support `or` operator in FORMAT SELECTION filter

[NewUserHa]

Checklist

• I'm reporting a feature request
• I've verified that I'm running youtube-dl version 2019.12.25
• I've searched the bugtracker for similar feature requests including closed ones

Description

-f "bestvideo[vcodec!=av01]+bestaudio/bestvideo[vcodec!=av1]+bestaudio/best"
to
-f "bestvideo[vcodec!=av01 or av1]+bestaudio/best" for convenient.

thanks!

[NewUserHa]

and
-f "bestvideo[vcodec=avc1]+bestaudio/bestvideo[vcodec=vp9]+bestaudio/best"
to
-f "bestvideo[vcodec=avc1 or vp9]+bestaudio/best"

[dstftw]

This is already available with /.

[NewUserHa]

Traceback (most recent call last):
  File "c:\program files\python37\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "c:\program files\python37\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Program Files\Python37\Scripts\youtube-dl.exe\__main__.py", line 9, in <module>
  File "c:\program files\python37\lib\site-packages\youtube_dl\__init__.py", line 474, in main
    _real_main(argv)
  File "c:\program files\python37\lib\site-packages\youtube_dl\__init__.py", line 464, in _real_main
    retcode = ydl.download(all_urls)
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 2018, in download
    url, force_generic_extractor=self.params.get('force_generic_extractor', False))
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 807, in extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 1007, in process_ie_result
    extra_info=extra)
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 869, in process_ie_result
    extra_info=extra_info)
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 807, in extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 862, in process_ie_result
    return self.process_video_result(ie_result, download=download)
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 1604, in process_video_result
    format_selector = self.build_format_selector(req_format)
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 1386, in build_format_selector
    return _build_selector_function(parsed_selector)
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 1233, in _build_selector_function
    fs = [_build_selector_function(s) for s in selector]
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 1233, in <listcomp>
    fs = [_build_selector_function(s) for s in selector]
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 1243, in _build_selector_function
    fs = [_build_selector_function(s) for s in selector.selector]
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 1243, in <listcomp>
    fs = [_build_selector_function(s) for s in selector.selector]
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 1343, in _build_selector_function
    video_selector, audio_selector = map(_build_selector_function, selector.selector)
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 1350, in _build_selector_function
    filters = [self._build_format_filter(f) for f in selector.filters]
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 1350, in <listcomp>
    filters = [self._build_format_filter(f) for f in selector.filters]
  File "c:\program files\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 1090, in _build_format_filter
    raise ValueError('Invalid filter specification %r' % filter_spec)
ValueError: Invalid filter specification 'vcodec=avc1/vp9'

[dstftw]

Not inside brackets. You must specify complete expression separated by /. Read FAQ.