It is sane, but UB. It could happen in case of allocation errors
in vc2_encode_init().
Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
libavcodec/vc2enc_dwt.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/libavcodec/vc2enc_dwt.c b/libavcodec/vc2enc_dwt.c
index a8d3f1c669..441af040ec 100644
--- a/libavcodec/vc2enc_dwt.c
+++ b/libavcodec/vc2enc_dwt.c
@@ -276,6 +276,8 @@ av_cold int ff_vc2enc_init_transforms(VC2TransformContext
*s, int p_stride,
av_cold void ff_vc2enc_free_transforms(VC2TransformContext *s)
{
- av_free(s->buffer - s->padding);
- s->buffer = NULL;
+ if (s->buffer) {
+ av_free(s->buffer - s->padding);
+ s->buffer = NULL;
+ }
}
--
2.32.0
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