feat: implement initial configuration and gstreamer pipeline setup

internal/ndi/discovery.go

@@ -0,0 +1,60 @@
+package ndi
+
+import (
+	"fmt"
+	"github.com/bitfocus/gondi"
+	"os"
+)
+
+var NDI_LIB_PATH = ""
+
+func discovery() {
+	var (
+		libndi    = ""
+		libndiEnv = os.Getenv("LIBNDI")
+	)
+	if libndiEnv != "" {
+		libndi = libndiEnv
+	} else if NDI_LIB_PATH != "" {
+		libndi = fmt.Sprintf("%s/lib/libndi.so", NDI_LIB_PATH)
+	} else {
+		fmt.Println("LIBNDI environment variable is not set")
+		return
+	}
+
+	fmt.Println("Initializing NDI")
+	if err := gondi.InitLibrary(libndi); err != nil {
+		fmt.Println("Failed to initialize NDI library:", err)
+		return
+	}
+
+	version := gondi.GetVersion()
+	fmt.Printf("NDI version: %s\n", version)
+
+	findInstance, err := gondi.NewFindInstance(true, "", "")
+	if err != nil {
+		panic(err)
+	}
+	defer findInstance.Destroy()
+
+	// Wait for sources to appear
+	fmt.Println("Looking for sources...")
+	for {
+		more := findInstance.WaitForSources(5000)
+		if !more {
+			break
+		}
+	}
+
+	// Fetch the sources
+	sources := findInstance.GetCurrentSources()
+
+	if len(sources) == 0 {
+		fmt.Println("No sources found")
+		return
+	}
+
+	for _, source := range sources {
+		fmt.Printf("Found source: %q: %q\n", source.Name(), source.Address())
+	}
+}