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lavc/xfaceenc: prefer do{}while() over for(){} construct in xface_encode_frame() loop

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Slightly simplify readability, since the initial check is unnecessary.
This commit is contained in:
Stefano Sabatini 2012-11-03 23:26:43 +01:00
parent 33d54af427
commit aa48446c9a
1 changed files with 3 additions and 2 deletions
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5
libavcodec/xfaceenc.c
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@ -167,14 +167,15 @@ static int xface_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
/* convert image from MONOWHITE to 1=black 0=white bitmap */
buf = frame->data[0];
for (i = 0, j = 0; i < XFACE_PIXELS; ) {
i = j = 0;
do {
for (k = 0; k < 8; k++)
xface->bitmap[i++] = (buf[j]>>(7-k))&1;
if (++j == XFACE_WIDTH/8) {
buf += frame->linesize[0];
j = 0;
}
}
} while (i < XFACE_PIXELS);
/* create a copy of bitmap */
memcpy(bitmap_copy, xface->bitmap, XFACE_PIXELS);