encoder.go

package main

// go run encode.go infile out.ts sw

import (
	"log"
	"os"

	"github.com/livepeer/lpms/ffmpeg"
)

func main() {
	if len(os.Args) <= 1 {
		log.Fatal("missing input name")
	}
	fname := os.Args[1]
	var out string
	if len(os.Args) <= 2 {
		out = "out.ts"
	} else {
		out = os.Args[2]
	}
	accel := ffmpeg.Nvidia
	if len(os.Args) >= 4 {
		s := os.Args[3]
		if "nv" == s {
			// default
			accel = ffmpeg.Nvidia
		} else if "sw" == s {
			accel = ffmpeg.Software
		} else {
			log.Println("unrecognized accel, using default nvidia")
			accel = ffmpeg.Nvidia
		}
	}
	log.Println("Using output", out)
	ffmpeg.FfmpegSetLogLevel(ffmpeg.FFLogTrace)
	prof := ffmpeg.P240p30fps16x9
	prof.Framerate = 0 // pass through
	if _, err := ffmpeg.Transcode3(&ffmpeg.TranscodeOptionsIn{
		Fname: fname,
		Accel: accel,
	}, []ffmpeg.TranscodeOptions{{
		Oname:        out,
		Profile:      prof,
		Accel:        accel,
		AudioEncoder: ffmpeg.ComponentOptions{Name: "drop"},
	}}); err != nil {
		panic(err)
	}
	log.Println("all done")
}