Fixes a crash with ISOBMFF extradata containing no OBUs.
Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
libavcodec/av1_metadata_bsf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/av1_metadata_bsf.c b/libavcodec/av1_metadata_bsf.c
index 8cafe461d1..328db5c0da 100644
--- a/libavcodec/av1_metadata_bsf.c
+++ b/libavcodec/av1_metadata_bsf.c
@@ -120,7 +120,7 @@ static int av1_metadata_update_fragment(AVBSFContext *bsf,
AVPacket *pkt,
}
// If a Temporal Delimiter is present, it must be the first OBU.
- if (frag->units[0].type == AV1_OBU_TEMPORAL_DELIMITER) {
+ if (frag->nb_units && frag->units[0].type == AV1_OBU_TEMPORAL_DELIMITER) {
if (ctx->td == BSF_ELEMENT_REMOVE)
ff_cbs_delete_unit(frag, 0);
} else if (pkt && ctx->td == BSF_ELEMENT_INSERT) {
--
2.27.0
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