From 349b87f563daf9084e2097bc1afc62731c0a6c97 Mon Sep 17 00:00:00 2001
From: garret1317 <garret@airmail.cc>
Date: Mon, 14 Jul 2025 10:04:09 +0100
Subject: [PATCH 1/3] smuggle track_info in case it's not included on the track
 page

---
 yt_dlp/extractor/bandcamp.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/yt_dlp/extractor/bandcamp.py b/yt_dlp/extractor/bandcamp.py
index 939c2800e6..da838338eb 100644
--- a/yt_dlp/extractor/bandcamp.py
+++ b/yt_dlp/extractor/bandcamp.py
@@ -11,10 +11,12 @@
     float_or_none,
     int_or_none,
     parse_filesize,
+    smuggle_url,
     str_or_none,
     try_get,
     unified_strdate,
     unified_timestamp,
+    unsmuggle_url,
     update_url_query,
     url_or_none,
     urljoin,
@@ -127,6 +129,8 @@ def _extract_data_attr(self, webpage, video_id, attr='tralbum', fatal=True):
             attr + ' data', group=2), video_id, fatal=fatal)
 
     def _real_extract(self, url):
+        url, smuggled_track_info = unsmuggle_url(url, None)
+
         title, uploader = self._match_valid_url(url).group('id', 'uploader')
         webpage = self._download_webpage(url, title)
         tralbum = self._extract_data_attr(webpage, title)
@@ -138,7 +142,7 @@ def _real_extract(self, url):
         duration = None
 
         formats = []
-        track_info = try_get(tralbum, lambda x: x['trackinfo'][0], dict)
+        track_info = try_get(tralbum, lambda x: x['trackinfo'][0], dict) or smuggled_track_info
         if track_info:
             file_ = track_info.get('file')
             if isinstance(file_, dict):
@@ -366,7 +370,7 @@ def _real_extract(self, url):
         # Only tracks with duration info have songs
         entries = [
             self.url_result(
-                urljoin(url, t['title_link']), BandcampIE.ie_key(),
+                smuggle_url(urljoin(url, t['title_link']), t), BandcampIE.ie_key(),
                 str_or_none(t.get('track_id') or t.get('id')), t.get('title'))
             for t in track_info
             if t.get('duration')]

From e0c545b14526c07392f222f6571802c7cfd61fc4 Mon Sep 17 00:00:00 2001
From: garret1317 <garret@airmail.cc>
Date: Mon, 14 Jul 2025 14:45:30 +0100
Subject: [PATCH 2/3] only smuggle when track has track_license_id set

---
 yt_dlp/extractor/bandcamp.py | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/yt_dlp/extractor/bandcamp.py b/yt_dlp/extractor/bandcamp.py
index da838338eb..32190c19a6 100644
--- a/yt_dlp/extractor/bandcamp.py
+++ b/yt_dlp/extractor/bandcamp.py
@@ -368,12 +368,17 @@ def _real_extract(self, url):
         if not track_info:
             raise ExtractorError('The page doesn\'t contain any tracks')
         # Only tracks with duration info have songs
-        entries = [
-            self.url_result(
-                smuggle_url(urljoin(url, t['title_link']), t), BandcampIE.ie_key(),
-                str_or_none(t.get('track_id') or t.get('id')), t.get('title'))
-            for t in track_info
-            if t.get('duration')]
+        entries = []
+        for t in track_info:
+            if t.get('duration'):
+                url = urljoin(url, t['title_link'])
+                if t.get('track_license_id'):
+                    # tracks with this set don't have a usable tralbum on their pages
+                    url = smuggle_url(url, t)
+                entries.append(self.url_result(
+                    url, BandcampIE.ie_key(),
+                    str_or_none(t.get('track_id') or t.get('id')), t.get('title'),
+                ))
 
         current = tralbum.get('current') or {}
 

From ace97a88fa889eb0118d6a73bfaa4eb249928e1e Mon Sep 17 00:00:00 2001
From: garret1317 <garret@airmail.cc>
Date: Mon, 14 Jul 2025 14:48:43 +0100
Subject: [PATCH 3/3] add tests for album that requires smuggling

---
 yt_dlp/extractor/bandcamp.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/yt_dlp/extractor/bandcamp.py b/yt_dlp/extractor/bandcamp.py
index 32190c19a6..4b11cc93a2 100644
--- a/yt_dlp/extractor/bandcamp.py
+++ b/yt_dlp/extractor/bandcamp.py
@@ -351,6 +351,15 @@ class BandcampAlbumIE(BandcampIE):  # XXX: Do not subclass from concrete IE
             'description': 'md5:b3cf845ee41b2b1141dc7bde9237255f',
         },
         'playlist_count': 2,
+    }, {
+        # tracks need track_info smuggled because they don't have a usable one on the pages
+        'url': 'https://wetleg.bandcamp.com/album/wet-leg',
+        'info_dict': {
+            'id': 'wet-leg',
+            'title': 'Wet Leg',
+            'uploader_id': 'wetleg',
+        },
+        'playlist_count': 12,
     }]
 
     @classmethod