From 794ec2b5256a8219a0e50f3e14165f0914189db4 Mon Sep 17 00:00:00 2001
From: garret1317 <garret@airmail.cc>
Date: Thu, 10 Jul 2025 22:12:28 +0100
Subject: Add basic radiko podcast extractors

---
 yt_dlp_plugins/extractor/radiko_podcast.py | 114 +++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 yt_dlp_plugins/extractor/radiko_podcast.py

(limited to 'yt_dlp_plugins/extractor/radiko_podcast.py')

diff --git a/yt_dlp_plugins/extractor/radiko_podcast.py b/yt_dlp_plugins/extractor/radiko_podcast.py
new file mode 100644
index 0000000..93e1408
--- /dev/null
+++ b/yt_dlp_plugins/extractor/radiko_podcast.py
@@ -0,0 +1,114 @@
+from yt_dlp.extractor.common import InfoExtractor
+from yt_dlp.utils import (
+	clean_html,
+	traverse_obj,
+	url_or_none,
+	str_or_none,
+)
+
+# nice simple one for a change...
+# the app uses a similar system to regular programmes, thankfully the site doesn't
+# but it does need protobufs to get more than 20 items...
+
+class _RadikoPodcastBaseIE(InfoExtractor):
+
+	def _extract_episode(self, episode_info):
+		return {
+			**traverse_obj(episode_info, {
+				"id": ("id", {str_or_none}),
+				"url": ("audio", "url"),
+				"duration": ("audio", "durationSec"),
+
+				"title": "title",
+				"description": ("description", {clean_html}),
+				"timestamp": ("startAt", "seconds"),
+
+				"series": "channelTitle",
+				"series_id": "channelId",
+				"channel": "stationName",
+				"uploader": "stationName",
+			}),
+			"thumbnail": traverse_obj(episode_info, ("imageUrl", {url_or_none}))
+				or traverse_obj(episode_info, ("channelImageUrl", {url_or_none})),
+
+			# so that --download-archive still works if you download from the playlist page
+			"webpage_url": "https://radiko.jp/podcast/episodes/{id}".format(id=episode_info.get("id")),
+			'extractor_key': RadikoPodcastEpisodeIE.ie_key(),
+			'extractor': 'RadikoPodcastEpisode',
+		}
+
+
+class RadikoPodcastEpisodeIE(_RadikoPodcastBaseIE):
+	_VALID_URL = r"https?://radiko\.jp/podcast/episodes/(?P<id>[a-f0-9-]+)"
+
+	_TESTS = [{
+		"url": "https://radiko.jp/podcast/episodes/cc8cf709-a50b-4846-aa0e-91ab10cf8bff",
+		"info_dict": {
+			"id": "cc8cf709-a50b-4846-aa0e-91ab10cf8bff",
+			"ext": "mp3",
+			'title': '2025.6.26 おしゃべり技術くん',
+			'description': 'md5:1c4048025f68d6da053dd879a5d62304',
+			'duration': 717,
+			'thumbnail': 'https://podcast-static.cf.radiko.jp/09f27a48-ae04-4ce7-a024-572460e46eb7-20240214160012.png',
+			'series': 'おしゃべり技術くん',
+			'series_id': '09f27a48-ae04-4ce7-a024-572460e46eb7',
+			'timestamp': 1751554800,
+			'upload_date': '20250703',
+		},
+	}]
+
+	def _real_extract(self, url):
+		video_id = self._match_id(url)
+		webpage = self._download_webpage(url, video_id)
+		next_data = self._search_nextjs_data(webpage, video_id)["props"]["pageProps"]
+
+		episode_info = next_data["podcastEpisode"]
+
+		return self._extract_episode(episode_info)
+
+
+class RadikoPodcastChannelIE(_RadikoPodcastBaseIE):
+	_VALID_URL = r"https?://radiko\.jp/podcast/channels/(?P<id>[a-f0-9-]+)"
+
+	_TESTS = [{
+		"url": "https://radiko.jp/podcast/channels/09f27a48-ae04-4ce7-a024-572460e46eb7",
+		"info_dict": {
+			"id": "09f27a48-ae04-4ce7-a024-572460e46eb7"
+		},
+		'playlist_mincount': 20,
+		'expected_warnings': ['Currently this extractor can only extract the latest 20 episodes'],
+	}]
+
+	def _real_extract(self, url):
+		video_id = self._match_id(url)
+		webpage = self._download_webpage(url, video_id)
+		next_data = self._search_nextjs_data(webpage, video_id)["props"]["pageProps"]
+
+		channel_info = next_data["podcastChannel"]
+		episode_list_response = next_data["listPodcastEpisodesResponse"]
+
+
+		def entries():
+			for episode in episode_list_response["episodesList"]:
+				yield self._extract_episode(episode)
+
+		if traverse_obj(episode_list_response, "hasNextPage"):
+			self.report_warning(f'Currently this extractor can only extract the latest {len(episode_list_response["episodesList"])} episodes')
+
+		# TODO: GRPC/protobuf stuff to get the next page
+		# https://api.annex.radiko.jp/radiko.PodcastService/ListPodcastEpisodes
+		# see さらに表示 button on site
+
+
+		return {
+			"_type": "playlist",
+			"id": video_id,
+			**traverse_obj(channel_info, {
+				"playlist_title": "title",
+				"playlist_id": "id",
+				"playlist_description": ("description", {clean_html}),
+				"playlist_thumbnail": ("imageUrl", {url_or_none}),
+
+			}),
+			"entries": entries(),
+		}
-- 
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