mirror of
https://github.com/mpv-player/mpv
synced 2024-12-26 17:12:36 +00:00
259 lines
7.4 KiB
C
259 lines
7.4 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_H
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#define MPLAYER_VCD_READ_H
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/ioctl.h>
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#include "mp_msg.h"
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#include "stream.h"
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#include "ffmpeg_files/intreadwrite.h"
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//=================== VideoCD ==========================
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#if defined(__linux__) || defined(sun) || defined(__bsdi__)
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typedef struct mp_vcd_priv_st mp_vcd_priv_t;
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#if defined(__linux__)
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#include <linux/cdrom.h>
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#elif defined(sun)
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#include <sys/cdio.h>
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static int sun_vcd_read(mp_vcd_priv_t*, int*);
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#elif defined(__bsdi__)
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#include <dvd.h>
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#endif
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struct mp_vcd_priv_st {
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int fd;
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struct cdrom_tocentry entry;
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char buf[VCD_SECTOR_SIZE];
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struct cdrom_tochdr tochdr;
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};
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static inline void vcd_set_msf(mp_vcd_priv_t* vcd, unsigned int sect){
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sect += 150;
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vcd->entry.cdte_addr.msf.frame=sect%75;
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sect=sect/75;
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vcd->entry.cdte_addr.msf.second=sect%60;
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sect=sect/60;
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vcd->entry.cdte_addr.msf.minute=sect;
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}
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static inline unsigned int vcd_get_msf(mp_vcd_priv_t* vcd){
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return vcd->entry.cdte_addr.msf.frame +
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(vcd->entry.cdte_addr.msf.second+
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vcd->entry.cdte_addr.msf.minute*60)*75 - 150;
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}
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static int vcd_seek_to_track(mp_vcd_priv_t* vcd, int track)
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{
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vcd->entry.cdte_format = CDROM_MSF;
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vcd->entry.cdte_track = track;
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if (ioctl(vcd->fd, CDROMREADTOCENTRY, &vcd->entry)) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"ioctl dif1: %s\n",strerror(errno));
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return -1;
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}
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return VCD_SECTOR_DATA*vcd_get_msf(vcd);
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}
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static int vcd_get_track_end(mp_vcd_priv_t* vcd,int track){
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vcd->entry.cdte_format = CDROM_MSF;
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vcd->entry.cdte_track = track<vcd->tochdr.cdth_trk1?(track+1):CDROM_LEADOUT;
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if (ioctl(vcd->fd, CDROMREADTOCENTRY, &vcd->entry)) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"ioctl dif2: %s\n",strerror(errno));
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return -1;
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}
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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* vcd_read_toc(int fd){
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struct cdrom_tochdr tochdr;
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mp_vcd_priv_t* vcd;
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int i, min = 0, sec = 0, frame = 0;
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if (ioctl(fd,CDROMREADTOCHDR,&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.cdth_trk0);
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_END_TRACK=%d\n", tochdr.cdth_trk1);
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for (i=tochdr.cdth_trk0 ; i<=tochdr.cdth_trk1 + 1; i++){
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struct cdrom_tocentry tocentry;
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tocentry.cdte_track = i<=tochdr.cdth_trk1 ? i : CDROM_LEADOUT;
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tocentry.cdte_format = CDROM_MSF;
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if (ioctl(fd,CDROMREADTOCENTRY,&tocentry)==-1) {
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mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc entry: %s\n",strerror(errno));
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return NULL;
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}
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if (i<=tochdr.cdth_trk1)
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mp_msg(MSGT_OPEN,MSGL_INFO,"track %02d: adr=%d ctrl=%d format=%d %02d:%02d:%02d mode: %d\n",
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(int)tocentry.cdte_track,
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(int)tocentry.cdte_adr,
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(int)tocentry.cdte_ctrl,
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(int)tocentry.cdte_format,
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(int)tocentry.cdte_addr.msf.minute,
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(int)tocentry.cdte_addr.msf.second,
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(int)tocentry.cdte_addr.msf.frame,
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(int)tocentry.cdte_datamode
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);
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if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
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{
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if (i > tochdr.cdth_trk0)
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{
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min = tocentry.cdte_addr.msf.minute - min;
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sec = tocentry.cdte_addr.msf.second - sec;
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frame = tocentry.cdte_addr.msf.frame - frame;
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if ( frame < 0 )
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{
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frame += 75;
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sec --;
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}
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if ( sec < 0 )
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{
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sec += 60;
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min --;
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}
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_TRACK_%d_MSF=%02d:%02d:%02d\n", i - 1, min, sec, frame);
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}
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min = tocentry.cdte_addr.msf.minute;
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sec = tocentry.cdte_addr.msf.second;
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frame = tocentry.cdte_addr.msf.frame;
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}
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}
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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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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.cdth_trk1;
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}
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static int vcd_read(mp_vcd_priv_t* vcd,char *mem){
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#if defined(__linux__) || defined(__bsdi__)
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memcpy(vcd->buf,&vcd->entry.cdte_addr.msf,sizeof(struct cdrom_msf));
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if(ioctl(vcd->fd,CDROMREADRAW,vcd->buf)==-1) return 0; // EOF?
