generic-library/ffmpeg
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+ (sign&1) -> -sign (1 instruction less)

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Originally committed as revision 5253 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-03-31 17:01:58 +00:00
parent ac2549b583
commit e7e2025a53
1 changed files with 1 additions and 1 deletions
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2
libavcodec/mjpeg.c
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@ -1291,7 +1291,7 @@ static int decode_block(MJpegDecodeContext *s, DCTELEM *block,
{ {
int cache=GET_CACHE(re,gb); int cache=GET_CACHE(re,gb);
int sign=(~cache)>>31; int sign=(~cache)>>31;
level = (NEG_USR32(sign ^ cache,code) ^ sign) + (sign&1) ; level = (NEG_USR32(sign ^ cache,code) ^ sign) - sign;
} }
LAST_SKIP_BITS(re, &s->gb, code) LAST_SKIP_BITS(re, &s->gb, code)