[PATCH 3/3] Add erode libopencv filter.

[Stefano Sabatini]

---
 libavfilter/vf_libopencv.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/libavfilter/vf_libopencv.c b/libavfilter/vf_libopencv.c
index 4f787ad..f3c683c 100644
--- a/libavfilter/vf_libopencv.c
+++ b/libavfilter/vf_libopencv.c
@@ -257,6 +257,13 @@ static void dilate_end_frame_filter(AVFilterContext *ctx, IplImage *inimg, IplIm
     cvDilate(inimg, outimg, dilate->kernel, dilate->iterations_nb);
 }
 
+static void erode_end_frame_filter(AVFilterContext *ctx, IplImage *inimg, IplImage *outimg)
+{
+    OCVContext *ocv = ctx->priv;
+    DilateContext *dilate = ocv->priv;
+    cvErode(inimg, outimg, dilate->kernel, dilate->iterations_nb);
+}
+
 typedef struct {
     const char *name;
     size_t priv_size;
@@ -268,6 +275,7 @@ typedef struct {
 static OCVFilterEntry ocv_filter_entries[] = {
     { "smooth", sizeof(SmoothContext), smooth_init, NULL, smooth_end_frame_filter },
     { "dilate", sizeof(DilateContext), dilate_init, NULL, dilate_end_frame_filter },
+    { "erode",  sizeof(DilateContext), dilate_init, NULL, erode_end_frame_filter  },
 };
 
 static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
-- 
1.7.1


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