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memcpy(mem,&vcd->buf[VCD_SECTOR_OFFS],VCD_SECTOR_DATA);
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#elif defined(sun)
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{
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int offset;
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if (sun_vcd_read(vcd, &offset) <= 0) return 0;
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memcpy(mem,&vcd->buf[offset],VCD_SECTOR_DATA);
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}
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#endif
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vcd->entry.cdte_addr.msf.frame++;
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if (vcd->entry.cdte_addr.msf.frame==75){
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vcd->entry.cdte_addr.msf.frame=0;
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vcd->entry.cdte_addr.msf.second++;
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if (vcd->entry.cdte_addr.msf.second==60){
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vcd->entry.cdte_addr.msf.second=0;
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vcd->entry.cdte_addr.msf.minute++;
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}
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}
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return VCD_SECTOR_DATA;
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}
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#ifdef sun
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#include <sys/scsi/generic/commands.h>
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#include <sys/scsi/impl/uscsi.h>
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#define SUN_XAREAD 1 /*fails on atapi drives*/
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#define SUN_MODE2READ 2 /*fails on atapi drives*/
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#define SUN_SCSIREAD 3
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#define SUN_VCDREAD SUN_SCSIREAD
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static int sun_vcd_read(mp_vcd_priv_t* vcd, int *offset)
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{
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#if SUN_VCDREAD == SUN_XAREAD
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struct cdrom_cdxa cdxa;
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cdxa.cdxa_addr = vcd_get_msf(vcd);
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cdxa.cdxa_length = 1;
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cdxa.cdxa_data = vcd->buf;
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cdxa.cdxa_format = CDROM_XA_SECTOR_DATA;
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if(ioctl(vcd->fd,CDROMCDXA,&cdxa)==-1) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"CDROMCDXA: %s\n",strerror(errno));
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return 0;
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}
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*offset = 0;
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#elif SUN_VCDREAD == SUN_MODE2READ
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struct cdrom_read cdread;
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cdread.cdread_lba = 4*vcd_get_msf(vcd);
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cdread.cdread_bufaddr = vcd->buf;
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cdread.cdread_buflen = 2336;
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if(ioctl(vcd->fd,CDROMREADMODE2,&cdread)==-1) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"CDROMREADMODE2: %s\n",strerror(errno));
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return 0;
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}
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*offset = 8;
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#elif SUN_VCDREAD == SUN_SCSIREAD
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struct uscsi_cmd sc;
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union scsi_cdb cdb;
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int lba = vcd_get_msf(vcd);
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int blocks = 1;
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memset(&cdb, 0, sizeof(cdb));
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memset(&sc, 0, sizeof(sc));
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cdb.scc_cmd = 0xBE;
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cdb.cdb_opaque[1] = 5 << 2; // mode2 / form2
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AV_WB32(&cdb.cdb_opaque[2], lba);
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AV_WB24(&cdb.cdb_opaque[6], blocks);
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cdb.cdb_opaque[9] = 1 << 4; // user data only
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cdb.cdb_opaque[10] = 0; // subchannel
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sc.uscsi_cdb = (caddr_t)&cdb;
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sc.uscsi_cdblen = 12;
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sc.uscsi_bufaddr = vcd->buf;
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sc.uscsi_buflen = 2336;
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sc.uscsi_flags = USCSI_ISOLATE | USCSI_READ;
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sc.uscsi_timeout = 20;
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if (ioctl(vcd->fd, USCSICMD, &sc)) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"USCSICMD: READ CD: %s\n",strerror(errno));
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return -1;
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}
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if (sc.uscsi_status) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"scsi command failed with status %d\n", sc.uscsi_status);
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return -1;
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}
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*offset = 0;
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return 1;
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#else
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#error SUN_VCDREAD
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#endif
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}
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#endif /*sun*/
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#else /* __linux__ || sun || __bsdi__ */
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#error vcd is not yet supported on this arch...
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#endif
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#endif /* MPLAYER_VCD_READ_H */
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