source: src/io/source_sndfile.c @ b63c7d3

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5sampler
Last change on this file since b63c7d3 was 48ebc3b, checked in by Paul Brossier <piem@piem.org>, 8 years ago

src/io/source_sndfile.c: allow closing twice

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File size: 10.4 KB
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[afbd7e7]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
[33d0242]21#include "aubio_priv.h"
[afbd7e7]22
23#ifdef HAVE_SNDFILE
24
25#include <sndfile.h>
26
27#include "fvec.h"
[3d2fe26]28#include "fmat.h"
29#include "source_sndfile.h"
[afbd7e7]30
[87dfc3f]31#include "temporal/resampler.h"
32
[afbd7e7]33#define MAX_SIZE 4096
[18a96aa]34#define MAX_SAMPLES AUBIO_MAX_CHANNELS * MAX_SIZE
[afbd7e7]35
[5bd806d]36#if !HAVE_AUBIO_DOUBLE
37#define aubio_sf_read_smpl sf_read_float
38#else /* HAVE_AUBIO_DOUBLE */
39#define aubio_sf_read_smpl sf_read_double
40#endif /* HAVE_AUBIO_DOUBLE */
41
[afbd7e7]42struct _aubio_source_sndfile_t {
43  uint_t hop_size;
44  uint_t samplerate;
45  uint_t channels;
[18c6b20]46
47  // some data about the file
48  char_t *path;
49  SNDFILE *handle;
[afbd7e7]50  int input_samplerate;
51  int input_channels;
52  int input_format;
[c6e7ba1]53  int duration;
[87dfc3f]54
[18c6b20]55  // resampling stuff
[87dfc3f]56  smpl_t ratio;
[18c6b20]57  uint_t input_hop_size;
[87dfc3f]58#ifdef HAVE_SAMPLERATE
[1d01e515]59  aubio_resampler_t **resamplers;
[18c6b20]60  fvec_t *input_data;
[1d01e515]61  fmat_t *input_mat;
[87dfc3f]62#endif /* HAVE_SAMPLERATE */
[18c6b20]63
64  // some temporary memory for sndfile to write at
65  uint_t scratch_size;
[5bd806d]66  smpl_t *scratch_data;
[afbd7e7]67};
68
[ae5d58a]69aubio_source_sndfile_t * new_aubio_source_sndfile(const char_t * path, uint_t samplerate, uint_t hop_size) {
[afbd7e7]70  aubio_source_sndfile_t * s = AUBIO_NEW(aubio_source_sndfile_t);
[67b05b4]71  SF_INFO sfinfo;
[afbd7e7]72
73  if (path == NULL) {
[491e6ea]74    AUBIO_ERR("source_sndfile: Aborted opening null path\n");
[447c673]75    goto beach;
76  }
77  if ((sint_t)samplerate < 0) {
[491e6ea]78    AUBIO_ERR("source_sndfile: Can not open %s with samplerate %d\n", path, samplerate);
[447c673]79    goto beach;
80  }
81  if ((sint_t)hop_size <= 0) {
[491e6ea]82    AUBIO_ERR("source_sndfile: Can not open %s with hop_size %d\n", path, hop_size);
[447c673]83    goto beach;
[afbd7e7]84  }
85
86  s->hop_size = hop_size;
87  s->channels = 1;
[b643a33]88
89  if (s->path) AUBIO_FREE(s->path);
[d2be104]90  s->path = AUBIO_ARRAY(char_t, strnlen(path, PATH_MAX) + 1);
91  strncpy(s->path, path, strnlen(path, PATH_MAX) + 1);
[afbd7e7]92
[3d1ca81]93  // try opening the file, getting the info in sfinfo
[afbd7e7]94  AUBIO_MEMSET(&sfinfo, 0, sizeof (sfinfo));
95  s->handle = sf_open (s->path, SFM_READ, &sfinfo);
96
97  if (s->handle == NULL) {
98    /* show libsndfile err msg */
[17d0f0e]99    AUBIO_ERR("source_sndfile: Failed opening %s (%s)\n", s->path,
100        sf_strerror (NULL));
[18c6b20]101    goto beach;
[a65d37a]102  }
[afbd7e7]103
104  /* get input specs */
105  s->input_samplerate = sfinfo.samplerate;
106  s->input_channels   = sfinfo.channels;
107  s->input_format     = sfinfo.format;
