On Tue, Jul 15, 2025 at 10:33:10AM -0300, James Almer wrote:
> Fixes: libavcodec/motion_est.c:94:31: runtime error: applying zero offset to null pointer
> Signed-off-by: James Almer <jamrial@gmail.com>
> ---
>  libavcodec/motion_est.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/libavcodec/motion_est.c b/libavcodec/motion_est.c
> index 93be712cc0..3273451f9a 100644
> --- a/libavcodec/motion_est.c
> +++ b/libavcodec/motion_est.c
> @@ -91,12 +91,12 @@ static inline void init_ref(MotionEstContext *c, uint8_t *const src[3],
>      };
>      int i;
>      for(i=0; i<3; i++){
> -        c->src[0][i]= src [i] + offset[i];
> -        c->ref[0][i]= ref [i] + offset[i];
> +        c->src[0][i]= src[i] ? FF_PTR_ADD(src[i], offset[i]) : NULL;
> +        c->ref[0][i]= ref[i] ? FF_PTR_ADD(ref[i], offset[i]) : NULL;

why does this need FF_PTR_ADD() when the pointer is not NULL ?

patch is ok except that

thx

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