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avcodec/pnm_parser: Factor out next/index compensation

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Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-04-06 14:43:14 +02:00
parent 1d43d72b18
commit 3fe37033b9
1 changed files with 4 additions and 6 deletions
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10
libavcodec/pnm_parser.c
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@ -70,19 +70,17 @@ retry:
c = *bs++;
} else if (c == 'P') {
next = bs - pnmctx.bytestream_start + skip - 1;
if (pnmctx.bytestream_start != buf + skip)
next -= pc->index;
break;
}
}
} else {
next = pnmctx.bytestream - pnmctx.bytestream_start + skip
+ av_image_get_buffer_size(avctx->pix_fmt, avctx->width, avctx->height, 1);
if (pnmctx.bytestream_start != buf + skip)
next -= pc->index;
if (next > buf_size)
next = END_NOT_FOUND;
}
if (next != END_NOT_FOUND && pnmctx.bytestream_start != buf + skip)
next -= pc->index;
if (next > buf_size)
next = END_NOT_FOUND;
if (ff_combine_frame(pc, next, &buf, &buf_size) < 0) {
*poutbuf = NULL;