lba = vcd_get_msf(vcd);
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int blocks;
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int rc;
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blocks = 1;
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memset(&sc, 0, sizeof(sc));
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sc.cmd[0] = 0xBE;
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sc.cmd[1] = 5 << 2; // mode2/form2
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AV_WB32(&sc.cmd[2], lba);
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AV_WB24(&sc.cmd[6], blocks);
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sc.cmd[9] = 1 << 4; // user data only
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sc.cmd[10] = 0; // no subchannel
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sc.cmdlen = 12;
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sc.databuf = (caddr_t) mem;
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sc.datalen = VCD_SECTOR_DATA;
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sc.senselen = sizeof(sc.sense);
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sc.flags = SCCMD_READ;
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sc.timeout = 10000;
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rc = ioctl(vcd->fd, SCIOCCOMMAND, &sc);
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if (rc == -1) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"SCIOCCOMMAND: %s\n",strerror(errno));
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return -1;
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}
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if (sc.retsts || sc.error) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"scsi command failed: status %d error %d\n",
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sc.retsts,sc.error);
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return -1;
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}
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#else
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if (pread(vcd->fd,&vcd->buf,VCD_SECTOR_SIZE,vcd_get_msf(vcd)*VCD_SECTOR_SIZE)
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!= VCD_SECTOR_SIZE) return 0; // EOF?
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memcpy(mem,vcd->buf.data,VCD_SECTOR_DATA);
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#endif
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vcd_inc_msf(vcd);
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return VCD_SECTOR_DATA;
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}
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#endif /* MPLAYER_VCD_READ_FBSD_H */
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