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
|
/*
* This file is part of mpv.
*
* mpv 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.
*
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include "common/common.h"
#include "options/options.h"
#include "common/msg.h"
#include "common/playlist.h"
#include "options/path.h"
#include "stream/stream.h"
#include "demux.h"
#define PROBE_SIZE (8 * 1024)
struct pl_parser {
struct mp_log *log;
struct stream *s;
char buffer[8 * 1024];
int utf16;
struct playlist *pl;
bool error;
bool probing;
bool force;
};
static char *pl_get_line0(struct pl_parser *p)
{
char *res = stream_read_line(p->s, p->buffer, sizeof(p->buffer), p->utf16);
if (res) {
int len = strlen(res);
if (len > 0 && res[len - 1] == '\n')
res[len - 1] = '\0';
} else {
p->error |= !p->s->eof;
}
return res;
}
static bstr pl_get_line(struct pl_parser *p)
{
return bstr0(pl_get_line0(p));
}
static void pl_add(struct pl_parser *p, bstr entry)
{
char *s = bstrto0(NULL, entry);
playlist_add_file(p->pl, s);
talloc_free(s);
}
static bool pl_eof(struct pl_parser *p)
{
return p->error || p->s->eof;
}
static int parse_m3u(struct pl_parser *p)
{
bstr line = bstr_strip(pl_get_line(p));
if (!bstr_equals0(line, "#EXTM3U"))
return -1;
if (p->probing)
return 0;
while (!pl_eof(p)) {
line = bstr_strip(pl_get_line(p));
if (line.len == 0 || bstr_startswith0(line, "#"))
continue;
pl_add(p, line);
}
return 0;
}
static int parse_ref_init(struct pl_parser *p)
{
bstr line = bstr_strip(pl_get_line(p));
if (!bstr_equals0(line, "[Reference]"))
return -1;
while (!pl_eof(p)) {
line = bstr_strip(pl_get_line(p));
if (bstr_case_startswith(line, bstr0("Ref"))) {
bstr_split_tok(line, "=", &(bstr){0}, &line);
if (line.len)
pl_add(p, line);
}
}
return 0;
}
static int parse_mov_rtsptext(struct pl_parser *p)
{
bstr line = pl_get_line(p);
if (!bstr_eatstart(&line, bstr0("RTSPtext")))
return -1;
if (p->probing)
return 0;
line = bstr_strip(line);
do {
if (bstr_case_startswith(line, bstr0("rtsp://"))) {
pl_add(p, line);
return 0;
}
} while (!pl_eof(p) && (line = bstr_strip(pl_get_line(p))).len);
return -1;
}
static int parse_pls(struct pl_parser *p)
{
bstr line = {0};
while (!line.len && !pl_eof(p))
line = bstr_strip(pl_get_line(p));
if (bstrcasecmp0(line, "[playlist]") != 0)
return -1;
if (p->probing)
return 0;
while (!pl_eof(p)) {
line = bstr_strip(pl_get_line(p));
bstr key, value;
if (bstr_split_tok(line, "=", &key, &value) &&
bstr_case_startswith(key, bstr0("File")))
{
pl_add(p, value);
}
}
return 0;
}
static int parse_txt(struct pl_parser *p)
{
if (!p->force)
return -1;
if (p->probing)
return 0;
MP_WARN(p, "Reading plaintext playlist.\n");
while (!pl_eof(p)) {
bstr line = bstr_strip(pl_get_line(p));
if (line.len == 0)
continue;
pl_add(p, line);
}
return 0;
}
struct pl_format {
const char *name;
int (*parse)(struct pl_parser *p);
};
static const struct pl_format formats[] = {
{"m3u", parse_m3u},
{"ini", parse_ref_init},
{"mov", parse_mov_rtsptext},
{"pls", parse_pls},
{"txt", parse_txt},
};
static const struct pl_format *probe_pl(struct pl_parser *p)
{
int64_t start = stream_tell(p->s);
for (int n = 0; n < MP_ARRAY_SIZE(formats); n++) {
const struct pl_format *fmt = &formats[n];
stream_seek(p->s, start);
if (fmt->parse(p) >= 0)
return fmt;
}
return NULL;
}
static int open_file(struct demuxer *demuxer, enum demux_check check)
{
bool force = check < DEMUX_CHECK_UNSAFE || check == DEMUX_CHECK_REQUEST;
struct pl_parser *p = talloc_zero(NULL, struct pl_parser);
p->log = demuxer->log;
p->pl = talloc_zero(p, struct playlist);
bstr probe_buf = stream_peek(demuxer->stream, PROBE_SIZE);
p->s = open_memory_stream(probe_buf.start, probe_buf.len);
p->utf16 = stream_skip_bom(p->s);
p->force = force;
p->probing = true;
const struct pl_format *fmt = probe_pl(p);
free_stream(p->s);
playlist_clear(p->pl);
if (!fmt) {
talloc_free(p);
return -1;
}
p->probing = false;
p->error = false;
p->s = demuxer->stream;
p->utf16 = stream_skip_bom(p->s);
bool ok = fmt->parse(p) >= 0 && !p->error;
if (ok)
playlist_add_base_path(p->pl, mp_dirname(demuxer->filename));
demuxer->playlist = talloc_steal(demuxer, p->pl);
demuxer->filetype = fmt->name;
talloc_free(p);
return ok ? 0 : -1;
}
const struct demuxer_desc demuxer_desc_playlist = {
.name = "playlist",
.desc = "Playlist file",
.open = open_file,
};
|
