From 2d128dafb33d3724aef11a383d6220c856c5fb49 Mon Sep 17 00:00:00 2001
From: Paul Brossier <piem@piem.org>
Date: Sun, 18 Sep 2016 12:54:10 +0200
Subject: [PATCH] src/effects/pitchshift.h: add aubio_pitchshift_get_latency

---
 src/effects/pitchshift.c | 8 ++++++++
 src/effects/pitchshift.h | 9 +++++++++
 2 files changed, 17 insertions(+)

diff --git a/src/effects/pitchshift.c b/src/effects/pitchshift.c
index f94c474c..ed22c3d6 100644
--- a/src/effects/pitchshift.c
+++ b/src/effects/pitchshift.c
@@ -97,6 +97,10 @@ del_aubio_pitchshift (aubio_pitchshift_t * p)
   AUBIO_FREE (p);
 }
 
+uint_t aubio_pitchshift_get_latency (aubio_pitchshift_t * p) {
+  return rubberband_get_latency(p->rb);
+}
+
 uint_t
 aubio_pitchshift_set_pitchscale (aubio_pitchshift_t * p, smpl_t pitchscale)
 {
@@ -188,6 +192,10 @@ smpl_t aubio_pitchshift_get_transpose (aubio_pitchshift_t * o UNUSED) {
   return 0.;
 }
 
+uint_t aubio_pitchshift_get_latency (aubio_pitchshift_t * o UNUSED) {
+  return 0.;
+}
+
 // end of dummy implementation
 
 #endif /* HAVE_RUBBERBAND */
diff --git a/src/effects/pitchshift.h b/src/effects/pitchshift.h
index 40ffd53e..ee4d079d 100644
--- a/src/effects/pitchshift.h
+++ b/src/effects/pitchshift.h
@@ -67,6 +67,15 @@ void del_aubio_pitchshift (aubio_pitchshift_t * o);
 aubio_pitchshift_t *new_aubio_pitchshift (const char_t * method,
     smpl_t pitchscale, uint_t hop_size, uint_t samplerate);
 
+/** get the latency of the pitch shifting object, in samples
+
+  \param o pitch shifting object as returned by ::new_aubio_pitchshift()
+
+  \return latency of the pitch shifting object in samples
+
+*/
+uint_t aubio_pitchshift_get_latency (aubio_pitchshift_t * o);
+
 /** set the pitch scale of the pitch shifting object
 
   \param o pitch shifting object as returned by new_aubio_pitchshift()
-- 
2.11.0