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idec: fix WebPIUpdate failure

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If the first call to WebPIUpdate contained all of partition 0, but not
enough to decode a macroblock the test for max macro block size could
fail (4096 bytes) due to a memory buffer offset not being updated.
This change offsets the buffer in the same manner as Append().

Fixes issue #105.

Change-Id: I90ca3d0dde92eedc076933b8349d2d297f2469e8
This commit is contained in:
James Zern 2012-01-31 15:26:35 -08:00
parent 01b6380656
commit 89cd1bb85b
1 changed files with 1 additions and 1 deletions
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2
src/dec/idec.c
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@ -310,12 +310,12 @@ static int CopyParts0Data(WebPIDecoder* idec) {
}
memcpy(part0_buf, br->buf_, psize);
mem->part0_buf_ = part0_buf;
mem->start_ += psize;
br->buf_ = part0_buf;
br->buf_end_ = part0_buf + psize;
} else {
// Else: just keep pointers to the partition #0's data in dec_->br_.
}
mem->start_ += psize;
return 1;
}