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cover.go
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cover.go
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// Copyright 2023 defsub
//
// This file is part of TakeoutFM.
//
// TakeoutFM is free software: you can redistribute it and/or modify it under the
// terms of the GNU Affero General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option)
// any later version.
//
// TakeoutFM is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
// more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with TakeoutFM. If not, see <https://www.gnu.org/licenses/>.
package playout
import (
"net/http"
"net/url"
"image"
_ "image/jpeg"
_ "image/png"
"github.com/qeesung/image2ascii/ascii"
"github.com/qeesung/image2ascii/convert"
"github.com/takeoutfm/takeout/client"
"github.com/takeoutfm/takeout/lib/header"
)
func asciiImage(context client.Context, url *url.URL, w, h int) ([][]ascii.CharPixel, error) {
convertOptions := convert.DefaultOptions
convertOptions.FixedWidth = w
convertOptions.FixedHeight = h
converter := convert.NewImageConverter()
img, err := openImage(context, url)
if err != nil {
return nil, err
}
return converter.Image2CharPixelMatrix(img, &convertOptions), nil
}
func openImage(context client.Context, url *url.URL) (image.Image, error) {
req, err := http.NewRequest(http.MethodGet, url.String(), nil)
if err != nil {
return nil, err
}
req.Header.Add(header.UserAgent, context.UserAgent())
client := http.Client{}
resp, err := client.Do(req)
if err != nil {
return nil, err
}
img, _, err := image.Decode(resp.Body)
if err != nil {
return nil, err
}
defer resp.Body.Close()
return img, nil
}