init commit

internal/audio/formats.go

@@ -0,0 +1,60 @@
+package audio
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+)
+
+// AudioFormat represents a supported audio format
+type AudioFormat int
+
+const (
+	FormatUnknown AudioFormat = iota
+	FormatMP3
+	FormatWAV
+	FormatFLAC
+	FormatOGG
+)
+
+// DetectFormat returns the audio format based on file extension
+func DetectFormat(path string) AudioFormat {
+	ext := strings.ToLower(filepath.Ext(path))
+	switch ext {
+	case ".mp3":
+		return FormatMP3
+	case ".wav":
+		return FormatWAV
+	case ".flac":
+		return FormatFLAC
+	case ".ogg":
+		return FormatOGG
+	default:
+		return FormatUnknown
+	}
+}
+
+// String returns the format name
+func (f AudioFormat) String() string {
+	switch f {
+	case FormatMP3:
+		return "MP3"
+	case FormatWAV:
+		return "WAV"
+	case FormatFLAC:
+		return "FLAC"
+	case FormatOGG:
+		return "OGG"
+	default:
+		return "Unknown"
+	}
+}
+
+// ValidateFormat checks if the file format is supported
+func ValidateFormat(path string) error {
+	format := DetectFormat(path)
+	if format == FormatUnknown {
+		return fmt.Errorf("unsupported audio format: %s", filepath.Ext(path))
+	}
+	return nil
+}