refactor ffmpeg, download styling

ffmpeg/ffprobe.go

@@ -0,0 +1,26 @@
+package ffmpeg
+
+import (
+	"bytes"
+	"os/exec"
+	"strings"
+)
+
+// runs ffprobe with the provided args and returns (stdout, stderr, error)
+func Ffprobe(args ...string) ([]byte, []byte, error) {
+	ffprobe := "ffprobe"
+	log.Infoln(ffprobe, strings.Join(args, " "))
+	cmd := exec.Command(ffprobe, args...)
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	cmd.Stdout = &stdout
+	cmd.Stderr = &stderr
+	err := cmd.Run()
+
+	if err != nil {
+		log.Errorf("ffprobe error: %v", err)
+	}
+	log.Infoln("stdout:", stdout.String())
+	log.Infoln("stderr:", stderr.String())
+	return stdout.Bytes(), stderr.Bytes(), err
+}