ref: 8b210a928845d530e9a21284c410a772a8fa7880
dir: /src/io/sink_sndfile.c/
/*
Copyright (C) 2012-2014 Paul Brossier <piem@aubio.org>
This file is part of aubio.
aubio 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 3 of the License, or
(at your option) any later version.
aubio 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 aubio. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#ifdef HAVE_SNDFILE
#include <sndfile.h>
#include "aubio_priv.h"
#include "fvec.h"
#include "fmat.h"
#include "io/sink_sndfile.h"
#include "io/ioutils.h"
#define MAX_CHANNELS 6
#define MAX_SIZE 4096
#if !HAVE_AUBIO_DOUBLE
#define aubio_sf_write_smpl sf_write_float
#else /* HAVE_AUBIO_DOUBLE */
#define aubio_sf_write_smpl sf_write_double
#endif /* HAVE_AUBIO_DOUBLE */
struct _aubio_sink_sndfile_t {
uint_t samplerate;
uint_t channels;
char_t *path;
uint_t max_size;
SNDFILE *handle;
uint_t scratch_size;
smpl_t *scratch_data;
};
uint_t aubio_sink_sndfile_open(aubio_sink_sndfile_t *s);
aubio_sink_sndfile_t * new_aubio_sink_sndfile(const char_t * path, uint_t samplerate) {
aubio_sink_sndfile_t * s = AUBIO_NEW(aubio_sink_sndfile_t);
s->max_size = MAX_SIZE;
if (path == NULL) {
AUBIO_ERR("sink_sndfile: Aborted opening null path\n");
return NULL;
}
if (s->path) AUBIO_FREE(s->path);
s->path = AUBIO_ARRAY(char_t, strnlen(path, PATH_MAX) + 1);
strncpy(s->path, path, strnlen(path, PATH_MAX) + 1);
s->samplerate = 0;
s->channels = 0;
// zero samplerate given. do not open yet
if ((sint_t)samplerate == 0) {
return s;
}
// invalid samplerate given, abort
if (aubio_io_validate_samplerate("sink_sndfile", s->path, samplerate)) {
goto beach;
}
s->samplerate = samplerate;
s->channels = 1;
if (aubio_sink_sndfile_open(s) != AUBIO_OK) {;
goto beach;
}
return s;
beach:
del_aubio_sink_sndfile(s);
return NULL;
}
uint_t aubio_sink_sndfile_preset_samplerate(aubio_sink_sndfile_t *s, uint_t samplerate)
{
if (aubio_io_validate_samplerate("sink_sndfile", s->path, samplerate)) {
return AUBIO_FAIL;
}
s->samplerate = samplerate;
// automatically open when both samplerate and channels have been set
if (s->samplerate != 0 && s->channels != 0) {
return aubio_sink_sndfile_open(s);
}
return AUBIO_OK;
}
uint_t aubio_sink_sndfile_preset_channels(aubio_sink_sndfile_t *s, uint_t channels)
{
if (aubio_io_validate_channels("sink_sndfile", s->path, channels)) {
return AUBIO_FAIL;
}
s->channels = channels;
// automatically open when both samplerate and channels have been set
if (s->samplerate != 0 && s->channels != 0) {
return aubio_sink_sndfile_open(s);
}
return AUBIO_OK;
}
uint_t aubio_sink_sndfile_get_samplerate(const aubio_sink_sndfile_t *s)
{
return s->samplerate;
}
uint_t aubio_sink_sndfile_get_channels(const aubio_sink_sndfile_t *s)
{
return s->channels;
}
uint_t aubio_sink_sndfile_open(aubio_sink_sndfile_t *s) {
/* set output format */
SF_INFO sfinfo;
AUBIO_MEMSET(&sfinfo, 0, sizeof (sfinfo));
sfinfo.samplerate = s->samplerate;
sfinfo.channels = s->channels;
sfinfo.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
/* try creating the file */
s->handle = sf_open (s->path, SFM_WRITE, &sfinfo);
if (s->handle == NULL) {
/* show libsndfile err msg */
AUBIO_ERR("sink_sndfile: Failed opening \"%s\" with %d channels, %dHz: %s\n",
s->path, s->channels, s->samplerate, sf_strerror (NULL));
return AUBIO_FAIL;
}
s->scratch_size = s->max_size*s->channels;
/* allocate data for de/interleaving reallocated when needed. */
if (s->scratch_size >= MAX_SIZE * MAX_CHANNELS) {
AUBIO_ERR("sink_sndfile: %d x %d exceeds maximum aubio_sink_sndfile buffer size %d\n",
s->max_size, s->channels, MAX_CHANNELS * MAX_CHANNELS);
return AUBIO_FAIL;
}
s->scratch_data = AUBIO_ARRAY(smpl_t,s->scratch_size);
return AUBIO_OK;
}
void aubio_sink_sndfile_do(aubio_sink_sndfile_t *s, fvec_t * write_data, uint_t write){
uint_t i, j, channels = s->channels;
int nsamples = 0;
smpl_t *pwrite;
sf_count_t written_frames;
if (write > s->max_size) {
AUBIO_WRN("sink_sndfile: trying to write %d frames, but only %d can be written at a time\n",
write, s->max_size);
write = s->max_size;
}
nsamples = channels * write;
/* interleaving data */
for ( i = 0; i < channels; i++) {
pwrite = (smpl_t *)write_data->data;
for (j = 0; j < write; j++) {
s->scratch_data[channels*j+i] = pwrite[j];
}
}
written_frames = aubio_sf_write_smpl (s->handle, s->scratch_data, nsamples);
if (written_frames/channels != write) {
AUBIO_WRN("sink_sndfile: trying to write %d frames to %s, but only %d could be written\n",
write, s->path, (uint_t)written_frames);
}
return;
}
void aubio_sink_sndfile_do_multi(aubio_sink_sndfile_t *s, fmat_t * write_data, uint_t write){
uint_t i, j, channels = s->channels;
int nsamples = 0;
smpl_t *pwrite;
sf_count_t written_frames;
if (write > s->max_size) {
AUBIO_WRN("sink_sndfile: trying to write %d frames, but only %d can be written at a time\n",
write, s->max_size);
write = s->max_size;
}
nsamples = channels * write;
/* interleaving data */
for ( i = 0; i < write_data->height; i++) {
pwrite = (smpl_t *)write_data->data[i];
for (j = 0; j < write; j++) {
s->scratch_data[channels*j+i] = pwrite[j];
}
}
written_frames = aubio_sf_write_smpl (s->handle, s->scratch_data, nsamples);
if (written_frames/channels != write) {
AUBIO_WRN("sink_sndfile: trying to write %d frames to %s, but only %d could be written\n",
write, s->path, (uint_t)written_frames);
}
return;
}
uint_t aubio_sink_sndfile_close (aubio_sink_sndfile_t *s) {
if (!s->handle) {
return AUBIO_FAIL;
}
if (sf_close(s->handle)) {
AUBIO_ERR("sink_sndfile: Error closing file %s: %s", s->path, sf_strerror (NULL));
return AUBIO_FAIL;
}
s->handle = NULL;
return AUBIO_OK;
}
void del_aubio_sink_sndfile(aubio_sink_sndfile_t * s){
if (!s) return;
if (s->path) AUBIO_FREE(s->path);
aubio_sink_sndfile_close(s);
AUBIO_FREE(s->scratch_data);
AUBIO_FREE(s);
}
#endif /* HAVE_SNDFILE */