gsmdec: Require caps to be set before any data processing

diff --git a/ext/gsm/gstgsmdec.c b/ext/gsm/gstgsmdec.c
index fc182cd..95c2c11 100644 (file)
--- a/ext/gsm/gstgsmdec.c
+++ b/ext/gsm/gstgsmdec.c
@@ -104,6 +104,7 @@ gst_gsmdec_class_init (GstGSMDecClass * klass)
 static void
 gst_gsmdec_init (GstGSMDec * gsmdec)
 {
+  gst_audio_decoder_set_needs_format (GST_AUDIO_DECODER (gsmdec), TRUE);
 }
 
 static gboolean