@@ -30,8 +30,7 @@

 #define RDFT_BITS_MAX 16

 enum WindowFunc {

-    WFUNC_MIN,

-    WFUNC_RECTANGULAR = WFUNC_MIN,

+    WFUNC_RECTANGULAR,

     WFUNC_HANN,

     WFUNC_HAMMING,

     WFUNC_BLACKMAN,

@@ -40,7 +39,7 @@ enum WindowFunc {

     WFUNC_NUTTALL,

     WFUNC_BNUTTALL,

     WFUNC_BHARRIS,

-    WFUNC_MAX = WFUNC_BHARRIS

+    NB_WFUNC

 };

 #define NB_GAIN_ENTRY_MAX 4096

@@ -98,7 +97,7 @@ static const AVOption firequalizer_options[] = {

     { "gain_entry", "set gain entry", OFFSET(gain_entry), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS },

     { "delay", "set delay", OFFSET(delay), AV_OPT_TYPE_DOUBLE, { .dbl = 0.01 }, 0.0, 1e10, FLAGS },

     { "accuracy", "set accuracy", OFFSET(accuracy), AV_OPT_TYPE_DOUBLE, { .dbl = 5.0 }, 0.0, 1e10, FLAGS },

-    { "wfunc", "set window function", OFFSET(wfunc), AV_OPT_TYPE_INT, { .i64 = WFUNC_HANN }, WFUNC_MIN, WFUNC_MAX, FLAGS, "wfunc" },

+    { "wfunc", "set window function", OFFSET(wfunc), AV_OPT_TYPE_INT, { .i64 = WFUNC_HANN }, 0, NB_WFUNC-1, FLAGS, "wfunc" },

         { "rectangular", "rectangular window", 0, AV_OPT_TYPE_CONST, { .i64 = WFUNC_RECTANGULAR }, 0, 0, FLAGS, "wfunc" },

         { "hann", "hann window", 0, AV_OPT_TYPE_CONST, { .i64 = WFUNC_HANN }, 0, 0, FLAGS, "wfunc" },

         { "hamming", "hamming window", 0, AV_OPT_TYPE_CONST, { .i64 = WFUNC_HAMMING }, 0, 0, FLAGS, "wfunc" },