[nhk] extract rtmpt format

youtube_dl/extractor/nhk.py

@@ -69,10 +69,11 @@ class NhkVodIE(InfoExtractor):
             info['formats'] = self._extract_m3u8_formats(
                 'https://nhks-vh.akamaihd.net/i%s/master.m3u8' % audio_path,
                 episode_id, 'm4a', m3u8_id='hls', fatal=False)
+            for proto in ('rtmpt', 'rtmp'):
                 info['formats'].append({
                     'ext': 'flv',
-                'format_id': 'flv',
-                'url': 'rtmp://flv.nhk.or.jp/ondemand/mp4:flv' + audio_path,
+                    'format_id': proto,
+                    'url': '%s://flv.nhk.or.jp/ondemand/mp4:flv%s' % (proto, audio_path),
                     'vcodec': 'none',
                 })
             for f in info['formats']: