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| author | Ian Braithwaite <ian@braithwaite.dk> | 2007-03-26 10:03:57 +0000 |
|---|---|---|
| committer | Benjamin Larsson <banan@ludd.ltu.se> | 2007-03-26 10:03:57 +0000 |
| commit | 1890c2acf48eb6471d812915db092e32ed5c9b14 (patch) | |
| tree | 516242e46b8758467267c56ef1476bb560001901 /libavcodec/wma.c | |
| parent | f39c3c885599a3a30abbbca698480b033670ec86 (diff) | |
| download | ffmpeg-1890c2acf48eb6471d812915db092e32ed5c9b14.tar.gz | |
Optimize by building the mdct window and multipying/adding at the same time.
Patch by Ian Braithwaite ian .. braithwaite . dk
[Ffmpeg-devel] WMA decoder speedup 2007-03-22 22:56
Originally committed as revision 8526 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/wma.c')
| -rw-r--r-- | libavcodec/wma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/wma.c b/libavcodec/wma.c index 76f04def74..2241a07a0e 100644 --- a/libavcodec/wma.c +++ b/libavcodec/wma.c @@ -302,7 +302,7 @@ int ff_wma_init(AVCodecContext * avctx, int flags2) window = av_malloc(sizeof(float) * n); alpha = M_PI / (2.0 * n); for(j=0;j<n;j++) { - window[n - j - 1] = sin((j + 0.5) * alpha); + window[j] = sin((j + 0.5) * alpha); } s->windows[i] = window; } |