source: src/io/sink_wavwrite.c @ a2b7187

feature/autosinkfeature/constantqfeature/pitchshiftfeature/timestretch
Last change on this file since a2b7187 was a2b7187, checked in by Paul Brossier <piem@piem.org>, 12 months ago

[sink_wavwrite] factorise in aubio_sink_wavwrite_write_frames, use AUBIO_STRERROR

  • Property mode set to 100644
File size: 8.7 KB
Line 
1/*
2  Copyright (C) 2014 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 "aubio_priv.h"
23
24#ifdef HAVE_WAVWRITE
25
26#include "fvec.h"
27#include "fmat.h"
28#include "io/sink_wavwrite.h"
29#include "io/ioutils.h"
30
31#include <errno.h>
32
33#define MAX_SIZE 4096
34
35#define FLOAT_TO_SHORT(x) (short)(x * 32768)
36
37// swap endian of a short
38#define SWAPS(x) ((x & 0xff) << 8) | ((x & 0xff00) >> 8)
39
40// swap host to little endian
41#if defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
42#define HTOLES(x) SWAPS(x)
43#elif defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
44#define HTOLES(x) x
45#else
46#ifdef HAVE_WIN_HACKS
47#define HTOLES(x) x
48#else
49#define HTOLES(x) SWAPS(htons(x))
50#endif
51#endif
52
53uint_t aubio_sink_wavwrite_open(aubio_sink_wavwrite_t *s);
54
55struct _aubio_sink_wavwrite_t {
56  char_t *path;
57  uint_t samplerate;
58  uint_t channels;
59  uint_t bitspersample;
60  uint_t total_frames_written;
61
62  FILE *fid;
63
64  uint_t max_size;
65
66  uint_t scratch_size;
67  unsigned short *scratch_data;
68};
69
70static unsigned char *write_little_endian (unsigned int s, unsigned char *str,
71    unsigned int length);
72
73static unsigned char *write_little_endian (unsigned int s, unsigned char *str,
74    unsigned int length)
75{
76  uint_t i;
77  for (i = 0; i < length; i++) {
78    str[i] = s >> (i * 8);
79  }
80  return str;
81}
82
83aubio_sink_wavwrite_t * new_aubio_sink_wavwrite(const char_t * path, uint_t samplerate) {
84  aubio_sink_wavwrite_t * s = AUBIO_NEW(aubio_sink_wavwrite_t);
85
86  if (path == NULL) {
87    AUBIO_ERR("sink_wavwrite: Aborted opening null path\n");
88    goto beach;
89  }
90
91  s->path = AUBIO_ARRAY(char_t, strnlen(path, PATH_MAX) + 1);
92  strncpy(s->path, path, strnlen(path, PATH_MAX) + 1);
93
94  s->max_size = MAX_SIZE;
95  s->bitspersample = 16;
96  s->total_frames_written = 0;
97
98  s->samplerate = 0;
99  s->channels = 0;
100
101  // zero samplerate given. do not open yet
102  if ((sint_t)samplerate == 0) {
103    return s;
104  }
105  // invalid samplerate given, abort
106  if (aubio_io_validate_samplerate("sink_wavwrite", s->path, samplerate)) {
107    goto beach;
108  }
109
110  s->samplerate = samplerate;
111  s->channels = 1;
112
113  if (aubio_sink_wavwrite_open(s) != AUBIO_OK) {
114    // open failed, abort
115    goto beach;
116  }
117
118  return s;
119beach:
120  //AUBIO_ERR("sink_wavwrite: failed creating %s with samplerate %dHz\n",
121  //    s->path, s->samplerate);
122  del_aubio_sink_wavwrite(s);
123  return NULL;
124}
125
126uint_t aubio_sink_wavwrite_preset_samplerate(aubio_sink_wavwrite_t *s, uint_t samplerate)
127{
128  if (aubio_io_validate_samplerate("sink_wavwrite", s->path, samplerate)) {
129    return AUBIO_FAIL;
130  }
131  s->samplerate = samplerate;
