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
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
/*
* threaded soundfiler for PD
* Copyright (C) 2005, Georg Holzmann <grh@mur.at>
*
* This program 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.
*
* This program 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 this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "sndfiler.h"
#include "file_input.h"
int check_fileformat(t_symbol* file)
{
FILE *fp = NULL;
OggVorbis_File vorbisfile;
// partially opens a vorbis file to test for Vorbis-ness
if( !(fp = fopen(file->s_name, "r")) )
return -1;
if( ov_test(fp, &vorbisfile, NULL, 0) < 0 )
{
fclose(fp);
return USE_LIBSNDFILE;
}
ov_clear(&vorbisfile);
return USE_LIBVORBISFILE;
}
int read_libsndfile(t_float** helper_arrays, int channel_count, int seek,
int resize, int array_size, t_symbol* file)
{
int arraysize = array_size;
int writesize = 0, i=0, j=0;
SNDFILE* sndfile;
SF_INFO info;
sndfile = sf_open(file->s_name, SFM_READ, &info);
if(!sndfile)
return -1;
int pos = 0;
int maxchannels = (channel_count < info.channels) ?
channel_count : info.channels;
t_float * item = alloca(maxchannels * sizeof(t_float));
// negative seek: offset from the end of the file
if(seek<0)
{
if(CHECK_SEEK(seek+info.frames, info.frames))
pos = sf_seek(sndfile, seek, SEEK_END);
else pos = -1;
}
if(seek>0)
{
if(CHECK_SEEK(seek, info.frames))
pos = sf_seek(sndfile, seek, SEEK_SET);
else pos = -1;
}
if(pos == -1)
{
sf_close(sndfile);
post("invalid seek in soundfile");
return -1;
}
if(resize)
{
writesize = (info.frames-pos);
arraysize = writesize;
}
else
writesize = (arraysize>(info.frames-pos)) ?
info.frames-pos : arraysize;
#if (_POSIX_MEMLOCK - 0) >= 200112L
munlockall();
#endif
for (i = 0; i != channel_count; ++i)
{
helper_arrays[i] = getalignedbytes(arraysize * sizeof(t_float));
}
for (i = 0; i != writesize; ++i)
{
sf_read_float(sndfile, item, info.channels);
for (j = 0; j != info.channels; ++j)
{
if (j < channel_count)
{
helper_arrays[j][i] = item[j];
}
}
}
// fill remaining elements with zero
if(!resize && (arraysize > (info.frames-pos)))
{
for (i = writesize; i != arraysize; ++i)
{
for (j = 0; j != info.channels; ++j)
{
if (j < channel_count)
{
helper_arrays[j][i] = 0;
}
}
}
}
#if (_POSIX_MEMLOCK - 0) >= 200112L
mlockall(MCL_FUTURE);
#endif
sf_close(sndfile);
return arraysize;
}
int read_libvorbisfile(t_float** helper_arrays, int channel_count, int seek,
int resize, int array_size, t_symbol* file)
{
int arraysize = array_size;
int writesize = 0, i=0, j=0;
int pos=0, maxchannels=0, frames=0, frames_read=0;
int current_section=0, finished=0;
float **buftmp = NULL;
FILE *fp = NULL;
OggVorbis_File vorbisfile;
vorbis_info *info;
if( !(fp = fopen(file->s_name, "r")) )
return -1;
if( ov_open(fp, &vorbisfile, NULL, 0) < 0 )
{
fclose(fp);
return -1;
}
info = ov_info(&vorbisfile, -1);
frames = ov_pcm_total(&vorbisfile, -1);
if( !info || frames==OV_EINVAL )
{
ov_clear(&vorbisfile);
post("failed to get info about vorbis file");
return -1;
}
maxchannels = (channel_count < info->channels) ?
channel_count : info->channels;
// negative seek: offset from the end of the file
if(seek<0)
{
if(CHECK_SEEK(frames+seek, frames))
{
int ret = ov_pcm_seek(&vorbisfile, frames+seek);
if(ret!=0)
pos =-1;
else
pos = frames+seek;
}
else pos = -1;
}
if(seek>0)
{
if(CHECK_SEEK(seek, frames))
{
int ret = ov_pcm_seek(&vorbisfile, seek);
if(ret!=0)
pos =-1;
else
pos = seek;
}
else pos = -1;
}
if(pos == -1)
{
ov_clear(&vorbisfile);
post("invalid seek in vorbis file");
return -1;
}
if(resize)
{
writesize = (frames-pos);
arraysize = writesize;
}
else
writesize = (arraysize>(frames-pos)) ?
frames-pos : arraysize;
#if (_POSIX_MEMLOCK - 0) >= 200112L
munlockall();
#endif
for (i = 0; i != channel_count; ++i)
{
helper_arrays[i] = getalignedbytes(arraysize * sizeof(t_float));
}
for (i = 0; i != writesize; ++i)
{
int ret = ov_read_float(&vorbisfile, &buftmp, 1,
¤t_section);
if(ret!=1)
post("wrong return type while ogg decoding!");
for (j = 0; j != channel_count; ++j)
{
helper_arrays[j][i] = buftmp[j][0];
}
}
// fill remaining elements with zero
if(!resize && (arraysize > (frames-pos)))
{
for (i = writesize; i != arraysize; ++i)
{
for (j = 0; j != info->channels; ++j)
{
if (j < channel_count)
{
helper_arrays[j][i] = 0;
}
}
}
}
#if (_POSIX_MEMLOCK - 0) >= 200112L
mlockall(MCL_FUTURE);
#endif
ov_clear(&vorbisfile);
return arraysize;
}
|