[c6e7ba1]108  s->duration         = sfinfo.frames;
[afbd7e7]109
[c8f411b]110  if (samplerate == 0) {
[26a6af7]111    s->samplerate = s->input_samplerate;
[4db8eab]112    //AUBIO_DBG("sampling rate set to 0, automagically adjusting to %d\n", samplerate);
[26a6af7]113  } else {
114    s->samplerate = samplerate;
[c8f411b]115  }
[18c6b20]116  /* compute input block size required before resampling */
[5bd806d]117  s->ratio = s->samplerate/(smpl_t)s->input_samplerate;
[18c6b20]118  s->input_hop_size = (uint_t)FLOOR(s->hop_size / s->ratio + .5);
119
120  if (s->input_hop_size * s->input_channels > MAX_SAMPLES) {
[491e6ea]121    AUBIO_ERR("source_sndfile: Not able to process more than %d frames of %d channels\n",
[18c6b20]122        MAX_SAMPLES / s->input_channels, s->input_channels);
123    goto beach;
124  }
[87dfc3f]125
126#ifdef HAVE_SAMPLERATE
[18c6b20]127  s->input_data = NULL;
[1d01e515]128  s->input_mat = NULL;
129  s->resamplers = NULL;
[18c6b20]130  if (s->ratio != 1) {
[1d01e515]131    uint_t i;
132    s->resamplers = AUBIO_ARRAY(aubio_resampler_t*, s->input_channels);
[18c6b20]133    s->input_data = new_fvec(s->input_hop_size);
[1d01e515]134    s->input_mat = new_fmat(s->input_channels, s->input_hop_size);
135    for (i = 0; i < (uint_t)s->input_channels; i++) {
136      s->resamplers[i] = new_aubio_resampler(s->ratio, 4);
137    }
[d22cc42]138    if (s->ratio > 1) {
139      // we would need to add a ring buffer for these
[cad7e91]140      if ( (uint_t)FLOOR(s->input_hop_size * s->ratio + .5)  != s->hop_size ) {
[491e6ea]141        AUBIO_ERR("source_sndfile: can not upsample %s from %d to %d\n", s->path,
[018e511]142            s->input_samplerate, s->samplerate);
[d22cc42]143        goto beach;
144      }
[491e6ea]145      AUBIO_WRN("source_sndfile: upsampling %s from %d to %d\n", s->path,
[018e511]146          s->input_samplerate, s->samplerate);
[87dfc3f]147    }
[985d5c4]148    s->duration = (uint_t)FLOOR(s->duration * s->ratio);
[18c6b20]149  }
[87dfc3f]150#else
[18c6b20]151  if (s->ratio != 1) {
[491e6ea]152    AUBIO_ERR("source_sndfile: aubio was compiled without aubio_resampler\n");
[18c6b20]153    goto beach;
[afbd7e7]154  }
[18c6b20]155#endif /* HAVE_SAMPLERATE */
[87dfc3f]156
[afbd7e7]157  /* allocate data for de/interleaving reallocated when needed. */
[18c6b20]158  s->scratch_size = s->input_hop_size * s->input_channels;
[5bd806d]159  s->scratch_data = AUBIO_ARRAY(smpl_t, s->scratch_size);
[afbd7e7]160
161  return s;
[18c6b20]162
163beach:
[447c673]164  //AUBIO_ERR("can not read %s at samplerate %dHz with a hop_size of %d\n",
165  //    s->path, s->samplerate, s->hop_size);
[18c6b20]166  del_aubio_source_sndfile(s);
167  return NULL;
[afbd7e7]168}
169
170void aubio_source_sndfile_do(aubio_source_sndfile_t * s, fvec_t * read_data, uint_t * read){
[18c6b20]171  uint_t i,j, input_channels = s->input_channels;
[2722dc7]172  /* read from file into scratch_data */
[5bd806d]173  sf_count_t read_samples = aubio_sf_read_smpl (s->handle, s->scratch_data, s->scratch_size);
[afbd7e7]174
[2722dc7]175  /* where to store de-interleaved data */
176  smpl_t *ptr_data;
[87dfc3f]177#ifdef HAVE_SAMPLERATE
[18c6b20]178  if (s->ratio != 1) {
[2722dc7]179    ptr_data = s->input_data->data;
[87dfc3f]180  } else