132  // automatically open when both samplerate and channels have been set
133  if (/* s->samplerate != 0 && */ s->channels != 0) {
134    return aubio_sink_wavwrite_open(s);
135  }
136  return AUBIO_OK;
137}
138
139uint_t aubio_sink_wavwrite_preset_channels(aubio_sink_wavwrite_t *s, uint_t channels)
140{
141  if (aubio_io_validate_channels("sink_wavwrite", s->path, channels)) {
142    return AUBIO_FAIL;
143  }
144  s->channels = channels;
145  // automatically open when both samplerate and channels have been set
146  if (s->samplerate != 0 /* && s->channels != 0 */) {
147    return aubio_sink_wavwrite_open(s);
148  }
149  return AUBIO_OK;
150}
151
152uint_t aubio_sink_wavwrite_get_samplerate(const aubio_sink_wavwrite_t *s)
153{
154  return s->samplerate;
155}
156
157uint_t aubio_sink_wavwrite_get_channels(const aubio_sink_wavwrite_t *s)
158{
159  return s->channels;
160}
161
162uint_t aubio_sink_wavwrite_open(aubio_sink_wavwrite_t *s) {
163  unsigned char buf[5];
164  uint_t byterate, blockalign;
165  size_t written = 0;
166
167  /* open output file */
168  s->fid = fopen((const char *)s->path, "wb");
169  if (!s->fid) {
170    char errorstr[256];
171    AUBIO_STRERROR(errno, errorstr, sizeof(errorstr));
172    AUBIO_ERR("sink_wavwrite: could not open %s (%s)\n", s->path, errorstr);
173    goto beach;
174  }
175
176  // ChunkID
177  written += fwrite("RIFF", 4, 1, s->fid);
178
179  // ChunkSize (0 for now, actual size will be written in _close)
180  written += fwrite(write_little_endian(0, buf, 4), 4, 1, s->fid);
181
182  // Format
183  written += fwrite("WAVE", 4, 1, s->fid);
184
185  // Subchunk1ID
186  written += fwrite("fmt ", 4, 1, s->fid);
187
188  // Subchunk1Size
189  written += fwrite(write_little_endian(16, buf, 4), 4, 1, s->fid);
190
191  // AudioFormat
192  written += fwrite(write_little_endian(1, buf, 2), 2, 1, s->fid);
193
194  // NumChannels
195  written += fwrite(write_little_endian(s->channels, buf, 2), 2, 1, s->fid);
196
197  // SampleRate
198  written += fwrite(write_little_endian(s->samplerate, buf, 4), 4, 1, s->fid);
199
200  // ByteRate
201  byterate = s->samplerate * s->channels * s->bitspersample / 8;
202  written += fwrite(write_little_endian(byterate, buf, 4), 4, 1, s->fid);
203
204  // BlockAlign
205  blockalign = s->channels * s->bitspersample / 8;
206  written += fwrite(write_little_endian(blockalign, buf, 2), 2, 1, s->fid);
207
208  // BitsPerSample
209  written += fwrite(write_little_endian(s->bitspersample, buf, 2), 2, 1, s->fid);
210
211  // Subchunk2ID
212  written += fwrite("data", 4, 1, s->fid);
213
214  // Subchunk1Size (0 for now, actual size will be written in _close)
215  written += fwrite(write_little_endian(0, buf, 4), 4, 1, s->fid);
216
217  // fwrite(*, *, 1, s->fid) was called 13 times, check success
218  if (written != 13) {
219    char errorstr[256];
220    AUBIO_STRERROR(errno, errorstr, sizeof(errorstr));
221    AUBIO_WRN("sink_wavwrite: writing header to %s failed, expected %d"
222        " write but got only %d (%s)\n", s->path, 13, written, errorstr);
223    return AUBIO_FAIL;
224  }
225
226  s->scratch_size = s->max_size * s->channels;
