-#ifdef HAVE_FAST_UNALIGNED
-# ifdef WORDS_BIGENDIAN
-# define AV_RB16(x) AV_RN16(x)
-# define AV_WB16(p, d) AV_WN16(p, d)
-
-# define AV_RL16(x) bswap_16(AV_RN16(x))
-# define AV_WL16(p, d) AV_WN16(p, bswap_16(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)
-# endif
-#else /* HAVE_FAST_UNALIGNED */
-#define AV_RB16(x) ((((const uint8_t*)(x))[0] << 8) | ((const uint8_t*)(x))[1])
-#define AV_WB16(p, d) do { \
- ((uint8_t*)(p))[1] = (d); \
- ((uint8_t*)(p))[0] = (d)>>8; } while(0)
-
-#define AV_RL16(x) ((((const uint8_t*)(x))[1] << 8) | \
- ((const uint8_t*)(x))[0])
-#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) | \
- ((const uint8_t*)(x))[3])
-#define AV_WB32(p, d) do { \
- ((uint8_t*)(p))[3] = (d); \
- ((uint8_t*)(p))[2] = (d)>>8; \
- ((uint8_t*)(p))[1] = (d)>>16; \
- ((uint8_t*)(p))[0] = (d)>>24; } while(0)
-
-#define AV_RL32(x) ((((const uint8_t*)(x))[3] << 24) | \
- (((const uint8_t*)(x))[2] << 16) | \
- (((const uint8_t*)(x))[1] << 8) | \
- ((const uint8_t*)(x))[0])
-#define AV_WL32(p, d) do { \
- ((uint8_t*)(p))[0] = (d); \
- ((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) | \
- ((uint64_t)((const uint8_t*)(x))[3] << 32) | \
- ((uint64_t)((const uint8_t*)(x))[4] << 24) | \
- ((uint64_t)((const uint8_t*)(x))[5] << 16) | \
- ((uint64_t)((const uint8_t*)(x))[6] << 8) | \
- (uint64_t)((const uint8_t*)(x))[7])
-#define AV_WB64(p, d) do { \
- ((uint8_t*)(p))[7] = (d); \
- ((uint8_t*)(p))[6] = (d)>>8; \
- ((uint8_t*)(p))[5] = (d)>>16; \
- ((uint8_t*)(p))[4] = (d)>>24; \
- ((uint8_t*)(p))[3] = (d)>>32; \
- ((uint8_t*)(p))[2] = (d)>>40; \
- ((uint8_t*)(p))[1] = (d)>>48; \
- ((uint8_t*)(p))[0] = (d)>>56; } while(0)
-
-#define AV_RL64(x) (((uint64_t)((const uint8_t*)(x))[7] << 56) | \
- ((uint64_t)((const uint8_t*)(x))[6] << 48) | \
- ((uint64_t)((const uint8_t*)(x))[5] << 40) | \
- ((uint64_t)((const uint8_t*)(x))[4] << 32) | \
- ((uint64_t)((const uint8_t*)(x))[3] << 24) | \
- ((uint64_t)((const uint8_t*)(x))[2] << 16) | \
- ((uint64_t)((const uint8_t*)(x))[1] << 8) | \
- (uint64_t)((const uint8_t*)(x))[0])
-#define AV_WL64(p, d) do { \
- ((uint8_t*)(p))[0] = (d); \
- ((uint8_t*)(p))[1] = (d)>>8; \
- ((uint8_t*)(p))[2] = (d)>>16; \
- ((uint8_t*)(p))[3] = (d)>>24; \
- ((uint8_t*)(p))[4] = (d)>>32; \
- ((uint8_t*)(p))[5] = (d)>>40; \
- ((uint8_t*)(p))[6] = (d)>>48; \
- ((uint8_t*)(p))[7] = (d)>>56; } while(0)
-#endif
-
-#endif /* FFMPEG_INTREADWRITE_H */
+#ifndef AV_RB16
+# define AV_RB16(p) AV_RB(16, p)
+#endif
+#ifndef AV_WB16
+# define AV_WB16(p, v) AV_WB(16, p, v)
+#endif
+
+#ifndef AV_RL16
+# define AV_RL16(p) AV_RL(16, p)
+#endif
+#ifndef AV_WL16
+# define AV_WL16(p, v) AV_WL(16, p, v)
+#endif
+
+#ifndef AV_RB32
+# define AV_RB32(p) AV_RB(32, p)
+#endif
+#ifndef AV_WB32
+# define AV_WB32(p, v) AV_WB(32, p, v)
+#endif
+
+#ifndef AV_RL32
+# define AV_RL32(p) AV_RL(32, p)
+#endif
+#ifndef AV_WL32
+# define AV_WL32(p, v) AV_WL(32, p, v)
+#endif
+
+#ifndef AV_RB64
+# define AV_RB64(p) AV_RB(64, p)
+#endif
+#ifndef AV_WB64
+# define AV_WB64(p, v) AV_WB(64, p, v)
+#endif
+
+#ifndef AV_RL64
+# define AV_RL64(p) AV_RL(64, p)
+#endif
+#ifndef AV_WL64
+# define AV_WL64(p, v) AV_WL(64, p, v)
+#endif
+
+#ifndef AV_RB24
+# define AV_RB24(x) \
+ ((((const uint8_t*)(x))[0] << 16) | \
+ (((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[2])
+#endif
+#ifndef AV_WB24
+# 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)
+#endif
+
+#ifndef AV_RL24
+# define AV_RL24(x) \
+ ((((const uint8_t*)(x))[2] << 16) | \
+ (((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL24
+# 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
+
+/*
+ * The AV_[RW]NA macros access naturally aligned data
+ * in a type-safe way.
