mirror of
https://github.com/yt-dlp/yt-dlp.git
synced 2024-12-22 06:00:00 +00:00
Improve output template (see desc)
* Objects can be traversed like `%(field.key1.key2)s` * A number can be added to the field as `%(field+n)s` * Deprecates `--autonumber-start`
This commit is contained in:
pukkandan
parent
26e2805c3f
commit
a439a3a45c
5 changed files with 78 additions and 36 deletions
19
README.md
19
README.md
|
|
@ -395,8 +395,6 @@ ## Filesystem Options:
|
|||
--output-na-placeholder TEXT Placeholder value for unavailable meta
|
||||
fields in output filename template
|
||||
(default: "NA")
|
||||
--autonumber-start NUMBER Specify the start value for %(autonumber)s
|
||||
(default is 1)
|
||||
--restrict-filenames Restrict filenames to only ASCII
|
||||
characters, and avoid "&" and spaces in
|
||||
filenames
|
||||
|
|
@ -833,7 +831,19 @@ # OUTPUT TEMPLATE
|
|||
|
||||
**tl;dr:** [navigate me to examples](#output-template-examples).
|
||||
|
||||
The basic usage of `-o` is not to set any template arguments when downloading a single file, like in `yt-dlp -o funny_video.flv "https://some/video"` (hard-coding file extension like this is not recommended). However, it may contain special sequences that will be replaced when downloading each video. The special sequences may be formatted according to [python string formatting operations](https://docs.python.org/2/library/stdtypes.html#string-formatting). For example, `%(NAME)s` or `%(NAME)05d`. To clarify, that is a percent symbol followed by a name in parentheses, followed by formatting operations. Date/time fields can also be formatted according to [strftime formatting](https://docs.python.org/3/library/datetime.html#strftime-and-strptime-format-codes) by specifying it inside the parantheses separated from the field name using a `>`. For example, `%(duration>%H-%M-%S)s`.
|
||||
The simplest usage of `-o` is not to set any template arguments when downloading a single file, like in `yt-dlp -o funny_video.flv "https://some/video"` (hard-coding file extension like this is _not_ recommended and could break certain postprocessing).
|
||||
|
||||
It may however also contain special sequences that will be replaced when downloading each video. The special sequences may be formatted according to [python string formatting operations](https://docs.python.org/2/library/stdtypes.html#string-formatting). For example, `%(NAME)s` or `%(NAME)05d`. To clarify, that is a percent symbol followed by a name in parentheses, followed by formatting operations.
|
||||
|
||||
The field names themselves (the part inside the parenthesis) can also have some special formatting:
|
||||
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 `>`. Eg: `%(duration>%H-%M-%S)s` or `%(upload_date>%Y-%m-%d)s`
|
||||
2. **Offset numbers**: Numeric fields can have an initial offset specified by using a `+` seperator. Eg: `%(playlist_index+10)03d`. This can also be used in conjunction with the datetime formatting. Eg: `%(epoch+-3600>%H-%M-%S)s`
|
||||
3. **Object traversal**: The dictionaries and lists available in metadata can be traversed by using a `.` (dot) seperator. Eg: `%(tags.0)s` or `%(subtitles.en.-1.ext)`. Note that the fields that become available using this method are not listed below. Use `-j` to see such fields
|
||||
|
||||
To summarize, the general syntax for a field is:
|
||||
```
|
||||
%(name[.keys][+offset][>strf])[flags][width][.precision][length]type
|
||||
```
|
||||
|
||||
Additionally, you can set different output templates for the various metadata files separately from the general output template by specifying the type of file followed by the template separated by a colon `:`. The different filetypes supported are `subtitle`, `thumbnail`, `description`, `annotation`, `infojson`, `pl_description`, `pl_infojson`, `chapter`. For example, `-o '%(title)s.%(ext)s' -o 'thumbnail:%(title)s\%(title)s.%(ext)s'` will put the thumbnails in a folder with the same name as the video.
