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-rw-r--r--libavformat/mov.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c
index bf9e58197b..ff5a55d0e6 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -5407,6 +5407,9 @@ static int mov_read_smdm(MOVContext *c, AVIOContext *pb, MOVAtom atom)
av_log(c->fc, AV_LOG_WARNING, "Unsupported Mastering Display Metadata box version %d\n", version);
return 0;
}
+ if (sc->mastering)
+ return AVERROR_INVALIDDATA;
+
avio_skip(pb, 3); /* flags */
sc->mastering = av_mastering_display_metadata_alloc();