2 Copyright (C) 2012-2014 Paul Brossier <piem@aubio.org>
4 This file is part of aubio.
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.
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.
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/>.
28 #include "aubio_priv.h"
29 #include "sink_sndfile.h"
32 #define MAX_CHANNELS 6
35 struct _aubio_sink_sndfile_t {
47 uint_t aubio_sink_sndfile_open(aubio_sink_sndfile_t *s);
49 aubio_sink_sndfile_t * new_aubio_sink_sndfile(char_t * path, uint_t samplerate) {
50 aubio_sink_sndfile_t * s = AUBIO_NEW(aubio_sink_sndfile_t);
51 s->max_size = MAX_SIZE;
55 AUBIO_ERR("sink_sndfile: Aborted opening null path\n");
62 // negative samplerate given, abort
63 if ((sint_t)samplerate < 0) goto beach;
64 // zero samplerate given. do not open yet
65 if ((sint_t)samplerate == 0) return s;
67 s->samplerate = samplerate;
70 if (aubio_sink_sndfile_open(s) != AUBIO_OK) {;
76 del_aubio_sink_sndfile(s);
80 uint_t aubio_sink_sndfile_preset_samplerate(aubio_sink_sndfile_t *s, uint_t samplerate)
82 if ((sint_t)(samplerate) <= 0) return AUBIO_FAIL;
83 s->samplerate = samplerate;
84 // automatically open when both samplerate and channels have been set
85 if (s->samplerate != 0 && s->channels != 0) {
86 return aubio_sink_sndfile_open(s);
91 uint_t aubio_sink_sndfile_preset_channels(aubio_sink_sndfile_t *s, uint_t channels)
93 if ((sint_t)(channels) <= 0) return AUBIO_FAIL;
94 s->channels = channels;
95 // automatically open when both samplerate and channels have been set
96 if (s->samplerate != 0 && s->channels != 0) {
97 return aubio_sink_sndfile_open(s);
102 uint_t aubio_sink_sndfile_get_samplerate(aubio_sink_sndfile_t *s)
104 return s->samplerate;
107 uint_t aubio_sink_sndfile_get_channels(aubio_sink_sndfile_t *s)
112 uint_t aubio_sink_sndfile_open(aubio_sink_sndfile_t *s) {
113 /* set output format */
115 AUBIO_MEMSET(&sfinfo, 0, sizeof (sfinfo));
116 sfinfo.samplerate = s->samplerate;
117 sfinfo.channels = s->channels;
118 sfinfo.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
120 /* try creating the file */
121 s->handle = sf_open (s->path, SFM_WRITE, &sfinfo);
123 if (s->handle == NULL) {
124 /* show libsndfile err msg */
125 AUBIO_ERR("sink_sndfile: Failed opening %s. %s\n", s->path, sf_strerror (NULL));
129 s->scratch_size = s->max_size*s->channels;
130 /* allocate data for de/interleaving reallocated when needed. */
131 if (s->scratch_size >= MAX_SIZE * MAX_CHANNELS) {
132 AUBIO_ERR("sink_sndfile: %d x %d exceeds maximum aubio_sink_sndfile buffer size %d\n",
133 s->max_size, s->channels, MAX_CHANNELS * MAX_CHANNELS);
136 s->scratch_data = AUBIO_ARRAY(float,s->scratch_size);
141 void aubio_sink_sndfile_do(aubio_sink_sndfile_t *s, fvec_t * write_data, uint_t write){
142 uint_t i, j, channels = s->channels;
143 int nsamples = channels*write;
145 sf_count_t written_frames;
147 if (write > s->max_size) {
148 AUBIO_WRN("trying to write %d frames, but only %d can be written at a time",
153 /* interleaving data */
154 for ( i = 0; i < channels; i++) {
155 pwrite = (smpl_t *)write_data->data;
156 for (j = 0; j < write; j++) {
157 s->scratch_data[channels*j+i] = pwrite[j];
161 written_frames = sf_write_float (s->handle, s->scratch_data, nsamples);
162 if (written_frames/channels != write) {
163 AUBIO_WRN("sink_sndfile: trying to write %d frames to %s, but only %d could be written",
164 write, s->path, (uint_t)written_frames);
169 uint_t aubio_sink_sndfile_close (aubio_sink_sndfile_t *s) {
173 if (sf_close(s->handle)) {
174 AUBIO_ERR("sink_sndfile: Error closing file %s: %s", s->path, sf_strerror (NULL));
181 void del_aubio_sink_sndfile(aubio_sink_sndfile_t * s){
183 aubio_sink_sndfile_close(s);
184 AUBIO_FREE(s->scratch_data);
188 #endif /* HAVE_SNDFILE */