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[outtmpl] Support multiplication

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Related: #8683
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pukkandan 2023-12-06 03:44:11 +05:30
parent 6a9c7a2b52
commit 993edd3f6e
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2
README.md
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@ -1268,7 +1268,7 @@ # OUTPUT TEMPLATE
1. **Object traversal**: The dictionaries and lists available in metadata can be traversed by using a dot `.` separator; e.g. `%(tags.0)s`, `%(subtitles.en.-1.ext)s`. You can do Python slicing with colon `:`; E.g. `%(id.3:7:-1)s`, `%(formats.:.format_id)s`. Curly braces `{}` can be used to build dictionaries with only specific keys; e.g. `%(formats.:.{format_id,height})#j`. An empty field name `%()s` refers to the entire infodict; e.g. `%(.{id,title})s`. Note that all the fields that become available using this method are not listed below. Use `-j` to see such fields 1. **Object traversal**: The dictionaries and lists available in metadata can be traversed by using a dot `.` separator; e.g. `%(tags.0)s`, `%(subtitles.en.-1.ext)s`. You can do Python slicing with colon `:`; E.g. `%(id.3:7:-1)s`, `%(formats.:.format_id)s`. Curly braces `{}` can be used to build dictionaries with only specific keys; e.g. `%(formats.:.{format_id,height})#j`. An empty field name `%()s` refers to the entire infodict; e.g. `%(.{id,title})s`. Note that all the fields that become available using this method are not listed below. Use `-j` to see such fields
1. **Addition**: Addition and subtraction of numeric fields can be done using `+` and `-` respectively. E.g. `%(playlist_index+10)03d`, `%(n_entries+1-playlist_index)d` 1. **Arithmetic**: Simple arithmetic can be done on numeric fields using `+`, `-` and `*`. E.g. `%(playlist_index+10)03d`, `%(n_entries+1-playlist_index)d`
1. **Date/time Formatting**: Date/time fields can be formatted according to [strftime formatting](https://docs.python.org/3/library/datetime.html#strftime-and-strptime-format-codes) by specifying it separated from the field name using a `>`. E.g. `%(duration>%H-%M-%S)s`, `%(upload_date>%Y-%m-%d)s`, `%(epoch-3600>%H-%M-%S)s` 1. **Date/time Formatting**: Date/time fields can be formatted according to [strftime formatting](https://docs.python.org/3/library/datetime.html#strftime-and-strptime-format-codes) by specifying it separated from the field name using a `>`. E.g. `%(duration>%H-%M-%S)s`, `%(upload_date>%Y-%m-%d)s`, `%(epoch-3600>%H-%M-%S)s`

1
test/test_YoutubeDL.py
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@ -797,6 +797,7 @@ def expect_same_infodict(out):
test('%(title|%)s %(title|%%)s', '% %%') test('%(title|%)s %(title|%%)s', '% %%')
test('%(id+1-height+3)05d', '00158') test('%(id+1-height+3)05d', '00158')
test('%(width+100)05d', 'NA') test('%(width+100)05d', 'NA')
test('%(filesize*8)d', '8192')
test('%(formats.0) 15s', ('% 15s' % FORMATS[0], None)) test('%(formats.0) 15s', ('% 15s' % FORMATS[0], None))
test('%(formats.0)r', (repr(FORMATS[0]), None)) test('%(formats.0)r', (repr(FORMATS[0]), None))
test('%(height.0)03d', '001') test('%(height.0)03d', '001')

1
yt_dlp/YoutubeDL.py
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@ -1179,6 +1179,7 @@ def prepare_outtmpl(self, outtmpl, info_dict, sanitize=False):
MATH_FUNCTIONS = { MATH_FUNCTIONS = {
'+': float.__add__, '+': float.__add__,
'-': float.__sub__, '-': float.__sub__,
'*': float.__mul__,
} }
# Field is of the form key1.key2... # Field is of the form key1.key2...
# where keys (except first) can be string, int, slice or "{field, ...}" # where keys (except first) can be string, int, slice or "{field, ...}"