181#endif /* HAVE_SAMPLERATE */
182  {
[2722dc7]183    ptr_data = read_data->data;
[87dfc3f]184  }
[afbd7e7]185
186  /* de-interleaving and down-mixing data  */
[18c6b20]187  for (j = 0; j < read_samples / input_channels; j++) {
[2722dc7]188    ptr_data[j] = 0;
[afbd7e7]189    for (i = 0; i < input_channels; i++) {
[2722dc7]190      ptr_data[j] += s->scratch_data[input_channels*j+i];
[afbd7e7]191    }
[2722dc7]192    ptr_data[j] /= (smpl_t)input_channels;
[87dfc3f]193  }
194
195#ifdef HAVE_SAMPLERATE
[1d01e515]196  if (s->resamplers) {
197    aubio_resampler_do(s->resamplers[0], s->input_data, read_data);
[afbd7e7]198  }
[87dfc3f]199#endif /* HAVE_SAMPLERATE */
200
[18c6b20]201  *read = (int)FLOOR(s->ratio * read_samples / input_channels + .5);
[18a378e]202
203  if (*read < s->hop_size) {
204    for (j = *read; j < s->hop_size; j++) {
[45f48576]205      read_data->data[j] = 0;
[18a378e]206    }
207  }
208
[afbd7e7]209}
210
[4865e4b]211void aubio_source_sndfile_do_multi(aubio_source_sndfile_t * s, fmat_t * read_data, uint_t * read){
212  uint_t i,j, input_channels = s->input_channels;
213  /* do actual reading */
[5bd806d]214  sf_count_t read_samples = aubio_sf_read_smpl (s->handle, s->scratch_data, s->scratch_size);
[4865e4b]215
[2722dc7]216  /* where to store de-interleaved data */
217  smpl_t **ptr_data;
[4865e4b]218#ifdef HAVE_SAMPLERATE
219  if (s->ratio != 1) {
[1d01e515]220    ptr_data = s->input_mat->data;
[4865e4b]221  } else
222#endif /* HAVE_SAMPLERATE */
223  {
[2722dc7]224    ptr_data = read_data->data;
[4865e4b]225  }
226
[50e10a9]227  if (read_data->height < input_channels) {
228    // destination matrix has less channels than the file; copy only first
229    // channels of the file, de-interleaving data
230    for (j = 0; j < read_samples / input_channels; j++) {
231      for (i = 0; i < read_data->height; i++) {
[5bd806d]232        ptr_data[i][j] = s->scratch_data[j * input_channels + i];
[50e10a9]233      }
234    }
235  } else {
236    // destination matrix has as many or more channels than the file; copy each
237    // channel from the file to the destination matrix, de-interleaving data
238    for (j = 0; j < read_samples / input_channels; j++) {
239      for (i = 0; i < input_channels; i++) {
[5bd806d]240        ptr_data[i][j] = s->scratch_data[j * input_channels + i];
[50e10a9]241      }
[4865e4b]242    }
243  }
[50e10a9]244
[6510866]245  if (read_data->height > input_channels) {
[50e10a9]246    // destination matrix has more channels than the file; copy last channel
247    // of the file to each additional channels, de-interleaving data
[6510866]248    for (j = 0; j < read_samples / input_channels; j++) {
[58c24e1]249      for (i = input_channels; i < read_data->height; i++) {
[5bd806d]250        ptr_data[i][j] = s->scratch_data[j * input_channels + (input_channels - 1)];
[6510866]251      }
252    }
253  }
[4865e4b]254
255#ifdef HAVE_SAMPLERATE
[1d01e515]256  if (s->resamplers) {
257    for (i = 0; i < input_channels; i++) {
258      fvec_t input_chan, read_chan;
259      input_chan.data = s->input_mat->data[i];
260      input_chan.length = s->input_mat->length;
261      read_chan.data = read_data->data[i];
262      read_chan.length = read_data->length;
