From 41b03de299307f3683dc0ed63cea2e14fb158ef8 Mon Sep 17 00:00:00 2001
From: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Date: Wed, 20 Nov 2019 13:26:59 +0100
Subject: [PATCH] avformat/matroskadec: Fix default value of BlockAddID

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit dbc50f8a935043243232b2e01f3c012ab6d49928)
---
 libavformat/matroskadec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 2b42cff9a8..87ff2db86d 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -684,7 +684,7 @@ static const EbmlSyntax matroska_segments[] = {
 };
 
 static const EbmlSyntax matroska_blockmore[] = {
-    { MATROSKA_ID_BLOCKADDID,      EBML_UINT, 0, offsetof(MatroskaBlock,additional_id) },
+    { MATROSKA_ID_BLOCKADDID,      EBML_UINT, 0, offsetof(MatroskaBlock,additional_id), { .u = 1 } },
     { MATROSKA_ID_BLOCKADDITIONAL, EBML_BIN,  0, offsetof(MatroskaBlock,additional) },
     { 0 }
 };