From: yomguy <yomguy@parisson.com>
Date: Wed, 13 Mar 2013 10:28:47 +0000 (+0100)
Subject: fix empty frames in analyzers
X-Git-Tag: 0.4.4~9^2
X-Git-Url: https://git.parisson.com/?a=commitdiff_plain;h=7cd46a8e2e491f8e85e94bf3f12c89a91cfda346;p=timeside.git

fix empty frames in analyzers
---

diff --git a/timeside/analyzer/dc.py b/timeside/analyzer/dc.py
index b10d3f9..9d47787 100644
--- a/timeside/analyzer/dc.py
+++ b/timeside/analyzer/dc.py
@@ -51,7 +51,8 @@ class MeanDCShift(Processor):
         return "%s %s" % (str(self.value), unit())
 
     def process(self, frames, eod=False):
-        self.values = numpy.append(self.values, numpy.mean(frames))
+        if frames.size:
+            self.values = numpy.append(self.values, numpy.mean(frames))
         return frames, eod
 
     def result(self):
diff --git a/timeside/analyzer/max_level.py b/timeside/analyzer/max_level.py
index a41f631..5dd251a 100644
--- a/timeside/analyzer/max_level.py
+++ b/timeside/analyzer/max_level.py
@@ -50,9 +50,10 @@ class MaxLevel(Processor):
         return "dBFS"
 
     def process(self, frames, eod=False):
-        max = frames.max()
-        if max > self.value:
-            self.value = max
+        if frames.size:
+            max = frames.max()
+            if max > self.value:
+                self.value = max
         return frames, eod
 
     def result(self):
diff --git a/timeside/analyzer/mean_level.py b/timeside/analyzer/mean_level.py
index 1b67ee6..33bae26 100644
--- a/timeside/analyzer/mean_level.py
+++ b/timeside/analyzer/mean_level.py
@@ -52,7 +52,8 @@ class MeanLevel(Processor):
         return "%s %s" % (str(self.value), unit())
 
     def process(self, frames, eod=False):
-        self.values = numpy.append(self.values, numpy.mean(numpy.square(frames)))
+        if frames.size:
+            self.values = numpy.append(self.values, numpy.mean(numpy.square(frames)))
         return frames, eod
 
     def result(self):