Add program to list SegmentMaps and Playlist durations

cmd/mpls_map/main.go

@@ -0,0 +1,58 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"timmy.narnian.us/mpls"
+)
+
+func main() {
+	var (
+		err     error
+		dir     *os.File
+		files   []string
+		Seconds int64
+	)
+	flag.Int64Var(&Seconds, "s", 120, "Minimum duration of playlist")
+	flag.Int64Var(&Seconds, "seconds", 120, "Minimum duration of playlist")
+	flag.Parse()
+	name := filepath.Join(flag.Arg(0), "BDMV", "PLAYLIST")
+	dir, err = os.Open(name)
+	if err != nil {
+		panic(err)
+	}
+	files, err = dir.Readdirnames(0)
+	if err != nil {
+		panic(err)
+	}
+	for _, v := range files {
+		var (
+			file     *os.File
+			playlist mpls.MPLS
+			duration time.Duration
+		)
+
+		file, err = os.Open(filepath.Join(name, v))
+		if err != nil {
+			fmt.Fprintln(os.Stderr, err)
+			continue
+		}
+
+		playlist, err = mpls.Parse(file)
+		if err != nil {
+			fmt.Fprintln(os.Stderr, err)
+			continue
+		}
+		if playlist.Duration > Seconds {
+			duration = time.Duration(playlist.Duration) * time.Second
+			fmt.Printf("%s %3d:%02d\n", v, int(duration.Minutes()), int(duration.Seconds())%60)
+
+			fmt.Println(strings.Join(playlist.SegmentMap, ","))
+		}
+	}
+}