|
||||
|
||||
|
|
@ -992,7 +1002,7 @@ # FORMAT SELECTION
|
|||
|
||||
**tl;dr:** [navigate me to examples](#format-selection-examples).
|
||||
|
||||
The simplest case is requesting a specific format, for example with `-f 22` you can download the format with format code equal to 22. You can get the list of available format codes for particular video using `--list-formats` or `-F`. Note that these format codes are extractor specific.
|
||||
The simplest case is requesting a specific format, for example with `-f 22` you can download the format with format code equal to 22. You can get the list of available format codes for particular video using `--list-formats` or `-F`. Note that these format codes are extractor specific.
|
||||
|
||||
You can also use a file extension (currently `3gp`, `aac`, `flv`, `m4a`, `mp3`, `mp4`, `ogg`, `wav`, `webm` are supported) to download the best quality format of a particular file extension served as a single file, e.g. `-f webm` will download the best quality format with the `webm` extension served as a single file.
|
||||
|
||||
|
|
@ -1263,6 +1273,7 @@ # DEPRECATED OPTIONS
|
|||
--all-formats -f all
|
||||
--all-subs --sub-langs all --write-subs
|
||||
--autonumber-size NUMBER Use string formatting. Eg: %(autonumber)03d
|
||||
--autonumber-start NUMBER Use internal field formatting like %(autonumber+NUMBER)s
|
||||
--metadata-from-title FORMAT --parse-metadata "%(title)s:FORMAT"
|
||||
--prefer-avconv avconv is no longer officially supported (Alias: --no-prefer-ffmpeg)
|
||||
--prefer-ffmpeg Default (Alias: --no-prefer-avconv)
|
||||
|
|
|
|||
|
|
@ -655,6 +655,8 @@ def test_prepare_filename(self):
|
|||
'height': 1080,
|
||||
'title1': '$PATH',
|
||||
'title2': '%PATH%',
|
||||
'timestamp': 1618488000,
|
||||
'formats': [{'id': 'id1'}, {'id': 'id2'}]
|
||||
}
|
||||
|
||||
def fname(templ, na_placeholder='NA'):
|
||||
|
|
@ -671,6 +673,7 @@ def fname(templ, na_placeholder='NA'):
|
|||
# Or by provided placeholder
|
||||
self.assertEqual(fname(NA_TEST_OUTTMPL, na_placeholder='none'), 'none-none-1234.mp4')
|
||||
self.assertEqual(fname(NA_TEST_OUTTMPL, na_placeholder=''), '--1234.mp4')
|
||||
self.assertEqual(fname('%(height)s.%(ext)s'), '1080.mp4')
|
||||
self.assertEqual(fname('%(height)d.%(ext)s'), '1080.mp4')
|
||||
self.assertEqual(fname('%(height)6d.%(ext)s'), ' 1080.mp4')
|
||||
self.assertEqual(fname('%(height)-6d.%(ext)s'), '1080 .mp4')
|
||||
|
|
@ -688,6 +691,12 @@ def fname(templ, na_placeholder='NA'):
|
|||
self.assertEqual(fname('%%(width)06d.%(ext)s'), '%(width)06d.mp4')
|
||||
self.assertEqual(fname('Hello %(title1)s'), 'Hello $PATH')
|
||||
self.assertEqual(fname('Hello %(title2)s'), 'Hello %PATH%')
|
||||
self.assertEqual(fname('%(timestamp+-1000>%H-%M-%S)s'), '11-43-20')
|
||||
self.assertEqual(fname('%(id+1)05d'), '01235')
|
||||
self.assertEqual(fname('%(width+100)05d'), 'NA')
|
||||
self.assertEqual(fname('%(formats.0)s').replace("u", ""), "{'id' - 'id1'}")
