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 <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <signal.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "stream.h"
extern int verbose; // defined in mplayer.c
#ifdef HAVE_VCD
#ifdef __FreeBSD__
#include "vcd_read_fbsd.h"
#else
#include "vcd_read.h"
#endif
#endif
#ifdef USE_DVDREAD
int dvd_read_sector(void* d,void* p2);
void dvd_seek(void* d,off_t pos);
#endif
//=================== STREAMER =========================
int stream_fill_buffer(stream_t *s){
int len;
if(s->eof){ s->buf_pos=s->buf_len=0; return 0; }
switch(s->type){
case STREAMTYPE_FILE:
case STREAMTYPE_STREAM:
case STREAMTYPE_PLAYLIST:
#ifdef STREAMING
if( s->streaming_ctrl!=NULL ) {
len=s->streaming_ctrl->streaming_read(s->fd,s->buffer,STREAM_BUFFER_SIZE, s->streaming_ctrl);break;
} else {
len=read(s->fd,s->buffer,STREAM_BUFFER_SIZE);break;
}
#else
len=read(s->fd,s->buffer,STREAM_BUFFER_SIZE);break;
#endif
#ifdef HAVE_VCD
case STREAMTYPE_VCD:
#ifdef VCD_CACHE
len=vcd_cache_read(s->fd,s->buffer);break;
#else
len=vcd_read(s->fd,s->buffer);break;
#endif
#endif
#ifdef USE_DVDREAD
case STREAMTYPE_DVD: {
off_t pos=dvd_read_sector(s->priv,s->buffer);
if(pos>=0){
len=2048; // full sector
s->pos=2048*pos-len;
} else len=-1; // error
break;
}
#endif
#ifdef USE_TV
case STREAMTYPE_TV:
{
len = 0;
break;
}
#endif
default: len=0;
}
if(len<=0){ s->eof=1; s->buf_pos=s->buf_len=0; return 0; }
s->buf_pos=0;
s->buf_len=len;
s->pos+=len;
// printf("[%d]",len);fflush(stdout);
return len;
}
int stream_seek_long(stream_t *s,off_t pos){
off_t newpos;
// if(verbose>=3) printf("seek_long to 0x%X\n",(unsigned int)pos);
s->buf_pos=s->buf_len=0;
switch(s->type){
case STREAMTYPE_FILE:
case STREAMTYPE_STREAM:
#ifdef _LARGEFILE_SOURCE
newpos=pos&(~((long long)STREAM_BUFFER_SIZE-1));break;
#else
newpos=pos&(~(STREAM_BUFFER_SIZE-1));break;
#endif
case STREAMTYPE_VCD:
newpos=(pos/VCD_SECTOR_DATA)*VCD_SECTOR_DATA;break;
case STREAMTYPE_DVD:
newpos=pos/2048; newpos*=2048; break;
}
if(verbose>=3){
#ifdef _LARGEFILE_SOURCE
printf("s->pos=%llX newpos=%llX new_bufpos=%llX buflen=%X \n",
(long long)s->pos,(long long)newpos,(long long)pos,s->buf_len);
#else
printf("s->pos=%X newpos=%X new_bufpos=%X buflen=%X \n",
(unsigned int)s->pos,newpos,pos,s->buf_len);
#endif
}
pos-=newpos;
if(newpos==0 || newpos!=s->pos){
switch(s->type){
case STREAMTYPE_FILE:
s->pos=newpos; // real seek
if(lseek(s->fd,s->pos,SEEK_SET)<0) s->eof=1;
break;
#ifdef HAVE_VCD
case STREAMTYPE_VCD:
s->pos=newpos; // real seek
#ifdef VCD_CACHE
vcd_cache_seek(s->pos/VCD_SECTOR_DATA);
#else
vcd_set_msf(s->pos/VCD_SECTOR_DATA);
#endif
break;
#endif
#ifdef USE_DVDREAD
case STREAMTYPE_DVD:
s->pos=newpos; // real seek
dvd_seek(s->priv,s->pos/2048);
break;
#endif
case STREAMTYPE_STREAM:
//s->pos=newpos; // real seek
// Some streaming protocol allow to seek backward and forward
// A function call that return -1 can tell that the protocol
// doesn't support seeking.
#ifdef STREAMING
if( s->streaming_ctrl!=NULL ) {
if( s->streaming_ctrl->streaming_seek( s->fd, pos, s->streaming_ctrl )<0 ) {
mp_msg(MSGT_STREAM,MSGL_INFO,"Stream not seekable!\n");
return 1;
}
}
#else
if(newpos<s->pos){
mp_msg(MSGT_STREAM,MSGL_INFO,"Cannot seek backward in linear streams!\n");
return 1;
}
while(s->pos<newpos){
if(stream_fill_buffer(s)<=0) break; // EOF
}
#endif
break;
#ifdef USE_TV
case STREAMTYPE_TV:
s->pos=newpos; /* no sense */
break;
#endif
}
// putchar('.');fflush(stdout);
//} else {
// putchar('%');fflush(stdout);
}
stream_fill_buffer(s);
if(pos>=0 && pos<=s->buf_len){
s->buf_pos=pos; // byte position in sector
return 1;
}
// if(pos==s->buf_len) printf("XXX Seek to last byte of file -> EOF\n");
#ifdef _LARGEFILE_SOURCE
mp_msg(MSGT_STREAM,MSGL_V,"stream_seek: WARNING! Can't seek to 0x%llX !\n",(long long)(pos+newpos));
#else
mp_msg(MSGT_STREAM,MSGL_V,"stream_seek: WARNING! Can't seek to 0x%X !\n",(pos+newpos));
#endif
return 0;
}
void stream_reset(stream_t *s){
if(s->eof){
s->pos=0; //ftell(f);
// s->buf_pos=s->buf_len=0;
s->eof=0;
}
//stream_seek(s,0);
}
stream_t* new_memory_stream(unsigned char* data,int len){
stream_t *s=malloc(sizeof(stream_t)+len);
s->fd=-1;
s->type=STREAMTYPE_MEMORY;
s->buf_pos=0; s->buf_len=len;
s->start_pos=0; s->end_pos=len;
stream_reset(s);
s->pos=len;
memcpy(s->buffer,data,len);
return s;
}
stream_t* new_stream(int fd,int type){
stream_t *s=malloc(sizeof(stream_t));
if(s==NULL) return NULL;
memset(s,0,sizeof(stream_t));
s->fd=fd;
s->type=type;
s->buf_pos=s->buf_len=0;
s->start_pos=s->end_pos=0;
s->priv=NULL;
s->cache_pid=0;
stream_reset(s);
return s;
}
void free_stream(stream_t *s){
printf("\n*** free_stream() called ***\n");
if(s->cache_pid) kill(s->cache_pid,SIGTERM);
if(s->priv) free(s->priv);
free(s);
}
|
