Difference between revisions of "Projects/Nepomuk/FileIndexing"

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(Changed KDE to KDE apps and platform and corrected some typos)
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Nepomuk currently acts as the file indexer for KDE. Even though we frequently tout that we are not just a file indexer, we need to index the files properly.
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Nepomuk currently acts as the file indexer for the KDE platform and KDE applications. Even though we frequently tout that we are not just a file indexer, we need to index the files properly.
  
= File Indexing solutions =
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= File indexing solutions =
  
 
== Strigi ==
 
== Strigi ==
KDE 4.9, currently uses libstreamanalyzer to index the files. Current problems with strigi -
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The KDE platform and applications in version 4.9, currently uses libstreamanalyzer to index the files. Current problems with strigi -
  
 
* Difficult to contribute to
 
* Difficult to contribute to
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We just just use exiv2 and cover almost everything. Plus the code would be super simple.
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We just use exiv2 and cover almost everything. Plus the code would be super simple.
  
 
== Videos ==
 
== Videos ==
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** mobi
 
** mobi
 
** spreadsheet formats
 
** spreadsheet formats
** Presentation Formats
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** presentation Formats
 
** lyx
 
** lyx
 
** tex
 
** tex
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* ISO images
 
* ISO images
* Executable Files
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* Executable files

Revision as of 16:58, 10 September 2012

Nepomuk currently acts as the file indexer for the KDE platform and KDE applications. Even though we frequently tout that we are not just a file indexer, we need to index the files properly.

File indexing solutions

Strigi

The KDE platform and applications in version 4.9, currently uses libstreamanalyzer to index the files. Current problems with strigi -

  • Difficult to contribute to
  • No documentation
  • Un-maintained
  • Does not reuse libraries

Lists the current status of indexing different files.

Roll our own?

File Formats

We list down all the different file formats, and which all are supported by the different file indexing solutions.

Images

  • JPEG - Use exiv - strigi also uses exiv - currently broken
  • PNG - Strigi rolls its own - detects the application name, color depth and interlace mode as well
  • GIF - there isn't much metadata
  • EXIF
  • TIFF
  • BMP
  • SVG - Strigi stores them as plain text


We just use exiv2 and cover almost everything. Plus the code would be super simple.

Videos

Audio

    • MP3

Documents

    • doc
    • docx
    • odf
    • pdfs
    • epub
    • mobi
    • spreadsheet formats
    • presentation Formats
    • lyx
    • tex
    • cbz - Comic books
  • Archives
    • tar
    • gzip
    • whatever ..
  • Emails
    • There was a bug report
  • Text Files
    • Text files
    • Source Code
  • ISO images
  • Executable files

Content is available under Creative Commons License SA 4.0 unless otherwise noted.