From: Limin Wang <lance.lmw...@gmail.com>
Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
---
libavutil/detection_bbox.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/libavutil/detection_bbox.c b/libavutil/detection_bbox.c
index d066567..8bfdff7 100644
--- a/libavutil/detection_bbox.c
+++ b/libavutil/detection_bbox.c
@@ -21,10 +21,11 @@
AVDetectionBBoxHeader *av_detection_bbox_alloc(uint32_t nb_bboxes, size_t
*out_size)
{
size_t size;
- struct {
+ struct BBoxContext {
AVDetectionBBoxHeader header;
AVDetectionBBox boxes[1];
} *ret;
+ const size_t bboxes_offset = offsetof(struct BBoxContext, boxes);
size = sizeof(*ret);
if (nb_bboxes - 1 > (SIZE_MAX - size) / sizeof(*ret->boxes))
@@ -37,7 +38,7 @@ AVDetectionBBoxHeader *av_detection_bbox_alloc(uint32_t
nb_bboxes, size_t *out_s
ret->header.nb_bboxes = nb_bboxes;
ret->header.bbox_size = sizeof(*ret->boxes);
- ret->header.bboxes_offset = (char *)&ret->boxes - (char *)&ret->header;
+ ret->header.bboxes_offset = bboxes_offset;
if (out_size)
*out_size = size;
--
1.8.3.1
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