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vp8: add do { } while(0) around XCHG() macro to avoid confusing if/else

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This is the correct solution to the warning "fixed" in the previous
commit.

Originally committed as revision 24367 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2010-07-20 17:54:25 +00:00
parent 153da88dfb
commit 070ce7efad
1 changed files with 5 additions and 4 deletions
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9
libavcodec/vp8.c
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@ -882,16 +882,17 @@ void xchg_mb_border(uint8_t *top_border, uint8_t *src_y, uint8_t *src_cb, uint8_
src_cb -= uvlinesize;
src_cr -= uvlinesize;
#define XCHG(a,b,xchg)\
#define XCHG(a,b,xchg) do {\
if (xchg) AV_SWAP64(b,a);\
else AV_COPY64(b,a);
else AV_COPY64(b,a);\
} while (0)
XCHG(top_border_m1+8, src_y-8, xchg);
XCHG(top_border, src_y, xchg);
XCHG(top_border+8, src_y+8, 1);
if (mb_x < mb_width-1) {
if (mb_x < mb_width-1)
XCHG(top_border+32, src_y+16, 1);
}
// only copy chroma for normal loop filter
// or to initialize the top row to 127
if (!simple || !mb_y) {