app run in app.go

internal/app/app.go

@@ -0,0 +1,66 @@
+package app
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log"
+
+	"mxl-pattern-generator/internal/audio"
+	"mxl-pattern-generator/internal/video"
+
+	"github.com/qvest-digital/go-mxl/mxl"
+)
+
+const (
+	Name    = "MXL pattern generator"
+	Version = "0.1.0"
+)
+
+type Config struct {
+	Domain string
+	Video  video.Config
+	Audio  *audio.Config
+}
+
+func Run(ctx context.Context, cfg Config) (runErr error) {
+	log.Printf("%s %s", Name, Version)
+	log.Printf("Domain: %s", cfg.Domain)
+	log.Printf("Video: %dx%d %d/%d",
+		cfg.Video.Width(), cfg.Video.Height(), cfg.Video.Rate().Num, cfg.Video.Rate().Den)
+	log.Printf("Video ID: %s", cfg.Video.ID())
+	if cfg.Audio != nil {
+		log.Printf("Audio: %d channels %d/%d Hz %.0f dBFS",
+			cfg.Audio.Channels(), cfg.Audio.Rate().Num, cfg.Audio.Rate().Den, cfg.Audio.LevelDBFS)
+		log.Printf("Audio ID: %s", cfg.Audio.ID())
+	}
+
+	inst, err := mxl.NewInstance(cfg.Domain, "")
+	if err != nil {
+		return fmt.Errorf("initialize MXL domain %q: %w", cfg.Domain, err)
+	}
+	defer func() {
+		if err := inst.Close(); err != nil {
+			runErr = errors.Join(runErr, fmt.Errorf("close MXL instance: %w", err))
+		}
+	}()
+
+	runners := []Runner{
+		{
+			Name: "video",
+			Run: func(ctx context.Context) error {
+				return video.Run(ctx, inst, cfg.Video)
+			},
+		},
+	}
+	if cfg.Audio != nil {
+		runners = append(runners, Runner{
+			Name: "audio",
+			Run: func(ctx context.Context) error {
+				return audio.Run(ctx, inst, *cfg.Audio)
+			},
+		})
+	}
+
+	return RunConcurrent(ctx, runners...)
+}