|
||||
self.assertEqual(fname('%(formats.-1.id)s'), 'id2')
|
||||
self.assertEqual(fname('%(formats.2)s'), 'NA')
|
||||
|
||||
def test_format_note(self):
|
||||
ydl = YoutubeDL()
|
||||
|
|
|
|||
|
|
@ -99,6 +99,7 @@
|
|||
strftime_or_none,
|
||||
subtitles_filename,
|
||||
to_high_limit_path,
|
||||
traverse_dict,
|
||||
UnavailableVideoError,
|
||||
url_basename,
|
||||
version_tuple,
|
||||
|
|
@ -796,6 +797,7 @@ def parse_outtmpl(self):
|
|||
def prepare_outtmpl(self, outtmpl, info_dict, sanitize=None):
|
||||
""" Make the template and info_dict suitable for substitution (outtmpl % info_dict)"""
|
||||
template_dict = dict(info_dict)
|
||||
na = self.params.get('outtmpl_na_placeholder', 'NA')
|
||||
|
||||
# duration_string
|
||||
template_dict['duration_string'] = ( # %(duration>%H-%M-%S)s is wrong if duration > 24hrs
|
||||
|
|
@ -821,18 +823,10 @@ def prepare_outtmpl(self, outtmpl, info_dict, sanitize=None):
|
|||
elif template_dict.get('width'):
|
||||
template_dict['resolution'] = '%dx?' % template_dict['width']
|
||||
|
||||
if sanitize is None:
|
||||
sanitize = lambda k, v: v
|
||||
template_dict = dict((k, v if isinstance(v, compat_numeric_types) else sanitize(k, v))
|
||||
for k, v in template_dict.items()
|
||||
if v is not None and not isinstance(v, (list, tuple, dict)))
|
||||
na = self.params.get('outtmpl_na_placeholder', 'NA')
|
||||
template_dict = collections.defaultdict(lambda: na, template_dict)
|
||||
|
||||
# For fields playlist_index and autonumber convert all occurrences
|
||||
# of %(field)s to %(field)0Nd for backward compatibility
|
||||
field_size_compat_map = {
|
||||
'playlist_index': len(str(template_dict['n_entries'])),
|
||||
'playlist_index': len(str(template_dict.get('n_entries', na))),
|
||||
'autonumber': autonumber_size,
|
||||
}
|
||||
FIELD_SIZE_COMPAT_RE = r'(?<!%)%\((?P<field>autonumber|playlist_index)\)s'
|
||||
|
|
@ -844,32 +838,51 @@ def prepare_outtmpl(self, outtmpl, info_dict, sanitize=None):
|
|||
outtmpl)
|
||||
|
||||
numeric_fields = list(self._NUMERIC_FIELDS)
|
||||
if sanitize is None:
|
||||
sanitize = lambda k, v: v
|
||||
|
||||
# Format date
|
||||
FORMAT_DATE_RE = FORMAT_RE.format(r'(?P<key>(?P<field>\w+)>(?P<format>.+?))')
|
||||
for mobj in re.finditer(FORMAT_DATE_RE, outtmpl):
|
||||
conv_type, field, frmt, key = mobj.group('type', 'field', 'format', 'key')
|
||||
if key in template_dict:
|
||||
continue
|
||||
value = strftime_or_none(template_dict.get(field), frmt, na)
|
||||
if conv_type in 'crs': # string
|
||||
value = sanitize(field, value)
|
||||
else: # number
|
||||
numeric_fields.append(key)
|
||||
value = float_or_none(value, default=None)
|
||||
# Internal Formatting = name.key1.key2+number>strf
|
||||
INTERNAL_FORMAT_RE = FORMAT_RE.format(
|
||||
r'''(?P<final_key>
|
||||
(?P<fields>\w+(?:\.[-\w]+)*)
|
||||
(?:\+(?P<add>-?\d+(?:\.\d+)?))?
|
||||
(?:>(?P<strf_format>.+?))?