+ */
+
+#define AV_RNA(s, p) (((const av_alias##s*)(p))->u##s)
+#define AV_WNA(s, p, v) (((av_alias##s*)(p))->u##s = (v))
+
+#ifndef AV_RN16A
+# define AV_RN16A(p) AV_RNA(16, p)
+#endif
+
+#ifndef AV_RN32A
+# define AV_RN32A(p) AV_RNA(32, p)
+#endif
+
+#ifndef AV_RN64A
+# define AV_RN64A(p) AV_RNA(64, p)
+#endif
+
+#ifndef AV_WN16A
+# define AV_WN16A(p, v) AV_WNA(16, p, v)
+#endif
+
+#ifndef AV_WN32A
+# define AV_WN32A(p, v) AV_WNA(32, p, v)
+#endif
+
+#ifndef AV_WN64A
+# define AV_WN64A(p, v) AV_WNA(64, p, v)
+#endif
+
+/*
+ * The AV_COPYxxU macros are suitable for copying data to/from unaligned
+ * memory locations.
+ */
+
+#define AV_COPYU(n, d, s) AV_WN##n(d, AV_RN##n(s));
+
+#ifndef AV_COPY16U
+# define AV_COPY16U(d, s) AV_COPYU(16, d, s)
+#endif
+
+#ifndef AV_COPY32U
+# define AV_COPY32U(d, s) AV_COPYU(32, d, s)
+#endif
+
+#ifndef AV_COPY64U
+# define AV_COPY64U(d, s) AV_COPYU(64, d, s)
+#endif
+
+#ifndef AV_COPY128U
+# define AV_COPY128U(d, s) \
+ do { \
+ AV_COPY64U(d, s); \
+ AV_COPY64U((char *)(d) + 8, (const char *)(s) + 8); \
+ } while(0)
+#endif
+
+/* Parameters for AV_COPY*, AV_SWAP*, AV_ZERO* must be
+ * naturally aligned. They may be implemented using MMX,
+ * so emms_c() must be called before using any float code
+ * afterwards.
+ */
+
+#define AV_COPY(n, d, s) \
+ (((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n)
+
+#ifndef AV_COPY16
+# define AV_COPY16(d, s) AV_COPY(16, d, s)
+#endif
+
+#ifndef AV_COPY32
+# define AV_COPY32(d, s) AV_COPY(32, d, s)
+#endif
+
+#ifndef AV_COPY64
+# define AV_COPY64(d, s) AV_COPY(64, d, s)
+#endif
+
+#ifndef AV_COPY128
+# define AV_COPY128(d, s) \
+ do { \
+ AV_COPY64(d, s); \
+ AV_COPY64((char*)(d)+8, (char*)(s)+8); \
+ } while(0)
+#endif
+
+#define AV_SWAP(n, a, b) FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b))
+
+#ifndef AV_SWAP64
+# define AV_SWAP64(a, b) AV_SWAP(64, a, b)
+#endif
+
+#define AV_ZERO(n, d) (((av_alias##n*)(d))->u##n = 0)
+
+#ifndef AV_ZERO16
+# define AV_ZERO16(d) AV_ZERO(16, d)
+#endif
+
+#ifndef AV_ZERO32
+# define AV_ZERO32(d) AV_ZERO(32, d)
+#endif
+
+#ifndef AV_ZERO64
+# define AV_ZERO64(d) AV_ZERO(64, d)
+#endif
+
+#ifndef AV_ZERO128
+# define AV_ZERO128(d) \
+ do { \
+ AV_ZERO64(d); \
+ AV_ZERO64((char*)(d)+8); \
+ } while(0)
+#endif
+
+#endif /* AVUTIL_INTREADWRITE_H */