diff --git a/libavutil/intreadwrite.h b/libavutil/intreadwrite.h
index cbf5163b3e..3269f2803c 100644
--- a/libavutil/intreadwrite.h
+++ b/libavutil/intreadwrite.h
@@ -63,12 +63,36 @@ struct unaligned_16 { uint16_t l; } __attribute__((packed));
 
 #  define AV_RL16(x)    bswap_16(AV_RN16(x))
 #  define AV_WL16(p, d) AV_WN16(p, bswap_16(d))
+
+#  define AV_RB32(x)    AV_RN32(x)
+#  define AV_WB32(p, d) AV_WN32(p, d)
+
+#  define AV_RL32(x)    bswap_32(AV_RN32(x))
+#  define AV_WL32(p, d) AV_WN32(p, bswap_32(d))
+
+#  define AV_RB64(x)    AV_RN64(x)
+#  define AV_WB64(p, d) AV_WN64(p, d)
+
+#  define AV_RL64(x)    bswap_64(AV_RN64(x))
+#  define AV_WL64(p, d) AV_WN64(p, bswap_64(d))
 # else /* WORDS_BIGENDIAN */
 #  define AV_RB16(x)    bswap_16(AV_RN16(x))
 #  define AV_WB16(p, d) AV_WN16(p, bswap_16(d))
 
 #  define AV_RL16(x)    AV_RN16(x)
 #  define AV_WL16(p, d) AV_WN16(p, d)
+
+#  define AV_RB32(x)    bswap_32(AV_RN32(x))
+#  define AV_WB32(p, d) AV_WN32(p, bswap_32(d))
+
+#  define AV_RL32(x)    AV_RN32(x)
+#  define AV_WL32(p, d) AV_WN32(p, d)
+
+#  define AV_RB64(x)    bswap_64(AV_RN64(x))
+#  define AV_WB64(p, d) AV_WN64(p, bswap_64(d))
+
+#  define AV_RL64(x)    AV_RN64(x)
+#  define AV_WL64(p, d) AV_WN64(p, d)
 # endif
 #else /* HAVE_FAST_UNALIGNED */
 #define AV_RB16(x)  ((((const uint8_t*)(x))[0] << 8) | ((const uint8_t*)(x))[1])
@@ -81,39 +105,7 @@ struct unaligned_16 { uint16_t l; } __attribute__((packed));
 #define AV_WL16(p, d) do { \
                     ((uint8_t*)(p))[0] = (d); \
                     ((uint8_t*)(p))[1] = (d)>>8; } while(0)
-#endif
 
-#define AV_RB24(x)  ((((const uint8_t*)(x))[0] << 16) | \
-                     (((const uint8_t*)(x))[1] <<  8) | \
-                      ((const uint8_t*)(x))[2])
-#define AV_WB24(p, d) do { \
-                    ((uint8_t*)(p))[2] = (d); \
-                    ((uint8_t*)(p))[1] = (d)>>8; \
-                    ((uint8_t*)(p))[0] = (d)>>16; } while(0)
-
-#define AV_RL24(x)  ((((const uint8_t*)(x))[2] << 16) | \
-                     (((const uint8_t*)(x))[1] <<  8) | \
-                      ((const uint8_t*)(x))[0])
-#define AV_WL24(p, d) do { \
-                    ((uint8_t*)(p))[0] = (d); \
-                    ((uint8_t*)(p))[1] = (d)>>8; \
-                    ((uint8_t*)(p))[2] = (d)>>16; } while(0)
-
-#ifdef HAVE_FAST_UNALIGNED
-# ifdef WORDS_BIGENDIAN
-#  define AV_RB32(x)    AV_RN32(x)
-#  define AV_WB32(p, d) AV_WN32(p, d)
-
-#  define AV_RL32(x)    bswap_32(AV_RN32(x))
-#  define AV_WL32(p, d) AV_WN32(p, bswap_32(d))
-# else /* WORDS_BIGENDIAN */
-#  define AV_RB32(x)    bswap_32(AV_RN32(x))
-#  define AV_WB32(p, d) AV_WN32(p, bswap_32(d))
-
-#  define AV_RL32(x)    AV_RN32(x)
-#  define AV_WL32(p, d) AV_WN32(p, d)
-# endif
-#else /* HAVE_FAST_UNALIGNED */
 #define AV_RB32(x)  ((((const uint8_t*)(x))[0] << 24) | \
                      (((const uint8_t*)(x))[1] << 16) | \
                      (((const uint8_t*)(x))[2] <<  8) | \
@@ -133,23 +125,7 @@ struct unaligned_16 { uint16_t l; } __attribute__((packed));
                     ((uint8_t*)(p))[1] = (d)>>8; \
                     ((uint8_t*)(p))[2] = (d)>>16; \
                     ((uint8_t*)(p))[3] = (d)>>24; } while(0)
-#endif
 
-#ifdef HAVE_FAST_UNALIGNED
-# ifdef WORDS_BIGENDIAN
-#  define AV_RB64(x)    AV_RN64(x)
-#  define AV_WB64(p, d) AV_WN64(p, d)
-
-#  define AV_RL64(x)    bswap_64(AV_RN64(x))
-#  define AV_WL64(p, d) AV_WN64(p, bswap_64(d))
-# else /* WORDS_BIGENDIAN */
-#  define AV_RB64(x)    bswap_64(AV_RN64(x))
-#  define AV_WB64(p, d) AV_WN64(p, bswap_64(d))
-
-#  define AV_RL64(x)    AV_RN64(x)
-#  define AV_WL64(p, d) AV_WN64(p, d)
-# endif
-#else /* HAVE_FAST_UNALIGNED */
 #define AV_RB64(x)  (((uint64_t)((const uint8_t*)(x))[0] << 56) | \
                      ((uint64_t)((const uint8_t*)(x))[1] << 48) | \
                      ((uint64_t)((const uint8_t*)(x))[2] << 40) | \
@@ -185,6 +161,22 @@ struct unaligned_16 { uint16_t l; } __attribute__((packed));
                     ((uint8_t*)(p))[5] = (d)>>40; \
                     ((uint8_t*)(p))[6] = (d)>>48; \
                     ((uint8_t*)(p))[7] = (d)>>56; } while(0)
-#endif
+#endif  /* HAVE_FAST_UNALIGNED */
+
+#define AV_RB24(x)  ((((const uint8_t*)(x))[0] << 16) | \
+                     (((const uint8_t*)(x))[1] <<  8) | \
+                      ((const uint8_t*)(x))[2])
+#define AV_WB24(p, d) do { \
+                    ((uint8_t*)(p))[2] = (d); \
+                    ((uint8_t*)(p))[1] = (d)>>8; \
+                    ((uint8_t*)(p))[0] = (d)>>16; } while(0)
+
+#define AV_RL24(x)  ((((const uint8_t*)(x))[2] << 16) | \
+                     (((const uint8_t*)(x))[1] <<  8) | \
+                      ((const uint8_t*)(x))[0])
+#define AV_WL24(p, d) do { \
+                    ((uint8_t*)(p))[0] = (d); \
+                    ((uint8_t*)(p))[1] = (d)>>8; \
+                    ((uint8_t*)(p))[2] = (d)>>16; } while(0)
 
 #endif /* FFMPEG_INTREADWRITE_H */