[FFmpeg-devel] [PATCH 2/4] ac3_fixed: fix computation of spx_noise_blend
Christophe Gisquet
christophe.gisquet at gmail.com
Sat Mar 14 12:48:58 CET 2015
It was set to 1 instead of sqrt(3)
---
libavcodec/ac3dec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/ac3dec.c b/libavcodec/ac3dec.c
index ce45186..ae4129f 100644
--- a/libavcodec/ac3dec.c
+++ b/libavcodec/ac3dec.c
@@ -939,7 +939,7 @@ static int decode_audio_block(AC3DecodeContext *s, int blk)
nblend = 0;
sblend = 0x800000;
} else if (nratio > 0x7fffff) {
- nblend = 0x800000;
+ nblend = 14529495; // sqrt(3) in FP.23
sblend = 0;
} else {
nblend = fixed_sqrt(nratio, 23);
--
1.9.2.msysgit.0
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