source: src/io/source_sndfile.c @ 5210563

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5sampleryinfft+
Last change on this file since 5210563 was 5210563, checked in by Paul Brossier <piem@piem.org>, 7 years ago

src/io/source_sndfile.c: set handle to null after sucessful close

  • Property mode set to 100644
File size: 10.1 KB
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1/*
2  Copyright (C) 2012 Paul Brossier <piem@aubio.org>
3
4  This file is part of aubio.
5
6  aubio is free software: you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation, either version 3 of the License, or
9  (at your option) any later version.
10
11  aubio is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  GNU General Public License for more details.
15
16  You should have received a copy of the GNU General Public License
17  along with aubio.  If not, see <http://www.gnu.org/licenses/>.
18
19*/
20
21
22#include "config.h"
23
24#ifdef HAVE_SNDFILE
25
26#include <sndfile.h>
27
28#include "aubio_priv.h"
29#include "fvec.h"
30#include "fmat.h"
31#include "source_sndfile.h"
32
33#include "temporal/resampler.h"
34
35#define MAX_CHANNELS 6
36#define MAX_SIZE 4096
37#define MAX_SAMPLES MAX_CHANNELS * MAX_SIZE
38
39#if !HAVE_AUBIO_DOUBLE
40#define aubio_sf_read_smpl sf_read_float
41#else /* HAVE_AUBIO_DOUBLE */
42#define aubio_sf_read_smpl sf_read_double
43#endif /* HAVE_AUBIO_DOUBLE */
44
45struct _aubio_source_sndfile_t {
46  uint_t hop_size;
47  uint_t samplerate;
48  uint_t channels;
49
50  // some data about the file
51  char_t *path;
52  SNDFILE *handle;
53  int input_samplerate;
54  int input_channels;
55  int input_format;
56  int duration;
57
58  // resampling stuff
59  smpl_t ratio;
60  uint_t input_hop_size;
61#ifdef HAVE_SAMPLERATE
62  aubio_resampler_t **resamplers;
63  fvec_t *input_data;
64  fmat_t *input_mat;
65#endif /* HAVE_SAMPLERATE */
66
67  // some temporary memory for sndfile to write at
68  uint_t scratch_size;
69  smpl_t *scratch_data;
70};
71
72aubio_source_sndfile_t * new_aubio_source_sndfile(const char_t * path, uint_t samplerate, uint_t hop_size) {
73  aubio_source_sndfile_t * s = AUBIO_NEW(aubio_source_sndfile_t);
74  SF_INFO sfinfo;
75
76  if (path == NULL) {
77    AUBIO_ERR("source_sndfile: Aborted opening null path\n");
78    goto beach;
79  }
80  if ((sint_t)samplerate < 0) {
81    AUBIO_ERR("source_sndfile: Can not open %s with samplerate %d\n", path, samplerate);
82    goto beach;
83  }
84  if ((sint_t)hop_size <= 0) {
85    AUBIO_ERR("source_sndfile: Can not open %s with hop_size %d\n", path, hop_size);
86    goto beach;
87  }
88
89  s->hop_size = hop_size;
90  s->channels = 1;
91
92  if (s->path) AUBIO_FREE(s->path);
93  s->path = AUBIO_ARRAY(char_t, strnlen(path, PATH_MAX) + 1);
94  strncpy(s->path, path, strnlen(path, PATH_MAX) + 1);
95
96  // try opening the file, getting the info in sfinfo
97  AUBIO_MEMSET(&sfinfo, 0, sizeof (sfinfo));
98  s->handle = sf_open (s->path, SFM_READ, &sfinfo);
99
100  if (s->handle == NULL) {
101    /* show libsndfile err msg */
102    AUBIO_ERR("source_sndfile: Failed opening %s (%s)\n", s->path,
103        sf_strerror (NULL));
104    goto beach;
105  }
106
107  /* get input specs */
108  s->input_samplerate = sfinfo.samplerate;
109  s->input_channels   = sfinfo.channels;
110  s->input_format     = sfinfo.format;
111  s->duration         = sfinfo.frames;
112
113  if (samplerate == 0) {
114    s->samplerate = s->input_samplerate;
115    //AUBIO_DBG("sampling rate set to 0, automagically adjusting to %d\n", samplerate);
116  } else {
117    s->samplerate = samplerate;
118  }
119  /* compute input block size required before resampling */
120  s->ratio = s->samplerate/(smpl_t)s->input_samplerate;
121  s->input_hop_size = (uint_t)FLOOR(s->hop_size / s->ratio + .5);
122
123  if (s->input_hop_size * s->input_channels > MAX_SAMPLES) {
