This is not allowed per the spec.
Signed-off-by: Vignesh Venkatasubramanian <vigne...@google.com>
---
libavformat/mov.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 294c864fbd..a8f57f9281 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -4892,6 +4892,8 @@ static int avif_add_stream(MOVContext *c, int item_id)
{
MOVStreamContext *sc;
AVStream *st;
+ if (c->fc->nb_streams)
+ return AVERROR_INVALIDDATA;
int item_index = -1;
for (int i = 0; i < c->avif_info_size; i++)
if (c->avif_info[i].item_id == item_id) {
--
2.42.0.582.g8ccd20d70d-goog
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