freeze if a page cannot be decoded

[jwilk]

Issue reported by GStager at Bitbucket:

- Page #389
- Page #390
- Page #391
- Page #392
Unexpected End Of File.
- Page #393

... and freeze.

File: http://libgen.org/get?nametype=md5&md5=02AFD32D47B492D04DDFBD2359772884

parms: ~/ocrodjvu-0.7.15/ocrodjvu --in-place -e tesseract -t words --html5 --clear-text -l rus+eng 02AFD32D47B492D04DDFBD2359772884.djvu

[jwilk]

As the warning suggests, page 392 is broken:

$ ddjvu -page=392 02AFD32D47B492D04DDFBD2359772884.djvu 
ddjvu: Cannot decode page 392.

But of course ocrodjvu shouldn't hang. I'll get that fixed soon.

[jwilk]

Fixed in 56aab44. Instead of hanging, ocrodjvu will throw an exception. Then you should be able to use --on-error=resume to skip over undecodable pages.

[jwilk]

Fixed in 0.7.16.