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| author | Alberto Delmás <adelmas@gmail.com> | 2012-09-03 17:32:01 +0200 |
|---|---|---|
| committer | Kostya Shishkov <kostya.shishkov@gmail.com> | 2012-09-06 20:48:07 +0200 |
| commit | 290d1022b2d90503735728d7feed35a53a69f631 (patch) | |
| tree | 381cad882e4add9e46ea3de0dec10374032fd664 | |
| parent | 9699b3a2d7ebc62ae58c4e70997190f5f7b45d27 (diff) | |
| download | ffmpeg-290d1022b2d90503735728d7feed35a53a69f631.tar.gz | |
mss2: simplify loop in decode_rle()
It calculates the sum of power of two series, which can be done in one step.
Suggested by Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
| -rw-r--r-- | libavcodec/mss2.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/libavcodec/mss2.c b/libavcodec/mss2.c index 9914562da6..fbdc72c5c7 100644 --- a/libavcodec/mss2.c +++ b/libavcodec/mss2.c @@ -335,8 +335,7 @@ static int decode_rle(GetBitContext *gb, uint8_t *pal_dst, int pal_stride, else repeat = get_bits(gb, b); - while (b--) - repeat += 1 << b; + repeat += (1 << b) - 1; if (last_symbol == -2) { int skip = FFMIN(repeat, pal_dst + w - pp); |