On Mon, 20 Jan 2014 11:25:32 +0100, Luca Barbato <[email protected]> wrote:
> From: Michael Niedermayer <[email protected]>
> 
> Keep qp fields within the range.
> 
> Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
> Signed-off-by: Luca Barbato <[email protected]>
> ---
>  libavcodec/hevc.c        | 4 ++--
>  libavcodec/hevc_filter.c | 4 ++--
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/libavcodec/hevc.c b/libavcodec/hevc.c
> index 438794d..d5175f5 100644
> --- a/libavcodec/hevc.c
> +++ b/libavcodec/hevc.c
> @@ -771,8 +771,8 @@ static int hls_slice_header(HEVCContext *s)
>      s->HEVClc.first_qp_group = !s->sh.dependent_slice_segment_flag;
>  
>      if (!s->pps->cu_qp_delta_enabled_flag)
> -        s->HEVClc.qp_y = ((s->sh.slice_qp + 52 + 2 * s->sps->qp_bd_offset) %
> -                          (52 + s->sps->qp_bd_offset)) - 
> s->sps->qp_bd_offset;
> +        s->HEVClc.qp_y = FFUMOD(s->sh.slice_qp + 52 + 2 * 
> s->sps->qp_bd_offset,
> +                                52 + s->sps->qp_bd_offset) - 
> s->sps->qp_bd_offset;
>  
>      s->slice_initialized = 1;
>  
> diff --git a/libavcodec/hevc_filter.c b/libavcodec/hevc_filter.c
> index bb1e360..f3c6554 100644
> --- a/libavcodec/hevc_filter.c
> +++ b/libavcodec/hevc_filter.c
> @@ -158,8 +158,8 @@ void ff_hevc_set_qPy(HEVCContext *s, int xC, int yC,
>  
>      if (s->HEVClc.tu.cu_qp_delta != 0) {
>          int off = s->sps->qp_bd_offset;
> -        s->HEVClc.qp_y = ((qp_y + s->HEVClc.tu.cu_qp_delta + 52 + 2 * off) %
> -                          (52 + off)) - off;
> +        s->HEVClc.qp_y = FFUMOD(qp_y + s->HEVClc.tu.cu_qp_delta + 52 + 2 * 
> off,
> +                                52 + off) - off;
>      } else
>          s->HEVClc.qp_y = qp_y;
>  }
> -- 
> 1.8.5.1
> 

Ok, assuming the macro names are fixed as requested for the previous patch.

-- 
Anton Khirnov
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