On Wed, Feb 18, 2015 at 03:46:23PM +0100, Clément Bœsch wrote:
> From: Clément Bœsch <clem...@stupeflix.com>
>
> ---
> libavfilter/vf_paletteuse.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/libavfilter/vf_paletteuse.c b/libavfilter/vf_paletteuse.c
> index a8defc7..87a90d0 100644
> --- a/libavfilter/vf_paletteuse.c
> +++ b/libavfilter/vf_paletteuse.c
> @@ -133,9 +133,9 @@ static int query_formats(AVFilterContext *ctx)
>
> static av_always_inline int dither_color(uint32_t px, int er, int eg, int
> eb, int scale, int shift)
> {
> - return av_clip_uint8((px >> 16 & 0xff) + ((er * scale) >> shift)) << 16
> - | av_clip_uint8((px >> 8 & 0xff) + ((eg * scale) >> shift)) << 8
> - | av_clip_uint8((px & 0xff) + ((eb * scale) >> shift));
> + return av_clip_uint8((px >> 16 & 0xff) + ((er * scale) / (1<<shift))) <<
> 16
> + | av_clip_uint8((px >> 8 & 0xff) + ((eg * scale) / (1<<shift))) <<
> 8
> + | av_clip_uint8((px & 0xff) + ((eb * scale) / (1<<shift)));
> }
>
> static av_always_inline int diff(const uint8_t *c1, const uint8_t *c2)Applied. If anyone wants to make this faster, patch very welcome -- Clément B.
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