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package main
import (
"flag"
"fmt"
"os"
"path/filepath"
thumbnailgen "pablu.de/thumbnail-gen"
)
var (
pathFlag = flag.String("path", "", "path to video")
intervalFlag = flag.Int("interval", 20, "Interval in seconds between thumbnails")
maxThumbnailsFlag = flag.Int("max", 0, "Max Thumbnails, default as much as possible with interval")
blackFilterFlag = flag.Bool("filter", true, "Try to filter out black frames, might be an expensive operation")
formatFlag = flag.String("format", "png", "Output format")
segmentsFlag = flag.Bool("segments", false, "If active uses interval for how many segments are supposed to be done")
widthFlag = flag.Int("width", -1, "Set the width of the picture to scale to, -1 = max")
)
func main() {
flag.Parse()
if *pathFlag != "" {
// thumbnails, num, err := thumbnailgen.GetThumbnail(*pathFlag, *intervalFlag, *maxThumbnailsFlag, *blackFilterFlag)
opts := thumbnailgen.NewDefaultOptions()
thumbnails, num, err := opts.Apply(func(o *thumbnailgen.Options) {
o.EnableFilter = *blackFilterFlag
o.Interval = *intervalFlag
o.Format = *formatFlag
o.UseSegments = *segmentsFlag
o.Segments = *intervalFlag
o.Scale = fmt.Sprintf("%d:-1", *widthFlag)
}).GetThumbnail(*pathFlag)
if err != nil {
panic(err)
}
fmt.Printf("Extracted %d thumbnails\n", num)
name := filepath.Base(*pathFlag)
for i, thumbnail := range thumbnails[:num] {
err := os.WriteFile(fmt.Sprintf("%s-%d.%s", name, i, *formatFlag), thumbnail, 0600)
if err != nil {
panic(err)
}
}
}
}
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