From 2375b7f0a0c29b047594433c4c7689d718df209e Mon Sep 17 00:00:00 2001
From: NoiseByNorthwest <noisebynorthwest@gmail.com>
Date: Mon, 18 Feb 2013 22:21:27 +0100
Subject: [PATCH] Fixes #3604316: LMMS crashes using AudioFileProcessor

Signed-off-by: Tobias Doerffel <tobias.doerffel@gmail.com>
---
 plugins/audio_file_processor/audio_file_processor.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/plugins/audio_file_processor/audio_file_processor.cpp b/plugins/audio_file_processor/audio_file_processor.cpp
index 208a03d9d..729e9e429 100644
--- a/plugins/audio_file_processor/audio_file_processor.cpp
+++ b/plugins/audio_file_processor/audio_file_processor.cpp
@@ -927,6 +927,10 @@ void AudioFileProcessorWaveView::slideSamplePointByFrames( knobType _point, f_cn
 
 void AudioFileProcessorWaveView::slideSampleByFrames( f_cnt_t _frames )
 {
+	if( m_sampleBuffer.frames() <= 1 )
+	{
+		return;
+	}
 	const double v = double( _frames ) / m_sampleBuffer.frames();
 	m_startKnob->slideBy( v, false );
 	m_endKnob->slideBy( v, false );