Re: [ptxdist] [PATCH v2 1/2] ffmpeg: enable filters and swscale

[Michael Olbrich <m.olbrich@pengutronix.de>]

On Fri, Nov 21, 2025 at 09:50:55AM +0100, Sven Püschel wrote:
> Enable the filters and swscale, as they are required by the GStreamer
> avvideocompare element. This uses the ssim or psnr filter to compare
> two video inputs. Internally this also expects swscale to be available
> to potentially scale the inputs to the same size.
> 
> The change increases the libavfilter.so file size from 148.0K to 4.3M.
> The remaining shared libraries from libav keep their size.
> 
> Signed-off-by: Sven Püschel <s.pueschel@pengutronix.de>
> ---
>  rules/ffmpeg.make | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/rules/ffmpeg.make b/rules/ffmpeg.make
> index 3f177021b..f1b304fc4 100644
> --- a/rules/ffmpeg.make
> +++ b/rules/ffmpeg.make
> @@ -75,7 +75,7 @@ FFMPEG_CONF_OPT		:= \
>  	--enable-avcodec \
>  	--enable-avformat \
>  	--enable-swresample \
> -	--disable-swscale \
> +	--enable-swscale \

The resulting library must be installed as well.

Michael

>  	--enable-avfilter \
>  	\
>  	--enable-pthreads \
> @@ -98,7 +98,7 @@ FFMPEG_CONF_OPT		:= \
>  	--disable-indevs \
>  	--disable-outdevs \
>  	--disable-devices \
> -	--disable-filters \
> +	--enable-filters \
>  	\
>  	--disable-alsa \
>  	--disable-appkit \
> -- 
> 2.47.3
> 
> 
> 

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