ADDED   channels/filter_bitrate.py
Index: channels/filter_bitrate.py
==================================================================
--- channels/filter_bitrate.py
+++ channels/filter_bitrate.py
@@ -0,0 +1,47 @@
+# encoding: UTF-8
+# api: streamtuner2
+# title: Filter Bitrate
+# description: Cleans up low-quality entries from all station lists.
+# version: 0.1
+# type: filter
+# category: audio
+# priority: optional
+# config:
+#   { name: min_bitrate_mp3, value: 32, type: select, select: "32|48|64|80|96|112|128|144|160", description: Filter MP3 streams with lesser audio quality. }
+#   [ name: min_bitrate_ogg, value: 32, type: select, select: "32|48|64|80|96|112|128|144|160", description: OggVorbis/AAC sound ok with slightly lower bitrates still. ]
+# hooks: -
+#
+# Plugin that filters radio stations on bitrate (audio quality).
+# Anything below 64 kbit/s often sounds awful for MP3 streams.
+# While AAC or Ogg Vorbis might still be acceptable sometimes.
+#
+# This functionality was previously just implemented for the Xiph
+# plugin. It's now available as generic filter for all channels.
+# Beware that some channels provide more entries with low bitrates,
+# thus might appear completely empty.
+
+
+from config import *
+import channels
+
+
+# Filter streams by bitrate
+class filter_bitrate():
+
+    meta = plugin_meta()
+    module = "filter_bitrate"
+
+    # Hijack GenericChannel.prepare
+    def __init__(self, parent):
+        channels.GenericChannel.postprocess_filters.append(self.filter_rows)
+
+    # filter bitrate
+    def filter_rows(self, row):
+        b = int(row.get("bitrate", 0))
+        if b <= 10:
+            return True
+        elif b < int(conf.min_bitrate_mp3):
+            return False
+        else:
+            return True
+

Index: channels/xiph.py
==================================================================
--- channels/xiph.py
+++ channels/xiph.py
@@ -5,11 +5,10 @@
 # type: channel
 # url: http://dir.xiph.org/
 # version: 0.5
 # category: radio
 # config: 
-#    { name: xiph_min_bitrate, value: 64, type: int, description: "Minimum bitrate; filter lesser quality streams.", category: filter }
 #    { name: xiph_source, value: web, type: select, select: "cache=JSON cache srv|xml=Clunky XML blob|web=Forbidden fruits", description: "Source for station list extraction." }
 # priority: standard
 # png:
 #   iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABHNCSVQICAgIfAhkiAAAAg5JREFUOI2lk1tIE2AUx3+7CG1tlmlG1rSEHrKgEUF7yO40taQiRj10I4qKkOaT4hIUItuTkC8hpJAQtJCICrFpzEKw
 #   h61eQorGNBOTzbEt16ZrnR5Wq3mZD/3heziX//983znngyyov+eSbHEA5WKBhs4BKVy9gsqajqwiCwo0dA5IQX5u2s4moliMPPV1nCeDzxgNBFDHE2wsKMPzsGVefobjcnO7RMfeMuL341ZBrNEGRmPqqjdvsbbf
@@ -35,13 +34,12 @@
 #
 #  → "Forbidden Fruits" extracts from dir.xiph.org HTML pages,
 #    with homepages and listener/max infos available. Also
 #    enables live server searching.
 #
-# The bitrate filter can strip any low-quality entries, but
-# retains `0` entries (which just lack meta information and
-# aren't necessarily low-bitrate.)
+# The previous bitrate filter is now a separate plugin, but
+# available for all channels.
 
 
 from config import *
 from uikit import uikit
 import ahttp
@@ -87,14 +85,10 @@
           log.PROC("Xiph mode: xml.dom.minidom to traverse yp.xml")
           r = self.from_yp_xml(cat, search)
       else:
           log.PROC("Xiph mode: extract from dir.xiph.org HTML listings")
           r = self.from_raw_html(cat, search)
-          
-      # filter bitrate
-      if conf.xiph_min_bitrate:
-          r = [row for row in r if row.get("bitrate", 0) <= 10 or row.get("bitrate", 0) >= int(conf.xiph_min_bitrate)]
 
       return r