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Change implementation for ff_data_to_hex(), this is faster. See discussion on 

mailinglist in "Realmedia patch" thread.

Originally committed as revision 15006 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ronald S. Bultje 2008-08-28 12:00:58 +00:00
parent a169f49881
commit 452d3edb37
1 changed files with 6 additions and 11 deletions
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17
libavformat/utils.c
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@ -3213,22 +3213,17 @@ void url_split(char *proto, int proto_size,
}
}
static void digit_to_char(char *dst, uint8_t src)
{
if (src < 10) {
*dst = '0' + src;
} else {
*dst = 'A' + src - 10;
}
}
char *ff_data_to_hex(char *buff, const uint8_t *src, int s)
{
int i;
static const char hex_table[16] = { '0', '1', '2', '3',
'4', '5', '6', '7',
'8', '9', 'A', 'B',
'C', 'D', 'E', 'F' };
for(i = 0; i < s; i++) {
digit_to_char(buff + 2 * i, src[i] >> 4);
digit_to_char(buff + 2 * i + 1, src[i] & 0xF);
buff[i * 2] = hex_table[src[i] >> 4];
buff[i * 2 + 1] = hex_table[src[i] & 0xF];
}
return buff;