[FFmpeg-cvslog] Dont leak sws contexts.

[Stefano Sabatini]

On date Sunday 2011-04-03 18:20:08 +0200, Michael Niedermayer wrote:
> ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Wed Mar  9 03:30:24 2011 +0100| [bbd1c43fa3231cae594e9103a0e041977eafa244] | committer: Michael Niedermayer
> 
> Dont leak sws contexts.
> Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> 
> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=bbd1c43fa3231cae594e9103a0e041977eafa244
> ---
> 
>  libavfilter/vf_scale.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c
> index b1f1ba5..672c3bf 100644
> --- a/libavfilter/vf_scale.c
> +++ b/libavfilter/vf_scale.c
> @@ -144,6 +144,8 @@ static int config_props(AVFilterLink *outlink)
>  
>      scale->input_is_pal = av_pix_fmt_descriptors[inlink->format].flags & PIX_FMT_PAL;
>  

> +    if(scale->sws)
> +        sws_freeContext(scale->sws);

What's the point of this change?

AFAIK config should be called just once, if that's not the case also
the other sws contexts should be freed as well.