Re: [FFmpeg-devel] [PATCH 1/5] avutil/pixelutils: add av_pixelutils_bdiff()

[Michael Niedermayer]

On Thu, Aug 14, 2014 at 11:05:11PM +0200, Clément Bœsch wrote:
> ---
>  doc/APIchanges         |  3 +++
>  libavutil/pixelutils.c | 21 +++++++++++++++++++++
>  libavutil/pixelutils.h | 23 +++++++++++++++++++++++
>  libavutil/version.h    |  2 +-
>  4 files changed, 48 insertions(+), 1 deletion(-)
> 
> diff --git a/doc/APIchanges b/doc/APIchanges
> index 067f60f..72cfe96 100644
> --- a/doc/APIchanges
> +++ b/doc/APIchanges
> @@ -15,6 +15,9 @@ libavutil:     2014-08-09
>  
>  API changes, most recent first:
>  
> +2014-08-xx - xxxxxxx - lavu 54.04.100 - pixelutils.h
> +  Add av_pixelutils_bdiff().
> +
>  2014-08-xx - xxxxxxx - lavu 54.03.0 - mem.h
>    Add av_strndup().
>  
> diff --git a/libavutil/pixelutils.c b/libavutil/pixelutils.c
> index 10ff7e8..473d394 100644
> --- a/libavutil/pixelutils.c
> +++ b/libavutil/pixelutils.c
> @@ -85,6 +85,27 @@ av_pixelutils_sad_fn av_pixelutils_get_sad_fn(int w_bits, 
> int h_bits, int aligne
>  #endif
>  }
>  
> +int64_t av_pixelutils_bdiff(const uint8_t *s1, ptrdiff_t stride1,
> +                            const uint8_t *s2, ptrdiff_t stride2,
> +                            av_pixelutils_sad_fn sadfn,
> +                            int w, int h, int bsize)
> +{
> +#if !CONFIG_PIXELUTILS
> +    return -1;
> +#else
does every application need error checking due to this ?

[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Into a blind darkness they enter who follow after the Ignorance,
they as if into a greater darkness enter who devote themselves
to the Knowledge alone. -- Isha Upanishad

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