[FFmpeg-devel] [WIP] lavfi: port mp/eq to a regular filter

[Timothy Gu]

On Sep 14, 2014 3:46 PM, "James Darnley" <james.darnley at gmail.com> wrote:
>
> ---
>
> Still a couple of things on the todo list (see the top of the new file)
but I
> thought I would send the basics along for people to nit pick.
>
>  configure                |   1 +
>  libavfilter/Makefile     |   1 +
>  libavfilter/allfilters.c |   1 +
>  libavfilter/vf_eq.c      | 157
+++++++++++++++++++++++++++++++++++++++++++++++
>  4 files changed, 160 insertions(+)
>  create mode 100644 libavfilter/vf_eq.c

[...]

> +#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
> +static const AVOption eq_options[] = {
> +    { "brightness", "", OFFSET(brightness), AV_OPT_TYPE_INT, {.i64 = 0},
-100, 100, FLAGS },
> +    { "contrast",   "", OFFSET(contrast),   AV_OPT_TYPE_INT, {.i64 = 0},
-100, 100, FLAGS },
> +    { NULL }
> +};

Can vf_hue be improved to support changing contrast instead of writing a
new filter just for that?

Timothy