263      aubio_resampler_do(s->resamplers[i], &input_chan, &read_chan);
264    }
[4865e4b]265  }
266#endif /* HAVE_SAMPLERATE */
267
268  *read = (int)FLOOR(s->ratio * read_samples / input_channels + .5);
[18a378e]269
270  if (*read < s->hop_size) {
[69440b8]271    for (i = 0; i < read_data->height; i++) {
[18a378e]272      for (j = *read; j < s->hop_size; j++) {
[45f48576]273        read_data->data[i][j] = 0.;
[18a378e]274      }
275    }
276  }
277
[4865e4b]278}
279
[063fa5a]280uint_t aubio_source_sndfile_get_samplerate(aubio_source_sndfile_t * s) {
281  return s->samplerate;
282}
283
[4865e4b]284uint_t aubio_source_sndfile_get_channels(aubio_source_sndfile_t * s) {
285  return s->input_channels;
286}
287
[c6e7ba1]288uint_t aubio_source_sndfile_get_duration (const aubio_source_sndfile_t * s) {
289  if (s && s->duration) {
290    return s->duration;
291  }
292  return 0;
293}
294
[7982203]295uint_t aubio_source_sndfile_seek (aubio_source_sndfile_t * s, uint_t pos) {
[7bb5cef]296  uint_t resampled_pos = (uint_t)ROUND(pos / s->ratio);
[53bb4da]297  sf_count_t sf_ret;
[0eeba03]298  if (s->handle == NULL) {
299    AUBIO_ERR("source_sndfile: failed seeking in %s (file not opened?)\n",
300        s->path);
301    return AUBIO_FAIL;
302  }
[05a8c18]303  if ((sint_t)pos < 0) {
304    AUBIO_ERR("source_sndfile: could not seek %s at %d (seeking position"
305       " should be >= 0)\n", s->path, pos);
306    return AUBIO_FAIL;
307  }
[53bb4da]308  sf_ret = sf_seek (s->handle, resampled_pos, SEEK_SET);
[f33ab63]309  if (sf_ret == -1) {
310    AUBIO_ERR("source_sndfile: Failed seeking %s at %d: %s\n", s->path, pos, sf_strerror (NULL));
311    return AUBIO_FAIL;
312  }
313  if (sf_ret != resampled_pos) {
[74dcddb]314    AUBIO_ERR("source_sndfile: Tried seeking %s at %d, but got %d: %s\n",
315        s->path, resampled_pos, (uint_t)sf_ret, sf_strerror (NULL));
[f33ab63]316    return AUBIO_FAIL;
317  }
318  return AUBIO_OK;
[7982203]319}
320
[422452b]321uint_t aubio_source_sndfile_close (aubio_source_sndfile_t *s) {
322  if (!s->handle) {
[48ebc3b]323    return AUBIO_OK;
[c038740]324  }
[422452b]325  if(sf_close(s->handle)) {
[f33ab63]326    AUBIO_ERR("source_sndfile: Error closing file %s: %s\n", s->path, sf_strerror (NULL));
[422452b]327    return AUBIO_FAIL;
[afbd7e7]328  }
[5210563]329  s->handle = NULL;
[422452b]330  return AUBIO_OK;
331}
332
333void del_aubio_source_sndfile(aubio_source_sndfile_t * s){
334  if (!s) return;
[c038740]335  aubio_source_sndfile_close(s);
[87dfc3f]336#ifdef HAVE_SAMPLERATE
[1d01e515]337  if (s->resamplers != NULL) {
338    uint_t i = 0, input_channels = s->input_channels;
339    for (i = 0; i < input_channels; i ++) {
340      if (s->resamplers[i] != NULL) {
341        del_aubio_resampler(s->resamplers[i]);
342      }
343    }
344    AUBIO_FREE(s->resamplers);
[87dfc3f]345  }
[18c6b20]346  if (s->input_data) {
347    del_fvec(s->input_data);
[87dfc3f]348  }
[1d01e515]349  if (s->input_mat) {
350    del_fmat(s->input_mat);
351  }
[87dfc3f]352#endif /* HAVE_SAMPLERATE */
[b643a33]353  if (s->path) AUBIO_FREE(s->path);
[afbd7e7]354  AUBIO_FREE(s->scratch_data);
355  AUBIO_FREE(s);
356}
357
358#endif /* HAVE_SNDFILE */
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