From 27a2980a5624d117f07bff816c9af6b0911dcc31 Mon Sep 17 00:00:00 2001
From: Chris Cannam <cannam@all-day-breakfast.com>
Date: Fri, 14 May 2021 15:10:24 +0100
Subject: [PATCH] Restore original behaviour of pre-fill/start-skip

---
 src/StretcherImpl.cpp    | 7 +++----
 src/StretcherProcess.cpp | 4 +---
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/src/StretcherImpl.cpp b/src/StretcherImpl.cpp
index 7869d08..0794156 100644
--- a/src/StretcherImpl.cpp
+++ b/src/StretcherImpl.cpp
@@ -64,7 +64,7 @@ const size_t
 RubberBandStretcher::Impl::m_defaultFftSize = 2048;
 
 int
-RubberBandStretcher::Impl::m_defaultDebugLevel = 2;
+RubberBandStretcher::Impl::m_defaultDebugLevel = 0;
 
 static bool _initialised = false;
 
@@ -740,12 +740,11 @@ RubberBandStretcher::Impl::configure()
     // number of onset detector chunks will be the number of audio
     // samples input, divided by the input increment, plus one.
 
-    //!!!
     // In real-time mode, we don't do this prefill -- it's better to
     // start with a swoosh than introduce more latency, and we don't
     // want gaps when the ratio changes.
 
-//    if (!m_realtime) {
+    if (!m_realtime) {
         if (m_debugLevel > 1) {
             cerr << "Not real time mode: prefilling with " << m_aWindowSize/2 << " samples" << endl;
         }
@@ -753,7 +752,7 @@ RubberBandStretcher::Impl::configure()
             m_channelData[c]->reset();
             m_channelData[c]->inbuf->zero(m_aWindowSize/2);
         }
-//    }
+    }
 }
 
 
diff --git a/src/StretcherProcess.cpp b/src/StretcherProcess.cpp
index 87ab89c..cf6f545 100644
--- a/src/StretcherProcess.cpp
+++ b/src/StretcherProcess.cpp
@@ -1152,12 +1152,10 @@ RubberBandStretcher::Impl::writeOutput(RingBuffer<float> &to, float *from, size_
     // samples, because the first chunk is centred on the start of the
     // output.  In RT mode we didn't apply any pre-padding in
     // configure(), so we don't want to remove any here.
-//!!!
+
     size_t startSkip = 0;
     if (!m_realtime) {
-    //!!! lock down the latency to this initial value in RT mode
         startSkip = lrintf((m_sWindowSize/2) / m_pitchScale);
-//    startSkip = m_sWindowSize/2;
     }
 
     if (outCount > startSkip) {