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add bmp/webm thumbnailing support

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This commit is contained in:
mappu 2018-06-09 12:25:27 +12:00
parent 03b7fcdd89
commit 020082d830
1 changed files with 18 additions and 18 deletions
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34
Thumbnailer.go
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@ -2,15 +2,19 @@ package thumbnail
import (
"errors"
"image"
"image/gif"
"image/jpeg"
"image/png"
"io"
"mime"
"os"
"path/filepath"
"strings"
lru "github.com/hashicorp/golang-lru"
"golang.org/x/image/bmp"
"golang.org/x/image/webp"
)
type OutputFormat uint8
@ -105,7 +109,10 @@ func (this *Thumbnailer) RenderFile(absPath string) ([]byte, error) {
func FiletypeSupported(ext string) bool {
switch strings.ToLower(ext) {
case ".jpg", ".jpeg", ".png", ".gif", ".avi", ".mkv", ".mp4", ".ogm", ".wmv", ".flv", ".rm", ".rmvb":
case
".jpg", ".jpeg", ".png", ".gif",
".avi", ".mkv", ".mp4", ".ogm", ".wmv", ".flv", ".rm", ".rmvb",
".bmp", ".webp":
return true
default:
return false
@ -124,24 +131,17 @@ func (this *Thumbnailer) RenderFile_NoCache_MimeType(absPath, mimeType string) (
}
defer fh.Close()
if mimeType == `image/jpeg` {
src, err := jpeg.Decode(fh)
if err != nil {
return nil, err
type imageDecoder func(io.Reader) (image.Image, error)
imageDecoders := map[string]imageDecoder{
`image/jpeg`: jpeg.Decode,
`image/png`: png.Decode,
`image/gif`: gif.Decode,
`image/webp`: webp.Decode,
`image/bmp`: bmp.Decode,
}
return this.RenderScaledImage(src)
} else if mimeType == `image/png` {
src, err := png.Decode(fh)
if err != nil {
return nil, err
}
return this.RenderScaledImage(src)
} else if mimeType == `image/gif` {
src, err := gif.Decode(fh)
if fn, ok := imageDecoders[mimeType]; ok {
src, err := fn(fh)
if err != nil {
return nil, err
}