[FFmpeg-cvslog] swr: use a local variable for ns_coeffs

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Jan 12 17:34:21 2013 +0100| [ef7fdc8cff2c5cabd51eb4a47e6fc92f885b7352] | committer: Michael Niedermayer

swr: use a local variable for ns_coeffs

maybe a very tiny bit faster

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ef7fdc8cff2c5cabd51eb4a47e6fc92f885b7352
---

 libswresample/dither_template.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libswresample/dither_template.c b/libswresample/dither_template.c
index 88d3260..8cf0c57 100644
--- a/libswresample/dither_template.c
+++ b/libswresample/dither_template.c
@@ -34,11 +34,12 @@ void RENAME(swri_noise_shaping)(SwrContext *s, AudioData *dsts, const AudioData
         const DELEM *src = (const DELEM*)srcs->ch[ch];
         DELEM *dst = (DELEM*)dsts->ch[ch];
         float *ns_errors = s->dither.ns_errors[ch];
+        const float *ns_coeffs = s->dither.ns_coeffs;
         pos  = s->dither.ns_pos;
         for (i=0; i<count; i++) {
             double d1, d = src[i]*S_1;
             for(j=0; j<taps; j++)
-                d -= s->dither.ns_coeffs[j] * ns_errors[pos + j];
+                d -= ns_coeffs[j] * ns_errors[pos + j];
             pos = pos ? pos - 1 : taps - 1;
             d1 = rint(d + noise[i]);
             ns_errors[pos + taps] = ns_errors[pos] = d1 - d;