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Remove reimplementation of av_log2 

Originally committed as revision 9735 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2007-07-18 14:15:14 +00:00
parent ef0d7a0d4f
commit d0da802049
1 changed files with 2 additions and 10 deletions
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12
libavcodec/alac.c
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@ -139,17 +139,9 @@ static int alac_set_info(ALACContext *alac)
return 0; return 0;
} }
/* hideously inefficient. could use a bitmask search, static inline int count_leading_zeros(int32_t input)
* alternatively bsr on x86,
*/
static int count_leading_zeros(int32_t input)
{ {
int i = 0; return 31-av_log2(input);
while (!(0x80000000 & input) && i < 32) {
i++;
input = input << 1;
}
return i;
} }
static void bastardized_rice_decompress(ALACContext *alac, static void bastardized_rice_decompress(ALACContext *alac,