Add format selection criteria longside, shortside

youtube_dl/YoutubeDL.py

@@ -334,6 +334,11 @@ class YoutubeDL(object):
         'playlist_index',
     ))
 
+    _NUMERIC_FIELDS |= set(('longside', 'shortside',))
+    # ^-- Adding those late is a bad hack to try and make this patch be
+    #     applicable far in the future even as long as maintainers don't
+    #     agree that this list should be easy to maintain (issue 30737).
+
     params = None
     _ies = []
     _pps = []
@@ -1088,7 +1093,7 @@ def _build_format_filter(self, filter_spec):
             '!=': operator.ne,
         }
         operator_rex = re.compile(r'''(?x)\s*
-            (?P<key>width|height|tbr|abr|vbr|asr|filesize|filesize_approx|fps)
+            (?P<key>width|height|shortside|longside|tbr|abr|vbr|asr|filesize|filesize_approx|fps)
             \s*(?P<op>%s)(?P<none_inclusive>\s*\?)?\s*
             (?P<value>[0-9.]+(?:[kKmMgGtTpPeEzZyY]i?[Bb]?)?)
             $
@@ -1376,6 +1381,8 @@ def _merge(formats_info):
                                                 formats_info[1].get('format_id')),
                         'width': formats_info[0].get('width'),
                         'height': formats_info[0].get('height'),
+                        'longside': formats_info[0].get('longside'),
+                        'shortside': formats_info[0].get('shortside'),
                         'resolution': formats_info[0].get('resolution'),
                         'fps': formats_info[0].get('fps'),
                         'vcodec': formats_info[0].get('vcodec'),
@@ -1484,6 +1491,17 @@ def sanitize_numeric_fields(info):
         sanitize_string_field(info_dict, 'id')
         sanitize_numeric_fields(info_dict)
 
+        def add_calculated_video_proprties(fmt):
+            dimensions = [fmt.get(side) for side in ('width', 'height',)]
+            dimensions = [n for n in dimensions if n is not None]
+            if len(dimensions):
+                fmt.update({
+                    'shortside': min(*dimensions),
+                    'longside': max(*dimensions),
+                })
+        for fmt in info_dict['formats']:
+            add_calculated_video_proprties(fmt)
+
         if 'playlist' not in info_dict:
             # It isn't part of a playlist
             info_dict['playlist'] = None