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| author | Simon Bünzli <zeniko@gmail.com> | 2013-08-18 13:17:25 +0200 |
|---|---|---|
| committer | Robin Watts <robin.watts@artifex.com> | 2013-08-28 13:35:49 +0100 |
| commit | e5451f0cb4cadeae01769221fe7f505ca155b9a1 (patch) | |
| tree | 4a61d0b5bea81d19c14959f20d2d53e7edd4dd29 | |
| parent | 4f20460b94053d10a464b565f772f07e93748e24 (diff) | |
| download | mupdf-e5451f0cb4cadeae01769221fe7f505ca155b9a1.tar.xz | |
sync bits when closing an LZW stream
Content streams may contain multiple inline images compressed as LZW
data. The LZW filter used for such inline images might in some cases
be closed in a state where less than 8 bits remain unread. The parent
stream remembers that number (in stream->avail) and uses it again
when reading the next inline image instead of resetting the remaining
bit count when reading the next entire byte after the first inline image
(or resetting it when closing the LZW stream as this patch does).
| -rw-r--r-- | source/fitz/filter-lzw.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/source/fitz/filter-lzw.c b/source/fitz/filter-lzw.c index 73909ca1..63d6555b 100644 --- a/source/fitz/filter-lzw.c +++ b/source/fitz/filter-lzw.c @@ -169,6 +169,7 @@ static void close_lzwd(fz_context *ctx, void *state_) { fz_lzwd *lzw = (fz_lzwd *)state_; + fz_sync_bits(lzw->chain); fz_close(lzw->chain); fz_free(ctx, lzw); } |