/
main.go
189 lines (166 loc) · 3.48 KB
/
main.go
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package main
import (
"crypto/tls"
"flag"
"fmt"
"image"
"io"
"io/ioutil"
"net/http"
"net/url"
"os"
"path/filepath"
"strings"
"time"
"github.com/wzshiming/pic2ascii"
"image/gif"
_ "image/jpeg"
_ "image/png"
_ "golang.org/x/image/bmp"
_ "golang.org/x/image/tiff"
_ "golang.org/x/image/webp"
)
var (
pic = flag.String("f", "", "input image file")
chars = flag.String("c", `MMWNXK0Okxou=:"'. `, "chars")
r = flag.Bool("r", false, "reverse chars")
w = flag.Uint("w", 0, "resize width")
h = flag.Uint("h", 0, "resize height")
o = flag.String("o", "", "output file")
t = flag.String("t", "", "file type")
m = flag.Int("m", -1, "Gif max loop count")
prefix = flag.String("p", "", "prefix")
suffix = flag.String("s", "\n", "suffix")
)
func init() {
flag.Parse()
if *r {
*chars = pic2ascii.ReverseString(*chars)
}
if *t == "" {
*t = strings.TrimPrefix(filepath.Ext(*pic), ".")
}
*t = strings.ToLower(*t)
}
func main() {
if *pic == "" {
flag.Usage()
return
}
f, err := getFile(*pic)
if err != nil {
fmt.Println(err)
return
}
defer f.Close()
switch *t {
case "gif":
err = showGIF(f)
case "mp4", "ts", "rtmp", "rtsp", "flv", "aac":
if pic2ascii.VideoSlice != nil {
err = showVideo(f)
} else {
err = fmt.Errorf("The current version does not support video.")
}
default:
// case "jpeg", "jpg", "png", "bmp", "tiff", "webp":
err = showElse(f)
}
if err != nil {
fmt.Println(err)
return
}
return
}
func showVideo(buf io.ReadCloser) error {
var sum time.Duration
dds := []string{}
err := pic2ascii.VideoSlice(buf, func(dur time.Duration, img image.Image) {
v := toAscii(img)
fmt.Println(v)
time.Sleep(dur - sum)
sum = dur
dds = append(dds, v)
})
if err != nil {
return err
}
if *o != "" {
return ioutil.WriteFile(*o, []byte(strings.Join(dds, "\n")), 0666)
}
return nil
}
func showGIF(buf io.Reader) error {
img, err := gif.DecodeAll(buf)
if err != nil {
return err
}
dds := []string{}
pic2ascii.SliceGIF(img, func(v image.Image) {
dd := toAscii(v)
fmt.Println(dd)
time.Sleep(time.Duration(img.Delay[len(dds)]) * time.Second / 100)
dds = append(dds, dd)
})
if *o != "" {
return ioutil.WriteFile(*o, []byte(strings.Join(dds, "\n")), 0666)
}
if *m != 0 {
img.LoopCount = *m
}
for i := 0; i != img.LoopCount; i++ {
for k, v := range dds {
fmt.Println(v)
time.Sleep(time.Duration(img.Delay[k]) * time.Second / 100)
}
}
return nil
}
func showElse(buf io.Reader) error {
img, _, err := image.Decode(buf)
if err != nil {
return err
}
dd := toAscii(img)
fmt.Print(dd)
if *o != "" {
return ioutil.WriteFile(*o, []byte(dd), 0666)
}
return nil
}
func toAscii(img image.Image) string {
img = pic2ascii.NewReset(img)
if *w != 0 || *h != 0 {
img = pic2ascii.NewResize(img, int(*w), int(*h))
}
return string(pic2ascii.ToAscii(img, []rune(*chars), []rune(*prefix), []rune(*suffix)))
}
func getFile(filpath string) (io.ReadCloser, error) {
u, err := url.Parse(filpath)
if err != nil {
return nil, err
}
switch u.Scheme {
case "http", "https":
cli := &http.Client{
Transport: &http.Transport{
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
},
}
resp, err := cli.Get(u.String())
if err != nil {
return nil, err
}
return resp.Body, nil
case "file", "":
file, err := os.OpenFile(u.Path, os.O_RDONLY, 0)
if err != nil {
return nil, err
}
return file, nil
default:
return nil, fmt.Errorf("unknown scheme %v", u.Scheme)
}
}