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Fallback to video-only format when selecting by extension

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Closes #3296
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pukkandan 2022-04-04 14:56:02 +05:30
parent 5127e92a94
commit 85e801a9db
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1 changed files with 19 additions and 32 deletions
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39
yt_dlp/YoutubeDL.py
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@ -2188,7 +2188,7 @@ def selector_function(ctx):
yield merged_format yield merged_format
else: else:
format_fallback, format_reverse, format_idx = False, True, 1 format_fallback, seperate_fallback, format_reverse, format_idx = False, None, True, 1
mobj = re.match( mobj = re.match(
r'(?P<bw>best|worst|b|w)(?P<type>video|audio|v|a)?(?P<mod>\*)?(?:\.(?P<n>[1-9]\d*))?$', r'(?P<bw>best|worst|b|w)(?P<type>video|audio|v|a)?(?P<mod>\*)?(?:\.(?P<n>[1-9]\d*))?$',
format_spec) format_spec)
@ -2215,6 +2215,7 @@ def selector_function(ctx):
filter_f = lambda f: f.get('ext') == format_spec and f.get('acodec') != 'none' filter_f = lambda f: f.get('ext') == format_spec and f.get('acodec') != 'none'
elif format_spec in self._format_selection_exts['video']: elif format_spec in self._format_selection_exts['video']:
filter_f = lambda f: f.get('ext') == format_spec and f.get('acodec') != 'none' and f.get('vcodec') != 'none' filter_f = lambda f: f.get('ext') == format_spec and f.get('acodec') != 'none' and f.get('vcodec') != 'none'
seperate_fallback = lambda f: f.get('ext') == format_spec and f.get('vcodec') != 'none'
elif format_spec in self._format_selection_exts['storyboards']: elif format_spec in self._format_selection_exts['storyboards']:
filter_f = lambda f: f.get('ext') == format_spec and f.get('acodec') == 'none' and f.get('vcodec') == 'none' filter_f = lambda f: f.get('ext') == format_spec and f.get('acodec') == 'none' and f.get('vcodec') == 'none'
else: else:
@ -2223,11 +2224,15 @@ def selector_function(ctx):
def selector_function(ctx): def selector_function(ctx):
formats = list(ctx['formats']) formats = list(ctx['formats'])
matches = list(filter(filter_f, formats)) if filter_f is not None else formats matches = list(filter(filter_f, formats)) if filter_f is not None else formats
if format_fallback and ctx['incomplete_formats'] and not matches: if not matches:
if format_fallback and ctx['incomplete_formats']:
# for extractors with incomplete formats (audio only (soundcloud) # for extractors with incomplete formats (audio only (soundcloud)
# or video only (imgur)) best/worst will fallback to # or video only (imgur)) best/worst will fallback to
# best/worst {video,audio}-only format # best/worst {video,audio}-only format
matches = formats matches = formats
elif seperate_fallback and not ctx['has_merged_format']:
# for compatibility with youtube-dl when there is no pre-merged format
matches = list(filter(seperate_fallback, formats))
matches = LazyList(_check_formats(matches[::-1 if format_reverse else 1])) matches = LazyList(_check_formats(matches[::-1 if format_reverse else 1]))
try: try:
yield matches[format_idx - 1] yield matches[format_idx - 1]
@ -2604,33 +2609,15 @@ def is_wellformed(f):
self.report_error(err, tb=False, is_error=False) self.report_error(err, tb=False, is_error=False)
continue continue
# While in format selection we may need to have an access to the original formats_to_download = list(format_selector({
# format set in order to calculate some metrics or do some processing. 'formats': formats,
# For now we need to be able to guess whether original formats provided 'has_merged_format': any('none' not in (f.get('acodec'), f.get('vcodec')) for f in formats),
# by extractor are incomplete or not (i.e. whether extractor provides only 'incomplete_formats': (
# video-only or audio-only formats) for proper formats selection for
# extractors with such incomplete formats (see
# https://github.com/ytdl-org/youtube-dl/pull/5556).
# Since formats may be filtered during format selection and may not match
# the original formats the results may be incorrect. Thus original formats
# or pre-calculated metrics should be passed to format selection routines
# as well.
# We will pass a context object containing all necessary additional data
# instead of just formats.
# This fixes incorrect format selection issue (see
# https://github.com/ytdl-org/youtube-dl/issues/10083).
incomplete_formats = (
# All formats are video-only or # All formats are video-only or
all(f.get('vcodec') != 'none' and f.get('acodec') == 'none' for f in formats) all(f.get('vcodec') != 'none' and f.get('acodec') == 'none' for f in formats)
# all formats are audio-only # all formats are audio-only
or all(f.get('vcodec') == 'none' and f.get('acodec') != 'none' for f in formats)) or all(f.get('vcodec') == 'none' and f.get('acodec') != 'none' for f in formats)),
}))
ctx = {
'formats': formats,
'incomplete_formats': incomplete_formats,
}
formats_to_download = list(format_selector(ctx))
if interactive_format_selection and not formats_to_download: if interactive_format_selection and not formats_to_download:
self.report_error('Requested format is not available', tb=False, is_error=False) self.report_error('Requested format is not available', tb=False, is_error=False)
continue continue