If we test for {0..9} first, we have tested for 10/16th of all possible characters first and avoid testing the remaining 6/16th of all possible characters, which can be either 6/16th lowercase or 6/16th uppercase.
Signed-off-by: Joe Da Silva <digi...@joescat.com> --- libavcodec/xbmdec.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/libavcodec/xbmdec.c b/libavcodec/xbmdec.c index b783d5abe5..52615dc7ab 100644 --- a/libavcodec/xbmdec.c +++ b/libavcodec/xbmdec.c @@ -28,12 +28,12 @@ static int convert(uint8_t x) { - if (x >= 'a') - x -= 87; - else if (x >= 'A') - x -= 55; - else + if (x <= '9') x -= '0'; + else if (x >= 'a') + x -= ('a' - 10); + else + x -= ('A' - 10); return x; } -- 2.30.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".