audio integration to main

cmd/mxl-pattern/main_test.go

@@ -162,3 +162,70 @@ func TestBuildVideoConfigFromFile(t *testing.T) {
 		t.Fatalf("rate = %d/%d, want file value 60000/1001", cfg.Rate().Num, cfg.Rate().Den)
 	}
 }
+
+func TestBuildAudioConfigDisabled(t *testing.T) {
+	cfg, err := buildAudioConfig(appArgs{})
+	if err != nil {
+		t.Fatalf("buildAudioConfig: %v", err)
+	}
+	if cfg != nil {
+		t.Fatalf("config = %+v, want nil for disabled audio", cfg)
+	}
+}
+
+func TestBuildAudioConfigFromArgs(t *testing.T) {
+	cfg, err := buildAudioConfig(appArgs{
+		audioUUID:         "b3bb5be7-9fe9-4324-a5bb-4c70e1084449",
+		audioChannels:     2,
+		audioSamplingFreq: "48",
+	})
+	if err != nil {
+		t.Fatalf("buildAudioConfig: %v", err)
+	}
+	if cfg == nil {
+		t.Fatal("config is nil")
+	}
+	if cfg.Channels() != 2 {
+		t.Fatalf("channels = %d, want 2", cfg.Channels())
+	}
+	if cfg.Rate().Num != 48000 || cfg.Rate().Den != 1 {
+		t.Fatalf("rate = %d/%d, want 48000/1", cfg.Rate().Num, cfg.Rate().Den)
+	}
+}
+
+func TestBuildAudioConfigFromFile(t *testing.T) {
+	definition, err := flowdef.NewFloat32Audio(
+		"b3bb5be7-9fe9-4324-a5bb-4c70e1084449",
+		8,
+		flowdef.Rational{Numerator: 96000, Denominator: 1},
+	)
+	if err != nil {
+		t.Fatalf("NewFloat32Audio: %v", err)
+	}
+	data, err := json.Marshal(definition)
+	if err != nil {
+		t.Fatalf("json.Marshal: %v", err)
+	}
+	path := t.TempDir() + "/audio.json"
+	if err := os.WriteFile(path, data, 0o600); err != nil {
+		t.Fatalf("os.WriteFile: %v", err)
+	}
+
+	cfg, err := buildAudioConfig(appArgs{
+		audioFlowDefFile:  path,
+		audioChannels:     2,
+		audioSamplingFreq: "48",
+	})
+	if err != nil {
+		t.Fatalf("buildAudioConfig: %v", err)
+	}
+	if cfg == nil {
+		t.Fatal("config is nil")
+	}
+	if cfg.Channels() != 8 {
+		t.Fatalf("channels = %d, want file value 8", cfg.Channels())
+	}
+	if cfg.Rate().Num != 96000 || cfg.Rate().Den != 1 {
+		t.Fatalf("rate = %d/%d, want file value 96000/1", cfg.Rate().Num, cfg.Rate().Den)
+	}
+}