1 files changed, 16 insertions, 0 deletions
diff --git a/libavutil/float2half.h b/libavutil/float2half.h
index 20fdc2a36b..e619046911 100644
--- a/libavutil/float2half.h
+++ b/libavutil/float2half.h
@@ -20,21 +20,37 @@
 #define AVUTIL_FLOAT2HALF_H
 
 #include <stdint.h>
+#include "intfloat.h"
+
+#include "config.h"
 
 typedef struct Float2HalfTables {
+#if HAVE_FAST_FLOAT16
+    uint8_t dummy;
+#else
     uint16_t basetable[512];
     uint8_t shifttable[512];
+#endif
 } Float2HalfTables;
 
 void ff_init_float2half_tables(Float2HalfTables *t);
 
 static inline uint16_t float2half(uint32_t f, const Float2HalfTables *t)
 {
+#if HAVE_FAST_FLOAT16
+    union {
+        _Float16 f;
+        uint16_t i;
+    } u;
+    u.f = av_int2float(f);
+    return u.i;
+#else
     uint16_t h;
 
     h = t->basetable[(f >> 23) & 0x1ff] + ((f & 0x007fffff) >> t->shifttable[(f >> 23) & 0x1ff]);
 
     return h;
+#endif
 }
 
 #endif /* AVUTIL_FLOAT2HALF_H */