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authorMichael Niedermayer <michael@niedermayer.cc>2017-06-04 20:45:09 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2017-06-05 23:16:54 +0200
commit591a3d263247380ca8fb01238d6676d8a3f05632 (patch)
tree9d4be32163b89355f645c0462aa62b2277d38a19
parent268d84a7423100e5ddee6826bf2339dfabc9c111 (diff)
downloadffmpeg-591a3d263247380ca8fb01238d6676d8a3f05632.tar.gz
avutil/softfloat: Fix sign error in and improve documentation of av_int2sf()
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 6019d721d4c10bf73018d68511d9d0a914c0a389) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r--libavutil/softfloat.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/libavutil/softfloat.h b/libavutil/softfloat.h
index 8be85423c7..1e77c12766 100644
--- a/libavutil/softfloat.h
+++ b/libavutil/softfloat.h
@@ -156,8 +156,10 @@ static inline av_const SoftFloat av_sub_sf(SoftFloat a, SoftFloat b){
//FIXME log, exp, pow
/**
- * Converts a mantisse and exponent to a SoftFloat
- * @returns a SoftFloat with value v * 2^frac_bits
+ * Converts a mantisse and exponent to a SoftFloat.
+ * This converts a fixed point value v with frac_bits fractional bits to a
+ * SoftFloat.
+ * @returns a SoftFloat with value v * 2^-frac_bits
*/
static inline av_const SoftFloat av_int2sf(int v, int frac_bits){
int exp_offset = 0;