Helpers for running ffmpeg commands in Go.
You need ffmpeg in PATH to use this package.
Alternatively, you can provide path to binary in ffrun.Options.
package main
import (
"context"
"fmt"
"os"
"path/filepath"
"github.com/go-faster/errors"
"github.com/ernado/ff/ffprobe"
"github.com/ernado/ff/ffrun"
)
func run() error {
ctx := context.Background()
i := ffrun.New(ffrun.Options{})
filePath := filepath.Join("ffrun", "_testdata", "bbb.mp4")
// Probe.
probe, err := i.Probe(ctx, filePath)
if err != nil {
return errors.Wrap(err, "probe")
}
summary, err := ffprobe.ParseSummary(probe)
if err != nil {
return errors.Wrap(err, "summary")
}
fmt.Println("Duration:", summary.Duration)
// Encode.
tempDir, err := os.MkdirTemp("", "output")
if err != nil {
return errors.Wrap(err, "temp dir")
}
defer func() {
_ = os.RemoveAll(tempDir)
fmt.Println("cleaned up")
}()
outputPath := filepath.Join(tempDir, "output.mp4")
if err := i.Run(ctx, ffrun.RunOptions{
Input: filePath,
Output: outputPath,
Progress: func(p ffrun.Progress) {
fmt.Println("progress:", p.Complete)
},
Args: []string{
"-t", "5",
"-ac", "2",
},
}); err != nil {
return errors.Wrap(err, "run")
}
fmt.Println("done")
return nil
}
func main() {
if err := run(); err != nil {
_, _ = fmt.Fprintf(os.Stderr, "error: %+v\n", err)
os.Exit(1)
}
}