From 40a5194276dcd109ff325cd32179caca5732a111 Mon Sep 17 00:00:00 2001
From: Dimitri Stolnikov <horiz0n@gmx.net>
Date: Sat, 28 Sep 2013 13:40:03 +0200
Subject: [PATCH] apps: filter bandwidth follows sample rate in osmocom_fft

---
 apps/osmocom_fft | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/apps/osmocom_fft b/apps/osmocom_fft
index 5513e06..7602bb4 100755
--- a/apps/osmocom_fft
+++ b/apps/osmocom_fft
@@ -121,6 +121,7 @@ class app_top_block(stdgui2.std_top_block, pubsub):
             options.center_freq = float(r.start()+r.stop())/2
 
         input_rate = self.src.set_sample_rate(options.samp_rate)
+        self.src.set_bandwidth(input_rate)
 
         self.src.set_gain(options.gain)
 
@@ -410,6 +411,12 @@ class app_top_block(stdgui2.std_top_block, pubsub):
         self.scope.set_sample_rate(samp_rate)
         if self._verbose:
             print "Set sample rate to:", samp_rate
+
+        try:
+            self[BWIDTH_KEY] = self.set_bandwidth(samp_rate)
+        except RuntimeError:
+            pass
+
         return samp_rate
 
     def get_gain_names(self):
@@ -436,6 +443,8 @@ class app_top_block(stdgui2.std_top_block, pubsub):
             if self._verbose:
                 print "Set bandwidth to:", bw
 
+        return bw
+
     def set_freq_from_callback(self, freq):
         freq = self.src.set_center_freq(freq)
         self[CENTER_FREQ_KEY] = freq;