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Slightly optimize base64 encode.

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Move handling of last byte outside of innermost loop.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
This commit is contained in:
Reimar Döffinger 2012-01-20 22:16:30 +01:00
parent 6af4c9814a
commit d60d718c49
1 changed files with 3 additions and 1 deletions
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4
libavutil/base64.c
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@ -93,8 +93,10 @@ char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size)
do {
*dst++ = b64[(i_bits << 6 >> i_shift) & 0x3f];
i_shift -= 6;
} while (i_shift > 6 || (bytes_remaining == 0 && i_shift > 0));
} while (i_shift > 6);
}
if (i_shift > 0)
*dst++ = b64[(i_bits << 6 >> i_shift) & 0x3f];
while ((dst - ret) & 3)
*dst++ = '=';
*dst = '\0';