From 9c2b75b5616f058c3970e54c664e9543f86b9f0c Mon Sep 17 00:00:00 2001
From: pukkandan <pukkandan.ytdlp@gmail.com>
Date: Tue, 18 May 2021 23:50:29 +0530
Subject: [PATCH] Field `additional_urls` to download additional videos from
metadata
---
README.md | 4 +++-
yt_dlp/YoutubeDL.py | 17 ++++++++++++++++-
2 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/README.md b/README.md
index e1022da37..d3856dc9f 100644
--- a/README.md
+++ b/README.md
@@ -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`.
-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
diff --git a/yt_dlp/YoutubeDL.py b/yt_dlp/YoutubeDL.py
index ada783bf2..9a2d0abc2 100644
--- a/yt_dlp/YoutubeDL.py
+++ b/yt_dlp/YoutubeDL.py
@@ -1187,7 +1187,22 @@ def process_ie_result(self, ie_result, download=True, extra_info={}):
if result_type == 'video':
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':
# We have to add extra_info to the results because it may be
# contained in a playlist