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Field additional_urls to download additional videos from metadata

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pukkandan 2021-05-18 23:50:29 +05:30
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2 changed files with 19 additions and 2 deletions
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4
README.md
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@ -1279,7 +1279,9 @@ # MODIFYING METADATA
Note that any field created by this can be used in the [output template](#output-template) and will also affect the media file's metadata added when using `--add-metadata`. Note that any field created by this can be used in the [output template](#output-template) and will also affect the media file's metadata added when using `--add-metadata`.
You can also use this to change only the metadata that is embedded in the media file. To do this, set the value of the corresponding field with a `meta_` prefix. For example, any value you set to `meta_description` field will be added to the `description` field in the file. You can use this to set a different "description" and "synopsis", for example. This option also has a few special uses:
1. You can use this to change the metadata that is embedded in the media file. To do this, set the value of the corresponding field with a `meta_` prefix. For example, any value you set to `meta_description` field will be added to the `description` field in the file. You can use this to set a different "description" and "synopsis", for example
2. You can download an additional URL based on the metadata of the currently downloaded video. To do this, set the field `additional_urls` to the URL that you want to download. Eg: `--parse-metadata "description:(?P<additional_urls>https?://www\.vimeo\.com/\d+)` will download the first vimeo video found in the description
## Modifying metadata examples ## Modifying metadata examples

17
yt_dlp/YoutubeDL.py
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@ -1187,7 +1187,22 @@ def process_ie_result(self, ie_result, download=True, extra_info={}):
if result_type == 'video': if result_type == 'video':
self.add_extra_info(ie_result, extra_info) self.add_extra_info(ie_result, extra_info)
return self.process_video_result(ie_result, download=download) ie_result = self.process_video_result(ie_result, download=download)
additional_urls = ie_result.get('additional_urls')
if additional_urls:
# TODO: Improve MetadataFromFieldPP to allow setting a list
if isinstance(additional_urls, compat_str):
additional_urls = [additional_urls]
self.to_screen(
'[info] %s: %d additional URL(s) requested' % (ie_result['id'], len(additional_urls)))
self.write_debug('Additional URLs: "%s"' % '", "'.join(additional_urls))
ie_result['additional_entries'] = [
self.extract_info(
url, download, extra_info,
force_generic_extractor=self.params.get('force_generic_extractor'))
for url in additional_urls
]
return ie_result
elif result_type == 'url': elif result_type == 'url':
# We have to add extra_info to the results because it may be # We have to add extra_info to the results because it may be
# contained in a playlist # contained in a playlist