Simplify live video selector to main and sub streams

test_app.py

@@ -4,6 +4,7 @@ import http.client
 import io
 import json
 import os
+import re
 import tempfile
 import threading
 import time
@@ -63,6 +64,13 @@ class WebTests(unittest.TestCase):
         self.assertEqual(headers['X-Frame-Options'], 'DENY')
         self.assertIn("frame-ancestors 'none'", headers['Content-Security-Policy'])
 
+    def test_live_quality_has_only_main_and_sub(self):
+        code, _, body = self.request('/', False)
+        self.assertEqual(code, 200)
+        select = re.search(r'<select id="quality">(.*?)</select>', body.decode()).group(1)
+        self.assertEqual(re.findall(r'<option value="(.*?)">(.*?)</option>', select),
+                         [('hd', '主码流'), ('compat', '子码流')])
+
     def test_origin_rejected(self):
         self.assertEqual(self.request('/api/storage', data={}, origin='https://example.org')[0], 403)