From b19ef0df3081996a431f64494eba60e1f0ce05f5 Mon Sep 17 00:00:00 2001
From: Mark Nauwelaerts <mnauw@users.sourceforge.net>
Date: Thu, 8 Jun 2017 16:39:06 +0200
Subject: [PATCH] matroskademux: maintain variable state when searching for
 position

... so skipping to next cluster happens efficiently
---
 gst/matroska/matroska-demux.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gst/matroska/matroska-demux.c b/gst/matroska/matroska-demux.c
index 2fe5b3b72f..75606cdf41 100644
--- a/gst/matroska/matroska-demux.c
+++ b/gst/matroska/matroska-demux.c
@@ -1811,6 +1811,7 @@ gst_matroska_demux_search_pos (GstMatroskaDemux * demux, GstClockTime time)
   GstClockTime otime, prev_cluster_time, current_cluster_time, cluster_time;
   gint64 opos, newpos, startpos = 0, current_offset;
   gint64 prev_cluster_offset = -1, current_cluster_offset, cluster_offset;
+  guint64 cluster_size = 0;
   const guint chunk = 64 * 1024;
   GstFlowReturn ret;
   guint64 length;
@@ -1901,9 +1902,8 @@ retry:
    * re-estimate if overshoot, otherwise next cluster and so on */
   demux->common.offset = newpos;
   demux->cluster_time = cluster_time = GST_CLOCK_TIME_NONE;
+  cluster_size = 0;
   while (1) {
-    guint64 cluster_size = 0;
-
     /* peek and parse some elements */
     ret = gst_matroska_read_common_peek_id_length_pull (&demux->common,
         GST_ELEMENT_CAST (demux), &id, &length, &needed);