Bug 699829 - Investigate files where OpenJPEG is slower and/or more memory demanding that Luratech JPX
Summary: Investigate files where OpenJPEG is slower and/or more memory demanding that ...
Status: UNCONFIRMED
Alias: None
Product: Ghostscript
Classification: Unclassified
Component: JPX/JBIG2 encode/decode (show other bugs)
Version: master
Hardware: PC Windows 10
: P4 enhancement
Assignee: Sebastian Rasmussen
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-09-28 21:34 UTC by Ray Johnston
Modified: 2018-09-28 21:38 UTC (History)
0 users

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Attachments
OpenJPEG_Luratech_JPX.xlsx (9.99 KB, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet)
2018-09-28 21:34 UTC, Ray Johnston 		Details
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Description Ray Johnston 2018-09-28 21:34:49 UTC 
Created attachment 15703 [details]
OpenJPEG_Luratech_JPX.xlsx

I ran Ghostscript on PDF files that use JPXDecode filters for images, and
there are some files where OpenJPEG is significantly worse than the Luratech
decoder.

First, we should validate this performance difference (possibly with mupdf).
After validation, we should look to see if we can identify performance
bottlenecks in OpenJPEG, or determine if the memory usage can be improved.