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src/io/sink_sndfile.c: add missing do_multi

--- a/src/io/sink_sndfile.c

+++ b/src/io/sink_sndfile.c

@@ -26,8 +26,9 @@

 #include <sndfile.h>

 #include "aubio_priv.h"

-#include "sink_sndfile.h"

 #include "fvec.h"

+#include "fmat.h"

+#include "io/sink_sndfile.h"

 #define MAX_CHANNELS 6

 #define MAX_SIZE 4096

@@ -153,6 +154,34 @@

   /* 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 = sf_write_float (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",

+      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 = channels*write;

+  smpl_t *pwrite;

+  sf_count_t written_frames;

+

+  if (write > s->max_size) {

+    AUBIO_WRN("trying to write %d frames, but only %d can be written at a time",

+      write, s->max_size);

+    write = s->max_size;

+  }

+

+  /* 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];

     }