tree f548a5048ce859bf02b59377e9e9885031330c24
parent 4ed8a3d8a34e65ffaf6d8eea1246b2d93db7f7c2
author Lei Zhang <thestig@chromium.org> 1559848427 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1559848427 +0000

Make decoding work for PDFs with malformed JPEGs.

There exist scanners that generate PDFs with malformed JPEGs. The
pattern is fairly predictable, so they can still be decoded if the
decoder works around the damage. This CL does that by patching the
in-memory JPEG data, IFF:

- The decoding fails for the first time.
- The failure pattern matches expectations exactly.

BUG=chromium:86459

Change-Id: Iefd1ba24bd1f90774e70412431088ce2ea6e9e93
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/55590
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>