[FFmpeg-devel] [PATCH] vp9: fix bug in updating of coef probabilities with parallelmode=1.

[James Almer]

On 23/12/13 10:20 PM, Ronald S. Bultje wrote:
> ---
>  libavcodec/vp9.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/libavcodec/vp9.c b/libavcodec/vp9.c
> index a52924c..88c5bc6 100644
> --- a/libavcodec/vp9.c
> +++ b/libavcodec/vp9.c
> @@ -3547,13 +3547,16 @@ static int vp9_decode_frame(AVCodecContext *ctx, void *frame,
>      if (s->refreshctx && s->parallelmode) {
>          int j, k, l, m;
>  
> -        for (i = 0; i < 4; i++)
> +        for (i = 0; i < 4; i++) {
>              for (j = 0; j < 2; j++)
>                  for (k = 0; k < 2; k++)
>                      for (l = 0; l < 6; l++)
>                          for (m = 0; m < 6; m++)
>                              memcpy(s->prob_ctx[s->framectxid].coef[i][j][k][l][m],
>                                     s->prob.coef[i][j][k][l][m], 3);
> +            if (s->txfmmode == i)
> +                break;
> +        }
>          s->prob_ctx[s->framectxid].p = s->prob.p;
>          ff_thread_finish_setup(ctx);
>      }
> 

This fixes ticket #3228, so you could mention that in the commit.

Regards.