Remove wrong casts from vector declarations, this would cause errors when

compiling with -std=gnu99. Blessed by Luca Barbato.

Originally committed as revision 14129 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/ppc/fdct_altivec.c

@@ -58,9 +58,9 @@
 
 
 static vector float fdctconsts[3] = {
-    (vector float)AVV( W0, W1, W2, W3 ),
-    (vector float)AVV( W4, W5, W6, W7 ),
-    (vector float)AVV( W8, W9, WA, WB )
+    AVV( W0, W1, W2, W3 ),
+    AVV( W4, W5, W6, W7 ),
+    AVV( W8, W9, WA, WB )
 };
 
 #define LD_W0 vec_splat(cnsts0, 0)

libavcodec/ppc/idct_altivec.c

@@ -158,11 +158,11 @@
 
 
 static const_vector_s16_t constants[5] = {
-    (vector_s16_t) AVV(23170, 13573, 6518, 21895, -23170, -21895, 32, 31),
-    (vector_s16_t) AVV(16384, 22725, 21407, 19266, 16384, 19266, 21407, 22725),
-    (vector_s16_t) AVV(22725, 31521, 29692, 26722, 22725, 26722, 29692, 31521),
-    (vector_s16_t) AVV(21407, 29692, 27969, 25172, 21407, 25172, 27969, 29692),
-    (vector_s16_t) AVV(19266, 26722, 25172, 22654, 19266, 22654, 25172, 26722)
+    AVV(23170, 13573, 6518, 21895, -23170, -21895, 32, 31),
+    AVV(16384, 22725, 21407, 19266, 16384, 19266, 21407, 22725),
+    AVV(22725, 31521, 29692, 26722, 22725, 26722, 29692, 31521),
+    AVV(21407, 29692, 27969, 25172, 21407, 25172, 27969, 29692),
+    AVV(19266, 26722, 25172, 22654, 19266, 22654, 25172, 26722)
 };
 
 void idct_put_altivec(uint8_t* dest, int stride, vector_s16_t* block)