53 lines
812 B
Go
53 lines
812 B
Go
package thumbnail
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import (
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"bytes"
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"image"
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"image/png"
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"io"
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"os/exec"
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)
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func (this *DirectThumbnailer) videoSnapshot(absPath string) (image.Image, error) {
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cmd := exec.Command(
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"ffmpeg",
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"-loglevel", "0",
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"-timelimit", "10", // seconds
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"-an",
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"-i", absPath,
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"-vf", `thumbnail`,
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"-frames:v", "1",
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"-f", "image2pipe",
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"-c:v", "png", // always PNG output - we will resample/rescale it ourselves
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"-",
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)
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// -ss 00:00:30
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stdout, err := cmd.StdoutPipe()
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if err != nil {
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return nil, err
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}
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err = cmd.Start()
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if err != nil {
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return nil, err
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}
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out := bytes.Buffer{}
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_, err = io.Copy(&out, stdout)
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if err != nil {
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return nil, err
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}
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err = cmd.Wait()
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if err != nil {
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return nil, err
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}
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// Try to decode as PNG image
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return png.Decode(bytes.NewReader(out.Bytes()))
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}
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