diff --git a/libswscale/swscale.h b/libswscale/swscale.h
index 98e9b2ee0e..95ff4f1770 100644
--- a/libswscale/swscale.h
+++ b/libswscale/swscale.h
@@ -75,6 +75,7 @@ unsigned swscale_version(void);
 #define SWS_FULL_CHR_H_INP    0x4000
 #define SWS_DIRECT_BGR        0x8000
 #define SWS_ACCURATE_RND      0x40000
+#define SWS_BITEXACT          0x80000
 
 #define SWS_CPU_CAPS_MMX      0x80000000
 #define SWS_CPU_CAPS_MMX2     0x20000000
diff --git a/libswscale/swscale_avoption.c b/libswscale/swscale_avoption.c
index 1878b4ea8f..996843df1d 100644
--- a/libswscale/swscale_avoption.c
+++ b/libswscale/swscale_avoption.c
@@ -53,6 +53,7 @@ static const AVOption options[] = {
     { "bfin", "Blackfin SIMD acceleration", 0, FF_OPT_TYPE_CONST, SWS_CPU_CAPS_BFIN, INT_MIN, INT_MAX, VE, "sws_flags" },
     { "full_chroma_int", "full chroma interpolation", 0 , FF_OPT_TYPE_CONST, SWS_FULL_CHR_H_INT, INT_MIN, INT_MAX, VE, "sws_flags" },
     { "full_chroma_inp", "full chroma input", 0 , FF_OPT_TYPE_CONST, SWS_FULL_CHR_H_INP, INT_MIN, INT_MAX, VE, "sws_flags" },
+    { "bitexact", "", 0 , FF_OPT_TYPE_CONST, SWS_BITEXACT, INT_MIN, INT_MAX, VE, "sws_flags" },
     { NULL }
 };