seaweedfs/go/images/preprocess.go
Stuart P. Bentley 1a194a578c More consistency with SeaweedFS name
Among the changes, this replaces a couple instances of "Seaweed File System"
with "SeaweedFS", for the same reason that nobody says "Mongo Data Base".
2015-04-16 21:11:25 +00:00

28 lines
642 B
Go

package images
import (
"path/filepath"
"strings"
)
/*
* Preprocess image files on client side.
* 1. possibly adjust the orientation
* 2. resize the image to a width or height limit
* 3. remove the exif data
* Call this function on any file uploaded to SeaweedFS
*
*/
func MaybePreprocessImage(filename string, data []byte, width, height int) (resized []byte, w int, h int) {
ext := filepath.Ext(filename)
ext = strings.ToLower(ext)
switch ext {
case ".png", ".gif":
return Resized(ext, data, width, height)
case ".jpg", ".jpeg":
data = FixJpgOrientation(data)
return Resized(ext, data, width, height)
}
return data, 0, 0
}