[pinterest] support 'story_pin_music_block' blocks (#6421)

gallery_dl/extractor/pinterest.py

@@ -122,6 +122,11 @@ class PinterestExtractor(Extractor):
                     media = self._extract_video(video)
                     media["media_id"] = video.get("id") or ""
 
+                elif type == "story_pin_music_block":
+                    media = block["audio"]
+                    media["url"] = media["audio_url"]
+                    media["media_id"] = media.get("id") or ""
+
                 elif type == "story_pin_paragraph_block":
                     media = {"url": "text:" + block["text"],
                              "extension": "txt",

test/results/pinterest.py

@@ -49,6 +49,16 @@ __tests__ = (
     "_ytdl_manifest": "hls",
 },
 
+{
+    "#url"     : "https://www.pinterest.com/pin/606508274845593025/",
+    "#comment" : "story pin with audio (#6188)",
+    "#class"   : pinterest.PinterestPinExtractor,
+    "#range"   : "2",
+    "#urls"    : "https://v1.pinimg.com/audios/mp3/5d/37/74/5d37749bde03855c1292f8869c8d9387.mp3",
+
+    "extension": "mp3",
+},
+
 {
     "#url"     : "https://jp.pinterest.com/pin/851532242064221228/",
     "#comment" : "story pin with text",