124    AUBIO_ERR("source_sndfile: Not able to process more than %d frames of %d channels\n",
125        MAX_SAMPLES / s->input_channels, s->input_channels);
126    goto beach;
127  }
128
129#ifdef HAVE_SAMPLERATE
130  s->input_data = NULL;
131  s->input_mat = NULL;
132  s->resamplers = NULL;
133  if (s->ratio != 1) {
134    uint_t i;
135    s->resamplers = AUBIO_ARRAY(aubio_resampler_t*, s->input_channels);
136    s->input_data = new_fvec(s->input_hop_size);
137    s->input_mat = new_fmat(s->input_channels, s->input_hop_size);
138    for (i = 0; i < (uint_t)s->input_channels; i++) {
139      s->resamplers[i] = new_aubio_resampler(s->ratio, 4);
140    }
141    if (s->ratio > 1) {
142      // we would need to add a ring buffer for these
143      if ( (uint_t)(s->input_hop_size * s->ratio + .5)  != s->hop_size ) {
144        AUBIO_ERR("source_sndfile: can not upsample %s from %d to %d\n", s->path,
145            s->input_samplerate, s->samplerate);
146        goto beach;
147      }
148      AUBIO_WRN("source_sndfile: upsampling %s from %d to %d\n", s->path,
149          s->input_samplerate, s->samplerate);
150    }
151    s->duration = (uint_t)FLOOR(s->duration * s->ratio);
152  }
153#else
154  if (s->ratio != 1) {
155    AUBIO_ERR("source_sndfile: aubio was compiled without aubio_resampler\n");
156    goto beach;
157  }
158#endif /* HAVE_SAMPLERATE */
159
160  /* allocate data for de/interleaving reallocated when needed. */
161  s->scratch_size = s->input_hop_size * s->input_channels;
162  s->scratch_data = AUBIO_ARRAY(smpl_t, s->scratch_size);
163
164  return s;
165
166beach:
167  //AUBIO_ERR("can not read %s at samplerate %dHz with a hop_size of %d\n",
168  //    s->path, s->samplerate, s->hop_size);
169  del_aubio_source_sndfile(s);
170  return NULL;
171}
172
173void aubio_source_sndfile_do(aubio_source_sndfile_t * s, fvec_t * read_data, uint_t * read){
174  uint_t i,j, input_channels = s->input_channels;
175  /* read from file into scratch_data */
176  sf_count_t read_samples = aubio_sf_read_smpl (s->handle, s->scratch_data, s->scratch_size);
177
178  /* where to store de-interleaved data */
179  smpl_t *ptr_data;
180#ifdef HAVE_SAMPLERATE
181  if (s->ratio != 1) {
182    ptr_data = s->input_data->data;
183  } else
184#endif /* HAVE_SAMPLERATE */
185  {
186    ptr_data = read_data->data;
187  }
188
189  /* de-interleaving and down-mixing data  */
190  for (j = 0; j < read_samples / input_channels; j++) {
191    ptr_data[j] = 0;
192    for (i = 0; i < input_channels; i++) {
193      ptr_data[j] += s->scratch_data[input_channels*j+i];
194    }
195    ptr_data[j] /= (smpl_t)input_channels;
196  }
197
198#ifdef HAVE_SAMPLERATE
199  if (s->resamplers) {
200    aubio_resampler_do(s->resamplers[0], s->input_data, read_data);
201  }
202#endif /* HAVE_SAMPLERATE */
203
204  *read = (int)FLOOR(s->ratio * read_samples / input_channels + .5);
205
206  if (*read < s->hop_size) {
207    for (j = *read; j < s->hop_size; j++) {
208      read_data->data[j] = 0;
209    }
210  }
211
212}
213
214void aubio_source_sndfile_do_multi(aubio_source_sndfile_t * s, fmat_t * read_data, uint_t * read){
215  uint_t i,j, input_channels = s->input_channels;
216  /* do actual reading */
217  sf_count_t read_samples = aubio_sf_read_smpl (s->handle, s->scratch_data, s->scratch_size);
218
219  /* where to store de-interleaved data */
220  smpl_t **ptr_data;
221#ifdef HAVE_SAMPLERATE
222  if (s->ratio != 1) {
223    ptr_data = s->input_mat->data;
224  } else
225#endif /* HAVE_SAMPLERATE */
226  {
227    ptr_data = read_data->data;
228  }
229
230  if (read_data->height < input_channels) {
231    // destination matrix has less channels than the file; copy only first
232    // channels of the file, de-interleaving data
233    for (j = 0; j < read_samples / input_channels; j++) {
