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svq3_get_se_golomb() fix

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Originally committed as revision 3849 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-01-19 13:03:38 +00:00
parent 61f040dd1a
commit 895345da9a
1 changed files with 5 additions and 2 deletions
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7
libavcodec/golomb.h
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@ -167,7 +167,10 @@ static inline int svq3_get_se_golomb(GetBitContext *gb){
return ff_interleaved_se_golomb_vlc_code[buf];
}else{
buf |=1;
LAST_SKIP_BITS(re, gb, 8);
UPDATE_CACHE(re, gb);
buf |= 1 | (GET_CACHE(re, gb) >> 8);
if((buf & 0xAAAAAAAA) == 0)
return INVALID_VLC;
@ -175,7 +178,7 @@ static inline int svq3_get_se_golomb(GetBitContext *gb){
buf = (buf << 2) - ((buf << log) >> (log - 1)) + (buf >> 30);
}
LAST_SKIP_BITS(re, gb, 63 - 2*log);
LAST_SKIP_BITS(re, gb, 63 - 2*log - 8);
CLOSE_READER(re, gb);
return (signed) (((((buf << log) >> log) - 1) ^ -(buf & 0x1)) + 1) >> 1;