stash/pkg/ffmpeg/encoder_transcode.go

51 lines
929 B
Go

package ffmpeg
import (
"io"
"os"
)
type TranscodeOptions struct {
OutputPath string
}
func (e *Encoder) Transcode(probeResult VideoFile, options TranscodeOptions) {
args := []string{
"-i", probeResult.Path,
"-c:v", "libx264",
"-pix_fmt", "yuv420p",
"-profile:v", "high",
"-level", "4.2",
"-preset", "superfast",
"-crf", "23",
"-vf", "scale=iw:-2",
"-c:a", "aac",
"-strict", "-2",
options.OutputPath,
}
_, _ = e.run(probeResult, args)
}
func (e *Encoder) StreamTranscode(probeResult VideoFile, startTime string) (io.ReadCloser, *os.Process, error) {
args := []string{}
if startTime != "" {
args = append(args, "-ss", startTime)
}
args = append(args,
"-i", probeResult.Path,
"-c:v", "libvpx-vp9",
"-vf", "scale=iw:-2",
"-deadline", "realtime",
"-cpu-used", "5",
"-row-mt", "1",
"-crf", "30",
"-b:v", "0",
"-f", "webm",
"pipe:",
)
return e.stream(probeResult, args)
}