Fix corrupted images #4649

[fkaelberer]

Adds support for CMYK multiple component transform and so fixes #4649.

Sorry for that bug. I thought I had read in the JPEG2000 draft that multiple component transform only applies to 3 component images, but I got that wrong.
Additionally, according to the PDF 1.7 spec, page 89, 4 color images should be interpreted as CMYK unless specified otherwise.

[timvandermeij]

/botio-linux preview

[pdfjsbot]

From: Bot.io (Linux)

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Command cmd_preview from @timvandermeij received. Current queue size: 0

Live output at: http://107.21.233.14:8877/81a2597c85980af/output.txt

[pdfjsbot]

From: Bot.io (Linux)

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Success

Full output at http://107.21.233.14:8877/81a2597c85980af/output.txt

Total script time: 0.37 mins

Published

• Viewer: http://107.21.233.14:8877/81a2597c85980af/web/viewer.html
• B2G Viewer: http://107.21.233.14:8877/81a2597c85980af/extensions/b2g/content/web/viewer.html
• Extension: http://107.21.233.14:8877/81a2597c85980af/extensions/firefox/pdf.js.xpi
• Extension (AMO): http://107.21.233.14:8877/81a2597c85980af/extensions/firefox/pdf.js.amo.xpi

[timvandermeij]

/botio test

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Live output at: http://107.21.233.14:8877/a053f6930c6095e/output.txt

[pdfjsbot]

From: Bot.io (Windows)

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Command cmd_test from @timvandermeij received. Current queue size: 0

Live output at: http://107.22.172.223:8877/0d14e57edcd7644/output.txt

[pdfjsbot]

From: Bot.io (Windows)

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Success

Full output at http://107.22.172.223:8877/0d14e57edcd7644/output.txt

Total script time: 22.20 mins

• Font tests: Passed
• Unit tests: Passed
• Regression tests: Passed

[pdfjsbot]

From: Bot.io (Linux)

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Success

Full output at http://107.21.233.14:8877/a053f6930c6095e/output.txt

Total script time: 25.79 mins

• Font tests: Passed
• Unit tests: Passed
• Regression tests: Passed

[yurydelendik]

JPEG2000 non-draft has only "The ICT [Irreversible multiple component transformation] is a decorrelating transformation applied to the first three components of an image" and "If a multiple component transform is specified within the codestream, the image must be in an RGB colourspace and the red, green and blue colours as channels 0, 1 and 2 in the codestream, respectively.". It's a little bit confusing, yes. Anyway, I agree with the change. Thank you for the patch.