[lbry] Extract release_timestamp (closes #28386)

youtube_dl/extractor/lbry.py

@@ -60,6 +60,7 @@ class LBRYBaseIE(InfoExtractor):
             'description': stream_value.get('description'),
             'license': stream_value.get('license'),
             'timestamp': int_or_none(stream.get('timestamp')),
+            'release_timestamp': int_or_none(stream_value.get('release_time')),
             'tags': stream_value.get('tags'),
             'duration': int_or_none(media.get('duration')),
             'channel': try_get(signing_channel, lambda x: x['value']['title']),
@@ -92,6 +93,8 @@ class LBRYIE(LBRYBaseIE):
             'description': 'md5:f6cb5c704b332d37f5119313c2c98f51',
             'timestamp': 1595694354,
             'upload_date': '20200725',
+            'release_timestamp': 1595340697,
+            'release_date': '20200721',
             'width': 1280,
             'height': 720,
         }
@@ -106,6 +109,8 @@ class LBRYIE(LBRYBaseIE):
             'description': 'md5:661ac4f1db09f31728931d7b88807a61',
             'timestamp': 1591312601,
             'upload_date': '20200604',
+            'release_timestamp': 1591312421,
+            'release_date': '20200604',
             'tags': list,
             'duration': 2570,
             'channel': 'The LBRY Foundation',