move unaligned access macros to dsputil.h - added unaligned 32 bit store

Originally committed as revision 687 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/dsputil.c

@@ -252,21 +252,6 @@ void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size)
     }
 }
 
-#ifdef __GNUC__
-
-struct unaligned_64 { uint64_t l; } __attribute__((packed));
-struct unaligned_32 { uint32_t l; } __attribute__((packed));
-
-#define LD32(a) (((const struct unaligned_32 *) (a))->l)
-#define LD64(a) (((const struct unaligned_64 *) (a))->l)
-
-#else /* __GNUC__ */
-
-#define LD32(a) (*((uint32_t*)(a)))
-#define LD64(a) (*((uint64_t*)(a)))
-
-#endif /* !__GNUC__ */
-
 #if 0
 
 #define PIXOP2(OPNAME, OP) \

libavcodec/dsputil.h

@@ -168,6 +168,25 @@ void dsputil_init_alpha(void);
 
 #endif
 
+#ifdef __GNUC__
+
+struct unaligned_64 { uint64_t l; } __attribute__((packed));
+struct unaligned_32 { uint32_t l; } __attribute__((packed));
+
+#define LD32(a) (((const struct unaligned_32 *) (a))->l)
+#define LD64(a) (((const struct unaligned_64 *) (a))->l)
+
+#define ST32(a, b) (((struct unaligned_32 *) (a))->l) = (b)
+
+#else /* __GNUC__ */
+
+#define LD32(a) (*((uint32_t*)(a)))
+#define LD64(a) (*((uint64_t*)(a)))
+
+#define ST32(a, b) *((uint32_t*)(a)) = (b)
+
+#endif /* !__GNUC__ */
+
 /* PSNR */
 void get_psnr(UINT8 *orig_image[3], UINT8 *coded_image[3],
               int orig_linesize[3], int coded_linesize,