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
|
/*
* This file is part of MPlayer.
*
* Original author: Albeu
*
* 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.
*/
#include "config.h"
#if defined(__MINGW32__) || defined(__CYGWIN__)
#include <windows.h>
#endif
#include "common/msg.h"
#include "stream.h"
#include "options/m_option.h"
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#if !defined(__MINGW32__) && !defined(__CYGWIN__)
#include <sys/ioctl.h>
#endif
#include <errno.h>
#include "talloc.h"
#define VCD_SECTOR_SIZE 2352
#define VCD_SECTOR_OFFS 24
#define VCD_SECTOR_DATA 2324
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__NetBSD__) || defined(__OpenBSD__)
#include "vcd_read_fbsd.h"
#elif defined(__APPLE__)
#include "vcd_read_darwin.h"
#elif defined(__MINGW32__) || defined(__CYGWIN__)
#include "vcd_read_win32.h"
#else
#include "vcd_read.h"
#endif
#ifndef vcd_close
#define vcd_close(priv) (close(((mp_vcd_priv_t*)priv)->fd))
#endif
#include "osdep/io.h"
static int fill_buffer(stream_t *s, char* buffer, int max_len){
if(s->pos > s->end_pos) /// don't past end of current track
return 0;
if (max_len < VCD_SECTOR_DATA)
return -1;
return vcd_read(s->priv,buffer);
}
static int seek(stream_t *s,int64_t newpos) {
vcd_set_msf(s->priv,newpos/VCD_SECTOR_DATA);
return 1;
}
static void close_s(stream_t *stream) {
vcd_close(stream->priv);
free(stream->priv);
}
static int open_s(stream_t *stream,int mode)
{
int ret,ret2,f,sect,tmp;
mp_vcd_priv_t* vcd;
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
int bsize = VCD_SECTOR_SIZE;
#endif
#if defined(__MINGW32__) || defined(__CYGWIN__)
HANDLE hd;
char device[20] = "\\\\.\\?:";
#endif
if(mode != STREAM_READ
#if defined(__MINGW32__) || defined(__CYGWIN__)
|| GetVersion() > 0x80000000 // Win9x
#endif
) {
return STREAM_UNSUPPORTED;
}
char *dev = stream->url;
if (strncmp("vcd://", dev, 6) != 0)
return STREAM_UNSUPPORTED;
dev += 6;
if (!dev[0]) {
if(cdrom_device)
dev = cdrom_device;
else
dev = DEFAULT_CDROM_DEVICE;
}
#if defined(__MINGW32__) || defined(__CYGWIN__)
device[4] = dev ? dev[0] : 0;
/* open() can't be used for devices so do it the complicated way */
hd = CreateFile(device, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL);
f = _open_osfhandle((intptr_t)hd, _O_RDONLY);
#else
f=open(dev,O_RDONLY | O_CLOEXEC);
#endif
if(f<0){
MP_ERR(stream, "CD-ROM Device '%s' not found.\n",dev);
return STREAM_ERROR;
}
vcd = vcd_read_toc(stream, f);
if(!vcd) {
MP_ERR(stream, "Failed to get cd toc\n");
close(f);
return STREAM_ERROR;
}
ret2=vcd_get_track_end(vcd,1);
if(ret2<0){
MP_ERR(stream, "%s (get)\n", "Error selecting VCD track.");
close(f);
free(vcd);
return STREAM_ERROR;
}
ret=vcd_seek_to_track(vcd,1);
if(ret<0){
MP_ERR(stream, "%s (seek)\n", "Error selecting VCD track.");
close(f);
free(vcd);
return STREAM_ERROR;
}
/* search forward up to at most 3 seconds to skip leading margin */
sect = ret / VCD_SECTOR_DATA;
for (tmp = sect; tmp < sect + 3 * 75; tmp++) {
char mem[VCD_SECTOR_DATA];
//since MPEG packs are block-aligned we stop discarding sectors if they are non-null
if (vcd_read(vcd, mem) != VCD_SECTOR_DATA || mem[2] || mem[3])
break;
}
MP_DBG(stream, "%d leading sectors skipped\n", tmp - sect);
vcd_set_msf(vcd, tmp);
ret = tmp * VCD_SECTOR_DATA;
MP_VERBOSE(stream, "VCD start byte position: 0x%X end: 0x%X\n",ret,ret2);
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
if (ioctl (f, CDRIOCSETBLOCKSIZE, &bsize) == -1) {
MP_WARN(stream, "Error in CDRIOCSETBLOCKSIZE");
}
#endif
stream->sector_size = VCD_SECTOR_DATA;
stream->start_pos=ret;
stream->end_pos=ret2;
stream->priv = vcd;
stream->fill_buffer = fill_buffer;
stream->seek = seek;
stream->close = close_s;
stream->demuxer = "lavf"; // mpegps ( or "vcd"?)
return STREAM_OK;
}
const stream_info_t stream_info_vcd = {
.name = "vcd",
.open = open_s,
.protocols = (const char*[]){ "vcd", NULL },
};
|
