vf_unsharp: set default chroma size value to 5x5

The previous default value 0x0 was not good, since it is not even
valid.

diff --git a/doc/filters.texi b/doc/filters.texi
index 6eb1970..73e2ac8 100644 (file)
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -1850,7 +1850,7 @@ It accepts the following parameters:
 
 Negative values for the amount will blur the input video, while positive
 values will sharpen. All parameters are optional and default to the
 
 Negative values for the amount will blur the input video, while positive
 values will sharpen. All parameters are optional and default to the

-equivalent of the string '5:5:1.0:0:0:0.0'.
+equivalent of the string '5:5:1.0:5:5:0.0'.

 
 @table @option
 
 
 @table @option
 


@@ -1868,11 +1868,11 @@ and 5.0, default value is 1.0.
 
 @item chroma_msize_x
 Set the chroma matrix horizontal size. It can be an integer between 3
 
 @item chroma_msize_x
 Set the chroma matrix horizontal size. It can be an integer between 3

-and 13, default value is 0.
+and 13, default value is 5.

 
 @item chroma_msize_y
 Set the chroma matrix vertical size. It can be an integer between 3
 
 @item chroma_msize_y
 Set the chroma matrix vertical size. It can be an integer between 3

-and 13, default value is 0.
+and 13, default value is 5.

 
 @item chroma_amount
 Set the chroma effect strength. It can be a float number between -2.0
 
 @item chroma_amount
 Set the chroma effect strength. It can be a float number between -2.0

diff --git a/libavfilter/vf_unsharp.c b/libavfilter/vf_unsharp.c
index ce72828..bd78ade 100644 (file)
--- a/libavfilter/vf_unsharp.c
+++ b/libavfilter/vf_unsharp.c
@@ -132,8 +132,8 @@ static void set_filter_param(FilterParam *fp, int msize_x, int msize_y, double a
 static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
 {
     UnsharpContext *unsharp = ctx->priv;
 static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
 {
     UnsharpContext *unsharp = ctx->priv;

-    int lmsize_x = 5, cmsize_x = 0;
-    int lmsize_y = 5, cmsize_y = 0;
+    int lmsize_x = 5, cmsize_x = 5;
+    int lmsize_y = 5, cmsize_y = 5;

     double lamount = 1.0f, camount = 0.0f;
 
     if (args)
     double lamount = 1.0f, camount = 0.0f;
 
     if (args)