unify folder naming with resolved audio profiles across providers

internal/provider/qobuz/client.go

@@ -275,11 +275,13 @@ func (c *Client) GetDownloadable(ctx context.Context, item string, quality int)
 	}
 
 	ext := qobuzDownloadExtension(resp, quality, streamURL)
+	profile := qobuzAudioProfile(resp, quality, ext)
 
 	return &provider.Downloadable{
 		URL:       streamURL,
 		Extension: ext,
 		Source:    "qobuz",
+		Audio:     profile,
 	}, nil
 }
 
@@ -318,6 +320,81 @@ func qobuzDownloadExtension(resp map[string]any, quality int, streamURL string)
 	return "mp3"
 }
 
+func qobuzAudioProfile(resp map[string]any, requestedQuality int, ext string) provider.AudioProfile {
+	if formatID, ok := intValue(resp["format_id"]); ok {
+		switch formatID {
+		case 5:
+			return provider.AudioProfile{
+				Container:    "MP3",
+				Codec:        "MP3",
+				Quality:      "HIGH",
+				BitDepth:     16,
+				SamplingRate: "44.1",
+				BitrateKbps:  320,
+			}
+		case 6:
+			return provider.AudioProfile{
+				Container:    "FLAC",
+				Codec:        "FLAC",
+				Quality:      "LOSSLESS",
+				BitDepth:     16,
+				SamplingRate: "44.1",
+			}
+		case 7:
+			return provider.AudioProfile{
+				Container:    "FLAC",
+				Codec:        "FLAC",
+				Quality:      "HI_RES",
+				BitDepth:     24,
+				SamplingRate: "96",
+			}
+		case 27:
+			return provider.AudioProfile{
+				Container:    "FLAC",
+				Codec:        "FLAC",
+				Quality:      "HI_RES",
+				BitDepth:     24,
+				SamplingRate: "192",
+			}
+		}
+	}
+
+	if strings.EqualFold(ext, "mp3") {
+		bitrate := 128
+		if requestedQuality >= 1 {
+			bitrate = 320
+		}
+		return provider.AudioProfile{
+			Container:    "MP3",
+			Codec:        "MP3",
+			Quality:      "HIGH",
+			BitDepth:     16,
+			SamplingRate: "44.1",
+			BitrateKbps:  bitrate,
+		}
+	}
+
+	quality := "LOSSLESS"
+	bitDepth := 16
+	sampling := "44.1"
+	if requestedQuality >= 4 {
+		quality = "HI_RES"
+		bitDepth = 24
+		sampling = "192"
+	} else if requestedQuality >= 3 {
+		quality = "HI_RES"
+		bitDepth = 24
+		sampling = "96"
+	}
+	return provider.AudioProfile{
+		Container:    "FLAC",
+		Codec:        "FLAC",
+		Quality:      quality,
+		BitDepth:     bitDepth,
+		SamplingRate: sampling,
+	}
+}
+
 func (c *Client) Close() error {
 	return nil
 }