|
||||
)''')
|
||||
for mobj in re.finditer(INTERNAL_FORMAT_RE, outtmpl):
|
||||
mobj = mobj.groupdict()
|
||||
# Object traversal
|
||||
fields = mobj['fields'].split('.')
|
||||
final_key = mobj['final_key']
|
||||
value = traverse_dict(template_dict, fields)
|
||||
# Offset the value
|
||||
if mobj['add']:
|
||||
value = float_or_none(value)
|
||||
if value is not None:
|
||||
value = value + float(mobj['add'])
|
||||
# Datetime formatting
|
||||
if mobj['strf_format']:
|
||||
value = strftime_or_none(value, mobj['strf_format'])
|
||||
if mobj['type'] in 'crs' and value is not None: # string
|
||||
value = sanitize('%{}'.format(mobj['type']) % fields[-1], value)
|
||||
else: # numeric
|
||||
numeric_fields.append(final_key)
|
||||
value = float_or_none(value)
|
||||
if value is not None:
|
||||
template_dict[key] = value
|
||||
template_dict[final_key] = value
|
||||
|
||||
# Missing numeric fields used together with integer presentation types
|
||||
# in format specification will break the argument substitution since
|
||||
# string NA placeholder is returned for missing fields. We will patch
|
||||
# output template for missing fields to meet string presentation type.
|
||||
for numeric_field in numeric_fields:
|
||||
if numeric_field not in template_dict:
|
||||
if template_dict.get(numeric_field) is None:
|
||||
outtmpl = re.sub(
|
||||
FORMAT_RE.format(re.escape(numeric_field)),
|
||||
r'%({0})s'.format(numeric_field), outtmpl)
|
||||
|
||||
template_dict = collections.defaultdict(lambda: na, (
|
||||
(k, v if isinstance(v, compat_numeric_types) else sanitize(k, v))
|
||||
for k, v in template_dict.items() if v is not None))
|
||||
return outtmpl, template_dict
|
||||
|
||||
def _prepare_filename(self, info_dict, tmpl_type='default'):
|
||||
|
|
|
|||
|
|
@ -908,7 +908,7 @@ def _dict_from_multiple_values_options_callback(
|
|||
filesystem.add_option(
|
||||
'--autonumber-start',
|
||||
dest='autonumber_start', metavar='NUMBER', default=1, type=int,
|
||||
help='Specify the start value for %(autonumber)s (default is %default)')
|
||||
help=optparse.SUPPRESS_HELP)
|
||||
filesystem.add_option(
|
||||
'--restrict-filenames',
|
||||
action='store_true', dest='restrictfilenames', default=False,
|
||||
|
|
|
|||
|
|
@ -6092,11 +6092,20 @@ def load_plugins(name, type, namespace):
|
|||
|
||||
|
||||
def traverse_dict(dictn, keys, casesense=True):
|
||||
if not isinstance(dictn, dict):
|
||||
return None
|
||||
first_key = keys[0]
|
||||
if not casesense:
|
||||
dictn = {key.lower(): val for key, val in dictn.items()}
|
||||
first_key = first_key.lower()
|
||||
value = dictn.get(first_key, None)
|
||||
return value if len(keys) < 2 else traverse_dict(value, keys[1:], casesense)
|
||||
keys = list(keys)[::-1]
|
||||
while keys:
|
||||
key = keys.pop()
|
||||
if isinstance(dictn, dict):
|
||||
if not casesense:
|
||||
dictn = {k.lower(): v for k, v in dictn.items()}
|
||||
key = key.lower()
|
||||
dictn = dictn.get(key)
|
||||
elif isinstance(dictn, (list, tuple, compat_str)):
|
||||
key, n = int_or_none(key), len(dictn)
|
||||
if key is not None and -n <= key < n:
|
||||
dictn = dictn[key]
|
||||
else:
|
||||
dictn = None
|
||||
else:
|
||||
return None
|
||||
return dictn
|
||||
|
|
|
|||
Loading…
Reference in a new issue