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IFF: decode last 8 pixels per line

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The decodeplane8() function processes one byte of input less than
it should.  Also, the for loop has an unusual style with side-effects
in the controlling expression; replaced with a more intuitive while
loop.

10l to Basty.

Originally committed as revision 23063 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2010-05-09 16:24:20 +00:00
parent e24db3e391
commit 79a9672d45
1 changed files with 2 additions and 1 deletions
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3
libavcodec/iff.c
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@ -141,9 +141,10 @@ static av_cold int decode_init(AVCodecContext *avctx)
static void decodeplane8(uint8_t *dst, const uint8_t *buf, int buf_size, int bps, int plane)
{
const uint64_t *lut = plane8_lut[plane];
for(; --buf_size != 0; dst += 8) {
while (buf_size--) {
uint64_t v = AV_RN64A(dst) | lut[*buf++];
AV_WN64A(dst, v);
dst += 8;
}
}