@@ -9352,6 +9352,12 @@ The first input value for the pixel component.

 @item y

 The second input value for the pixel component.

+

+@item bdx

+The first input video bit depth.

+

+@item bdy

+The second input video bit depth.

 @end table

 All expressions default to "x".

@@ -35,6 +35,8 @@ static const char *const var_names[] = {

     "h",        ///< height of the input video

     "x",        ///< input value for the pixel from input #1

     "y",        ///< input value for the pixel from input #2

+    "bdx",      ///< input #1 video bitdepth

+    "bdy",      ///< input #2 video bitdepth

     NULL

 };

@@ -43,6 +45,8 @@ enum var_name {

     VAR_H,

     VAR_X,

     VAR_Y,

+    VAR_BITDEPTHX,

+    VAR_BITDEPTHY,

     VAR_VARS_NB

 };

@@ -127,6 +131,7 @@ static int config_inputx(AVFilterLink *inlink)

     s->var_values[VAR_W] = inlink->w;

     s->var_values[VAR_H] = inlink->h;

     s->depthx = desc->comp[0].depth;

+    s->var_values[VAR_BITDEPTHX] = s->depthx;

     return 0;

 }

@@ -138,6 +143,7 @@ static int config_inputy(AVFilterLink *inlink)

     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);

     s->depthy = desc->comp[0].depth;

+    s->var_values[VAR_BITDEPTHY] = s->depthy;

     return 0;

 }