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Add get_ue_golomb_31()

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Originally committed as revision 16298 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-12-23 21:05:47 +00:00
parent be8497b0ac
commit 0e921e97c1
1 changed files with 17 additions and 0 deletions
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17
libavcodec/golomb.h
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@ -74,6 +74,23 @@ static inline int get_ue_golomb(GetBitContext *gb){
} }
} }
/**
* read unsigned exp golomb code, constraint to a max of 31
*/
static inline int get_ue_golomb_31(GetBitContext *gb){
unsigned int buf;
OPEN_READER(re, gb);
UPDATE_CACHE(re, gb);
buf=GET_CACHE(re, gb);
buf >>= 32 - 9;
LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
CLOSE_READER(re, gb);
return ff_ue_golomb_vlc_code[buf];
}
static inline int svq3_get_ue_golomb(GetBitContext *gb){ static inline int svq3_get_ue_golomb(GetBitContext *gb){
uint32_t buf; uint32_t buf;