whip whep whap

pi/roverd/media_env.go

@@ -0,0 +1,32 @@
+package roverd
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"path/filepath"
+)
+
+const publisherEnvPath = "/var/lib/roverd/whip.env"
+
+func UpdatePublisherEnv(cfg MediaConfig) error {
+	if cfg.PublishURL == "" {
+		return fmt.Errorf("media publishUrl missing")
+	}
+	if cfg.VideoWidth <= 0 || cfg.VideoHeight <= 0 || cfg.VideoFPS <= 0 || cfg.VideoBitrate <= 0 {
+		return fmt.Errorf("invalid media dimensions/bitrate")
+	}
+	if err := os.MkdirAll(filepath.Dir(publisherEnvPath), 0o755); err != nil {
+		return err
+	}
+	var buf bytes.Buffer
+	fmt.Fprintf(&buf, "WHIP_URL=%s\n", cfg.PublishURL)
+	fmt.Fprintf(&buf, "VIDEO_WIDTH=%d\n", cfg.VideoWidth)
+	fmt.Fprintf(&buf, "VIDEO_HEIGHT=%d\n", cfg.VideoHeight)
+	fmt.Fprintf(&buf, "VIDEO_FPS=%d\n", cfg.VideoFPS)
+	fmt.Fprintf(&buf, "VIDEO_BITRATE=%d\n", cfg.VideoBitrate)
+	if err := os.WriteFile(publisherEnvPath, buf.Bytes(), 0o640); err != nil {
+		return err
+	}
+	return nil
+}