1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
#include <sys/types.h>
#ifdef __NetBSD__
#include <sys/inttypes.h>
#endif
#include <sys/cdio.h>
#include <sys/scsiio.h>
#define CDROM_LEADOUT 0xAA
typedef struct mp_vcd_priv_st {
int fd;
struct ioc_read_toc_entry entry;
struct cd_toc_entry entry_data;
} mp_vcd_priv_t;
static inline void
vcd_set_msf(mp_vcd_priv_t* vcd, unsigned int sect)
{
vcd->entry_data.addr.msf.frame = sect % 75;
sect = sect / 75;
vcd->entry_data.addr.msf.second = sect % 60;
sect = sect / 60;
vcd->entry_data.addr.msf.minute = sect;
}
static inline void
vcd_inc_msf(mp_vcd_priv_t* vcd)
{
vcd->entry_data.addr.msf.frame++;
if (vcd->entry_data.addr.msf.frame==75){
vcd->entry_data.addr.msf.frame=0;
vcd->entry_data.addr.msf.second++;
if (vcd->entry_data.addr.msf.second==60){
vcd->entry_data.addr.msf.second=0;
vcd->entry_data.addr.msf.minute++;
}
}
}
static inline unsigned int
vcd_get_msf(mp_vcd_priv_t* vcd)
{
return vcd->entry_data.addr.msf.frame +
(vcd->entry_data.addr.msf.second +
vcd->entry_data.addr.msf.minute * 60) * 75;
}
int
vcd_seek_to_track(mp_vcd_priv_t* vcd, int track)
{
vcd->entry.address_format = CD_MSF_FORMAT;
vcd->entry.starting_track = track;
vcd->entry.data_len = sizeof(struct cd_toc_entry);
vcd->entry.data = &vcd->entry_data;
if (ioctl(vcd->fd, CDIOREADTOCENTRIES, &vcd->entry)) {
mp_msg(MSGT_STREAM,MSGL_ERR,"ioctl dif1: %s\n",strerror(errno));
return -1;
}
return VCD_SECTOR_DATA * vcd_get_msf(vcd);
}
int
vcd_get_track_end(mp_vcd_priv_t* vcd, int track)
{
struct ioc_toc_header tochdr;
if (ioctl(vcd->fd, CDIOREADTOCHEADER, &tochdr) == -1) {
mp_msg(MSGT_STREAM,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
return -1;
}
vcd->entry.address_format = CD_MSF_FORMAT;
vcd->entry.starting_track = track < tochdr.ending_track ? (track + 1) : CDROM_LEADOUT;
vcd->entry.data_len = sizeof(struct cd_toc_entry);
vcd->entry.data = &vcd->entry_data;
if (ioctl(vcd->fd, CDIOREADTOCENTRYS, &vcd->entry)) {
mp_msg(MSGT_STREAM,MSGL_ERR,"ioctl dif2: %s\n",strerror(errno));
return -1;
}
return VCD_SECTOR_DATA * vcd_get_msf(vcd);
}
mp_vcd_priv_t*
vcd_read_toc(int fd)
{
struct ioc_toc_header tochdr;
mp_vcd_priv_t* vcd;
int i, min = 0, sec = 0, frame = 0;
if (ioctl(fd, CDIOREADTOCHEADER, &tochdr) == -1) {
mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
return;
}
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);
for (i = tochdr.starting_track; i <= tochdr.ending_track + 1; i++) {
struct ioc_read_toc_entry tocentry;
struct cd_toc_entry tocentry_data;
tocentry.starting_track = i<=tochdr.ending_track ? i : CDROM_LEADOUT;
tocentry.address_format = CD_MSF_FORMAT;
tocentry.data_len = sizeof(struct cd_toc_entry);
tocentry.data = &tocentry_data;
if (ioctl(fd, CDIOREADTOCENTRYS, &tocentry) == -1) {
mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc entry: %s\n",strerror(errno));
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",
(int) tocentry.starting_track,
(int) tocentry.data->addr_type,
(int) tocentry.data->control,
(int) tocentry.address_format,
(int) tocentry.data->addr.msf.minute,
(int) tocentry.data->addr.msf.second,
(int) tocentry.data->addr.msf.frame
);
if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
{
if (i > tochdr.starting_track)
{
min = tocentry.data->addr.msf.minute - min;
sec = tocentry.data->addr.msf.second - sec;
frame = tocentry.data->addr.msf.frame - frame;
if ( frame < 0 )
{
frame += 75;
sec --;
}
if ( sec < 0 )
{
sec += 60;
min --;
}
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_TRACK_%d_MSF=%02d:%02d:%02d\n", i - 1, min, sec, frame);
}
min = tocentry.data->addr.msf.minute;
sec = tocentry.data->addr.msf.second;
frame = tocentry.data->addr.msf.frame;
}
}
vcd = malloc(sizeof(mp_vcd_priv_t));
vcd->fd = fd;
return vcd;
}
static int
vcd_read(mp_vcd_priv_t* vcd, char *mem)
{
struct scsireq sc;
int lba = vcd_get_msf(vcd);
int blocks;
int sector_type;
int sync, header_code, user_data, edc_ecc, error_field;
int sub_channel;
int rc;
blocks = 1;
sector_type = 5; /* mode2/form2 */
sync = 0;
header_code = 0;
user_data = 1;
edc_ecc = 0;
error_field = 0;
sub_channel = 0;
memset(&sc, 0, sizeof(sc));
sc.cmd[0] = 0xBE;
sc.cmd[1] = (sector_type) << 2;
sc.cmd[2] = (lba >> 24) & 0xff;
sc.cmd[3] = (lba >> 16) & 0xff;
sc.cmd[4] = (lba >> 8) & 0xff;
sc.cmd[5] = lba & 0xff;
sc.cmd[6] = (blocks >> 16) & 0xff;
sc.cmd[7] = (blocks >> 8) & 0xff;
sc.cmd[8] = blocks & 0xff;
sc.cmd[9] = (sync << 7) | (header_code << 5) | (user_data << 4) |
(edc_ecc << 3) | (error_field << 1);
sc.cmd[10] = sub_channel;
sc.cmdlen = 12;
sc.databuf = (caddr_t) mem;
sc.datalen = 2328;
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;
}
vcd_inc_msf(vcd);
return VCD_SECTOR_DATA;
}
|
