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src/io/sink_sndfile.c: fix for double precision

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

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

@@ -33,6 +33,12 @@

 #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;

@@ -134,7 +140,7 @@

         s->max_size, s->channels, MAX_CHANNELS * MAX_CHANNELS);

     return AUBIO_FAIL;

   }

-  s->scratch_data = AUBIO_ARRAY(float,s->scratch_size);

+  s->scratch_data = AUBIO_ARRAY(smpl_t,s->scratch_size);

   return AUBIO_OK;

 }

@@ -161,7 +167,7 @@

     }

   }

-  written_frames = sf_write_float (s->handle, s->scratch_data, nsamples);

+  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);

@@ -191,7 +197,7 @@

     }

   }

-  written_frames = sf_write_float (s->handle, s->scratch_data, nsamples);

+  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);