CLI playlist support

cmd/mxl-player/main.go

@@ -53,6 +53,7 @@ type appArgs struct {
 	ListGPU       bool
 	SyncRequested bool
 	MaxAttempts   int
+	PlaylistPath  string
 }
 
 func printCliHelp(fs *pflag.FlagSet) {
@@ -129,6 +130,12 @@ func main() {
 		0,
 		"Maximum connection attempts per playback lifecycle; 0 retries indefinitely",
 	)
+	flagSet.StringVar(
+		&args.PlaylistPath,
+		"playlist",
+		"",
+		"Load playlist from a JSON file",
+	)
 	flagSet.BoolVarP(&args.IsFullscreen, "fullscreen", "f", false, "Run app in fullscreen mode")
 	flagSet.Uint32VarP(&args.GpuId, "gpu-id", "g", 0, "GPU id [TODO]")
 	flagSet.Uint32VarP(&args.PlaybackId, "playback-id", "p", 0, "Playback audio device id")
@@ -159,6 +166,16 @@ func main() {
 		fmt.Fprintln(os.Stderr, "invalid retry configuration:", err)
 		os.Exit(2)
 	}
+	configuredPlaylist := playback.Playlist{}
+	hasPlaylist := args.PlaylistPath != ""
+	if hasPlaylist {
+		playlist, err := loadPlaylistFile(args.PlaylistPath)
+		if err != nil {
+			fmt.Fprintln(os.Stderr, err)
+			os.Exit(2)
+		}
+		configuredPlaylist = playlist
+	}
 	if args.VideoDomain == "" {
 		args.VideoDomain = args.Domain
 	}
@@ -415,6 +432,28 @@ func main() {
 		)
 	}()
 
+	var playlistRuntime *playerPlaylist
+	var playlistDone chan error
+	if hasPlaylist {
+		playlistRuntime, err = newPlayerPlaylist(
+			configuredPlaylist,
+			retryPolicy,
+			player,
+		)
+		if err != nil {
+			panic(err)
+		}
+		playlistDone = make(chan error, 1)
+		go func() {
+			playlistDone <- playlistRuntime.Run(ctx)
+		}()
+
+		if shouldAutoStartPlaylist(args, configuredPlaylist) &&
+			!playlistRuntime.Select(0) {
+			log.Print("playlist command queue is full")
+		}
+	}
+
 	running := true
 	resized := false
 	fullscreen := args.IsFullscreen
@@ -774,6 +813,11 @@ func main() {
 	if err := <-playbackDone; err != nil && !errors.Is(err, context.Canceled) {
 		log.Printf("playback controller: %v", err)
 	}
+	if playlistDone != nil {
+		if err := <-playlistDone; err != nil && !errors.Is(err, context.Canceled) {
+			log.Printf("playlist runtime: %v", err)
+		}
+	}
 	if err := player.Close(); err != nil {
 		log.Printf("close playback: %v", err)
 	}