The bug reporter confirmed the fix.
https://trac.ffmpeg.org/ticket/8932
ping for review and merge.
thanks
On Fri, Oct 16, 2020 at 9:57 PM Xu Guangxin <oddst...@gmail.com> wrote:
> fix ticket: 8932
>
> For poc 2, we have tile boundary at x = 640.
> When we predict cu(640,912),the top left pixel is not avaliable to the cu.
> So, we can not check it's intra or not. We need set top[-1] = top[0]
> directly.
> see 8.4.4.2.1 for details
> ---
> libavcodec/hevcpred_template.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libavcodec/hevcpred_template.c
> b/libavcodec/hevcpred_template.c
> index 6fe33546b1..e550707874 100644
> --- a/libavcodec/hevcpred_template.c
> +++ b/libavcodec/hevcpred_template.c
> @@ -213,7 +213,7 @@ do { \
> while (j < size_max_x && !IS_INTRA(j, -1))
> j++;
> if (j > 0)
> - if (x0 > 0) {
> + if (cand_up_left) {
> EXTEND_LEFT_CIP(top, j, j + 1);
> } else {
> EXTEND_LEFT_CIP(top, j, j);
> --
> 2.17.1
>
>
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