[FFmpeg-devel] [PATCH 4/5] avcodec/proresdec_lgpl: use av_mod_uintp2

[Michael Niedermayer]

On Wed, Jan 20, 2016 at 03:04:07PM -0300, James Almer wrote:
> Signed-off-by: James Almer <jamrial at gmail.com>
> ---
>  libavcodec/proresdec_lgpl.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/libavcodec/proresdec_lgpl.c b/libavcodec/proresdec_lgpl.c
> index 9e5674e..467a423 100644
> --- a/libavcodec/proresdec_lgpl.c
> +++ b/libavcodec/proresdec_lgpl.c
> @@ -251,7 +251,7 @@ static int decode_picture_header(ProresContext *ctx, const uint8_t *buf,
>                        (1 << (4 + ctx->frame->interlaced_frame)) - 1) >>
>                       (4 + ctx->frame->interlaced_frame);
>  
> -    remainder    = ctx->num_x_mbs & ((1 << slice_width_factor) - 1);
> +    remainder    = av_mod_uintp2(ctx->num_x_mbs, slice_width_factor);
>      num_x_slices = (ctx->num_x_mbs >> slice_width_factor) + (remainder & 1) +
>                     ((remainder >> 1) & 1) + ((remainder >> 2) & 1);

LGTM

thx

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

It is what and why we do it that matters, not just one of them.
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