/
encode.go
70 lines (56 loc) · 1.18 KB
/
encode.go
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package main
import (
"bytes"
"fmt"
"image"
"image/gif"
"io/ioutil"
"os"
"path"
rs "github.com/brydavis/resize" // "../resize"
)
func main() {
dir, _ := ioutil.ReadDir(".")
var imgs []*image.Paletted
for _, file := range dir {
f, _ := os.Open(file.Name())
defer f.Close()
if ext := path.Ext(file.Name()); ext != ".jpg" && ext != ".JPG" && ext != ".jpeg" && ext != ".png" {
fmt.Printf("File not an image: %s\n", file.Name())
} else {
img, err := rs.ResizePixels(f, 400, 400)
if err != nil {
fmt.Println(err)
}
var opt gif.Options
opt.NumColors = 256
buf := new(bytes.Buffer)
gif.Encode(buf, img, &opt)
g, _ := gif.DecodeAll(buf)
imgs = append(imgs, g.Image[0])
}
}
g := new(gif.GIF)
g.Image = imgs
g.Delay = evenDelay(100, len(g.Image))
g.LoopCount = 1000
var opt gif.Options
opt.NumColors = 256
out, err := os.Create("./output.gif")
if err != nil {
fmt.Println(err)
os.Exit(1)
}
err = gif.EncodeAll(out, g)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
fmt.Println("Generated image to output.gif \n")
}
func evenDelay(delay, imgs int) (res []int) {
for i := 0; i < imgs; i++ {
res = append(res, delay)
}
return
}