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
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
#include <sys/types.h>
#include <inttypes.h>
#include "libavutil/intreadwrite.h"
#include <sys/cdio.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
//=================== 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
} 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;
}
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);
}
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;
}
if (!read_toc_entry(vcd,
track < tochdr.ending_track ? track + 1 : CDROM_LEADOUT))
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, 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;
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_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 = 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;
}
#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;
}
|
