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/*
* implementation of VCD IO for OS/2
*
* Copyright (c) 2009 KO Myung-Hun (komh@chollian.net)
*
* 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_OS2_H
#define MPLAYER_VCD_READ_OS2_H
#include "mp_msg.h"
struct __attribute__((packed)) msf {
BYTE bFrame;
BYTE bSecond;
BYTE bMinute;
BYTE bReserved;
};
typedef struct {
HFILE hcd;
struct msf msfCurrent;
int iFirstTrack;
int iLastTrack;
struct msf msfLeadOut;
BYTE abVCDSector[VCD_SECTOR_SIZE];
} mp_vcd_priv_t;
static inline void vcd_set_msf(mp_vcd_priv_t *vcd, unsigned sect)
{
sect += 150;
vcd->msfCurrent.bFrame = sect % 75;
sect = sect / 75;
vcd->msfCurrent.bSecond = sect % 60;
sect = sect / 60;
vcd->msfCurrent.bMinute = sect;
}
static inline unsigned vcd_get_msf(mp_vcd_priv_t *vcd)
{
return vcd->msfCurrent.bFrame +
(vcd->msfCurrent.bSecond + vcd->msfCurrent.bMinute * 60) * 75 - 150;
}
int vcd_seek_to_track(mp_vcd_priv_t *vcd, int track)
{
struct {
UCHAR auchSign[4];
BYTE bTrack;
} __attribute__((packed)) sParam = {{'C', 'D', '0', '1'},};
struct {
struct msf msfStart;
BYTE bControlInfo;
} __attribute__((packed)) sData;
ULONG ulParamLen;
ULONG ulDataLen;
ULONG rc;
sParam.bTrack = track;
rc = DosDevIOCtl(vcd->hcd, IOCTL_CDROMAUDIO, CDROMAUDIO_GETAUDIOTRACK,
&sParam, sizeof(sParam), &ulParamLen,
&sData, sizeof(sData), &ulDataLen);
if (rc) {
mp_msg(MSGT_STREAM, MSGL_ERR, "DosDevIOCtl(GETAUDIOTRACK) = 0x%lx\n", rc);
return -1;
}
vcd->msfCurrent = sData.msfStart;
return VCD_SECTOR_DATA * vcd_get_msf(vcd);
}
static int vcd_get_track_end(mp_vcd_priv_t *vcd, int track)
{
if (track < vcd->iLastTrack)
return vcd_seek_to_track(vcd, track + 1);
vcd->msfCurrent = vcd->msfLeadOut;
return VCD_SECTOR_DATA * vcd_get_msf(vcd);
}
static mp_vcd_priv_t *vcd_read_toc(int fd)
{
mp_vcd_priv_t *vcd;
UCHAR auchParamDisk[4] = {'C', 'D', '0', '1'};
struct {
BYTE bFirstTrack;
BYTE bLastTrack;
struct msf msfLeadOut;
} __attribute__((packed)) sDataDisk;
struct {
UCHAR auchSign[4];
BYTE bTrack;
} __attribute__((packed)) sParamTrack = {{'C', 'D', '0', '1'},};
struct {
struct msf msfStart;
BYTE bControlInfo;
} __attribute__((packed)) sDataTrack;
ULONG ulParamLen;
ULONG ulDataLen;
ULONG rc;
int i, iMinute = 0, iSecond = 0, iFrame = 0;
rc = DosDevIOCtl(fd, IOCTL_CDROMAUDIO, CDROMAUDIO_GETAUDIODISK,
auchParamDisk, sizeof(auchParamDisk), &ulParamLen,
&sDataDisk, sizeof(sDataDisk), &ulDataLen);
if (rc) {
mp_msg(MSGT_OPEN, MSGL_ERR, "DosDevIOCtl(GETAUDIODISK) = 0x%lx\n", rc);
return NULL;
}
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_START_TRACK=%d\n", sDataDisk.bFirstTrack);
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_END_TRACK=%d\n", sDataDisk.bLastTrack);
