From 290f67735db3d310b3f60cef7dccb14693310661 Mon Sep 17 00:00:00 2001
From: Jakob Ketterl <jakob.ketterl@gmx.de>
Date: Sun, 2 May 2021 00:06:50 +0200
Subject: [PATCH] improve decoding file switchover

---
 owrx/audio/wav.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/owrx/audio/wav.py b/owrx/audio/wav.py
index 253e905..4843c25 100644
--- a/owrx/audio/wav.py
+++ b/owrx/audio/wav.py
@@ -56,7 +56,9 @@ class AudioWriter(object):
         return WaveFile(filename)
 
     def getNextDecodingTime(self):
-        t = datetime.utcnow()
+        # add one second to have the intervals tick over one second earlier
+        # this avoids filename collisions, but also avoids decoding wave files with less than one second of audio
+        t = datetime.utcnow() + timedelta(seconds=1)
         zeroed = t.replace(minute=0, second=0, microsecond=0)
         delta = t - zeroed
         seconds = (int(delta.total_seconds() / self.interval) + 1) * self.interval