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
|
/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio 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 Lesser General Public License
along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sndfile.h>
#include <pulse/sample.h>
#include <pulsecore/log.h>
#include <pulsecore/macro.h>
#include <pulsecore/core-error.h>
#include <pulsecore/core-util.h>
#include <pulsecore/core-scache.h>
#include <pulsecore/sndfile-util.h>
#include "sound-file.h"
int pa_sound_file_load(
pa_mempool *pool,
const char *fname,
pa_sample_spec *ss,
pa_channel_map *map,
pa_memchunk *chunk,
pa_proplist *p) {
SNDFILE *sf = NULL;
SF_INFO sfi;
int ret = -1;
size_t l;
sf_count_t (*readf_function)(SNDFILE *sndfile, void *ptr, sf_count_t frames) = NULL;
void *ptr = NULL;
int fd;
pa_assert(fname);
pa_assert(ss);
pa_assert(chunk);
pa_memchunk_reset(chunk);
if ((fd = pa_open_cloexec(fname, O_RDONLY, 0)) < 0) {
pa_log("Failed to open file %s: %s", fname, pa_cstrerror(errno));
goto finish;
}
#ifdef HAVE_POSIX_FADVISE
if (posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL) < 0) {
pa_log_warn("POSIX_FADV_SEQUENTIAL failed: %s", pa_cstrerror(errno));
goto finish;
} else
pa_log_debug("POSIX_FADV_SEQUENTIAL succeeded.");
#endif
pa_zero(sfi);
if (!(sf = sf_open_fd(fd, SFM_READ, &sfi, 1))) {
pa_log("Failed to open file %s", fname);
goto finish;
}
fd = -1;
if (pa_sndfile_read_sample_spec(sf, ss) < 0) {
pa_log("Failed to determine file sample format.");
goto finish;
}
if ((map && pa_sndfile_read_channel_map(sf, map) < 0)) {
if (ss->channels > 2)
pa_log("Failed to determine file channel map, synthesizing one.");
pa_channel_map_init_extend(map, ss->channels, PA_CHANNEL_MAP_DEFAULT);
}
if (p)
pa_sndfile_init_proplist(sf, p);
if ((l = pa_frame_size(ss) * (size_t) sfi.frames) > PA_SCACHE_ENTRY_SIZE_MAX) {
pa_log("File too large");
goto finish;
}
chunk->memblock = pa_memblock_new(pool, l);
chunk->index = 0;
chunk->length = l;
readf_function = pa_sndfile_readf_function(ss);
ptr = pa_memblock_acquire(chunk->memblock);
if ((readf_function && readf_function(sf, ptr, sfi.frames) != sfi.frames) ||
(!readf_function && sf_read_raw(sf, ptr, (sf_count_t) l) != (sf_count_t) l)) {
pa_log("Premature file end");
goto finish;
}
ret = 0;
finish:
if (sf)
sf_close(sf);
if (ptr)
pa_memblock_release(chunk->memblock);
if (ret != 0 && chunk->memblock)
pa_memblock_unref(chunk->memblock);
if (fd >= 0)
pa_close(fd);
return ret;
}
int pa_sound_file_too_big_to_cache(const char *fname) {
SNDFILE*sf = NULL;
SF_INFO sfi;
pa_sample_spec ss;
pa_assert(fname);
pa_zero(sfi);
if (!(sf = sf_open(fname, SFM_READ, &sfi))) {
pa_log("Failed to open file %s", fname);
return -1;
}
if (pa_sndfile_read_sample_spec(sf, &ss) < 0) {
pa_log("Failed to determine file sample format.");
sf_close(sf);
return -1;
}
sf_close(sf);
if ((pa_frame_size(&ss) * (size_t) sfi.frames) > PA_SCACHE_ENTRY_SIZE_MAX) {
pa_log("File too large: %s", fname);
return 1;
}
return 0;
}
|
