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-rw-r--r--libmpdemux/demux_mkv.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libmpdemux/demux_mkv.c b/libmpdemux/demux_mkv.c
index 00dfe3ae08..982f04062d 100644
--- a/libmpdemux/demux_mkv.c
+++ b/libmpdemux/demux_mkv.c
@@ -326,6 +326,10 @@ static int demux_mkv_decode(mkv_track_t *track, uint8_t *src,
#if CONFIG_ZLIB
if (track->encodings[i].comp_algo == 0) {
/* zlib encoded track */
+
+ if (*size == 0)
+ continue;
+
z_stream zstream;
zstream.zalloc = (alloc_func) 0;