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Merge 1ab53d7d68 into f2919bd28e

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sepro 2025-08-12 20:25:36 -03:00 committed by GitHub
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yt_dlp/__init__.py
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@ -500,6 +500,15 @@ def metadataparser_actions(f):
'To let yt-dlp download and merge the best available formats, simply do not pass any format selection',
'If you know what you are doing and want only the best pre-merged format, use "-f b" instead to suppress this warning')))
# Common mistake: -f mp4
if opts.format == 'mp4':
warnings.append('.\n '.join((
'"-f mp4" selects the best pre-merged mp4 format which is most likely not what you want',
'Many websites do not provide pre-merged mp4 formats. So this will either not work or limit you to low quality formats',
'To download the best h264 video and aac audio in an mp4 container, use "-t mp4" instead',
'This will cause yt-dlp to pick and merge the appropriate formats',
'If you know what you are doing and want the pre-merged mp4 format, use "-f b[ext=mp4]" instead to suppress this warning')))
# --(postprocessor/downloader)-args without name
def report_args_compat(name, value, key1, key2=None, where=None):
if key1 in value and key2 not in value: