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[utils] FormatSorter: Improve size and br

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Closes #1596

Previously, when some formats have accurate size and some approximate,
the ones with accurate size was always prioritized

For formats with known tbr and unknown vbr/abr, we were setting
(vbr=tbr, abr=0) for sorting to work. This is no longer needed.

Authored by pukkandan, u-spec-png
This commit is contained in:
pukkandan 2023-06-19 14:06:39 +05:30
parent 5cc09c004b
commit eedda5252c
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GPG Key ID: 7EEE9E1E817D0A39
2 changed files with 15 additions and 20 deletions
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10
test/test_InfoExtractor.py
View File

@ -917,8 +917,6 @@ def test_parse_m3u8_formats(self):
'acodec': 'mp4a.40.2',
'video_ext': 'mp4',
'audio_ext': 'none',
'vbr': 263.851,
'abr': 0,
}, {
'format_id': '577',
'format_index': None,
@ -936,8 +934,6 @@ def test_parse_m3u8_formats(self):
'acodec': 'mp4a.40.2',
'video_ext': 'mp4',
'audio_ext': 'none',
'vbr': 577.61,
'abr': 0,
}, {
'format_id': '915',
'format_index': None,
@ -955,8 +951,6 @@ def test_parse_m3u8_formats(self):
'acodec': 'mp4a.40.2',
'video_ext': 'mp4',
'audio_ext': 'none',
'vbr': 915.905,
'abr': 0,
}, {
'format_id': '1030',
'format_index': None,
@ -974,8 +968,6 @@ def test_parse_m3u8_formats(self):
'acodec': 'mp4a.40.2',
'video_ext': 'mp4',
'audio_ext': 'none',
'vbr': 1030.138,
'abr': 0,
}, {
'format_id': '1924',
'format_index': None,
@ -993,8 +985,6 @@ def test_parse_m3u8_formats(self):
'acodec': 'mp4a.40.2',
'video_ext': 'mp4',
'audio_ext': 'none',
'vbr': 1924.009,
'abr': 0,
}],
{
'en': [{

25
yt_dlp/utils/_utils.py
View File

@ -5669,6 +5669,7 @@ def orderedSet_from_options(options, alias_dict, *, use_regex=False, start=None)
return orderedSet(requested)
# TODO: Rewrite
class FormatSorter:
regex = r' *((?P<reverse>\+)?(?P<field>[a-zA-Z0-9_]+)((?P<separator>[~:])(?P<limit>.*?))?)? *$'
@ -5717,8 +5718,10 @@ class FormatSorter:
'source': {'convert': 'float', 'field': 'source_preference', 'default': -1},
'codec': {'type': 'combined', 'field': ('vcodec', 'acodec')},
'br': {'type': 'combined', 'field': ('tbr', 'vbr', 'abr'), 'same_limit': True},
'size': {'type': 'combined', 'same_limit': True, 'field': ('filesize', 'fs_approx')},
'br': {'type': 'multiple', 'field': ('tbr', 'vbr', 'abr'),
'function': lambda it: next(filter(None, it), None)},
'size': {'type': 'multiple', 'field': ('filesize', 'fs_approx'),
'function': lambda it: next(filter(None, it), None)},
'ext': {'type': 'combined', 'field': ('vext', 'aext')},
'res': {'type': 'multiple', 'field': ('height', 'width'),
'function': lambda it: (lambda l: min(l) if l else 0)(tuple(filter(None, it)))},
@ -5949,13 +5952,15 @@ def calculate_preference(self, format):
format['preference'] = -100
# Determine missing bitrates
if format.get('tbr') is None:
if format.get('vbr') is not None and format.get('abr') is not None:
format['tbr'] = format.get('vbr', 0) + format.get('abr', 0)
else:
if format.get('vcodec') != 'none' and format.get('vbr') is None:
format['vbr'] = format.get('tbr') - format.get('abr', 0)
if format.get('acodec') != 'none' and format.get('abr') is None:
format['abr'] = format.get('tbr') - format.get('vbr', 0)
if format.get('vcodec') == 'none':
format['vbr'] = 0
if format.get('acodec') == 'none':
format['abr'] = 0
if not format.get('vbr') and format.get('vcodec') != 'none':
format['vbr'] = try_call(lambda: format['tbr'] - format['abr']) or None
if not format.get('abr') and format.get('acodec') != 'none':
format['abr'] = try_call(lambda: format['tbr'] - format['vbr']) or None
if not format.get('tbr'):
format['tbr'] = try_call(lambda: format['vbr'] + format['abr']) or None
return tuple(self._calculate_field_preference(format, field) for field in self._order)