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Cover format, issue #18

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This commit is contained in:
Milan Nikolic
2023-03-04 10:27:01 +01:00
parent 7082e3db90
commit 64fb152c36
3 changed files with 18 additions and 17 deletions
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4
README.md
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@@ -113,8 +113,10 @@ This is what it looks like in the PCManFM file manager:
            Image height (default "0")
        --fit
            Best fit for required width and height (default "false")
        --format
            Image format, valid values are jpeg, png, tiff, bmp, webp, avif (default "jpeg")
        --quality
            JPEG image quality (default "75")
            Image quality (default "75")
        --filter
            0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos (default "2")
        --outdir

30
cbconvert.go
View File

@@ -166,12 +166,11 @@ func (c *Convertor) convertImage(ctx context.Context, img image.Image, index int
c.OnProgress()
}
var ext = c.Opts.Format
var fileName string
if pathName != "" {
fileName = filepath.Join(c.Workdir, fmt.Sprintf("%s.%s", c.baseNoExt(pathName), ext))
fileName = filepath.Join(c.Workdir, fmt.Sprintf("%s.%s", c.baseNoExt(pathName), c.Opts.Format))
} else {
fileName = filepath.Join(c.Workdir, fmt.Sprintf("%03d.%s", index, ext))
fileName = filepath.Join(c.Workdir, fmt.Sprintf("%03d.%s", index, c.Opts.Format))
}
img = c.transformImage(img)
@@ -1136,20 +1135,19 @@ func (c *Convertor) ExtractCover(fileName string, fileInfo os.FileInfo) error {
}
}
fname := filepath.Join(c.Opts.Outdir, fmt.Sprintf("%s.jpg", c.baseNoExt(fileName)))
file, err := os.Create(fname)
if err != nil {
return fmt.Errorf("extractCover: %w", err)
}
fName := filepath.Join(c.Opts.Outdir, fmt.Sprintf("%s.%s", c.baseNoExt(fileName), c.Opts.Format))
err = jpeg.Encode(file, cover, &jpeg.Options{Quality: c.Opts.Quality})
if err != nil {
return fmt.Errorf("extractCover: %w", err)
}
err = file.Close()
if err != nil {
return fmt.Errorf("extractCover: %w", err)
switch c.Opts.Format {
case "jpeg", "png", "tiff", "webp", "avif":
err = c.encodeImage(cover, fName)
if err != nil {
return err
}
case "bmp":
err = c.encodeIM(cover, fName)
if err != nil {
return err
}
}
return nil

1
cmd/cbconvert/main.go
View File

@@ -152,6 +152,7 @@ func parseFlags() (cbconvert.Options, []string) {
cover.IntVar(&opts.Width, "width", 0, "Image width")
cover.IntVar(&opts.Height, "height", 0, "Image height")
cover.BoolVar(&opts.Fit, "fit", false, "Best fit for required width and height")
cover.StringVar(&opts.Format, "format", "jpeg", "Image format, valid values are jpeg, png, tiff, bmp, webp, avif")
cover.IntVar(&opts.Quality, "quality", 75, "Image quality")
cover.IntVar(&opts.Filter, "filter", 2, "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos")
cover.StringVar(&opts.Outdir, "outdir", ".", "Output directory")