for (i = sDataDisk.bFirstTrack; i <= sDataDisk.bLastTrack + 1; i++) {
if (i <= sDataDisk.bLastTrack) {
sParamTrack.bTrack = i;
rc = DosDevIOCtl(fd, IOCTL_CDROMAUDIO, CDROMAUDIO_GETAUDIOTRACK,
&sParamTrack, sizeof(sParamTrack), &ulParamLen,
&sDataTrack, sizeof(sDataTrack), &ulDataLen);
if (rc) {
mp_msg(MSGT_OPEN, MSGL_ERR, "DosDevIOCtl(GETAUDIOTRACK) = 0x%lx\n", rc);
return NULL;
}
mp_msg(MSGT_OPEN, MSGL_INFO, "track %02d: adr=%d ctrl=%d %02d:%02d:%02d\n",
i,
sDataTrack.bControlInfo & 0x0F,
sDataTrack.bControlInfo >> 4,
sDataTrack.msfStart.bMinute,
sDataTrack.msfStart.bSecond,
sDataTrack.msfStart.bFrame);
} else
sDataTrack.msfStart = sDataDisk.msfLeadOut;
if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO)) {
if (i > sDataDisk.bFirstTrack) {
iMinute = sDataTrack.msfStart.bMinute - iMinute;
iSecond = sDataTrack.msfStart.bSecond - iSecond;
iFrame = sDataTrack.msfStart.bFrame - iFrame;
if (iFrame < 0) {
iFrame += 75;
iSecond--;
}
if (iSecond < 0) {
iSecond += 60;
iMinute--;
}
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_TRACK_%d_MSF=%02d:%02d:%02d\n",
i - 1, iMinute, iSecond, iFrame);
}
iMinute = sDataTrack.msfStart.bMinute;
iSecond = sDataTrack.msfStart.bSecond;
iFrame = sDataTrack.msfStart.bFrame;
}
}
vcd = calloc(1, sizeof(mp_vcd_priv_t));
vcd->hcd = fd;
vcd->iFirstTrack = sDataDisk.bFirstTrack;
vcd->iLastTrack = sDataDisk.bLastTrack;
vcd->msfLeadOut = sDataDisk.msfLeadOut;
return vcd;
}
static int vcd_end_track(mp_vcd_priv_t* vcd)
{
return vcd->iLastTrack;
}
static int vcd_read(mp_vcd_priv_t *vcd, char *mem)
{
struct {
UCHAR auchSign[4];
BYTE bAddrMode;
USHORT usSectors;
struct msf msfStart;
BYTE bReserved;
BYTE bInterleavedSize;
} __attribute__((packed)) sParam = {{'C', 'D', '0', '1'}, 1, 1,};
ULONG ulParamLen;
ULONG ulDataLen;
ULONG rc;
/* lead-out ? */
if (vcd->msfCurrent.bMinute == vcd->msfLeadOut.bMinute &&
vcd->msfCurrent.bSecond == vcd->msfLeadOut.bSecond &&
vcd->msfCurrent.bFrame == vcd->msfLeadOut.bFrame)
return 0;
sParam.msfStart = vcd->msfCurrent;
rc = DosDevIOCtl(vcd->hcd, IOCTL_CDROMDISK, CDROMDISK_READLONG,
&sParam, sizeof(sParam), &ulParamLen,
vcd->abVCDSector, sizeof(vcd->abVCDSector), &ulDataLen);
if (rc) {
mp_msg(MSGT_STREAM, MSGL_ERR, "DosDevIOCtl(READLONG) = 0x%lx\n", rc);
return 0;
}
memcpy(mem, &vcd->abVCDSector[VCD_SECTOR_OFFS], VCD_SECTOR_DATA);
vcd->msfCurrent.bFrame++;
if (vcd->msfCurrent.bFrame == 75) {
vcd->msfCurrent.bFrame = 0;
vcd->msfCurrent.bSecond++;
if (vcd->msfCurrent.bSecond == 60) {
vcd->msfCurrent.bSecond = 0;
vcd->msfCurrent.bMinute++;
}
}
return VCD_SECTOR_DATA;
}
#endif /* MPLAYER_VCD_READ_OS2_H */
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