[transmageddon] Fix bug for audio only streams

[Christian Fredrik Kalager Schaller <uraeus src gnome org>]

commit c49a46e1ffe7b2fadd515851b15009b664cf3fc2
Author: Christian Fredrik Kalager Schaller <christian schaller collabora co uk>
Date:   Sat Oct 15 19:38:27 2011 +0100

    Fix bug for audio only streams

 src/transcoder_engine.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/transcoder_engine.py b/src/transcoder_engine.py
index 60c0991..c69d88c 100644
--- a/src/transcoder_engine.py
+++ b/src/transcoder_engine.py
@@ -328,7 +328,7 @@ class Transcoder(gobject.GObject):
    def OnDynamicPad(self, uridecodebin, src_pad):
        origin = src_pad.get_caps()
        if (self.container==False):
-           a =  origin.get_caps().to_string()
+           a =  origin.to_string()
            if a.startswith("audio/"):
                sinkpad = self.encodebin.get_static_pad("audio_0")
                src_pad.link(sinkpad)