On Thu, May 03, 2018 at 03:44:42PM +0200, Paul B Mahol wrote:
> Signed-off-by: Paul B Mahol <one...@gmail.com>
> ---
> doc/filters.texi | 3 +++
> libavfilter/vf_edgedetect.c | 5 +++++
> 2 files changed, 8 insertions(+)
>
> diff --git a/doc/filters.texi b/doc/filters.texi
> index 218f30ef5f..29b5a5b15f 100644
> --- a/doc/filters.texi
> +++ b/doc/filters.texi
> @@ -8268,6 +8268,9 @@ Draw white/gray wires on black background.
>
> @item colormix
> Mix the colors to create a paint/cartoon effect.
> +
> +@item canny
> +Apply Canny edge detector on all selected planes.
> @end table
>
> Default value is @var{wires}.
> diff --git a/libavfilter/vf_edgedetect.c b/libavfilter/vf_edgedetect.c
> index 173f9fe161..534a302d90 100644
> --- a/libavfilter/vf_edgedetect.c
> +++ b/libavfilter/vf_edgedetect.c
> @@ -35,6 +35,7 @@
> enum FilterMode {
> MODE_WIRES,
> MODE_COLORMIX,
> + MODE_CANNY,
> NB_MODE
> };
>
> @@ -61,6 +62,7 @@ static const AVOption edgedetect_options[] = {
> { "mode", "set mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=MODE_WIRES},
> 0, NB_MODE-1, FLAGS, "mode" },
> { "wires", "white/gray wires on black", 0, AV_OPT_TYPE_CONST,
> {.i64=MODE_WIRES}, INT_MIN, INT_MAX, FLAGS, "mode" },
> { "colormix", "mix colors", 0, AV_OPT_TYPE_CONST,
> {.i64=MODE_COLORMIX}, INT_MIN, INT_MAX, FLAGS, "mode" },
> + { "canny", "detect edges on planes", 0, AV_OPT_TYPE_CONST,
> {.i64=MODE_CANNY}, INT_MIN, INT_MAX, FLAGS, "mode" },
> { NULL }
> };
>
> @@ -79,6 +81,7 @@ static int query_formats(AVFilterContext *ctx)
> {
> const EdgeDetectContext *edgedetect = ctx->priv;
> static const enum AVPixelFormat wires_pix_fmts[] = {AV_PIX_FMT_GRAY8,
> AV_PIX_FMT_NONE};
> + static const enum AVPixelFormat canny_pix_fmts[] = {AV_PIX_FMT_YUV444P,
> AV_PIX_FMT_GBRP, AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE};
> static const enum AVPixelFormat colormix_pix_fmts[] = {AV_PIX_FMT_GBRP,
> AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE};
> AVFilterFormats *fmts_list;
> const enum AVPixelFormat *pix_fmts = NULL;
> @@ -87,6 +90,8 @@ static int query_formats(AVFilterContext *ctx)
> pix_fmts = wires_pix_fmts;
> } else if (edgedetect->mode == MODE_COLORMIX) {
> pix_fmts = colormix_pix_fmts;
> + } else if (edgedetect->mode == MODE_CANNY) {
> + pix_fmts = canny_pix_fmts;
> } else {
> av_assert0(0);
> }Sure, why not -- Clément B.
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