replace long double in the audiophile kiddy mode with doubles, its faster (and more portable) and the audiophile placebo 120db stopband attenuation isnt affected

Originally committed as revision 8482 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/resample2.c

@@ -51,9 +51,9 @@
 #else
 #define FILTER_SHIFT 0
 
-#define FELEM long double
-#define FELEM2 long double
-#define FELEML long double
+#define FELEM double
+#define FELEM2 double
+#define FELEML double
 #define WINDOW_TYPE 24
 #endif