pitch: preserve seek event seqnums
This was wreaking havoc when used with a downstream audiomixer.
https://bugzilla.gnome.org/show_bug.cgi?id=796603
diff --git a/ext/soundtouch/gstpitch.cc b/ext/soundtouch/gstpitch.cc
index 41b6621..c529bd7 100644
--- a/ext/soundtouch/gstpitch.cc
+++ b/ext/soundtouch/gstpitch.cc
@@ -424,6 +424,7 @@
GstSeekType cur_type, stop_type;
gint64 cur, stop;
gfloat stream_time_ratio;
+ guint32 seqnum;
GST_OBJECT_LOCK (pitch);
stream_time_ratio = pitch->priv->stream_time_ratio;
@@ -432,6 +433,8 @@
gst_event_parse_seek (event, &rate, &format, &flags,
&cur_type, &cur, &stop_type, &stop);
+ seqnum = gst_event_get_seqnum (event);
+
gst_event_unref (event);
if (format == GST_FORMAT_TIME || format == GST_FORMAT_DEFAULT) {
@@ -441,6 +444,7 @@
event = gst_event_new_seek (rate, format, flags,
cur_type, cur, stop_type, stop);
+ gst_event_set_seqnum (event, seqnum);
res = gst_pad_event_default (pad, parent, event);
} else {
GST_WARNING_OBJECT (pitch,
