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Add pre-processor stage video

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Related: #456, #5808
This commit is contained in:
pukkandan
2022-12-30 11:15:41 +05:30
parent 4455918e7f
commit 119e40ef64
4 changed files with 59 additions and 57 deletions
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53
yt_dlp/options.py
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@ -277,6 +277,20 @@ def create_parser():
out_dict[key] = out_dict.get(key, []) + [val] if append else val
setattr(parser.values, option.dest, out_dict)
def when_prefix(default):
return {
'default': {},
'type': 'str',
'action': 'callback',
'callback': _dict_from_options_callback,
'callback_kwargs': {
'allowed_keys': '|'.join(map(re.escape, POSTPROCESS_WHEN)),
'default_key': default,
'multiple_keys': False,
'append': True,
},
}
parser = _YoutubeDLOptionParser()
alias_group = optparse.OptionGroup(parser, 'Aliases')
Formatter = string.Formatter()
@ -1086,28 +1100,16 @@ def create_parser():
help='Do not download the video but write all related files (Alias: --no-download)')
verbosity.add_option(
'-O', '--print',
metavar='[WHEN:]TEMPLATE', dest='forceprint', default={}, type='str',
action='callback', callback=_dict_from_options_callback,
callback_kwargs={
'allowed_keys': 'video|' + '|'.join(map(re.escape, POSTPROCESS_WHEN)),
'default_key': 'video',
'multiple_keys': False,
'append': True,
}, help=(
metavar='[WHEN:]TEMPLATE', dest='forceprint', **when_prefix('video'),
help=(
'Field name or output template to print to screen, optionally prefixed with when to print it, separated by a ":". '
'Supported values of "WHEN" are the same as that of --use-postprocessor, and "video" (default). '
'Supported values of "WHEN" are the same as that of --use-postprocessor (default: video). '
'Implies --quiet. Implies --simulate unless --no-simulate or later stages of WHEN are used. '
'This option can be used multiple times'))
verbosity.add_option(
'--print-to-file',
metavar='[WHEN:]TEMPLATE FILE', dest='print_to_file', default={}, type='str', nargs=2,
action='callback', callback=_dict_from_options_callback,
callback_kwargs={
'allowed_keys': 'video|' + '|'.join(map(re.escape, POSTPROCESS_WHEN)),
'default_key': 'video',
'multiple_keys': False,
'append': True,
}, help=(
metavar='[WHEN:]TEMPLATE FILE', dest='print_to_file', nargs=2, **when_prefix('video'),
help=(
'Append given template to the file. The values of WHEN and TEMPLATE are same as that of --print. '
'FILE uses the same syntax as the output template. This option can be used multiple times'))
verbosity.add_option(
@ -1629,16 +1631,10 @@ def create_parser():
help='Location of the ffmpeg binary; either the path to the binary or its containing directory')
postproc.add_option(
'--exec',
metavar='[WHEN:]CMD', dest='exec_cmd', default={}, type='str',
action='callback', callback=_dict_from_options_callback,
callback_kwargs={
'allowed_keys': '|'.join(map(re.escape, POSTPROCESS_WHEN)),
'default_key': 'after_move',
'multiple_keys': False,
'append': True,
}, help=(
'Execute a command, optionally prefixed with when to execute it (after_move if unspecified), separated by a ":". '
'Supported values of "WHEN" are the same as that of --use-postprocessor. '
metavar='[WHEN:]CMD', dest='exec_cmd', **when_prefix('after_move'),
help=(
'Execute a command, optionally prefixed with when to execute it, separated by a ":". '
'Supported values of "WHEN" are the same as that of --use-postprocessor (default: after_move). '
'Same syntax as the output template can be used to pass any field as arguments to the command. '
'After download, an additional field "filepath" that contains the final path of the downloaded file '
'is also available, and if no fields are passed, %(filepath)q is appended to the end of the command. '
@ -1714,7 +1710,8 @@ def create_parser():
'ARGS are a semicolon ";" delimited list of NAME=VALUE. '
'The "when" argument determines when the postprocessor is invoked. '
'It can be one of "pre_process" (after video extraction), "after_filter" (after video passes filter), '
'"before_dl" (before each video download), "post_process" (after each video download; default), '
'"video" (after --format; before --print/--output), "before_dl" (before each video download), '
'"post_process" (after each video download; default), '
'"after_move" (after moving video file to it\'s final locations), '
'"after_video" (after downloading and processing all formats of a video), '
'or "playlist" (at end of playlist). '