matroskademux: cleanly initialize and set needed segment

Fixes #673165.

diff --git a/gst/matroska/matroska-demux.c b/gst/matroska/matroska-demux.c
index 6db85c2..c228889 100644 (file)
--- a/gst/matroska/matroska-demux.c
+++ b/gst/matroska/matroska-demux.c
@@ -3375,7 +3375,7 @@ gst_matroska_demux_parse_blockgroup_or_simpleblock (GstMatroskaDemux * demux,
 
     /* need to refresh segment info ASAP */
     if (GST_CLOCK_TIME_IS_VALID (lace_time) && demux->need_newsegment) {
-      guint64 clace_time;
+      guint64 clace_time, duration;
 
       GST_DEBUG_OBJECT (demux,
           "generating segment starting at %" GST_TIME_FORMAT,
@@ -3387,9 +3387,14 @@ gst_matroska_demux_parse_blockgroup_or_simpleblock (GstMatroskaDemux * demux,
             GST_TIME_ARGS (lace_time));
       }
       clace_time = MAX (lace_time, demux->stream_start_time);
+      duration = demux->common.segment.duration;
+      /* we really want to set, don't care much about previous state */
+      gst_segment_init (&demux->common.segment, GST_FORMAT_TIME);
       gst_segment_set_newsegment (&demux->common.segment, FALSE,
           demux->common.segment.rate, GST_FORMAT_TIME, clace_time,
           GST_CLOCK_TIME_NONE, clace_time - demux->stream_start_time);
+      gst_segment_set_duration (&demux->common.segment, GST_FORMAT_TIME,
+          duration);
       /* now convey our segment notion downstream */
       gst_matroska_demux_send_event (demux, gst_event_new_new_segment (FALSE,
               demux->common.segment.rate, demux->common.segment.format,