decodebin: Only emit the drain signal for the main decode chain, not any subchains

https://bugzilla.gnome.org/show_bug.cgi?id=738064

diff --git a/gst/playback/gstdecodebin2.c b/gst/playback/gstdecodebin2.c
index 3f64b58bd14571cdfebb12d7908c755a539d20f9..fe9ad3f1e81e13ca8064fda9ea97c5e4b44d7bb1 100644 (file)
--- a/gst/playback/gstdecodebin2.c
+++ b/gst/playback/gstdecodebin2.c
@@ -3743,7 +3743,7 @@ beach:
 
   *drained = chain->drained;
 
-  if (*drained)
+  if (*drained && chain == dbin->decode_chain)
     g_signal_emit (dbin, gst_decode_bin_signals[SIGNAL_DRAINED], 0, NULL);
 
   return handled;