[FFmpeg-devel] [PATCH] avcodec/gif: dont honor transparency if palette changed

[Clément Bœsch]

On Tue, Sep 06, 2016 at 01:30:17PM +0200, Paul B Mahol wrote:
> It generally does not work.
> 
> Signed-off-by: Paul B Mahol <onemda at gmail.com>
> ---
>  libavcodec/gif.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/libavcodec/gif.c b/libavcodec/gif.c
> index 6af1f4a..d9c99d5 100644
> --- a/libavcodec/gif.c
> +++ b/libavcodec/gif.c
> @@ -83,7 +83,7 @@ static int gif_image_write_image(AVCodecContext *avctx,
>      GIFContext *s = avctx->priv_data;
>      int len = 0, height = avctx->height, width = avctx->width, x, y;
>      int x_start = 0, y_start = 0, trans = s->transparent_index;
> -    int honor_transparency = (s->flags & GF_TRANSDIFF) && s->last_frame;
> +    int honor_transparency = (s->flags & GF_TRANSDIFF) && s->last_frame && !palette;
>      const uint8_t *ptr;
>  

LGTM

-- 
Clément B.