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src/temporal/resampler.{c,h}: use smpl_t, and convet that to a double for libsamplerate

--- a/src/temporal/resampler.c

+++ b/src/temporal/resampler.c

@@ -30,11 +30,11 @@

 struct _aubio_resampler_t {

 	SRC_DATA  *proc;

 	SRC_STATE *stat;

-	float ratio;

+	smpl_t ratio;

 	uint_t type;

 };

-aubio_resampler_t * new_aubio_resampler(float ratio, uint_t type) {

+aubio_resampler_t * new_aubio_resampler(smpl_t ratio, uint_t type) {

 	aubio_resampler_t * s  = AUBIO_NEW(aubio_resampler_t);

 	int error = 0;

 	s->stat = src_new (type, 1, &error) ; /* only one channel */

@@ -55,7 +55,7 @@

 	uint_t i ;

 	s->proc->input_frames = input->length;

 	s->proc->output_frames = output->length;

-	s->proc->src_ratio = s->ratio;

+	s->proc->src_ratio = (double)s->ratio;

 	for (i = 0 ; i< input->channels; i++) 

 	{

 		/* make SRC_PROC data point to input outputs */

--- a/src/temporal/resampler.h

+++ b/src/temporal/resampler.h

@@ -42,7 +42,7 @@

   \param type libsamplerate resampling type

 */

-aubio_resampler_t * new_aubio_resampler(float ratio, uint_t type);

+aubio_resampler_t * new_aubio_resampler(smpl_t ratio, uint_t type);

 /** delete resampler object */

 void del_aubio_resampler(aubio_resampler_t *s);