[lbry] add support for channel filters(closes #28385)

youtube_dl/extractor/lbry.py

@@ -6,8 +6,10 @@ import json
 
 from .common import InfoExtractor
 from ..compat import (
+    compat_parse_qs,
     compat_str,
     compat_urllib_parse_unquote,
+    compat_urllib_parse_urlparse,
 )
 from ..utils import (
     determine_ext,
@@ -186,17 +188,18 @@ class LBRYChannelIE(LBRYBaseIE):
     }]
     _PAGE_SIZE = 50
 
-    def _fetch_page(self, claim_id, url, page):
+    def _fetch_page(self, claim_id, url, params, page):
         page += 1
-        result = self._call_api_proxy(
-            'claim_search', claim_id, {
+        page_params = {
             'channel_ids': [claim_id],
             'claim_type': 'stream',
             'no_totals': True,
             'page': page,
             'page_size': self._PAGE_SIZE,
-                'stream_types': self._SUPPORTED_STREAM_TYPES,
-            }, 'page %d' % page)
+        }
+        page_params.update(params)
+        result = self._call_api_proxy(
+            'claim_search', claim_id, page_params, 'page %d' % page)
         for item in (result.get('items') or []):
             stream_claim_name = item.get('name')
             stream_claim_id = item.get('claim_id')
@@ -217,8 +220,31 @@ class LBRYChannelIE(LBRYBaseIE):
         result = self._resolve_url(
             'lbry://' + display_id, display_id, 'channel')
         claim_id = result['claim_id']
+        qs = compat_parse_qs(compat_urllib_parse_urlparse(url).query)
+        content = qs.get('content', [None])[0]
+        params = {
+            'fee_amount': qs.get('fee_amount', ['>=0'])[0],
+            'order_by': {
+                'new': ['release_time'],
+                'top': ['effective_amount'],
+                'trending': ['trending_group', 'trending_mixed'],
+            }[qs.get('order', ['new'])[0]],
+            'stream_types': [content] if content in ['audio', 'video'] else self._SUPPORTED_STREAM_TYPES,
+        }
+        duration = qs.get('duration', [None])[0]
+        if duration:
+            params['duration'] = {
+                'long': '>=1200',
+                'short': '<=240',
+            }[duration]
+        language = qs.get('language', ['all'])[0]
+        if language != 'all':
+            languages = [language]
+            if language == 'en':
+                languages.append('none')
+            params['any_languages'] = languages
         entries = OnDemandPagedList(
-            functools.partial(self._fetch_page, claim_id, url),
+            functools.partial(self._fetch_page, claim_id, url, params),
             self._PAGE_SIZE)
         result_value = result.get('value') or {}
         return self.playlist_result(