server/lib/private/Preview
Roeland Jago Douma ce10f8b8c4
Only generate previews in powers of 4 and set min
Before we'd round up all preview request to their nearest power of two.
This resulted still in a lot of possible images. Generating a lot of
server load and taking up a lot of space.

This moves it to previews to be powers of 4: 64, 256, 1024 and 4096
Also the first two powers are always skipped (4, 16) as it doesn't make
sense to generate previews for that.

We cache preview pretty agressively and I feel this is a better
tradeoff.

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
2018-10-31 19:34:42 +01:00
..
BackgroundCleanupJob.php
Bitmap.php
BMP.php
Font.php
Generator.php Only generate previews in powers of 4 and set min 2018-10-31 19:34:42 +01:00
GeneratorHelper.php
GIF.php
HEIC.php
Illustrator.php
Image.php
JPEG.php
MarkDown.php
Movie.php
MP3.php
MSOffice2003.php
MSOffice2007.php
MSOfficeDoc.php
Office.php
OpenDocument.php
PDF.php
Photoshop.php
PNG.php
Postscript.php
Provider.php
StarOffice.php
SVG.php
TIFF.php
TXT.php
Watcher.php
WatcherConnector.php
XBitmap.php