234      for (i = 0; i < read_data->height; i++) {
235        ptr_data[i][j] = s->scratch_data[j * input_channels + i];
236      }
237    }
238  } else {
239    // destination matrix has as many or more channels than the file; copy each
240    // channel from the file to the destination matrix, de-interleaving data
241    for (j = 0; j < read_samples / input_channels; j++) {
242      for (i = 0; i < input_channels; i++) {
243        ptr_data[i][j] = s->scratch_data[j * input_channels + i];
244      }
245    }
246  }
247
248  if (read_data->height > input_channels) {
249    // destination matrix has more channels than the file; copy last channel
250    // of the file to each additional channels, de-interleaving data
251    for (j = 0; j < read_samples / input_channels; j++) {
252      for (i = input_channels; i < read_data->height; i++) {
253        ptr_data[i][j] = s->scratch_data[j * input_channels + (input_channels - 1)];
254      }
255    }
256  }
257
258#ifdef HAVE_SAMPLERATE
259  if (s->resamplers) {
260    for (i = 0; i < input_channels; i++) {
261      fvec_t input_chan, read_chan;
262      input_chan.data = s->input_mat->data[i];
263      input_chan.length = s->input_mat->length;
264      read_chan.data = read_data->data[i];
265      read_chan.length = read_data->length;
266      aubio_resampler_do(s->resamplers[i], &input_chan, &read_chan);
267    }
268  }
269#endif /* HAVE_SAMPLERATE */
270
271  *read = (int)FLOOR(s->ratio * read_samples / input_channels + .5);
272
273  if (*read < s->hop_size) {
274    for (i = 0; i < read_data->height; i++) {
275      for (j = *read; j < s->hop_size; j++) {
276        read_data->data[i][j] = 0.;
277      }
278    }
279  }
280
281}
282
283uint_t aubio_source_sndfile_get_samplerate(aubio_source_sndfile_t * s) {
284  return s->samplerate;
285}
286
287uint_t aubio_source_sndfile_get_channels(aubio_source_sndfile_t * s) {
288  return s->input_channels;
289}
290
291uint_t aubio_source_sndfile_get_duration (const aubio_source_sndfile_t * s) {
292  if (s && s->duration) {
293    return s->duration;
294  }
295  return 0;
296}
297
298uint_t aubio_source_sndfile_seek (aubio_source_sndfile_t * s, uint_t pos) {
299  uint_t resampled_pos = (uint_t)ROUND(pos / s->ratio);
300  sf_count_t sf_ret = sf_seek (s->handle, resampled_pos, SEEK_SET);
301  if (sf_ret == -1) {
302    AUBIO_ERR("source_sndfile: Failed seeking %s at %d: %s\n", s->path, pos, sf_strerror (NULL));
303    return AUBIO_FAIL;
304  }
305  if (sf_ret != resampled_pos) {
306    AUBIO_ERR("source_sndfile: Tried seeking %s at %d, but got %d: %s\n",
307        s->path, resampled_pos, (uint_t)sf_ret, sf_strerror (NULL));
308    return AUBIO_FAIL;
309  }
310  return AUBIO_OK;
311}
312
313uint_t aubio_source_sndfile_close (aubio_source_sndfile_t *s) {
314  if (!s->handle) {
315    return AUBIO_FAIL;
316  }
317  if(sf_close(s->handle)) {
318    AUBIO_ERR("source_sndfile: Error closing file %s: %s\n", s->path, sf_strerror (NULL));
319    return AUBIO_FAIL;
320  }
321  s->handle = NULL;
322  return AUBIO_OK;
323}
324
325void del_aubio_source_sndfile(aubio_source_sndfile_t * s){
326  if (!s) return;
327  aubio_source_sndfile_close(s);
328#ifdef HAVE_SAMPLERATE
329  if (s->resamplers != NULL) {
330    uint_t i = 0, input_channels = s->input_channels;
331    for (i = 0; i < input_channels; i ++) {
332      if (s->resamplers[i] != NULL) {
333        del_aubio_resampler(s->resamplers[i]);
334      }
335    }
336    AUBIO_FREE(s->resamplers);
337  }
338  if (s->input_data) {
339    del_fvec(s->input_data);
340  }
341  if (s->input_mat) {
342    del_fmat(s->input_mat);
343  }
344#endif /* HAVE_SAMPLERATE */
345  if (s->path) AUBIO_FREE(s->path);
346  AUBIO_FREE(s->scratch_data);
347  AUBIO_FREE(s);
348}
349
350#endif /* HAVE_SNDFILE */
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