by this field.
-1 for default (order by other properties),
-2 or smaller for less than default.
+ * quality Order number of the video quality of this
+ format, irrespective of the file format.
+ -1 for default (order by other properties),
+ -2 or smaller for less than default.
url: Final video URL.
ext: Video filename extension.
format: The video format, defaults to ext (used for --get-format)
return (
preference,
+ f.get('quality') if f.get('quality') is not None else -1,
f.get('height') if f.get('height') is not None else -1,
f.get('width') if f.get('width') is not None else -1,
ext_preference,