227  /* allocate data for de/interleaving reallocated when needed. */
228  if (s->scratch_size >= MAX_SIZE * AUBIO_MAX_CHANNELS) {
229    AUBIO_ERR("sink_wavwrite: %d x %d exceeds SIZE maximum buffer size %d\n",
230        s->max_size, s->channels, MAX_SIZE * AUBIO_MAX_CHANNELS);
231    goto beach;
232  }
233  s->scratch_data = AUBIO_ARRAY(unsigned short,s->scratch_size);
234
235  return AUBIO_OK;
236
237beach:
238  return AUBIO_FAIL;
239}
240
241static
242void aubio_sink_wavwrite_write_frames(aubio_sink_wavwrite_t *s, uint_t write)
243{
244  uint_t written_frames = 0;
245
246  written_frames = fwrite(s->scratch_data, 2 * s->channels, write, s->fid);
247
248  if (written_frames != write) {
249    char errorstr[256];
250    AUBIO_STRERROR(errno, errorstr, sizeof(errorstr));
251    AUBIO_WRN("sink_wavwrite: trying to write %d frames to %s, but only %d"
252        " could be written (%s)\n", write, s->path, written_frames, errorstr);
253  }
254  s->total_frames_written += written_frames;
255}
256
257void aubio_sink_wavwrite_do(aubio_sink_wavwrite_t *s, fvec_t * write_data, uint_t write){
258  uint_t c = 0, i = 0;
259  uint_t length = aubio_sink_validate_input_length("sink_wavwrite", s->path,
260      s->max_size, write_data->length, write);
261
262  for (c = 0; c < s->channels; c++) {
263    for (i = 0; i < length; i++) {
264      s->scratch_data[i * s->channels + c] = HTOLES(FLOAT_TO_SHORT(write_data->data[i]));
265    }
266  }
267
268  aubio_sink_wavwrite_write_frames(s, length);
269}
270
271void aubio_sink_wavwrite_do_multi(aubio_sink_wavwrite_t *s, fmat_t * write_data, uint_t write){
272  uint_t c = 0, i = 0;
273
274  uint_t channels = aubio_sink_validate_input_channels("sink_wavwrite", s->path,
275      s->channels, write_data->height);
276  uint_t length = aubio_sink_validate_input_length("sink_wavwrite", s->path,
277      s->max_size, write_data->length, write);
278
279  for (c = 0; c < channels; c++) {
280    for (i = 0; i < length; i++) {
281      s->scratch_data[i * s->channels + c] = HTOLES(FLOAT_TO_SHORT(write_data->data[c][i]));
282    }
283  }
284
285  aubio_sink_wavwrite_write_frames(s, length);
286}
287
288uint_t aubio_sink_wavwrite_close(aubio_sink_wavwrite_t * s) {
289  uint_t data_size = s->total_frames_written * s->bitspersample * s->channels / 8;
290  unsigned char buf[5];
291  if (!s->fid) return AUBIO_FAIL;
292  // ChunkSize
293  fseek(s->fid, 4, SEEK_SET);
294  fwrite(write_little_endian(data_size + 36, buf, 4), 4, 1, s->fid);
295  // Subchunk2Size
296  fseek(s->fid, 40, SEEK_SET);
297  fwrite(write_little_endian(data_size, buf, 4), 4, 1, s->fid);
298  // close file
299  if (fclose(s->fid)) {
300    AUBIO_ERR("sink_wavwrite: Error closing file %s (%s)\n", s->path, strerror(errno));
301  }
302  s->fid = NULL;
303  return AUBIO_OK;
304}
305
306void del_aubio_sink_wavwrite(aubio_sink_wavwrite_t * s){
307  AUBIO_ASSERT(s);
308  if (s->fid)
309    aubio_sink_wavwrite_close(s);
310  if (s->path)
311    AUBIO_FREE(s->path);
312  if (s->scratch_data)
313    AUBIO_FREE(s->scratch_data);
314  AUBIO_FREE(s);
315}
316
317#endif /* HAVE_WAVWRITE */
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